The coupling agent was first developed by the United Carbide Corporation (UCC) for the development of glass fiber reinforced plastics. As early as the 1940s, when glass fibers were first used as reinforcing materials for organic resins to prepare widely used glass fiber reinforced plastics, it was found that when they were placed in moisture for a long time, their strength would be significantly reduced due to the debonding of resins and hydrophilic glass fibers. , and the water-resistant composite material cannot be obtained.

In view of the fact that the functional group-containing organosilicon material is a "hybrid" of organic materials and inorganic materials that have an amphiphilic relationship with both silica (the main component of glass fiber) and resin, try it as a "binder" or coupling It has become a major idea of ​​scientific and technological workers to improve the adhesion between organic resins and inorganic surfaces to achieve the purpose of improving polymer properties, and has achieved good results in practical applications.

Therefore, from the early 1940s to the 1960s, the coupling agent was produced and developed, and the first generation of silane coupling agents was formed. Coupling agents used in industry can be classified into: silanes, titanates, aluminates, organic chromium complexes, borides, phosphates, zirconates, stannates, etc. They are widely used in the field of polymer materials such as plastics and rubbers.