Question

Write the characteristics of thermosetting polymers.

Answer 1

1. They form a highly crosslinked three-dimensional network during curing.
2. They set irreversibly and cannot be remelted or reshaped.
3. They are hard, rigid and often brittle with high dimensional stability.
4. They resist heat, chemicals and solvents and are insoluble.
5. They have good mechanical strength and electrical insulation.
6. Curing occurs by chemical reactions that form permanent bonds.