Preface |
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xi | |
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1.1 Plastics and polymers |
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1 | (1) |
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1.2 The development of the macromolecular concept |
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1 | (1) |
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2 | (1) |
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3 | (1) |
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1.5 Properties of common thermoplastics |
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4 | (3) |
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4 | (1) |
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4 | (1) |
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4 | (2) |
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1.5.4 Mechanical properties |
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6 | (1) |
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1.6 Polymer processing and product features |
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7 | (3) |
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7 | (1) |
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7 | (1) |
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1.6.3 Injection mouldings |
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7 | (2) |
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1.6.4 Thermoformed products |
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9 | (1) |
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9 | (1) |
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1.6.6 Injection blow moulded bottles |
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9 | (1) |
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10 | (3) |
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2 Molecular structures and polymer manufacture |
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13 | (1) |
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13 | (3) |
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2.2.1 Addition polymerization |
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14 | (1) |
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2.2.2 Step-growth polymerization |
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15 | (1) |
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2.3 Molecular weight distribution |
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16 | (3) |
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2.3.1 Number-average and weight-average molecular weight |
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16 | (2) |
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2.3.2 Size-exclusion chromatography |
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18 | (1) |
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2.3.3 Viscometry and the viscosity-average molecular weight |
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18 | (1) |
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2.3.4 The importance of Mn and Mw |
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19 | (1) |
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19 | (2) |
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2.4.1 Stereoregular addition polymers |
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19 | (1) |
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20 | (1) |
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21 | (1) |
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2.5 Branched and cross-linked polymers (thermosets and rubbers) |
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21 | (3) |
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21 | (1) |
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22 | (1) |
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23 | (1) |
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2.6 Bonding and intermolecular forces in polymers |
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24 | (1) |
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2.7 Industrial polymer production and economics of manufacture |
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25 | (3) |
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2.7.1 Monomer manufacture |
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25 | (1) |
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2.7.2 Polymerization processes |
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25 | (1) |
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2.7.3 The economics of scale |
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26 | (2) |
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28 | (1) |
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2.8 Grades and applications of commodity plastic |
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28 | (5) |
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2.8.1 Polyethylenes (polyethenes) |
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28 | (1) |
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29 | (1) |
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30 | (1) |
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2.8.4 Polystyrene and toughened derivatives |
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31 | (2) |
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3 Amorphous polymers and the glass transition |
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33 | (1) |
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3.2 Modelling the shape of a polymer molecule |
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33 | (8) |
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3.2.1 Conformations of the C---C bond |
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33 | (1) |
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3.2.2 Walks on a diamond lattice |
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34 | (1) |
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3.2.3 Effect of molecular weight on molecular size |
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34 | (3) |
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3.2.4 Entanglements in polymer melts |
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37 | (1) |
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3.2.5 Network chain elasticity |
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38 | (2) |
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40 | (1) |
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3.3 The glass transition temperature |
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41 | (8) |
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3.3.1 Rotational and translational motions in the liquid state |
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41 | (1) |
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42 | (1) |
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43 | (2) |
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45 | (1) |
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3.3.5 Measurement of Tg using thermomechanical analysis |
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45 | (1) |
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3.3.6 Glass microstructure |
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46 | (1) |
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3.3.7 Elastic moduli of glasses |
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47 | (2) |
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4 Semi-crystalline polymers |
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49 | (1) |
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49 | (5) |
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4.2.1 Crystal lattice and unit cell |
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49 | (2) |
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4.2.2 Crystal elastic moduli |
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51 | (1) |
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51 | (1) |
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4.2.4 The three-phase model |
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52 | (1) |
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52 | (2) |
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4.3 Percentage (or degree of) crystallinity |
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54 | (3) |
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54 | (1) |
