Which one IS NOT a characteristic of thermoplastica. resistance to heat won’t meltb.can be moldedc.no cross links between chains      d. commonly used as plastic bottle

engineering thermoplastics

What is basic difference between a thermoplastic and thermoset plastic? Give anexample of both type with the corresponding structure.

Differentiate between thermoplastics, thermosetting plastics and elastomers

List three differences between a thermoset and a thermoplastic.

Plastics (will give) additional characteristics such as fire retardancy to allow them to be used in aircraft parts in the future. Injection-moulded parts (may include) glass or carbon fibres for strength. Plastics (can mould) with a foaming agent which (will reduce) the density and hence the weight of the final component and reduce the material required so reducing the cost. The list of plastics appears to be endless but they fall into two categories, thermoplastics and thermosets. Thermoplastics (can melt and recycle) into new parts. Thermoset plastics are stronger than thermoplastics but (cannot recycle) into new parts and have to be disposed of in other ways.