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Hydroxysilicone Oil

  • Molecular Formula (C2H6OSi)nC26H54O5Si2

Properties: Hydroxy silicone oil is a linear polydimethylsiloxane with a hydroxyl end group, 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, can replace diphenylsilanediol, simplify the process, improve the process productivity. 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 the effect of dipole induction, 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 very good hydrophobicity. The viscosity can range from very small 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, leather, widely used as a structure control agent in the processing of silicone rubber, can effectively control the structure effect between the mixing of rubber and white carbon black, improve the processing performance of silicone rubber, prolong the shelf life of rubber. It can also be used to synthesize 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 production process of coatings, maintain the storage stability of coatings, improve the construction process, improve the product quality, and give coatings some special properties, such as leveling, anti-scratch, anti-adhesion, pigment dispersion, smoothness, special surface effects, wetting, hydrophobization, foam inhibition and so on. Reasonable and proper 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 room should be explosion-proof. When handling the product, unload it carefully so as not to damage the packaging and containers.

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