Silicone material refers to a general term for high molecular polymers containing Si-C bonds, which are not found in nature.

One of the most industrially valuable and main features in organosilicon chemistry is the structure and properties of the polysiloxane series. Polysiloxanes (silicone resins) composed of silicon-oxygen bonds (-Si-O-Si-) as the skeleton are semi-organic and semi-inorganic polymer compounds, which have both the characteristics of organic polymers and inorganic polymers. These properties are unmatched by other polymer materials, and have an irreplaceable position in many fields. Its application range has gradually penetrated into various fields of people's daily life from military industry, national defense, and cutting-edge technology.

According to different forms, silicon-containing polymers can be divided into four categories: silicone oil, silicone rubber, silicone resin, and silane coupling agent. Silicon-containing polymers used in coatings are mainly silicone resins and silicone-modified resins. Silicone rubber can be made into room temperature vulcanized or heat cured coatings. Silicone oil is mainly used as a coating additive, and it is one of the most effective defoamers in coatings, especially solvent-based coatings. Polyether modified silicone oil can also be used as a water-based defoamer with ideal effect; silicone oil can also improve coatings It can improve the leveling property and prevent the blooming phenomenon caused by the separation of pigments in the multi-color paint; it can also be used as an additive for hammer paint to increase the hammer effect. Silicone oils are also available in the form of emulsions. Silicone oil is only used in coatings under specific conditions, such as methyl hydrogen-containing silicone oil polycondensation under the action of a catalyst to form a water-resistant and anti-stick coating.

Silane coupling agent is a silane with organic functional groups, which can improve the adhesion of coatings in high humidity, improve the dispersibility of pigments and the cross-linking properties of resins. Also, silicone oil and silane coupling agent containing reactive functional groups are often used as reactants for copolymerization and grafting reaction with other monomers or resins to achieve the purpose of modifying other resins.

Aqueous silicon-containing polymers refer to a class of silicon-containing polymers that can be stably dispersed in water. The use of water-based silicon-containing polymers in water-based coatings can not only take advantage of the advantages of silicone materials, but also eliminate the reduction in water resistance of the coating film caused by the hydrophilic modification of the resin and the high surface tension of the water-based coating caused by the coating film. ills. Therefore, waterborne silicon-containing polymers have become one of the most promising film formers for waterborne coating systems.