Emphasizing fundamental concepts that allow a student, novice, or practicing engineer to carry out practical design decisions, Polymer Processing: Principles and Design provides the numerical methods required to solve the equations using a computer and easy–to–use IMSL numerical subroutines, ensuring a solid foundation in the principles underlying the design of polymer processing techniques. Presenting the background required to design processes for thermoplastics, this thoroughly updated second edition adds a Green Engineering component and a CD with numerical subroutines guidance to using Matlab, Mathematica, and Excel to solve processing problems. INDICE: Chapter 1 –– Importance of Process Design 1 1.1 Classification of Polymer Processes 2 1.2 Film Blowing – Case Study 8 1.3 Basics of Polymer Process Design 11 References 13 Design Problem I – Design of a Blow Molding Die 14 Chapter 2 –– Isothermal Flow of Purely Viscous Non–Newtonian Fluids 16 2.1 Viscous Behavior of Polymer Melts 17 2.2 One Dimensional Isothermal Flows 24 2.3 Equations of Change for Isothermal Systems 39 2.4 Useful Approximations 50 2.5 Solution to Design Problem I 56 References 66 Problems 67 Design Problem II – Design of a Parison Die for a Viscoelastic Fluid 80 Chapter 3 –– Viscoelastic Response of Polymeric Fluids 81 3.1 Material Functions for Viscoelastic Fluids 83 3.2 Non–linear Constitutive Equations 95 3.3 Rheometry 119 3.4 Useful Relations for Material Functions 128 3.5 Rheological Measurements and Polymer Processability 133 3.6 Solution to Design Problem II 136 References 142 Problems 145 Design Problem III – Design of a Dry–Spinning System 156 Chapter 4 –– Diffusion and Mass Transfer 158 4.1 Mass Transfer Fundamentals 161 4.2 Diffusivity, Solubility and Permeability in Polymer Systems 181 4.3 Non–Fickian Transport 202 4.4 Mass Transfer Coefficients 204 4.5 Solution to Design Problem III 211 References 216 Problems 221 Design Problem IV –– Casting of Polypropylene Film 233 Chapter 5 –– Nonisothermal Aspects of Polymer Processing 234 5.1 Temperature and Pressure Effects on Rheological Properties 235 5.2 The Energy Equation 240 5.3 Thermal Transport Properties 259 5.4 Heating and Cooling of Non–Deforming Polymeric Materials 264 5.5 Crystallization, Morphology, and Orientation 293 5.6 Solution to Design Problem IV 315 References 320 Problems 324 Design Problem V –– Design of a Multi–layered Extrusion Die 336 Chapter 6 –– Mixing 338 6.1 Description of Mixing 340 6.2 Characterization of the State of Mixture 345 6.3 Striation Thickness and Laminar Mixing 371 6.4 Residence Time and Strain Distributions 402 6.5 Dispersive Mixing 425 6.6 Thermodynamics of Mixing 445 6.7 Chaotic Mixing 446 6.8 Solution to Design Problem V 450 References 458 Problems 465 Design Problem VI –– Coextrusion Blow Molding Die 475 Chapter 7 –– Extrusion Dies 477 7.1 Extrudate Nonuniformities 478 7.2 Viscoelastic Phenomena 480 7.3 Sheet and Film Dies 491 7.4 Annular Dies 497 7.5 Profile Extrusion Dies 502 7.6 Multiple Layer Extrusion 506 7.7 Solution to Design Problem VI 520 References 525 Problems 528 Design Problem VII –– Design of a Devolatilization Section for a Single Screw Extruder 541 Chapter 8 –– Extruders 543 8.1 Description of Extruders 544 8.2 Hopper Design 549 8.3 Plasticating Single Screw Extruders 555 8.4 Twin Screw Extruders 592 8.5 Mixing, Devolatilization, and Reactions in Extruders 602 8.6 Solution to Design Problem VII 625 References 635 Problems 638 Design Problem VIII –– Design of a Film Blowing Process for Garbage Bags 655 Chapter 9 –– Post Die Processing 657 9.1 Fiber Spinning 658 9.2 Film Casting and Stretching 706 9.3 Film Blowing 717 References 745 Problems 752 Design Problem IX –– Design of a Compression Molding Process 760 Chapter 10 –– Molding and Forming 762 10.1 Injection Molding 762 10.2 Micro–Injection Molding 776 10.3 Compression Molding 777 10.4 Thermoforming 786 10.5 Blow Molding 801 10.6 Solution to Design Problem IX 812 References 821 Problems 824 Chapter 11–Proces Engineering for Recycled and Renewable Polymers 11.1 Life Cycle Assessment 11.2 Primary Recycling 11.3 Mechanical or Secondary Recycling 11.4 Tertiary or Feedstock Recycling 11.5 Renewable Polymers and Their Processing Notation 839 Appendix A –– Rheological Data for Several Polymer Melts 870 Appendix B –– Physical Properties and Friction Coefficients for Some Common Polymers in the Bulk State 891 Appendix C –– Thermal Properties of Materials 892 Appendix D – Conversion Tables 968
- ISBN: 978-0-470-93058-8
- Editorial: Wiley–Blackwell
- Encuadernacion: Cartoné
- Páginas: 408
- Fecha Publicación: 14/03/2014
- Nº Volúmenes: 1
- Idioma: Inglés