According to the chemical structure, silicone oil is divided into methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy silicone oil, and methyl trifluoropropane. Base silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, hydroxy hydrogen silicone oil, cyanide silicone oil, etc.; from the point of use, there are damping silicone oil, diffusion pump silicone oil, hydraulic oil, insulating oil, Heat transfer oil, brake oil, etc.
Amino modified silicone oil
Amino-modified silicone oil is a polydimethylsiloxane containing amino groups in the side chain or end group, and is also known as amino silicone oil. This type of silicone oil is the basic ingredient specially used for textile softening and finishing agents. Because of its good adsorption and compatibility, when amino silicone oil is emulsified into a microemulsion by a suitable surfactant, it can increase the softness of fiber materials when used in fabric finishing, so it can be used as a fabric softening finishing agent. In the finishing of various textiles, amino silicone oil can also be used in the fields of cosmetic additives, coating additives, resin modifiers and brighteners.
Epoxy modified silicone oil
A type of silicone oil containing epoxy groups in the side chain or end group of polydimethylsiloxane is called epoxy-modified silicone oil. The use of this type of modified silicone oil can improve the elasticity of the fabric. If this type of silicone oil is used in conjunction with polyether modified silicone oil, the fabric after finishing will have better softness, wrinkle resistance and washing resistance, and it will be blended with amino modified silicone oil. Use it to make the fabric have a better hand feeling.
Polyether modified silicone oil
Polydimethylsiloxane containing polyether groups (polyoxyethylene, polyoxypropylene, fatty alcohol polyoxyethylene polyoxypropylene ether group) in the side chain or end group is called polyether modified silicone oil, It can improve the moisture absorption of fabric finishing. Because the polyether group is hydrophilic, the hydrophilicity of polyether silicone oil increases, and the molecule has both a hydrophobic group and a hydrophilic group, so that this type of silicone oil exhibits better water solubility and does not Problems such as demulsification and oil floating will occur. Secondly, the introduction of polyether groups also increases the moisture absorption, antistatic properties, and easy decontamination properties of the finished fibers or fabrics, so polyether silicone oils are used more in softeners, cosmetics, and shampoos. Another main use of polyether silicone oil is as a stabilizer for polyurethane foam as a surfactant, also known as a foam stabilizer, 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.
Carboxy modified silicone oil
Polydimethylsiloxanes containing carboxyl groups in side chains or end groups are called carboxyl modified silicone oils. Such modified silicone oils can be used in fiber treatment agents, automotive polishes, paint additives, etc. Carboxy modified silicone oil and amino silicone oil are used together to increase durability when used in fiber treatment, and it is not easy to fall off during washing.
Alcohol hydroxyl modified silicone oil
Alcoholic hydroxyl group-terminated polydimethylsiloxanes or polydimethylsiloxanes containing alcoholic hydroxyl groups in the main chain are called alcoholic hydroxyl modified silicone oils. Because the ends of the molecular main chain or the light groups between the molecular chains are reactive and can be cross-linked when heated, this type of silicone oil can be used as a structure control agent in the processing of silicone rubber, and it can also be used for anti-erbation treatments such as paper. Using alcohol-hydroxy modified silicone oil to replace part of ethylene glycol for copolymerization can improve the resilience, flexibility, tear strength, abrasion resistance, heat resistance and other properties of polyurethane fibers and films. It can also improve polyurethane的FORMability.
Phenol Light Base Modified Silicone Oil
Polydimethylsiloxane with phenol light group end-capping or main chain containing phenol light group belongs to phenol modified silicone oil. The phenolic group in the modified silicone oil molecule has high reactivity and heat resistance, so its emulsion has good stability and wide application. If the amino-modified silicone oil is mixed with the phenol-based modified silicone oil, it can be compounded into a synthetic fiber oil with excellent heat resistance and mold release.
Mercapto modified silicone oil
Polydimethylsiloxane containing thiol in its side chain or end group is called thiol-modified silicone oil. The thiol in its molecule can interact with silicone containing unsaturated bonds under the action of ultraviolet rays and photopolymerization initiators. The compound undergoes a free radical addition reaction. This kind of silicone oil is the main component of ultraviolet and electron beam curing type silicone resin rubber, which is widely used in anti-stick release coatings, and can also be used as a release agent.
Other modified silicone oil
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 copolymer modified silicone oil, alkyl ether polyether silicone oil, ring Oxygen polyether silicone oil, amino polyether block silicone oil, glyceryl ether-based silicone oil, phosphate-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 less demand and less market share.