Plastics Flashcards

1
Q

What are the two families of plastics called?

A

Thermoplastics
Thermosetting plastics

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2
Q

What are the properties of Thermosetting plastics?

A

They melt the first time they are heated but once cooled it sets and remains hard even if reheated.

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3
Q

What are the properties of
Thermoplastics?

A

Can be softened by heating even when they have been heated before. They will always set again when cooled.

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4
Q

Name two thermosetting plastics

A

Polyester resin
Epoxy resin

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5
Q

Name two thermoplastics

A

Acrylic
Polystyrene

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