α-氢-ω-羟基-聚二甲基硅氧烷 (CAS No.70131-67-8)
- 中文别名
- 107胶；端羟基聚二甲基硅氧烷；羟基硅油
- 英文名称
- Polydimethylsiloxane, dihydroxy terminated
- 分子式
- HO-[Si(CH3)2O]n-H
- 所属类别
- 胶粘剂助剂
- 物化性质
- 无色透明粘稠液体，无明显气味，不溶于水，可溶于苯、甲苯、二甲苯等芳香烃及脂肪烃类有机溶剂。具有极低的表面张力、良好的热稳定性和耐候性，电绝缘性优良，粘度随分子量增大而升高。
- 外观
- 无色透明粘稠液体，无机械杂质
English description（英文原文，共 1263 字符）
Product Name:Polydimethylsiloxane, dihydroxy terminated
English Name:Polydimethylsiloxane, dihydroxy terminated
CAS No.:70131-67-8
Aliases:107 silicone rubber, Hydroxy-terminated polydimethylsiloxane, Hydroxyl silicone oil, PDMS diol
Molecular Formula:HO-[Si(CH3)2O]n-H
Physical Properties:Colorless transparent viscous liquid with no obvious odor. Insoluble in water, soluble in aromatic hydrocarbons (benzene, toluene, xylene) and aliphatic hydrocarbon solvents. It has very low surface tension, good thermal stability, weather resistance, and excellent electrical insulation. Viscosity increases with molecular weight.
Uses:Mainly used as a surface treatment agent for rubber fillers, improving dispersibility and reinforcing performance of fillers in rubber matrix. In leather care and cosmetic formulations, it acts as a softening and smoothing agent, providing a sleek and moisturized feel. It is also used as an intermediate for preparing silicone rubber and modified silicone oils.
Technical Specifications:
Appearance: colorless transparent viscous liquid without mechanical impurities
Viscosity (25°C): 50–2000 mPa·s (adjustable by grade)
Hydroxyl content (as OH): 0.5%–2.5%
Density (25°C): 0.970–0.990 g/cm³
Flash point (closed cup): ≥200°C
English Name:Polydimethylsiloxane, dihydroxy terminated
CAS No.:70131-67-8
Aliases:107 silicone rubber, Hydroxy-terminated polydimethylsiloxane, Hydroxyl silicone oil, PDMS diol
Molecular Formula:HO-[Si(CH3)2O]n-H
Physical Properties:Colorless transparent viscous liquid with no obvious odor. Insoluble in water, soluble in aromatic hydrocarbons (benzene, toluene, xylene) and aliphatic hydrocarbon solvents. It has very low surface tension, good thermal stability, weather resistance, and excellent electrical insulation. Viscosity increases with molecular weight.
Uses:Mainly used as a surface treatment agent for rubber fillers, improving dispersibility and reinforcing performance of fillers in rubber matrix. In leather care and cosmetic formulations, it acts as a softening and smoothing agent, providing a sleek and moisturized feel. It is also used as an intermediate for preparing silicone rubber and modified silicone oils.
Technical Specifications:
Appearance: colorless transparent viscous liquid without mechanical impurities
Viscosity (25°C): 50–2000 mPa·s (adjustable by grade)
Hydroxyl content (as OH): 0.5%–2.5%
Density (25°C): 0.970–0.990 g/cm³
Flash point (closed cup): ≥200°C
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常见问题
- α-氢-ω-羟基-聚二甲基硅氧烷的 CAS 号是多少？
- α-氢-ω-羟基-聚二甲基硅氧烷的 CAS 号是 70131-67-8。
- α-氢-ω-羟基-聚二甲基硅氧烷的分子式和分子量是什么？
- α-氢-ω-羟基-聚二甲基硅氧烷的分子式为 HO-[Si(CH3)2O]n-H。
- α-氢-ω-羟基-聚二甲基硅氧烷的英文名称是什么？
- α-氢-ω-羟基-聚二甲基硅氧烷的英文名称为 Polydimethylsiloxane, dihydroxy terminated。
- α-氢-ω-羟基-聚二甲基硅氧烷还有哪些别名？
- α-氢-ω-羟基-聚二甲基硅氧烷又称 107胶、端羟基聚二甲基硅氧烷、羟基硅油。
- α-氢-ω-羟基-聚二甲基硅氧烷有哪些供应商和生产厂家？
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