types of plastic Flashcards

1
Q

2 types of plastic

A
  1. thermoplastics
  2. thermosetting plastics
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2
Q

thermoplastic

A

*don’t change chemically when heated
*e.g; polyethylene, polystyrene, polyvinyl chloride

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3
Q

thermosetting plastics

A

*shaped only once when heated and solidified(chemical reaction cannot be reversed)
*epoxy, rubber, bakelite, polyester fibreglass

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4
Q

what are plastics produced from

A

crude oil and natural gases

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5
Q

properties of thermoplastics

A

*can be molded over and over again
*easy to work with
*strong and sometimes transparent
*good insulators
*low in tensile strength

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6
Q

thermosetting plastics

A

*difficult to work with
*hard and brittle
*heat resistant
*high in tensile strength

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7
Q

reduce

A

to use less (avoid making waste)

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8
Q

reuse

A

use something over and over again

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9
Q

recycle

A

make new products from old things (don’t throw everything into the trash)

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