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Hydroxysilicone oil 63148-60-7

  • CAS 63148-60-7
  • Molecular Formula (C2H6OSi)nC26H54O5Si2

Properties: Hydroxysilicone oil is a linear polydimethylsiloxane with a hydroxyl end group, an oily liquid. It has the characteristics of methyl silicone oil. Low-viscosity hydroxyl silicone oil is an excellent structure control agent in silicone rubber processing. It can replace diphenylsilanediol, simplify the process, and improve the process efficiency. In hydroxyl silicone oil, Si-O has high thermal stability; the Si-O-Si bond on the Si atom connected to the hydrocarbon group has a dipole induction effect, which can improve its stability. The structure of the silicone oxygen chain also gives silicone low surface tension and weak intermolecular forces, and hydroxyl silicone oil, due to its special structure, has excellent hydrophobicity. Viscosity can vary from very low to tens of thousands of Pa-sec. Its hydroxyl content is from several ten-thousandths to more than ten percent, typical hydroxyl silicone oil viscosity ≤ 40mPa - s (25 ℃), refractive index 1.4000 ~ 1.4100 (25 ℃), hydroxyl content 4% ~ 5%. The terminal hydroxyl group is reactive and can condense with hydroxyl or alkoxy compounds under the catalytic action of organotin.

1. Hydroxysilicone oil is used in the production of silicone hydroxyl emulsion, as a processing agent for fabric, paper, and leather. It is also widely used as a structure control agent in the processing of silicone rubber. It can effectively control the structure effect between rubber and carbon black, improve the processing performance of silicone rubber, and extend the shelf life of rubber. It can also be used in the synthesis of various types of polysiloxane intermediates.

2. As a structure control agent for silicone rubber, it can simplify the processing of silicone rubber, improve the processing performance and enhance the transparency of products.

3. In textile and garment industry, it can be used as fabric softener, lubricant, waterproofing agent, finishing agent, etc.

4. Hydroxysilicone oil can improve the coating production process, maintain the storage stability of coatings, improve the construction process, enhance product quality, and impart special properties to coatings, such as leveling, anti-scratch, anti-adhesion, pigment dispersion, smoothness, special surface effects, wetting, hydrophobicity, and foam inhibition. Reasonable and appropriate selection of hydroxyl additives in silicone oil can effectively reduce costs and improve efficiency.

Hydroxysilicone Oil (3)
Hydroxysilicone Oil (4)
Hydroxysilicone Oil (5)

It should be stored separately from acids. Lighting, ventilation, and other means in the storage area must be explosion-proof. When handling the product, unload it carefully to avoid damaging the packaging and containers.

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