Polymer composites are materials in which the matrix polymer is reinforced with organic/inorganic fillers of a definite size and shape, leading to enhanced performance of the resultant composite. These materials find a wide number of applications in such diverse fields as geotextiles, building, electronics, medical, packaging, and automobiles.
This first systematic reference on the topic emphasizes the characteristics and dimension of this reinforcement. The authors are leading researchers in the field from academia, government, industry, as well as private research institutions across the globe, and adopt a practical approach here, covering such aspects as the preparation, characterization, properties and theory of polymer composites.
The book begins by discussing the state of the art, new challenges, and opportunities of various polymer composite systems. Interfacial characterization of the composites is discussed in detail, as is the macro- and micromechanics of the composites. Structure-property relationships in various composite systems are explained with the help of theoretical models, while processing techniques for various macro- to nanocomposite systems and the influence of processing parameters on the properties of the composite are reviewed in detail. The characterization of microstructure, elastic, viscoelastic, static and dynamic mechanical, thermal, tribological, rheological, optical, electrical and barrier properties are highlighted, as well as their myriad applications.
Divided into three volumes: Vol. 1. Macro- and Microcomposites; Vol. 2. Nanocomposites; and Vol. 3. Biocomposites.
Table des matières
The Editors XIX
List of Contributors XXI
1 Advances in Polymer Composites: Biocomposites –State of the Art, New Challenges, and Opportunities 1
Koichi Goda, Meyyarappallil Sadasivan Sreekala, Sant Kumar Malhotra, Kuruvilla Joseph, and Sabu Thomas
1.1 Introduction 1
1.2 Development of Biocomposite Engineering 3
1.3 Classification of Biocomposites 5
References 8
2 Synthesis, Structure, and Properties of Biopolymers (Natural and Synthetic) 11
Raju Francis, Soumya Sasikumar, and Geethy P. Gopalan
2.1 Introduction 11
2.2 Classification 13
2.3 Natural Biopolymers 13
2.3.1 Proteins 14
2.3.2 Polysaccharides 27
2.3.3 Polysaccharides from Marine Sources 34
2.3.4 Low Molecular Weight Biopolymers 39
2.3.5 Microbial Synthesized Biopolymers 42
2.3.6 Natural Poly(Amino Acids) 46
2.3.7 Nucleic Acids 50
2.4 Synthetic Biopolymers 54
2.4.1 Poly(Glycolide) PGA or Poly(Glycolic Acid) 55
2.4.2 Poly(Lactic Acid) (PLA) 55
2.4.3 Poly(Lactide-co-Glycolide) 56
2.4.4 Polycaprolactone (PCL) 57
2.4.5 Poly(p-Dioxanone) (PDO) 57
2.4.6 Poly(Trimethylene Carbonate) (PTMC) 58
2.4.7 Poly-β-Hydroxybutyrate (PHB) 58
2.4.8 Poly(Glycerol Sebacic Acid) (PGS) 58
2.4.9 Poly(Propylene Fumarate) (PPF) 59
2.4.10 Poly(Anhydrides) (PAs) 60
2.4.11 Poly(Orthoesters) (POEs) 60
2.4.12 Poly(Phosphazene) 61
2.4.13 Poly(Vinyl Alcohol) (PVA) 62
2.4.14 Poly(Hydroxyalkanoates) (PHAs) 63
2.4.15 Poly(Ester Amides) (PEAs) 63
2.5 Need for Biopolymers 64
2.6 Exceptional Properties of Biopolymers 65
2.7 Biomedical Polymers 65
2.7.1 Chitosan 66
2.7.2 Poly(Lactic Acid) (PLA) 67
2.7.3 Collagen 67
2.7.4 Polycaprolactone (PCL) 68
2.7.5 Poly(2-Hydroxyethyl Methacrylate) (PHEMA) 68
2.7.6 Carbohydrate-Based Vaccines 69
2.7.7 Chitin 69
2.7.8 Albumin 69
