Crear
It is made by mixing sulphur and rubber and heating to 160º
When cooled, they cannot be remoulded by applying heat
They can be remodeled
Heating and cooling process can be repeated many times
Weak molecular chains
Strong-linked chains running in different directions
They can be formed into different shapes as many times as we want
When heated they become soft
They are hard, resistant and very elastic
Made by vulcanisation
Made from compounds derivated from petroleum
Laterally linked chains and folded over themselves
When heated they become soft and can be shaped once