Question

Which one of these are incorrect for thermosetting polymers?

• A. They are cross linked.
• B. They are not reusable after heating.
• C. On heating undergo extensive cross linking in moulds and become infusible.
• D. They are reusable.

Answer 1

Answer: (D)

They are reusable.

In case of thermosetting polymers, on heating it undergoes extensive cross linking in moulds and again becomes infusible. These cannot be reused. Hence option D must be incorrect statement.