Composites History
Thermosets are polymers that undergo a chemical reaction during the polymerization.
Thermosetting reaction is not reversible under heat.
Epoxy
- Standard epoxy is based on bisphenol A and epichlorohydrin.
- Others based on phenols and formaldehyde or aromatic amines and aminophenols
- Curing can occur at room temperature with the use of 2 component systems. Curing at elevated temperature with use of one-component.
- Properties include good adhesion to many substrates, low shrinkage, high electrical resistivity, good corrosion resistance, and thermal.
- Processing is achieved without generation of volatiles.