Thermoplastics Quiz
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Questions and Answers

What happens to the physical properties of a thermoplastic above its glass transition temperature and below its melting point?

  • They remain the same
  • They change drastically without an associated phase change (correct)
  • They form irreversible chemical bonds
  • They decompose

    • What is a defining characteristic of thermoplastics?

  • They do not melt when heated
  • They form irreversible chemical bonds during the curing process
  • They become pliable at elevated temperature and solidify upon cooling (correct)
  • They fully crystallize below their melting point

    • How do thermoplastics differ from thermosetting polymers?

  • Thermoplastics form irreversible chemical bonds during the curing process, while thermosets do not
  • Thermoplastics may be reshaped when heated, while thermosets do not reform upon cooling (correct)
  • Thermoplastics fully crystallize below their melting point, while thermosets do not
  • Thermoplastics do not melt when heated, while thermosets decompose

    • How do thermoplastics differ from thermosets in terms of melting behavior?

    <p>Thermoplastics melt when heated, while thermosets decompose</p> Signup and view all the answers

    What allows thermoplastics to be used in various polymer processing techniques such as injection molding and extrusion?

    <p>Their ability to become pliable at elevated temperature</p> Signup and view all the answers

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