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Name 4 different thermo plastics
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Name 4 different thermo-setting plastics
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Give an advantage and disadvantage of using acrylic
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AdvantageAcrylic is available in a wide range of colours and opacitiesDisadvantageAcrylic is quite soft and scratches easily
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Give an advantage and disadvantage of using urea formaldehyde
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AdvantageUrea formaldehyde has a high surface hardnessDisadvantageUrea formaldehyde can give off toxic fumes when it cures (hardens)
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What is a thermo plastic?
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Thermo plastics are plastics that can be heated and shaped multiple times
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What is a thermo-setting plastic?
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Thermo-setting plastics are plastics that can be heated and shaped only once
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What thermo plastic structure is this? |
PVC
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What thermo plastic is commonly used for bin bags? |
Polythene
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What thermo-setting plastic is commonly used for laminating work surfaces? |
Melamine formaldehyde
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