2.7.9 Fibrin 70
2.7.10 Hyaluronic Acid (HA) 70
2.7.11 Chondroitin Sulfate (CS) 70
2.7.12 Alginic Acid 70
2.7.13 Poly(Anhydrides) 70
2.8 Composite Material 71
2.9 Blends 71
2.10 Applications of Biopolymers 72
2.10.1 Medical Applications 72
2.10.2 Agricultural Applications 76
2.10.3 Packaging 77
2.11 Partially Biodegradable Packaging Materials 80
2.12 Nonbiodegradable Biopolymers 80
2.12.1 Poly(Thioesters) 80
2.12.1.1 Poly(3-Mercaptopropionate) (Poly(3MP)) 81
2.13 Conversion of Nonbiodegradable to Biodegradable Polymers 82
2.14 Current Research Areas in Biopolymers and Bioplastics 82
2.15 General Findings and Future Prospects 83
Acknowledgments 83
Abbreviations 84
References 84
3 Preparation, Microstructure, and Properties of Biofibers 109
Takashi Nishino
3.1 Introduction 109
3.2 Structure of Natural Plant Fibers 110
3.2.1 Microstructure 110
3.2.2 Crystal Structure 114
3.3 Ultimate Properties of Natural Fibers 117
3.3.1 Elastic Modulus 117
3.3.2 Tensile Strength 120
3.4 Mechanical and Thermal Properties of Cellulose Microfibrils and Macrofibrils 121
3.5 All-Cellulose Composites and Nanocomposites 126
3.6 Conclusions 129
References 129
4 Surface Treatment and Characterization of Natural Fibers: Effects on the Properties of Biocomposites 133
Donghwan Cho, Hyun-Joong Kim, and Lawrence T. Drzal
4.1 Introduction 133
4.2 Why Is Surface Treatment of Natural Fibers Important in Biocomposites? 134
4.3 What Are the Surface Treatment Methods of Natural Fibers? 137
4.3.1 Chemical Treatment Methods 138
4.3.2 Physical Treatment Methods 145
4.4 How Does the Surface Treatment Influence the Properties of Biocomposites? 149
4.4.1 Chemical Changes of Natural Fibers 149
4.4.2 Morphological and Structural Changes of Natural Fibers 150
4.4.3 Mechanical Changes of Natural Fibers 151
4.4.4 Interfacial Properties of Biocomposites 153
4.4.5 Mechanical Properties of Biocomposites 157
4.4.6 Impact Properties of Biocomposites 160
4.4.7 Dynamic Mechanical Properties of Biocomposites 161
4.4.8 Thermal Properties of Biocomposites 164
4.4.9 Water Absorption Behavior of Biocomposites 166
4.5 Concluding Remarks 168
References 169
5 Manufacturing and Processing Methods of Biocomposites 179
5.1 Processing Technology of Natural Fiber-Reinforced Thermoplastic Composite 179
Tatsuya Tanaka
5.1.1 Background 179
5.1.2 NF- Reinforced PLA Resin Composite Material 181
5.1.3 Pellet Production Technology of Continuation Fiber-Reinforced Thermoplastic Resin Composite Material 181
5.1.4 Pellet Manufacturing Technology of the Continuous Natural Fiber–Reinforced Thermoplastic Resin Composite Material 183
5.1.5 Pellet Manufacturing Technology of the Distributed Type Natural Fiber–Reinforced Thermoplastic Resin Composites 189
5.1.6 Future Outlook 197
5.2 Processing Technology of Wood Plastic Composite (WPC) 197
Hirokazu Ito
5.2.1 Raw Materials 198
5.2.2 Compounding Process 203
5.2.3 Molding Process 207
5.2.4 The Future Outlook for WPC in Industry 209
References 209
6 Biofiber-Reinforced Thermoset Composites 213
Masatoshi Kubouchi, Terence P. Tumolva, and Yoshinobu Shimamura
6.1 Introduction 213
6.2 Materials and Fabrication Techniques 213
6.2.1 Thermosetting Resins 213
6.2.2 Natural Fibers 215
6.2.3 Fabrication Techniques 217
6.3 Biofiber-Reinforced Synthetic Thermoset Composites 220
6.3.1 Polyester-Based Composites 220
6.3.2 Epoxy-Based Composites 222
