12 Biodegradable shape-memory polymers and composites
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Samy Madbouly
Abstract
Polymers have recently been making media headlines in various negative ways. To combat the negative view of thosewith no polymer experience, sustainable and biodegradablematerials are constantly being researched. Shape-memory polymers, also known as SMPs, are a type of polymermaterial that is being extensively researched in the polymer industry. These SMPs can exhibit a change in shape because of an external stimulus. SMPs that are biodegradable or biocompatible are used extensively in medical applications. The use of biodegradable SMPs in themedical field has also led to research of thematerial in other applications. The following categories used to describe SMPs are discussed: net points, composition, stimulus, and shape-memory function. The addition of fillers or additives to the polymer matrix makes the SMP a polymer composite. Currently, biodegradable fillers are at the forefront of research because of the demand for sustainability. Common biodegradable fillers or fibers used in polymer composites are discussed in this chapter including Cordenka, hemp, and flax. Some other nonbiodegradable fillers commonly used in polymer composites are evaluated including clay, carbon nanotubes, bioactive glass, and Kevlar. The polymer and filler phase differences will be evaluated in this chapter. The recent advances in biodegradable shape-memory polymers and composites will provide a more positive perspective of the polymer industry and help to attain a more sustainable future.
Abstract
Polymers have recently been making media headlines in various negative ways. To combat the negative view of thosewith no polymer experience, sustainable and biodegradablematerials are constantly being researched. Shape-memory polymers, also known as SMPs, are a type of polymermaterial that is being extensively researched in the polymer industry. These SMPs can exhibit a change in shape because of an external stimulus. SMPs that are biodegradable or biocompatible are used extensively in medical applications. The use of biodegradable SMPs in themedical field has also led to research of thematerial in other applications. The following categories used to describe SMPs are discussed: net points, composition, stimulus, and shape-memory function. The addition of fillers or additives to the polymer matrix makes the SMP a polymer composite. Currently, biodegradable fillers are at the forefront of research because of the demand for sustainability. Common biodegradable fillers or fibers used in polymer composites are discussed in this chapter including Cordenka, hemp, and flax. Some other nonbiodegradable fillers commonly used in polymer composites are evaluated including clay, carbon nanotubes, bioactive glass, and Kevlar. The polymer and filler phase differences will be evaluated in this chapter. The recent advances in biodegradable shape-memory polymers and composites will provide a more positive perspective of the polymer industry and help to attain a more sustainable future.
Chapters in this book
- Frontmatter I
- Contents V
- List of contributing authors XI
- 1 Introduction: biopolymers and biocomposites 1
- 2 Lignin-based polymers 27
- 3 Cellulose-based polymers 65
- 4 Plant oil-based polymers 113
- 5 Bio-based polyurethane aqueous dispersions 155
- 6 Soybean-based polymers and composites 189
- 7 Biodegradable polylactic acid (PLA) 209
- 8 Bio-based polyhydroxyalkanoates blends and composites 235
- 9 Biodegradable polycaprolactone (PCL) based polymer and composites 255
- 10 Biodegradable poly(butylene adipate-coterephthalate) (PBAT) 279
- 11 Bio-based polyamide 309
- 12 Biodegradable shape-memory polymers and composites 331
- 13 Poly(glycerol sebacate) – a revolutionary biopolymer 353
- Index 375
Chapters in this book
- Frontmatter I
- Contents V
- List of contributing authors XI
- 1 Introduction: biopolymers and biocomposites 1
- 2 Lignin-based polymers 27
- 3 Cellulose-based polymers 65
- 4 Plant oil-based polymers 113
- 5 Bio-based polyurethane aqueous dispersions 155
- 6 Soybean-based polymers and composites 189
- 7 Biodegradable polylactic acid (PLA) 209
- 8 Bio-based polyhydroxyalkanoates blends and composites 235
- 9 Biodegradable polycaprolactone (PCL) based polymer and composites 255
- 10 Biodegradable poly(butylene adipate-coterephthalate) (PBAT) 279
- 11 Bio-based polyamide 309
- 12 Biodegradable shape-memory polymers and composites 331
- 13 Poly(glycerol sebacate) – a revolutionary biopolymer 353
- Index 375