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4.3.2 Differential scanning calorimetry (DSC) |
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55 | (1) |
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55 | (2) |
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4.4 Crystalline phase orientation |
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57 | (2) |
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4.4.1 Uniaxially stretched fibre, tape or film |
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58 | (1) |
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4.4.2 Biaxially stretched products |
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59 | (1) |
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4.5 Crystallization kinetics |
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59 | (5) |
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4.5.1 Isothermal crystallization kinetics |
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61 | (1) |
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4.5.2 Temperature dependence of the crystallization rate |
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62 | (2) |
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4.6 Modulus of spherulitic polyethylene |
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64 | (3) |
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4.6.1 Deformation mechanisms in spherulites |
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64 | (2) |
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4.6.2 Elastic moduli of spherulitic polyethylene |
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66 | (1) |
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67 | (1) |
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5.2 Heat transfer mechanisms |
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68 | (3) |
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68 | (2) |
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70 | (1) |
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70 | (1) |
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70 | (1) |
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71 | (1) |
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5.3 Melt flow of thermoplastics |
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71 | (3) |
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71 | (1) |
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72 | (1) |
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5.3.3 Effects of molecular weight on melt flow |
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73 | (1) |
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5.3.4 Effects of temperature on melt flow |
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74 | (1) |
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5.3.5 Effects of shear rate on melt flow |
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74 | (1) |
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74 | (5) |
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5.4.1 Melting and plasticization |
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74 | (1) |
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75 | (2) |
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5.4.3 Extrusion solidification |
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77 | (1) |
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5.4.4 Ram extrusion of ultrahigh molecular weight polythene powder |
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77 | (2) |
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5.5 Processes involving melt inflation |
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79 | (6) |
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79 | (1) |
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5.5.2 Extrusion blow moulding |
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80 | (2) |
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5.5.3 Injection blow moulding |
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82 | (1) |
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83 | (2) |
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85 | (4) |
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85 | (1) |
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5.6.2 Cycle of operations |
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85 | (2) |
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5.6.3 Control of mould filling |
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87 | (1) |
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5.6.4 Analysis of mould filling |
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87 | (2) |
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5.7 Thermoset processing --- reaction injection moulding |
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89 | (2) |
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5.8 Additive manufacturing |
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91 | (4) |
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91 | (1) |
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5.8.2 Additive manufacturing for polymer components |
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92 | (1) |
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5.8.3 Laser sintering of polymers |
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92 | (1) |
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5.8.4 Other developments in additive manufacture for polymers |
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93 | (2) |
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6 Effects of melt processing |
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95 | (1) |
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6.2 Microstructural changes |
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95 | (6) |
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6.2.1 Effects of cooling rate on crystallinity and density |
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95 | (2) |
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6.2.2 Melt stress effects for glassy polymers |
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97 | (2) |
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6.2.3 Melt stress effects for semi-crystalline polymers |
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99 | (1) |
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100 | (1) |
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101 | (5) |
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6.3.1 Shrinkage and distortion |
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101 | (2) |
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103 | (1) |
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6.3.3 Residual stresses in extruclates |
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103 | (2) |
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6.3.4 Residual stresses in injection mouldings |
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105 | (1) |
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6.4 Fusion of particle and bead polymers |
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106 | (5) |
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106 | (1) |
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6.4.2 Polyvinyl chloride powder processing |
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107 | (1) |
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6.4.3 Ultrahigh molecular weight polyethylene powder processing |
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108 | (1) |
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6.4.4 Polystyrene foam bead processing |
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109 | (2) |
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111 | (1) |
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7.2 Linear viscoelastic models |
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111 | (5) |
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7.2.1 The Voigt model for creep |
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111 | (2) |
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7.2.2 Creep compliance and the generalized Voigt model |
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113 | (1) |
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7.2.3 Boltzmann superposition principle and stress relaxation modulus |
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114 | (1) |
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7.2.4 Temperature dependence of viscoelastic behaviour |
