Advances in Plastics Recycling, v.1 [Minkštas viršelis]

Introduction ix Present State of Polyurethane Recycling in Europe 1(32) E. Weigand W. Raßhofer Introduction 1(2) Terminology and Methods for Recycling and Recovery 3(7) Status of PUR Recycling in Western Europe (1995) 10(21) Conclusions 31(1) Acknowledgements 31(1) References 31(2) Processing Overview of Bonded Polyurethane Foam 33(10) Trent A. Shidaker Brian Fogg Introduction 33(1) Recycled Foam Industry 34(1) Bonded Foam Manufacturing Method 35(4) Bonded Foam Physical Property Considerations 39(1) Industry Trends 40(1) References 40(3) Mechanical Recycling of Polyurethane Scrap 43(78) Fyodor Shutov Introduction 43(2) Methods of Size Reduction of PUR Scrap 45(17) Recycled PUR Parts Produced by Rebonding with Binder 62(12) Recycled PUR Parts Produced by Compression Molding without Binder 74(8) Recycled PUR Parts Produced by Filling with Pulverized PUR Scrap 82(29) Economics and Marketing 111(4) References 115(6) Ecostream™: A Technology Beyond Recycling 121(46) Paul Farkas Introduction 121(1) Background Information 121(2) ``Prior Art 123(7) Ecostream™: A New Concept 130(2) About the Experimental Materials, Techniques and Chemical Systems 132(4) Producing Automotive Seat Cushions via Ecostream™ 136(27) Ecostream™---Going Beyond Recycling 163(1) 1997 and Beyond 163(1) Acknowledgment 164(1) References 164(3) Recycling of Flexible Polyurethane Foam 167(56) Herman Stone Introduction 167(1) History of the Industry 167(2) Historic Approaches to Recycling 169(3) Current Approaches to Scrap Foam Utilization 172(1) Rebond---Current Status 173(3) Finely Ground Foam as Filler in Prime Foam 176(2) Current Status of Technology for Recycling of Finely Ground Flexible Polyurethane Foam 178(1) Comminuting Processes 178(1) Cryogenic Grinding 179(2) Mechanical Grinding 181(2) Other Processes 183(1) Properties of Powdered Foam 183(2) Problems of Non-Polyurethane Impurities 185(1) Economic Considerations 185(1) Powder Dispersion Processes 185(1) Preparation of Slurry in Polyol 186(1) Specific Gravity 187(1) Viscosity 187(3) Settling 190(1) In-Process Blending of Powder into Polyol 190(2) Foam Processing 192(3) Physical Properties 195(16) Summary of Physical Properties 211(1) Summary of Full Scale Performance 212(1) Physical Properties 212(1) Other Properties 213(1) Antibacterial Performance 213(2) General Conclusions 215(1) Economics 215(4) Conclusions 219(1) Future Developments 219(1) References 220(3) General Purpose Adhesives Prepared from Chemically Recycled Waste Rigid Polyurethane Foams 223(18) F. Hayashi M. Omoto M. Ozeki Y. Imai Introduction 223(1) Decomposition of Rigid Polyurethane Foams 224(1) Preparation of Epoxy Adhesives 225(1) Measurements 225(2) Results and Discussion 227(9) Application of Recycled Products from Polyurethane Foam for Curing of Epoxy Adhesive Systems 236(4) Conclusions 240(1) References 240(1) Utilization of Isocyanate-Based Binders in Recycling of Scrap Automotive Headliners 241 Vahid Sendijarevic Qavi Anjum Daniel Klempner Kurt C. Frisch Girma M. Gebreselassie Harold Wolf Introduction 241(2) Isocyanate-Based Binders 243(2) Rear-Seat-to-Back-Window Trim Panel Prototypes 245(4) Conclusions 249(1) Acknowledgments 249(1) References 249