Diphenyldichlorosilane is a subdivided product of phenylchlorosilane and is widely used in many fields.

Diphenyldichlorosilane is a subdivided product of phenylchlorosilane. Its chemical formula is C12H10Cl2Si and it is an organic compound. Diphenyldichlorosilane appears as a colorless liquid with a pungent odor and is soluble in most organic solvents such as methylene chloride and tetrahydrofuran. Diphenyldichlorosilane is flammable and easy to hydrolyze, and can be used to produce phenyl deep-processed products. Its main demand is in the electronic and electrical, aerospace, and nuclear industries.

The preparation methods of diphenyldichlorosilane include Grignard method and direct method. The Grignard method uses silicon tetrachloride as the main raw material, adds phenyl Grignard reagent, and obtains diphenyldichlorosilane through filtration, distillation, recovery, rectification and other links. This method has high yield and good quality of finished products. and other advantages, but the production cost is relatively high; the direct method is the mainstream preparation method of diphenyldichlorosilane. This method uses chlorobenzene and silicon powder as the main raw materials, and obtains the by-product of phenyltrichlorosilane under the catalysis of a copper catalyst. ——Diphenyldichlorosilane.

According to the “2023-2028 China Diphenyldichlorosilane Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center ” shows that in recent years, with technological advancement, my country’s phenylchlorosilane production capacity has continued to expand and output has continued to grow. In 2022, my country’s phenylchlorosilane production capacity will reach nearly 30,000 tons. Phenylchlorosilane is a silicone monomer that can be subdivided into diphenyldichlorosilane and phenyltrichlorosilane. Phenyltrichlorosilane is mostly produced by condensation method, which has the advantages of convenient operation and high cost-yield. The diphenyldichlorosilane industry has high technical barriers, and its market price is slightly higher than phenyltrichlorosilane.

Diphenyldichlorosilane can be used to prepare group protective agents, silicone polymers and polymer aryl silicon compounds. It is the main demand end in the fields of electronic and electrical, aerospace and nuclear industries. In the field of electronics and electrical, diphenyldichlorosilane can be used to produce two-component addition type electronic potting glue; in the field of aerospace, diphenyldichlorosilane can be used as door and window sealing materials for aircraft and rockets; in the nuclear industry , the phenyl silicone rubber it produces can be used as shielding material for nuclear power plants.

In terms of market competition, the main manufacturers of diphenyldichlorosilane in my country include Xinyaqiang, Jingshuo New Materials, Cathay Huarong Chemical New Materials, etc. Xinyaqiang is the first company in my country to develop and produce diphenyldichlorosilane. According to its corporate annual report, the company’s sales of diphenyldichlorosilane reached 1,426 tons in 2021.

Industry analysts said that as phenylchlorosilane, diphenyldichlorosilane can be used to produce many chemical products, nuclear industry, Electronic and electrical fields are its main demand side. At present, due to factors such as high technical barriers, my country’s diphenyldichlorosilane production capacity is low and the market price is high. In the future, with technological advancement, the production cost of diphenyldichlorosilane in my country is expected to decrease, and its production capacity will be further expanded by then.