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115 | (1) |
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116 | (2) |
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116 | (1) |
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7.3.2 Linear viscoelastic design |
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116 | (2) |
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7.3.3 Non-linear viscoelastic design |
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118 | (1) |
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7.3.4 Recovery and intermittent creep |
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118 | (1) |
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7.4 Cyclic deformation and dynamic mechanical analysis |
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118 | (9) |
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7.4.1 Linear viscoelastic analysis |
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118 | (4) |
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7.4.2 Isolation of machine vibration |
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122 | (1) |
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7.4.3 Constrained layer damping of metal panels |
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123 | (1) |
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7.4.4 High damping polymers |
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124 | (3) |
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8.1 Molecular mechanisms of yielding |
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127 | (3) |
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127 | (1) |
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8.1.2 Semi-crystalline polymers |
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128 | (2) |
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8.2 Yield under different stress states |
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130 | (6) |
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8.2.1 Tensile instability and necking |
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130 | (2) |
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132 | (1) |
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8.2.3 Buckling and yielding in compression |
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133 | (1) |
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8.2.4 Localized yield in compression --- hardness |
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134 | (1) |
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8.2.5 Localized yield -- scratching of surfaces |
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135 | (1) |
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8.2.6 Localized yield -- film or sheet penetration |
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135 | (1) |
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8.3 Yield on different time scales |
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136 | (1) |
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8.3.1 Strain rate dependence |
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136 | (1) |
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136 | (1) |
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8.4 Orientation hardening |
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136 | (2) |
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138 | (5) |
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138 | (2) |
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8.5.2 Energetics of craze growth |
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140 | (1) |
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8.5.3 Plastic collapse of closed-cell foams |
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141 | (1) |
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142 | (1) |
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143 | (1) |
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9.2 Fracture surfaces and their interpretation |
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144 | (1) |
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144 | (4) |
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9.3.1 Elastic stress concentrations |
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144 | (2) |
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9.3.2 Yield stress concentrations |
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146 | (1) |
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9.3.3 Cracks in brittle surface layers |
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147 | (1) |
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147 | (1) |
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148 | (1) |
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148 | (5) |
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9.4.1 Fracture mechanics: the stress intensity factor of a crack tip stress field |
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148 | (1) |
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9.4.2 Stress intensity factors for certain specimen geometries |
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148 | (1) |
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9.4.3 Fracture toughness/C/c |
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149 | (1) |
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149 | (2) |
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9.4.5 Plane strain fracture in thick sheet |
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151 | (1) |
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9.4.6 Plane stress fracture in thin sheet |
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151 | (1) |
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9.4.7 Strain rate and crack velocity effects |
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152 | (1) |
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153 | (6) |
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9.5.1 Izod and Charpy impact tests on bars |
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153 | (1) |
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9.5.2 Impact tests on sheet |
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154 | (1) |
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9.5.3 Impact tests on products |
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155 | (1) |
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9.5.4 Instrumented impact tests |
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156 | (1) |
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157 | (2) |
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10 The ageing of polymers |
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10.1 Introduction: ageing, degradation and environmental effects |
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159 | (1) |
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10.2 Degradation during processing |
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160 | (2) |
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160 | (1) |
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10.2.2 Polyvinyl chloride |
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161 | (1) |
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10.2.3 Water and step-growth polymers |
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162 | (1) |
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10.3 Degradation at elevated temperatures |
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162 | (4) |
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10.3.1 Oxidation of polyolefins |
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162 | (2) |
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164 | (1) |
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10.3.3 Maximum use temperature |
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165 | (1) |
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10.3.4 Studying thermal degradation |
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166 | (1) |
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166 | (3) |
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166 | (2) |
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168 | (1) |
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10.4.3 Fire and flame retardants |
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168 | (1) |
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10.4.4 Fires involving cable and foam |
