In the 1930s, the American Illinois company and Corning established a joint venture, and successively developed production technologies such as glass wool and continuous glass fiber. In 1939, E fiberglass was officially launched. Almost at the same time, epoxy resins and unsaturated polyesters have emerged, laying the material foundation for the development of the glass fiber reinforced plastics industry. In 1945, the main reinforcing material for FRP, chopped strand mat and continuous strand mat, was put into production. In 1952, DuPont Company invented Worland coupling agent to solve the problem of interfacial adhesion between glass fiber and resin in reinforced plastic. In the same year, silane coupling agents were also introduced. Since then, the emergence of a series of coupling agent products has completely improved the performance of glass fiber-resin-based composite materials, paving the way for its application in various fields.

The Second World War played a catalytic role in the development of glass fiber and glass fiber. Many FRP products, such as bullet-proof glass fiber reinforced plastic barrels, radomes and military armor, which were adapted to the needs of war, were developed and put into service for war. In 1945, more than 20 FRP companies in the United States established the American Plastics Industry Association Low Pressure Laminated Materials Industry Branch, which marked the separation of FRP/composites as an independent industrial system from the traditional plastics industry. . During the period from 1958 to 1959, the drawing of the fiberglass kiln was put into production, which was a major technological breakthrough in the traditional glass ball drawing process. The initial production of glass fiber kiln was only 3 tons. Today, more than 95% of the continuous glass fiber in the world has been produced by the pool kiln method. The largest alkali-free glass fiber kiln has reached 150 tons of daily melting glass. The widespread promotion of pool kiln drawing provides the possibility of large-scale, cost-effective production of glass fiber products and guarantees the quality of glass fiber products. The development history of more than half a century proves that the development of glass fiber and glass fiber reinforced plastics industry complement each other and promote each other. In recent years, some high-performance reinforcing fibers, such as high modulus carbon fiber, ceramic fiber, aromatic fiber, high-strength glass fiber, etc., have promoted the development of high-performance, high value-added composite materials, but due to these high performance The high cost of fiber has hampered their large-scale application in the composites industry. More than 95% of the fibers have been used today – resin-based composites still use fiberglass, which will continue for some foreseeable future. .