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GCSE Design and Technology · key term
A plastic that sets permanently during curing and cannot subsequently be softened and remoulded by heating.
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Component 1
Revise: Polymer Origins, Types and PropertiesThermosetting plastics set permanently during their initial forming or curing process. Once cured, they cannot be softened and remoulded by reheating. They therefore cannot be recycled by the same melt-and-remould route as thermoplastics.
A plastic that sets permanently during manufacture and cannot subsequently be softened and remoulded by heating.
Use ‘thermoforming’ or ‘thermoplastic’ for plastics that can be softened and reshaped by reheating. A cured thermosetting plastic cannot be remoulded this way.
Do not assume all thermoforming plastics are flexible or all thermosetting plastics are stronger. Identify the particular material and the forces it must resist.
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A plastic that forms a permanently cross-linked structure when cured and cannot subsequently be softened and reshaped by heating.
A plastic that sets permanently during curing and cannot subsequently be softened and reshaped by heating.