6.3.3 Vinyl Ester-Based Composites 223
6.3.4 Phenolic Resin-Based Composites 224
6.3.5 Other Thermoset-Based Composites 225
6.4 Biofiber-Reinforced Biosynthetic Thermoset Composites 225
6.4.1 Lignin-Based Composites 225
6.4.2 Protein-Based Composites 226
6.4.3 Tannin-Based Composites 227
6.4.4 Triglyceride-Based Composites 228
6.4.5 Other Thermoset-Based Composites 229
6.5 End-of-Life Treatment of NFR Thermoset Composites 231
6.5.1 Recycling as Composite Fillers 231
6.5.2 Pyrolysis 232
6.5.3 Chemical Recycling 232
6.5.4 Energy Recovery 233
6.6 Conclusions 233
References 234
7 Biofiber-Reinforced Thermoplastic Composites 239
Susheel Kalia, Balbir Singh Kaith, Inderjeet Kaur, and James Njuguna
7.1 Introduction 239
7.2 Source of Biofibers 240
7.3 Types of Biofibers 241
7.3.1 Annual Biofibers 241
7.3.2 Perennial Biofibers (Wood Fibers) 245
7.4 Advantages of Biofibers 248
7.5 Disadvantages of Biofibers 248
7.6 Graft Copolymerization of Biofibers 250
7.7 Surface Modifications of Biofibers Using Bacterial Cellulose 252
7.8 Applications of Biofibers as Reinforcement 255
7.8.1 Composite Boards 256
7.8.2 Biofiber-Reinforced Thermoplastic Composites 259
7.9 Biofiber Graft Copolymers Reinforced Thermoplastic Composites 271
7.10 Bacterial Cellulose and Bacterial Cellulose-Coated, Biofiber-Reinforced, Thermoplastic Composites 274
7.11 Applications of Biofiber-Reinforced Thermoplastic Composites 277
7.12 Conclusions 278
References 279
8 Biofiber-Reinforced Natural Rubber Composites 289
Parambath Madhom Sreekumar, Preetha Gopalakrishnan, and Jean Marc Saiter
8.1 Introduction 289
8.2 Natural Rubber (NR) 289
8.3 Biofibers 290
8.4 Processing 292
8.5 Biofiber-Reinforced Rubber Composites 292
8.5.1 Cure Characteristics 293
8.5.2 Mechanical Properties 294
8.5.3 Viscoelastic Properties 300
8.5.4 Diffusion and Swelling Properties 302
8.5.5 Dielectric Properties 304
8.5.6 Rheological and Aging Characteristics 305
8.6 Approaches to Improve Fiber–Matrix Adhesion 307
8.6.1 Mercerization 307
8.6.2 Benzoylation 308
8.6.3 Coupling Agents 308
8.6.4 Bonding Agents 309
8.7 Applications 312
8.8 Conclusions 312
References 312
9 Improvement of Interfacial Adhesion in Bamboo Polymer Composite Enhanced with Microfibrillated Cellulose 317
Kazuya Okubo and Toru Fujii
9.1 Introduction 317
9.2 Materials 318
9.2.1 Matrix 318
9.2.2 Bamboo Fibers 318
9.2.3 Microfibrillated cellulose (MFC) 319
9.3 Experiments 320
9.3.1 Fabrication Procedure of Developed Composite Using PLA, BF, and MFC (PLA/BF/MFC Composite) 320
9.3.2 Three-Point Bending Test 321
9.3.3 Microdrop Test 321
9.3.4 Fracture Toughness Test 321
9.3.5 Bamboo Fiber Embedded Test 322
9.4 Results and Discussion 322
9.4.1 Internal State of PLA/BF/MFC Composite 322
9.4.2 Bending Strength of PLA/BF/MFC Composite 322
9.4.3 Fracture Toughness of PLA/BF/MFC Composite 325
9.4.4 Crack Propagation Behavior 325
9.5 Conclusion 328
Acknowledgments 328
References 328
10 Textile Biocomposites 331
10.1 Elastic Properties of Twisted Yarn Biocomposites 331
Koichi Goda and Rie Nakamura
10.1.1 Introduction 331
10.1.2 Classical Theories of Yarn Elastic Modulus 332
10.1.3 Orthotropic Theory for Twisted Yarn-Reinforced Composites 335
10.1.4 Conclusion 344
10.2 Fabrication Process for Textile Biocomposites 345
Asami Nakai and Louis Laberge Lebel
10.2.1 Introduction 345
