CHAPTER 21 DESIGNING THE HOUSE INTERIOR Type Thermoplastic
Thermoplastic is a soft plastic that has very weak bonds between molecules.
Weak bonds between molecules
Weak bonds between molecules
Properties Examples and uses
• Soft and flexible plastics
• Soften further when heated, harden on cooling
• Acid- and alkali- resistant
• Damaged by solvents
Polystyrene • Containers
• Tumblers • Disposable cutlery
Once the plastic is moulded it can be remoulded and melted several times by heating it. When thermosetting plastic is heated it softens and changes shape.