Plastics Flashcards

1
Q

Were are plastics derived from?

A

Minerals, plants, natural gas, oil and coal

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2
Q

What are the properties of a thermoplastic?

A
  • Can be heated, allowing you to remould and reshape thermoplastics into new products
  • The molecules in a thermoplastic are weakly bonded together
  • Thermoplastics can be recycled
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3
Q

What are the advantages of thermoplastics?

A
  • Can be remoulded/reshaped
  • Aesthetically superior finish
  • Recyclable
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4
Q

What are the disadvantages of thermoplastics?

A
  • More expensive

- Can melt if accidentally heated

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5
Q

What are the properties of thermosetting plastics?

A
  • Can’t be reshaped once set
  • The molecules in the plastic are strongly bonded together
  • Can’t be recycled
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6
Q

What are the advantages of thermosetting plastics?

A
  • Cost effective
  • Excellent physical appearance
  • More resistant to high temperatures
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7
Q

What are the disadvantages of thermosetting plastics?

A
  • Can’t be recycled
  • Can’t be reshaped/remoulded
  • Hard to surface finish
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