10.2.2 Intermediate Materials for Continuous Natural Fiber-Reinforced Thermoplastic Composites 345
10.2.3 Braid-Trusion of Jute/Polylactic Acid Composites 349
10.2.4 Conclusion 358
References 358
11 Bionanocomposites 361
Eliton S. Medeiros, Amélia S.F. Santos, Alain Dufresne, William J. Orts, and Luiz H. C. Mattoso
11.1 Introduction 361
11.2 Bionanocomposites 362
11.2.1 Bionanocomposite Classification 362
11.2.2 Reinforcements Used in Bionanocomposites 364
11.2.3 Matrices for Bionanocomposites 369
11.2.4 Mixing, Processing, and Characterization of Bionanocomposites 380
11.2.5 Polysaccharide Bionanocomposites 383
11.2.6 Protein Bionanocomposites 391
11.2.7 Bionanocomposites Using Biodegradable Polymers from Microorganisms and Biotechnology 399
11.2.8 Bionanocomposites Using Biodegradable Polymers from Petrochemical Products 406
11.2.9 Other Biodegradable Polymers 416
11.3 Final Remarks 419
References 420
12 Fully Biodegradable ‘‘Green’’ Composites 431
Rie Nakamura and Anil N. Netravali
12.1 Introduction 431
12.2 Soy Protein-Based Green Composites 434
12.2.1 Introduction 434
12.2.2 Fiber/Soy Protein Interfacial Properties 435
12.2.3 Effect of Soy Protein Modification on the Properties of Resins and Composites 437
12.3 Starch-Based Green Composites 441
12.3.1 Introduction 441
12.3.2 Fiber Treatments 442
12.3.3 Cellulose Nanofiber-Reinforced ‘‘Green’’ Composites 446
12.3.4 Evaluation of Mechanical Properties of Green Composites 447
12.4 Biodegradation of ‘‘Green’’ Composites 450
12.4.1 Biodegradation of PHBV 451
12.4.2 Effect of Soy Protein Modification on Its Biodegradation 455
12.4.3 Biodegradation of Starch-Based Green Composites 458
References 460
13 Applications and Future Scope of ‘‘Green’’ Composites 465
Hyun-Joong Kim, Hyun-Ji Lee, Taek-Jun Chung, Hyeok-Jin Kwon, Donghwan Cho, and William Tai Yin Tze
13.1 Introduction 465
13.1.1 Biodegradable Plastics versus Traditional Plastics 466
13.2 Applications of Biocomposites (Products/Applications/Market) 467
13.2.1 Survey of Technical Applications of Natural Fiber Composites 467
13.2.2 Automotive Applications 469
13.2.3 Structural Applications 472
13.3 Future Scope 476
13.3.1 Choice of Materials and Processing Methods 477
13.4 Conclusion 478
References 479
14 Biomedical Polymer Composites and Applications 483
Dionysis E. Mouzakis
14.1 Introduction 483
14.2 Biocompatibility Issues 485
14.3 Natural Matrix Based Polymer Composites 488
14.3.1 Silk Biocomposites 488
14.3.2 Chitin and Chitosan as Matrices 489
14.3.3 Mammal Protein-Based Biocomposites 490
14.3.4 Hyaluronic Acid Composites 491
14.3.5 Other Natural Polymer Matrices 493
14.4 Synthetic Polymer Matrix Biomedical Composites 494
14.4.1 Biodegradable Polymer Matrices 495
14.4.2 Synthetic Polymer Composites 499
14.5 Smart Polymers and Biocomposites 502
14.6 Polymer-Nanosystems and Nanocomposites in Medicine 504
14.7 Conclusions 506
14.8 Outlook 507
References 507
15 Environmental Effects, Biodegradation, and Life Cycle Analysis of Fully Biodegradable ‘‘Green’’ Composites 515
Ajalesh Balachandran Nair, Palanisamy Sivasubramanian, Preetha Balakrishnan, Kurungattu Arjunan Nair Ajith Kumar, and Meyyarappallil Sadasivan Sreekala
15.1 Introduction 515
15.2 Environmental Aspects 518
15.3 Environmental Impacts of Green Composite Materials 520
15.4 Choice of Impact Categories 521
15.4.1 Global Warming 521
15.4.2 Acidification 521
15.4.3 Abiotic Depletion 521
