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Extrusion Processing Technology
Food and Non-Food Biomaterials
ISBN/EAN: 9781444338119
Umbreit-Nr.: 5672844
Sprache:
Englisch
Umfang: XI, 518 S.
Format in cm: 2.5 x 25.3 x 19.6
Einband:
gebundenes Buch
Erschienen am 30.05.2014
Auflage: 1/2014
- Zusatztext
- The only up-to-date book on this important technology, Extrusion Processing Technology: Food and Non-Food Biomaterials bridges the gap between the principles of extrusion science and the practical "know how" of operational engineers and technicians. Written by internationally renowned experts with over forty years of experience between them, this valuable reference for food scientists, food engineers, chemical engineers, and students includes coverage of new, greener technologies as well as case studies to illustrate the practical, real-world application of the principles in various settings.
- Autorenportrait
- InhaltsangabeForeword ix Acknowledgements xi 1 Generic Extrusion Processes 1 1.1 A history of extrusion processing technology 1 1.1.1 The introduction of screw extruders 1 1.1.2 The generic extrusion process concept 2 1.1.3 Extrusion technology in the polymer-processing industry 3 1.1.4 Extrusion technology in the food- and feed-processing industry 4 1.1.5 Extrusion technology in the paper-milling industry 8 1.2 Factors driving the development of extrusion processing technology 9 1.2.1 Process productivity 9 1.2.2 Product innovation and functionality 9 1.2.3 Environmentally friendly processing 10 1.3 The industrial and economic importance of extrusion processing technology 10 1.3.1 In the polymer and plastics industry 10 1.3.2 In the food and feed industry 10 1.3.3 In the paper milling industry 11 1.4 Contents and structure of the book 11 References 12 2 Extrusion Equipment 13 2.1 Extruders 13 2.1.1 The kinematics of extruders 13 2.1.2 The screw-barrel assembly 15 2.1.3 The die assembly 20 2.1.4 The central operating cabinet 28 2.2 Extruder screw-barrel configurations 28 2.2.1 Single screw extruders 29 2.2.2 Intermeshing co-rotating twin screw extruders 31 2.2.3 Screwbarrel configuration and wear 33 2.3 Ancillary equipment 39 2.3.1 Upstream ancillary equipment 40 2.3.2 Online ancillary equipment 44 2.3.3 Downstream ancillary equipment 46 References 51 3 Extrusion Engineering 53 3.1 Thermomechanical processing in screw extruders 53 3.1.1 Process configuration of single screw extruders 53 3.1.2 Process configuration of intermeshing co-rotating twin screw extruders 55 3.1.3 Processing specificities 56 3.2 Thermomechanical flow in screw extruders 58 3.2.1 Modeling approaches 58 3.2.2 Solids conveying section 67 3.2.3 Melt conveying section 72 3.2.4 Single screw extrusion versus twin screw extrusion 110 3.3 Thermomechanical extrusion processing: use of numerical methods 115 3.3.1 Single screw extrusion 115 3.3.2 Twin screw extrusion 118 3.3.3 Commercial software 120 References 122 4 The Generic Extrusion Process I: Thermomechanical Plasticating of Polymers and Polymer Melt Forming 125 4.1 The biobased polymers and biobased plastics 126 4.1.1 Definitions 126 4.1.2 Macromolecular characteristics of bio-based polymers 129 4.2 Melting mechanism of polymer materials in screw extruders 138 4.2.1 Melting mechanism in single screw extruders: qualitative description 139 4.2.2 Engineering analysis of polymer melting in single screw extruders 140 4.2.3 Melting mechanism in intermeshing co-rotating twin screw extruders 143 4.2.4 Polymer melting: single screw extrusion versus twin screw extrusion 146 4.3 Physical transitions of bio-based polymers 147 4.3.1 Physical transitions of polymeric materials: generalities 147 4.3.2 Glass and melting transitions: basics 149 4.3.3 Glass and melting transitions of bio-based polymers 151 4.4 Flow properties of bio-based polymer melts 157 4.4.1 Flow behavior: basics 157 4.4.2 Measurement of flow properties of polymer melts 159 4.4.3 Rheological characteristics of bio-based polymer melts 161 4.5 Case studies: emerging applications 162 4.5.1 Melting of polyamide-11 in a single screw extruder: exercise 162 4.5.2 Extrusion processing of biodegradable starch-based loose-fill packaging foams 163 4.5.3 Extrusion compounding of flax fiber-reinforced thermoplastics 165 References 168 5 The Generic Extrusion Process II: Thermomechanical Micromixing and Reactive Extrusion 173 5.1 Reactive extrusion: qualitative description 174 5.1.1 Bulk polymerization 174 5.1.2 Reactive processing of polymers. Reactive plastics reprocessing 175 5.1.3 Reactive extrusion in classic organic chemistry 177 5.1.4 Reactive solid-liquid extrusion-pressing 178 5.1.5 Processing characteristics of reactive extrusion 178 5.2