polymers

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polymers
- what is thermosets
  - these undergo a chemical change resulting in them becoming permanently rigid, i.e. they cannot be reheated and reshaped.
- what is a thermoplastic?
  - these materials can be repeatedly reheated and remouled
- what is a Elastomer?
  - they have good elasticity: i.e. they can be destroyed under pressure but will return to their original shape when removed.
- what are plastics?
- why have plastics become so popular?
  - A domestic kettle has developed from a metal to a polymer with all inhered benefits this material bring colour, light weight, electrical and thermal insulator.
  - more user friendly incorporating all of the ergonomic issues associated with the use of the product,
what is a Elastomer?
- they have good elasticity: i.e. they can be destroyed under pressure but will return to their original shape when removed.
A group of materials made up of long-chain molecules. these long chains consist of hydrogen & carbon atoms in various combinations with other atoms like oxygen.others have been denied from the natural sources and are becoming more popular.
- what are plastics?