Unit 2- Uses Of Plastics And Synthetic Fibres Flashcards
(11 cards)
What are most plastics and synthetic fibres made from?
Chemicals derived from oil
What are synthetic materials made by?
The chemical industry
Name 7 plastics
Polythene Polystyrene Perspex PVC nylon Kevlar Bipol
Name a property of Kevlar
It’s very strong
Name a property of polyethenol
It readily dissolves in water
Name 2 polyesters
Terylene
Nylon
Name a property of bipol and what it is used for
This polyester is biodegradable and is used for carrier bags and other disposable items
Do most plastics have a high or low density and what effect does this have?
Low density and they are very durable therefore they cause environmental problems
What toxic fumes can be given off as a result of burning or smouldering plastics?
Carbon monoxide
What does thermoplastic mean?
A plastic which can be reshaped on heating
What is a thermosetting plastic?
Cannot be reshaped on heating
