The Silicone is an inorganic polymer based on a chemical chain of silicon and oxygen and functional organic groups related to the silicon atom. Different materials with varied features can be obtained by modifying the length of siloxane chemical molecule. Silicones available in the market are found in different shapes, from liquid to solid to rubber. They differ according to their application:
Silicone rubber is a polymer made by adding a catalyst for vulcanisation. The rubber can be processed at room temperature as well as at high temperature, in order to give it its final shape, keeping though all the rubber features. Silicone rubber is defined as HTV when vulcanised at high temperature, RTV when vulcanised at room temperature, and LSR when processed in liquid condition; liquid silicone rubber is used by injecting it in moulds together with a catalyst. The duration of the vulcanisation process depends on the catalyst being used.
Features of silicone rubber
Silicone rubber is highly resistant to heat, chemical agents and oxidation. Moreover, it is an excellent electrical insulator. It is also used as a non-stick substance in applications which necessitate high elasticity value and durability.
Uses of silicone rubber
Silicone rubber can be used in different fields such as in:
- Release agents