The most commonly used silicone oil, organic groups are all methyl, called methyl silicone oil. Organic groups can also use other organic groups to replace part of the methyl group, in order to improve a certain performance of silicone oil and suitable for a variety of different uses. Other common groups are hydrogen, ethyl, phenyl, chlorophenyl, trifluoropropyl and so on. In recent years, organic modified silicone oils have developed rapidly, and many organic modified silicone oils with special properties have appeared. According to the chemical structure, the silicone oil is divided into methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl chlorophenyl silicone oil, methyl ethoxysiloxy silicone oil, methyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxyl silicone oil, ethyl hydrogen silicone oil, hydroxyl hydrogen silicone oil, cyanide silicone oil, etc. Divided from the use, there are damping silicone oil, diffusion pump silicone oil, hydraulic oil, insulation oil, heat transfer oil, brake oil, etc.
Amino modified amino modified silicone oil is a polydimethylsiloxane containing an amino group in the side chain or end group, also known as amino silicone oil. This kind of silicone oil is the basic component of soft finishing agent specially used for textiles. Because of its good adsorption and compatibility, when the amino silicone oil is emulsified into a microemulsion with appropriate surfactants for fabric finishing can increase the softness of fiber materials, so it is used as a fabric soft finishing agent, suitable for a variety of textile finishing, amino silicone oil can also be used in cosmetic additives, paint additives, resin modifiers and brighteners and other fields.
A class of silicone oils containing epoxy group in the side chain or end group of epoxy-modified polydimethicone is called epoxy-modified silicone oil. The use of this kind of modified silicone oil can improve the elasticity of the fabric, if this kind of silicone oil is used with polyether modified silicone oil, the softness of the finished fabric is better, but also has anti-wrinkle, washable and other properties, and the use of amino modified silicone oil can make the fabric have a better feel.
Polyether modified side chain or end group containing polyether groups (polyoxyethylene, polyoxyethylene, fatty alcohol polyoxyethylene polyoxyethylene polyoxyel) polydimethicone is called polyether modified silicone oil, which can improve the moisture absorption properties of fabric finishing. Due to the hydrophilicity of polyether groups, the hydrophilicity of polyether silicone oil increases, and the molecule has hydrophobic groups and hydrophilic groups at the same time, so that such silicone oil shows better water solubility, and there will be no problems such as breaking milk and bleaching oil during use. Secondly, the introduction of polyether group also makes the hygroscopic property, antistatic property and easy decontamination of the finished fiber or fabric increase, so polyether silicone oil is used more in clothing softeners, cosmetics and shampoo supplies. Another major use of polyether silicone oil is as a surfactant for polyurethane foam stabilizer, also known as foaming agent, to adjust the bubble drop of polyurethane foam. Polyether silicone oil is a kind of active silicone softener with the largest amount and the best effect before the development of amino silicone oil softener.