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169 | (1) |
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169 | (4) |
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10.5.1 Ultraviolet wavelengths and absorption coefficients |
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169 | (1) |
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10.5.2 Effects of weathering |
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170 | (1) |
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10.5.3 Protection against photo-oxidation |
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171 | (1) |
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10.5.4 Accelerated exposure tests |
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172 | (1) |
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10.6 Environmental stress cracking |
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173 | (1) |
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10.6.1 Environmental stress cracking phenomena |
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173 | (1) |
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10.6.2 Craze swelling in liquids |
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174 | (1) |
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10.6.3 Crack and craze initiation |
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175 | (1) |
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10.6.4 Crack growth in a liquid environment |
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176 | (1) |
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10.6.5 The complete failure process |
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176 | (2) |
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10.7 Physical ageing (enthalpy or volume relaxation) |
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178 | (2) |
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10.8 Secondary crystallization |
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180 | (3) |
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183 | (1) |
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183 | (1) |
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11.1.2 Steady-state gas diffusion |
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184 | (2) |
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11.1.3 Transient effects in gaseous diffusion |
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186 | (1) |
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11.1.4 Packaging applications |
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187 | (2) |
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11.1.5 Metal and ceramic coatings |
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189 | (1) |
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190 | (1) |
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11.2.1 High-density polyethylene fuel tanks |
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191 | (1) |
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11.2.2 Extraction of additives by food liquids |
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192 | (1) |
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11.2.3 Reverse osmosis and dialysis membranes |
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192 | (1) |
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192 | (2) |
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194 | (5) |
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11.4.1 Refraction and reflection of light |
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195 | (2) |
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197 | (1) |
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198 | (1) |
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199 | (4) |
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203 | (1) |
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12.2 Volume and surface resistivity |
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204 | (1) |
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12.3 Insulation and applications of semiconducting polymers |
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205 | (8) |
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12.3.1 Low-voltage electrical insulation |
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205 | (1) |
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12.3.2 High-voltage insulation |
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205 | (2) |
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12.3.3 Static electrification |
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207 | (4) |
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12.3.4 Electromagnetic screening of plastic mouldings |
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211 | (1) |
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12.3.5 Semiconducting polymers for batteries and fuel cells |
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211 | (2) |
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12.4 Dielectric behaviour |
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213 | (5) |
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12.4.1 Dielectric constant and losses |
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214 | (1) |
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12.4.2 Polarization loss processes |
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215 | (1) |
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12.4.3 High-frequency insulation and capacitors |
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216 | (2) |
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12.5 Flexible switches and electrets |
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218 | (3) |
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218 | (1) |
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218 | (1) |
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12.5.3 Piezoelectric film |
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219 | (2) |
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13 Multi-component polymers --- improving the properties of polymers |
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221 | (1) |
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221 | (4) |
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13.2.1 Toughening systems and their microstructure |
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221 | (1) |
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13.2.2 Elastic moduli and stress concentrations |
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222 | (1) |
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13.2.3 Initiation of crazes or yielding |
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223 | (1) |
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224 | (1) |
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225 | (4) |
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13.3.1 Miscibility and compatibility |
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226 | (1) |
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226 | (1) |
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13.3.3 Detection of miscibility |
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227 | (1) |
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13.3.4 The driving force for miscibility |
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227 | (2) |
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13.4 Phase-separated structures |
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229 | (4) |
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229 | (1) |
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230 | (2) |
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13.4.3 Thermoplastic vulcanisates |
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232 | (1) |
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233 | (4) |
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13.5.1 Polyurethane open-cell foam chemistry |
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233 | (1) |
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13.5.2 Open-cell foam geometry |
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234 | (2) |
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13.5.3 Open-cell foam compressive response |
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236 | (1) |
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13.5.4 Closed-cell foam geometry |
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236 | (1) |
