Guangzhou Longkai Chemical Co., Ltd.
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Categories and Nomenclature of Common Silane Coupling Agents
Author:LongKom  Time:2018-4-2

Coupling agent is an important and widely used treatment agent. It is mainly used as an assistant for polymer composites. The biggest characteristic of the molecular structure of coupling agent is that there are two groups with different chemical properties in the molecule. One is the group of inorganic substances, which is easy to react with the surface of inorganic substances. The other is the group of organic substances, which can react with synthetic resins or other polymers chemically or form hydrogen bonds. Therefore, coupling agents are called "molecular bridges" to improve the interfacial interaction between inorganic and organic materials, thus greatly improving the properties of composites, such as physical properties, electrical properties, thermal properties, optical properties and so on.

Coupling agent was first used as surface treatment agent of glass fiber in glass fiber reinforced plastics. Later, it was widely used in rubber, plastics, coatings, ink, adhesives, wire and cable, resin sand casting, abrasive tools, glass fiber reinforced plastics, artificial quartzite and textiles. In recent years, it has excellent performance in silane treatment solution. In fact, the amount of silane used in the field of metal surface treatment is very small. In the formula of ceramics solution, the content of silane is basically 0.5-2%.

The nomenclature principle of silane coupling agent is usually to use silane as the main name, with the names of substituents or silicon functional groups attached, and the positions of substituents or carbon functional groups in the prescribed order, so as to obtain the chemical formula name of silane coupling agent. In the daily production and operation process, silane coupling agents are often used in various occasions under the commercial name. Due to historical reasons, the silane industry still has different brand names.

There are many kinds of coupling agents, such as silane coupling agent, titanate coupling agent, aluminate coupling agent, bimetallic coupling agent, phosphate coupling agent, borate coupling agent, chromium complex and other coupling agents of higher fatty acids, alcohols and esters. At present, the most widely used coupling agents are silane coupling agent and titanate coupling agent, and the most commonly used in rubber industry are silane, titanate and titanate coupling agent. Aluminate coupling agent. Silane coupling agent is the earliest research and application coupling agent.