Epoxy adhesives are supplied as two separate parts. What happens when the resin and the hardener are mixed?
Correct answer D. A cross-linked thermosetting polymer forms
Explanation
The hardener, often an amine, reacts with the epoxide groups of the resin, creating a rigid three-dimensional cross-linked network. This thermosetting adhesive is strong, heat resistant and cannot be softened again.
Answer checked How we write and check questions
Discussion