34. Classification of Plastics
Plastics play a crucial role in the construction and civil engineering industries due to their unique properties, including lightweight design, corrosion resistance, and versatility. They are classified into thermoplastics and thermosetting plastics, each with distinct properties and manufacturing techniques. Advances in fiber-reinforced plastics (FRPs) and sustainable practices highlight the importance of plastics in modern civil engineering applications, underscoring their structural aid and environmental considerations.
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What we have learnt
- Plastics are classified into thermoplastics and thermosetting plastics, each with unique properties.
- Understanding mechanical, thermal, chemical, and electrical properties of plastics is essential for construction applications.
- Fiber-reinforced plastics offer enhanced strength-to-weight ratios and various applications in civil engineering.
Key Concepts
- -- Thermoplastics
- Plastics that soften on heating and harden on cooling, allowing reshaping multiple times.
- -- Thermosetting Plastics
- Plastics that undergo permanent chemical changes when heated and cannot be remolded after setting.
- -- FiberReinforced Plastics (FRP)
- Composite materials made of a polymer matrix reinforced with fibers, providing high strength and durability.
- -- Polymerization Methods
- Processes used to synthesize plastics, including addition and condensation polymerization.
- -- Sustainability in Plastics
- The use of recycled materials and eco-friendly practices in the production and application of plastics.
- -- Smart Plastics
- Plastics integrated with sensors or materials that react to environmental changes, enhancing functionality.
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