Which material is NOT a thermoset?

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Multiple Choice

Which material is NOT a thermoset?

Explanation:
When a polymer cures into a rigid, three-dimensional network, it becomes a thermoset: it hardens irreversibly and doesn’t melt under heat. Thermoplastics, by contrast, are not crosslinked; they soften, melt, and can be reshaped when heated. Epoxy resin, Bakelite, and many silicone formulations cure to permanent networks, so they are thermosets. Nylon, on the other hand, is a thermoplastic; it can be heated, melted, and reformed without staying permanently set. This is why Nylon is not a thermoset.

When a polymer cures into a rigid, three-dimensional network, it becomes a thermoset: it hardens irreversibly and doesn’t melt under heat. Thermoplastics, by contrast, are not crosslinked; they soften, melt, and can be reshaped when heated.

Epoxy resin, Bakelite, and many silicone formulations cure to permanent networks, so they are thermosets. Nylon, on the other hand, is a thermoplastic; it can be heated, melted, and reformed without staying permanently set. This is why Nylon is not a thermoset.

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