1. Product Name
Chemical name: Hydroxy terminated polydimethylsiloxane
CAS No: 70131-67-8
2. Product Feature
This product is an oily colorless or light yellow liquid, which is polymerized and hydrolyzed by scientific methods. In addition to the excellent properties of methyl silicone oil, it also has special properties brought by active hydroxyl groups. This product has excellent electrical insulation and resistance to high and low temperatures, with a high flash point and low freezing point. It can be used for a long time under conditions of -50 ℃ to+250 ℃. It has a low viscosity temperature coefficient, high compression ratio, low surface tension, good hydrophobicity and moisture resistance, chemical inertness, and physiological inertness.
3. Typical Properties
Item | 1206 | 206 | 206A |
Appearance | Colorless transparent liquid | Colorless or light yellow oily liquid |
Viscosity (25℃, mm²/s) | 50-120 | 25-40 | 35-45 |
Hydroxyl content (%) | ≤2.5 | ≥8.5 | 4.0 |
pH value | 6.5-7.5 | 6.5-7.5 | 6.5-7.5 |
Index of refraction (%) | 1.4000-1.4100 | 1.4000-1.4100 | 1.4000-1.4100 |
4. Application
1. This product is mainly used as a structural control agent for silicone rubber.
2. As a finishing agent for fabrics, this product can significantly improve the smoothness and sewing performance of polyester threads, while also possessing high temperature resistance and anti-static properties. After finishing polyester synthetic fabric, it can make the fabric soft, straight, smooth, elastic, smooth and full, while also endowing the fabric with waterproof and water repellent properties.
3. Can be used for anti sticking treatment, defoamer, and organic synthesis intermediates in the production of paper.