Emulsion composed of oil-in-water silicone oil, water and surfactant
Silicone oil is resistant to heat and oxidation. Prepared by emulsion polymerization of octamethylcyclotetrasiloxane in the presence of anionic surfactants such as sodium dodecylsulfonate or cationic surfactants such as hexadecyltrimethylammonium bromide and catalysts . It is a textile chemical finishing agent with excellent performance. It is often used for soft, elastic and smooth finishing of fabrics, silk-like finishing, wool-like finishing, water-repellent and waterproof finishing, etc. It can be used alone or mixed with other finishing agents. The fabrics finished with it can obtain comfortable, stylized, high-grade and functional quality effects.


Hydroxy silicone oil emulsions can be divided into cationic, anionic, nonionic, and composite ion emulsions according to the different surfactants used.
1. Cationic hydroxy silicone oil emulsion
The emulsifiers used in cationic hydroxyl emulsion polymerization are generally quaternary ammonium salts (and the catalyst is ammonium hydroxide. Cationic hydroxyl emulsion can be used for finishing of various textiles, which can improve fabric feel, improve fabric elasticity and smoothness , crisp performance; another unique advantage of it is that it is an ideal waterproofing agent for fabrics. When used together with methyl hydrogen silicone oil emulsion, the waterproof performance and waterproof durability can reach a very high level. It can be used as waterproofing for vinylon tarpaulin canvas agent, polyester card cloth waterproofing agent, etc.

2. Anionic Hydroxy Silicone Oil Emulsion
Anionic hydroxyl emulsion is characterized by good compatibility in fabric finishing agents, and the emulsion is very stable. In particular, most of the auxiliaries in textile printing and dyeing are anionic. If cationic hydroxyl emulsion is used, it is easy to cause demulsification and floating oil. Anionic hydroxyl emulsion can avoid this disadvantage, so it is more popular with users and has a wide range of uses.

3. Compound ionic hydroxyl silicone oil emulsion
Although cationic hydroxyl emulsion is an excellent fabric softening and finishing agent, this emulsion is not resistant to hard water and cannot be bathed with dimethylol dihydroxyethylene urea resin (2D) resin, catalyst magnesium chloride and anionic brightener Therefore, there are certain limitations in use. In addition, due to the poor stability of the emulsion, silicone polymers are easy to separate from the emulsion and float on the liquid surface, commonly known as "floating oil". If cationic and non-ionic emulsifiers are used for compounding in the emulsion polymerization process, the shortcomings of cationic emulsifiers to prepare hydroxyl silicone oil emulsions can be overcome, and the prepared silicone emulsions can withstand hard water and can be mixed with 2D resins, magnesium chloride and The whitening agent VBL is equivalent to bath use, and has good heat resistance and freezing resistance.


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