What is Silicone oil?

Amino-modified silicone oil is polydimethylsiloxane containing amino groups in the side chain or end group, also known as amino silicone oil. This type of silicone oil is the basic ingredient specifically used in textile softening agents. Due to its good adsorption and compatibility, when amino silicone oil is emulsified into a microemulsion by an appropriate surfactant, it can be used for fabric finishing to increase the softness of fiber materials. Therefore, it is used as a fabric softening finishing agent and is suitable for In the finishing of various textiles, amino silicone oil can also be used in cosmetic additives, coating additives, resin modifiers, brighteners and other fields.

A type of silicone oil containing epoxy groups in the side chains or end groups of polydimethylsiloxane is called epoxy modified silicone oil. The use of this type of modified silicone oil can improve the elasticity of fabrics. If this type of silicone oil is used in conjunction with polyether-modified silicone oil, the finished fabric will have better softness, anti-wrinkle, washability and other properties. It is blended with amino-modified silicone oil. Use it to make the fabric have a better feel.

Polydimethylsiloxane containing polyether groups (polyoxyethylene group, polyoxypropylene group, fatty alcohol polyoxyethylene polyoxypropylene ether group) in the side chain or terminal group is called polyether modified silicone oil. It can improve the moisture absorption properties of fabric finishing. Since the polyether group is hydrophilic, the hydrophilicity of the polyether silicone oil increases. There are both hydrophobic groups and hydrophilic groups in the molecule, so that this type of silicone oil shows better water solubility and does not need to be used during use. Problems such as emulsification and oil drift may occur. Secondly, the introduction of polyether groups also increases the hygroscopicity, antistatic properties, and easy decontamination of the fibers or fabrics to be treated, so polyether silicone oil is widely used in clothing softeners, cosmetics, and shampoo products. Another main use of polyether silicone oil is as a surfactant for polyurethane foam stabilizer, also known as foam stabilizer, to adjust the bubble drop of polyurethane foam. Polyether silicone oil is the most widely used and most effective type of active silicone softener before the development of amino silicone oil softeners.

Polydimethylsiloxanes containing carboxyl groups in the side chains or terminal groups are called carboxyl modified silicone oils. This type of modified silicone oil can be used as fiber treatment agents, car polishes, paint additives, etc. The combination of carboxyl modified silicone oil and amino silicone oil can increase the durability when used for fiber treatment and will not easily fall off during washing.

Polydimethylsiloxane that is end-capped with alcoholic hydroxyl groups or contains alcoholic hydroxyl groups in the main chain is called alcoholic hydroxyl-modified silicone oil. Since the light groups at the end of the molecular main chain or between the molecular chains are reactive, they can be cross-linked when heated. This type of silicone oil can be used as a structural control agent in silicone rubber processing, and can also be used for anti-blooming treatments such as paper. Replacing part of ethylene glycol with alcohol-hydroxyl modified silicone oil for copolymerization can improve the resilience, softness, tear strength, abrasion resistance, heat resistance and other properties of polyurethane fibers and films. It can also improve polyurethane fibers and films. formability.

Polydimethylsiloxanes that are end-capped with phenol hydroxyl groups or contain phenol hydroxyl groups in the main chain are phenol-based modified silicone oils. The phenol group in this type of modified silicone oil molecules has high reactivity and heat resistance, so its emulsion has good stability and wide usability. If amino-modified silicone oil is mixed with phenol-modified silicone oil, it can be compounded into an oil for synthetic fibers with excellent heat resistance and mold release properties.

Polydimethylsiloxane containing mercapto groups in the side chains or terminal groups is called mercapto-modified silicone oil. The mercapto groups in its molecules can react with organic silicone containing unsaturated bonds under the action of ultraviolet rays and photopolymerization initiators. Compounds undergo free radical addition reactions. This type of silicone oil is the main component of ultraviolet and electron beam curable silicone resin rubber. It is widely used in anti-stick isolation coatings and can also be used as a release agent.

In addition to the above modified silicone oils, there are many other types of silicone oils, such as polydiorganosiloxane-polyether block copolymer modified silicone oil, alkyl and polyether co-modified silicone oil, alkyl ether polyether silicone oil, cyclic silicone oil, etc. Oxygen-based polyether silicone oil, amino polyether block silicone oil, glyceryl ether-based silicone oil, phosphate ester-based silicone oil, sugar-based polyether silicone oil, betaine-based silicone oil, etc. These silicone oils have different functional groups and therefore have special properties, but due to low demand, they have a small market share.