Uses of plastics

There are many types of plastics. For example:

Name Used for
Polythene Plastic bags and bottles, dustbins, ecling filmf
Polystyrene Plastic cups, fats-food cartons, packaging foam
Nylon Rope, bristle for brushes, tights, carpet
Melamine eUnbreakablef dishes and mugs, ashtrays
Urea-formaldehyde Electric plugs and switches
Phenol-formaldehyde Door handles, saucepan handles


Plastics have these properties:

1) They are all carbon compounds.
2) Their molecules are long chains of atoms, made by joining lots of small molecules together. So they are called polymers. Poly means many. They are produced by a reaction called polymerization.
3) Because they are molecular compounds, they do not conduct electricity. They are electrical and thermal insulators.
4) They ...