At present, the wet modification technology is accepted, which requires the silane coupling agent to react with silica in a solution. This technology not only does not need to consume a lot of energy, but also is relatively controllable. Some researchers have deeply explored the effect of silane coupling agent Si69 on the modification of silica, and found that silane coupling agent Si69 can significantly improve the compatibility of silica as a filler with rubber matrix. Some researchers have studied the effect of ionic liquid on the modification of silica, and the results show that the dispersion of silica and the ability to adsorb the matrix are improved by ionic liquid modification. Other researchers have verified the effect of various macromolecular interface modifiers on silica modification by means of macromolecular modification. Of course, some people have modified silica by various modification methods, and compared their modification effects. For example, comparing the modification effects of three different modifiers on silica, it was found that silane coupling Compared with other modifiers, the joint agent has better effect.

The silane coupling agent mainly acts as a bridge in the modification process, which connects the two substances that would not interact with each other. Many studies have shown that when silica modified with silane coupling agent is used as a filler for rubber preparation, the comprehensive properties of the material can be greatly improved. With the development of science and technology, polymer modification has become a new development trend. Because this new composite material combines the advantages of two or more materials, and has very superior bonding properties, and solves the problem of non-uniform expansion coefficients of the two experimental materials under high temperature and high pressure, it is a rubber composite material. The study of mechanical behavior has made a good foundation. As far as silicone rubber is concerned, using nano-calcium carbonate modified silica as a reinforcing agent can not only satisfy the reinforcement effect, but also improve the rheological properties of silicone rubber, thus achieving the effect of improving the processing of molded products.