Industry news: In most cases, continuous glass fiber is used to reinforce thermosetting matrix, and chopped glass fiber is used to reinforce thermoplastic matrix. The main advantages of glass fiber are: low cost, high tensile strength, good chemical resistance and excellent insulation properties. There are two types of glass fiber commonly used in the composite material industry, namely E-glass fiber and S-glass fiber. The cost of E-glass fiber in commercial reinforced materials is low, and the application of its composite materials is mainly distributed in the fields of shipping, transportation, communications, electrical appliances, chemical industry and infrastructure.
Through the experiment and characterization of glass fiber reinforced bisphenol A epoxy resin composite materials, the effect of fiber content on the dynamic mechanical properties and thermal properties of the composite materials was studied. Studies have shown that the storage modulus increases with the increase of the glass fiber content, which is due to the strengthening effect of the rigid glass fiber; the glass transition temperature of the composite material to the high temperature region depends on the adhesion between the fibers and the fiber content. Increase; as the fiber content increases, the thermal stability of the composite also increases.
Throughout the recent history of polymers, epoxy resins have won an important position, which is attributed to its wide application in many fields. After curing, the epoxy resin forms a three-dimensional, insoluble and infusible thermosetting structure with excellent mechanical properties, thermal properties, and chemical resistance. At the same time, due to low curing shrinkage performance and process performance under various conditions, fiber-reinforced epoxy resin-based composite materials are widely used in aviation, missiles and space structures. Glass fiber, carbon fiber, boron fiber and organic fiber can be used as the reinforcement material of polymer matrix composite material, which can be used to make structural parts or non-structural parts.