Thermoplastic resins usually____________________?
Correct answer: D. Less brittle than thermosetting resins
- A. Remain hard as long as they are hot
- B. Cannot be reclaimed from waste
- C. Permanent setting resins
- D. Less brittle than thermosetting resins
Explanation
Thermoplastics soften on heating and harden on cooling, so they can generally be remoulded and recycled; they are also usually less brittle than thermosetting resins. Permanent setting and inability to reclaim waste describe thermosets instead.
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