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Polyurethanes plastics can be made in flexible foams even after belonging to thermosetting polymers.

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in Casting-Forming-Welding II by (119k points)
Polyurethanes plastics can be made in flexible foams even after belonging to thermosetting polymers.

(a) True

(b) False

This question was addressed to me in an international level competition.

This key question is from Processing of Thermosetting Plastics topic in portion Moulding with Polymers of Casting-Forming-Welding II

1 Answer

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by (701k points)
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Best answer
Correct option is (a) True

To elaborate: Polyurethane plastics are belonged to the thermosetting plastics or polymers. Polyurethane is the only polymer that can be formed in both rigid and flexible foams. The flexible polyurethane foam is generally used in the manufacturing of mattresses, carpets and furniture. And the rigid polyurethane foam is used in making of chairs and mirror frames.

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