Which of the following is a thermoset material?

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Multiple Choice

Which of the following is a thermoset material?

Explanation:
Thermoset materials form a permanent, crosslinked network when they cure. This chemical bonding locks the structure in place so it cannot be melted and remolded afterward. Epoxy resin cures with a hardener to create this dense, three‑dimensional network, so once it’s set, it behaves as a thermoset and won’t melt or soften under heat. In contrast, nylon, acrylic, and polyethylene are thermoplastics. They soften and can be melted and reshaped with heat, because they don’t develop the same permanent crosslinking that thermosets have.

Thermoset materials form a permanent, crosslinked network when they cure. This chemical bonding locks the structure in place so it cannot be melted and remolded afterward. Epoxy resin cures with a hardener to create this dense, three‑dimensional network, so once it’s set, it behaves as a thermoset and won’t melt or soften under heat.

In contrast, nylon, acrylic, and polyethylene are thermoplastics. They soften and can be melted and reshaped with heat, because they don’t develop the same permanent crosslinking that thermosets have.

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