[Structural Features] The structural formula of silane coupling agent is Y-R-Si-X3, where Y represents an organic functional group, R represents an alkyl group, and X represents a group that can be hydrolyzed. Y mainly reacts with organic polymers, while the hydrolyzable group X mainly controls the hydrolysis rate. Under the same hydrolysis conditions, the hydrolysis rate of large functional groups is slow; In acidic environments, hydrolysis of longer alkyl groups is slower. For example, the hydrolyzable alkoxy group is usually ethoxy or methoxy. Under the same hydrolysis conditions, the hydrolysis rate of trimethoxysilane is faster than that of triethoxysilane. The hydrolysis rate of α - methacryloyloxy-methyl triethoxysilane in acidic solution is 20 times that of γ - methacryloyloxy-pr

According to statistics, currently in China, each car uses about 20kg of rubber, medium-sized cars use about 16kg, and heavy-duty cars use about 22kg. It is expected that by 2020, the total demand for various types of adhesives and sealants in China's automotive industry will reach 300000 tons. This article systematically introduces the bonding parts and characteristics of automobile body, operating system, power system, and maintenance, as well as the types and main properties of adhesives used in automobiles. It also elaborates on the development status of adhesive varieties in recent years. According to statistics, the adhesive used for car interiors in China currently weighs about 20kg per sedan, 16kg per medium-sized car, and 22kg per heavy-duty car. It is expected that by 2020, the t