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State whether the following is true or false.
A thermoplastic can be melted and reshaped repeatedly.

  • A.True
  • B.False
  • C.True only at large scales
  • D.False only at small scales

Answer: A

Its chains are held together only by physical forces, which soften on heating. A thermoset has covalent crosslinks that decompose rather than soften, so it cannot be remoulded. Recycling therefore works only for the thermoplastics.

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