Question

Thermosetting plastics cannot be used again.why​

Answer 1

Thermosetting plastic molecules, on the other hand, form permanent chemical bonds or cross links with each other once heated. ... Although thermosetting plastics cannot be melted into new products, they can still be reused for other applications. An excellent example is polyurethane foam

Step-by-step explanation:

Answer 2

This is because they have heavily crosslinked polymers and this won't help it to be remoulded after heating