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Silicone oil usually refers to the linear polysiloxane which keeps liquid state at room temperature. It is a kind of silicone product with a wide range of varieties and applications. According to the different classification of the substituent groups on the polysiloxane chain, silicone oil can be divided into: methyl silicone oil, phenyl silicone oil, ethyl silicone oil, hydroxy silicone oil, amino silicone oil, hydrogen silicone oil, vinyl silicone oil and polyether modified silicone oil, fluorosilicone oil and so on.
According to the types of organic groups, the corresponding application characteristics are as follows:
Several representative silicone oil varieties are described as follows:
1. Dimethylsilicone oil dimethylsilicone oil is the most common silicone oil variety with the largest consumption and the widest application; in China, the commodity name of methylsilicone oil is 201 series, the commodity brands of Dow Corning company in the United States are dowcorning and ximeter, and the main models are pmx-200 series; the commodity brand of Wacker company in Germany is AK series; the commodity brand of shinyue company in Japan is KF series. China's local methyl silicone oil production enterprises include: Bluestar Jiangxi Xinghuo, Yichang Kelin silicon material Co., Ltd., Zhejiang Xin'an chemical industry, Guangzhou Tianci, Shandong Dayi chemical industry, Jiaxing Kerui silicone, etc.
2. Phenyl silicone oil, another kind of widely used phenyl silicone oil, is the product obtained after partial methyl is replaced by phenyl. According to the different content of phenyl, it can be divided into the following categories: low phenyl silicone oil (5% - 10% phenyl mole fraction) ）Keywords middle phenyl silicone oil (phenyl mole fraction 25%); high phenyl silicone oil (phenyl mole fraction 45%); high phenyl low polymerization silicone oil (phenyl mole fraction higher than 45%); crosslinked phenyl silicone oil.
3. Various ethyl ethoxysilanes of ethyl silicone oil are hydrolyzed in the presence of hydrochloric acid and condensed into polysilicate ether. After molecular rearrangement and fractionation in vacuum, various viscosity ethyl silicone oil can be obtained. It is used as a release agent for a variety of rubber and plastic products. The product has small volatility, small surface tension, non-toxic, non corrosive, aging resistance, and can be formulated into different viscosities according to the use needs. It is widely used as insulating material, precision instrument oil, hydraulic oil and special lubricating oil in electrical industry.
4. Hydroxy silicone oil hydroxy silicone oil can be used as the structural control agent in the production of room temperature silicone rubber and chain extender in the synthesis of other products. At present, it is mainly produced by Wacker chemical, Zhixin chemical, Hubei Longma, Bluestar, Zhejiang hengyecheng and other enterprises.
5. Amino silicone oil amino silicone oil is a basic component specially used for textile soft finishing agent, which is mainly produced by Dow Corning, Bluestar, Shandong Dayi chemical, demevak, Yichang Kelin and other enterprises. Dow Corning's trade mark is mainly of X series, maitu's trade mark is tsf4708, and Xinyue's trade mark is dc-8209a.
6. The name of 202 series is adopted for domestic hydrogen containing silicone oil manufacturers. At present, there are dozens of domestic enterprises producing hydrogen containing silicone oil. Except for Zhejiang hengyecheng, Bluestar and Xinan Chemical Industry, the capacity of other enterprises is less than 4000 tons / year. The commodity brands of Dow Corning's Hydrogenated silicone oil are mostly mhX series, Mitu's TSF series and Xinyue's kf-99 series.
7, vinyl silicone oil is the base material for producing liquid glue and silicone gel. At present, the main production enterprises in China are: LAN-STAR spark, Zhejiang Xin'an chemical group and Zhejiang run wo. The number of other companies is relatively small.
8. Among the modified silicone oil, polyether modified silicone oil is the most widely used, which is widely used as foam stabilizer, fiber oil agent, fabric finishing agent, cosmetics raw material, coating leveling agent, defoamer and pesticide developing agent, etc.; fluorosilicone oil has excellent weather resistance, lubricity and oil repellency due to its common advantages of both siloxane and fluorocarbon compounds, so it should be widely used in the world Friction fields such as aviation, automobile, electromechanical and electronic machinery.
Silicone oil is widely used. Silicone oil is mainly used as advanced lubricants, shockproof oil, insulating oil, defoamer, release agent, polishing agent, isolating agent and vacuum diffusion pump oil. The consumption structure of silicone oil emulsion is very different from different countries. The following is the consumption structure of Europe and the United States.
Distribution of silicon oil consumption in the United States in 2014
Data source: National silicon industry green development strategic alliance (sagsi)
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