Polymers

Question 1

What are the 3 differnet types of polymers

Answer 1

Thermoplastics
Thermoforming plastics
Elastomers

Question 2

What are thermoplastics

Answer 2

They have plastic memory, can be heated to be softened and returm to its original shape. Can be recycled.

Question 3

What are thermosetting plastics

Answer 3

Does not melt and cannot return to original shape, have very strong close links in their structure. They are perminently formed

Question 4

What are elastomers

Answer 4

Polymers that have a good elasticity, can be distorted under pressure but returns back, long chain molecules

Question 5

Examples of thermoplastics

Answer 5

Nylon, Polypropeline, Low density polyethylene (LDPE), High Density polystyrene (HIPS), Polyvinyl chloride (PVC), High Density Polyethylene (HDPE)

Question 6

Examples of Thermosetting plastics

Answer 6

Polyester resin, Melamine Formaldehyde, Urea formaldehyde, Epoxy resin

Question 7

Examples of Elastomers

Answer 7

Natural RUbber, Buradine Rubber, Silicone, Neoprene

Question 8

What are polymer enhancments and give examples of some

Answer 8

Enhancing polymers better, this is doen by adding additivies into the stock form. Additives range from 0% - 50% in the stock form.
Examples - Lubricants, Pigments, Biodigradable

Question 9

What are Biodigradable polymers

Answer 9

Can be designed to degrade in as little time as a few months - can be caused from light, liquid and oxygen

Question 10

What are the different type of stock forms for Polymers

Answer 10

• Sheet
• Film
• Granules
• Rods
• Foam
• Powder