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Organosilicon composition and preparation method thereof

A composition and silicone technology, applied in the field of fine chemical preparations, can solve problems such as incompetence of solutions, and achieve the effect of solving mixing incompatibility

Active Publication Date: 2012-08-22
JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to avoid this kind of problem, people tend to prepare it into emulsion, such as defoamer emulsion, release agent emulsion, cosmetic emulsion, etc., but if in some specific situations that cannot contain water, this The solution becomes impotent
So far, no significant progress has been found in this problem

Method used

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  • Organosilicon composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In a 1000mL beaker, put 100g of hydrogen-containing polydimethylsiloxane Me with a viscosity of 20mPa·s and a side chain hydrogen content of 0.1%. 3 SiO(MeHSiO) 2 (Me 2 SiO) 20 SiMe 3 and 130g polyether (m=20, n=12, R 3 For -H), heat up to 100°C, add 0.41g of chloroplatinic acid isopropanol solution, and continue to heat up to 130°C. Then add 460 g of trimethyl-terminated polydimethylsiloxane with a viscosity of 100 mPa·s, raise the temperature to 160° C., and maintain this temperature for 2 hours. After cooling to room temperature, white viscous silicone composition A was obtained.

Embodiment 2

[0032] In a 1000mL beaker, put 100g of hydrogen-containing polydimethylsiloxane Me with a viscosity of 100mPa·s and a side chain hydrogen content of 0.05%. 3 SiO(MeHSiO) 3 (Me 2 SiO) 69 SiMe 3 and 110g polyether (m=17, n=22, R 3 for -CH 3 ), heated to raise the temperature, and added 0.32g of chloroplatinic acid isopropanol solution at 100°C, continued to heat up to 110°C, and maintained at this temperature for 3h. Then add 220 g of trimethyl-terminated polydimethylsiloxane with a viscosity of 10,000 mPa·s, raise the temperature to 140° C., and maintain this temperature for 3 hours. After cooling to room temperature, white viscous silicone composition B was obtained.

Embodiment 3

[0036]In a 1000mL beaker, put 100g of a hydrogen content of 0.1% dihydrogen-terminated polyorganohydrogensiloxane HMe with a viscosity of 30mPa·s 2 SiO(Me 2 SiO) 16 SiMe 2 H and 132g polyether (m=9, n=20, R 3 For -H), heat up and add 0.28g of chloroplatinic acid isopropanol solution at 80°C, continue to heat up to 170°C, and maintain this temperature for 0.5h. Then 23.2 g of hydroxyl-terminated polydimethylsiloxane with a viscosity of 50,000 mPa·s was added, the temperature was lowered to 80° C., and maintained at this temperature for 2 hours. After cooling to room temperature, white viscous silicone composition C was obtained.

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Abstract

The invention relates to an organosilicon composition and a preparation method thereof, and belongs to the technical field of fine chemical preparations. The invention is characterized in that: the prepared organosilicon composition consists of polysiloxane, hydrogen-containing polysiloxane, polyether and a catalyst; and the preparation method comprises the following steps of: mixing the hydrogen-containing polysiloxane and the polyether, adding the catalyst at the temperature of between 30 and 110 DEG C, and reacting at the temperature of between 50 and 180 DEG C for 0.1 to 8 hours; adding the polysiloxane, reacting at the temperature of between 50 and 200 DEG C for 1 to 8 hours; and finally, cooling to room temperature to obtain the stable white sticky organosilicon composition. The organosilicon composition prepared by the method is stable, well solves the problem that components are not compactable, and can be used for removing harmful foams generated in various industrial production processes.

Description

technical field [0001] The invention relates to a stable organic silicon composition and a preparation method thereof, belonging to the technical field of fine chemical preparations. technical background [0002] Compatibility is a problem that people have been paying more attention to. This problem is very important when chemical additives are used as formula additives. As far as defoamers are concerned, they are used in a wide range, involving textile auxiliaries, metal processing Agents, water reducing agents, etc., when defoamers are added to these additives as one of the components, they are required to have low foam performance and compatibility, which is difficult for defoamers. Because, a substance with defoaming function must meet two basic conditions: first, low surface tension; second, slightly soluble or incompatible with the foaming medium. Even so, people are still working on the balance between the two. [0003] As a defoamer product, it may be composed of m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L83/12
Inventor 吴飞黄伟曹添何庆海钟翔
Owner JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD