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The development history of silicone softener of amino silicone oil

The development history of silicone softener of amino silicone oil

The development history of silicone softeners can be traced back to the 1940s. As early as 1940, people tried to impregnate fabrics with dimethyldichlorosilane in order to obtain a certain waterproof effect. However, the use of dimethyldichlorosilane will release hydrogen chloride gas which is harmful to the human body and fabrics. In 1945, people impregnated the fabric with an alkaline solution of sodium methylsiliconate. It was found that the fabric was treated with weak acid and dried at 110°C~120°C to have a good waterproof effect. However, the high alkaline impregnating solution has a good effect on the fabric. Adverse effects [3]. Therefore, neither of the above two technologies has been adopted by the textile industry. After the emergence of hydrogen-containing silicone oil in the 1950s, researchers used hydrogen-containing silicone oil emulsion to finish fabrics and achieved a good waterproof effect. However, the waterproof membrane formed by hydrogen-containing silicone oil on the surface of the fabric is hard, brittle, and easy to fall off. But adding methyl silicone emulsion and hydrogen-containing silicone emulsion to blend and finish, the waterproof film formed is soft and feels good. This is a discovery of practical significance, which has triggered people’s interest in the research of silicone as a fabric softener. The development of polysiloxanes in the past 50 years, especially the emergence of reactive and functional polysiloxanes, has made organosilicon softeners colorful, widely used in fiber and fabric softening finishing, spinning finishes, and hair conditioning agents. And the compounding of household detergents, etc.

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