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13.5.5 Closed-cell foam compressive response |
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236 | (1) |
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13.6 Snort fibre reinforcement |
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237 | (4) |
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13.6.1 Fibres and their orientation |
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237 | (1) |
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238 | (1) |
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239 | (2) |
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14 Design: materials, shape selection and design for the environment |
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241 | (1) |
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241 | (3) |
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14.2.1 Polymer selection packages |
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241 | (2) |
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14.2.2 Property combinations for materials selection |
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243 | (1) |
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14.2.3 The nearly flat skin of a car door |
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243 | (1) |
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14.2.4 The tubular frame of a car body |
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244 | (1) |
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14.3 Shape selection to optimize stiffness |
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244 | (7) |
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244 | (1) |
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14.3.2 Ribs on injection mouldings |
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244 | (2) |
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246 | (1) |
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14.3.4 Torsion of beams of constant cross section |
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247 | (2) |
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14.3.5 Torsion of beams of non-constant cross section |
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249 | (2) |
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14.4 Product shapes for injection moulding |
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251 | (3) |
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14.4.1 Uniform part thickness |
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251 | (1) |
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14.4.2 Part thickness that decreases away from the gate |
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252 | (1) |
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14.4.3 Product casings that locate components |
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252 | (1) |
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14.4.4 Integral springs and snap joints |
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252 | (1) |
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253 | (1) |
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14.5 Instrument panel case study |
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254 | (2) |
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14.5.1 Instrument panel shape |
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254 | (1) |
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14.5.2 Free headform impact tests |
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255 | (1) |
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256 | (1) |
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14.6 Materials selection, design for the environment and sustainability |
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256 | (3) |
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15 Engineering case studies |
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259 | (1) |
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15.2 Pipes for natural gas distribution |
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260 | (10) |
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260 | (1) |
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15.2.2 The creep rupture test |
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260 | (1) |
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260 | (4) |
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15.2.4 Determining the pipe wall thickness |
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264 | (3) |
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15.2.5 Summary of the design requirements |
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267 | (1) |
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15.2.6 Pipe installation and jointing |
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267 | (3) |
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270 | (4) |
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270 | (1) |
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15.3.2 Biomechanics criteria for head injuries |
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270 | (1) |
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15.3.3 Geometry of the helmet/impacted object interface |
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271 | (1) |
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15.3.4 Design of a helmet liner for a particular impact velocity |
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272 | (1) |
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273 | (1) |
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274 | (1) |
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15.4 Dynamic climbing ropes |
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274 | (6) |
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274 | (1) |
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15.4.2 Rope flexibility in bending |
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275 | (1) |
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15.4.3 Dynamic loads in falls |
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275 | (2) |
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15.4.4 Rope design and manufacture |
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277 | (1) |
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277 | (2) |
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15.4.6 Optimizing the rope tensile strength and Young's modulus |
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279 | (1) |
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15.4.7 Environmental effects on rope durability |
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279 | (1) |
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15.4.8 Rope testing standards |
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280 | (1) |
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15.5 Blood bag case study |
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280 | (6) |
|
|
280 | (1) |
|
15.5.2 Polymer selection for blood bags |
|
|
281 | (1) |
|
15.5.3 Plasticizers in PVC |
|
|
281 | (1) |
|
15.5.4 Translucency, so contents can be seen |
|
|
282 | (1) |
|
15.5.5 Flexibility, to allow blood processing |
|
|
282 | (1) |
|
15.5.6 Heat resistance, to allow sterilization |
|
|
282 | (1) |
|
15.5.7 Tensile strength, to survive centrifugation and handling |
|
|
283 | (1) |
|
|
283 | (1) |
|
15.5.9 Processing and welding |
|
|
284 | (1) |
|
|
285 | (1) |
|
|
285 | (1) |
|
15.6 Ultrahigh molecular weight polyethylene for hip joint implants |
|
|
286 | (7) |
|
|
286 | (1) |
|
15.6.2 Grades of ultrahigh molecular weight polyethylene |
|
|
286 | (1) |
|
15.6.3 Acetabular cup design |
|
|
286 | (1) |
|
15.6.4 Sterilizing the polyethylene before implantation |
|
|
287 | (1) |
|
15.6.5 Ultrahigh molecular weight polyethylene microstructure and mechanical properties |
|
|
288 | (1) |
|
15.6.6 Biomechanics of the patient's activities |
|
|
289 | (1) |
|
15.6.7 Lubrication of the joint in the body |
|
|
289 | (1) |
|
15.6.8 Polyethylene wear mechanisms |
|
|
289 | (1) |
|
15.6.9 Body reactions to ultrahigh molecular weight polyethylene wear debris |
|
|
290 | (1) |
|
15.6.10 Improving the polyethylene wear resistance |
|
|
290 | (2) |
|
|
292 | (1) |
Appendix A Diffusion of heat or impurities |
|
293 | (6) |
Appendix B Polymer melt flow analysis |
|
299 | (12) |
Appendix C Mechanics concepts D Further reading |
|
311 | (4) |
Index |
|
315 | |