Epoxy resin is used in more and more composite materials, and it expands the space for the improvement of material performance in various industries. At present, there are many glass reinforced plastics made of glass fiber and epoxy resin, which are light and hard, non-conductive, high in mechanical strength, less in recycling and corrosion resistant. It can replace glass and steel to make doors, plates, machine parts and cars, ship shells, etc. Carbon fiber and epoxy resin are combined to form high-strength materials, which can be used in golf clubs, wind turbine blades, helicopter propellers, commutators and other industries.