Page 112 - Module DMV20173

6.0 POLYMER PROCESSING

6.1 POLYMER MATERIALS

1. Polymers are materials which consist of very long chain like molecules.
2. There are two major classes of plastics:

i. Thermoplastics
ii. Thermosets

3. Examples of thermo-plastic material are:

i. Cellulose acetate
ii. Nylon
iii. Polyethylene
iv. Polystyrene
v. Polypropylene

vi. Polyvinyl chloride
vii. Polycarbonate

4. Example of thermosetting material are:

i. Phenolics
ii. Melamine formaldhyde
iii. Formaldehyde epoxies
iv. Urea

v. Thermoset
vi. Polyester

BPLK 144 DME 1083