15.5 Environmental Impact of Polylactide 522
15.6 Environmental Effect of Polyvinyl Alcohol (PVA) 523
15.7 Potential Positive Environmental Impacts 526
15.7.1 Composting 526
15.7.2 Landfill Degradation 526
15.7.3 Energy Use 526
15.8 Potential Negative Environmental Impacts 526
15.8.1 Pollution of Aquatic Environments 527
15.8.2 Litter 528
15.9 Biodegradation 529
15.9.1 Biodegradability Test 530
15.10 Advantages of Green Composites over Traditional Composites 532
15.11 Disadvantages of Green Composites 532
15.12 Application and End-Uses 532
15.12.1 Automobiles 533
15.12.2 Aircrafts and Ships 533
15.12.3 Mobile Phones 533
15.12.4 Decorative Purposes 534
15.12.5 Uses 534
15.13 Biodegradation of Polyvinyl Alcohol (PVA) under Different Environmental Conditions 534
15.13.1 Biodegradation of Polyvinyl Alcohol under Composting Conditions 535
15.13.2 Biodegradation of Polyvinyl Alcohol in Soil Environment 535
15.13.3 Anaerobic Biodegradation of Polyvinyl Alcohol in Aqueous Environments 536
15.14 Biodegradation of Polylactic Acid 536
15.15 Biodegradation of Polylactic Acid and Its Composites 537
15.16 Biodegradation of Cellulose 539
15.17 Cellulose Fiber-Reinforced Starch Biocomposites 539
15.18 Life Cycle Assessment (LCA) 541
15.18.1 Methods 542
15.18.2 Green Design Metrics 543
15.18.3 Decision Matrix 545
15.19 Life Cycle Assessment Results 546
15.20 Green Principles Assessment Results 548
15.21 Comparison 548
15.22 Life Cycle Inventory Analysis of Green Composites 551
15.22.1 Fiber Composites 551
15.22.2 Natural Fibers 552
15.22.3 Life Cycle Analysis of Polylactide (PLA) 552
15.23 Life Cycle Analysis of Poly(hydroxybutyrate) 556
15.24 Life Cycle Analysis of Cellulose Fibers 556
15.25 Conclusions 558
Abbreviations 559
References 561
Index 569
A propos de l’auteur
Sabu Thomas is a Professor of Polymer Science and Engineering at Mahatma Gandhi University (India). He is a Fellow of the Royal Society of Chemistry and a Fellow of the New York Academy of Sciences. Thomas has published over 300 papers in peer reviewed journals on his polymer composite, membrane separation, polymer blend and alloy, and polymer recycling research and has edited three books.
Kuruvilla Joseph is a Reader at St. Berchmans’ College (India). He has held a number of visiting research fellowships and has published ca. 50 papers on polymer composites and blends.
S. K. Malhotra is Chief Design Engineer and Head of the Composites Technology Centre at the Indian Institute of Technology, Madras. He has published over 100 journal and proceedings papers on polymer and alumina-zirconia composites.
Koichi Goda is a Professor of Mechanical Engineering at Yamaguchi University. His major scientific fields of interest are reliability and engineering analysis of composite materials and development and evaluation of environmentally friendly and other advanced composite materials.
M. S. Sreekala is a Senior Research Associate in the Department of Polymer Science and Rubber Technology at Cochin University of Science and Technology (India). She has published over 30 papers on polymer composites (including biodegradable and green composites) in peer reviewed journals and has held a number of Research Fellowships, including those from the Humboldt Foundation and Japan Society for Promotion of Science.
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