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Organosilicon composition and preparation and application thereof

A technology of organosilicon and composition, applied in the field of fine chemical preparations, can solve the problems of not being able to take into account the defoaming performance and the stability of compatible products at the same time, and achieve the effect of improving stability and improving dispersion uniformity

Active Publication Date: 2017-09-01
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

[0008] The defoaming composition mentioned in the above patents cannot simultaneously take into account the defoaming and antifoaming performance, compatibility and product stability. In order to solve the deficiencies of the prior art, the present invention provides a silicone composition and its preparation method

Method used

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  • Organosilicon composition and preparation and application thereof
  • Organosilicon composition and preparation and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Add 50 parts into the reaction vessel, the viscosity is 50mPa.s (unless otherwise specified, the viscosity mentioned below is the kinematic viscosity value at 25°C), and the structural formula is (Me) 3 SiO (MeViSiO) 2 [(Me) 2 SiO] 50 Si(Me) 3 (It is mentioned in the text that Vi is the abbreviation of vinyl functional group) vinyl polyorganosiloxane, 25 parts of hydrogen-containing silicone resin with a hydrogen content of 0.1%, mix well and heat up to 70°C, add 0.0005 Parts (calculated as platinum) chloroplatinic acid isopropanol solution, continue to heat up to 100 ° C for 1 h; then add 400 parts dropwise to the container 3 SiO(MeHSiO) 20 [(Me) 2 SiO] 350 Si(Me) 3 Hydrogen-containing polyorganosiloxane, the dropwise addition time is controlled to be 2h, and the reaction is continued at 100°C for 1h after the dropwise addition; 15 parts of hydrophobic precipitation silica Sipernat® D10 (sold by Degussa Gmbh), 10 parts of formazan Based on MQ silicone resin (M:...

Embodiment 2

[0046] In the reaction vessel, add 395 parts of viscosities of 50mPa.s, structural formula Vi(Me) 2 SiO (MeViSiO) 101 [(Me) 2 SiO] 50 Si(Me) 2 Vinyl polyorganosiloxane of Vi, 5 parts of hydrogen-containing silicone resin with a hydrogen content of 0.2%, fully mixed and heated to 70°C, adding 0.005 parts (calculated as platinum) of isopropanol containing chloroplatinic acid Solution, continue to heat the reaction at 70°C for 1h; then add 90 parts dropwise to the container 2 SiO(MeHSiO) 11 [(Me) 2 SiO] 55 Si(Me) 2 H hydrogen-containing polyorganosiloxane, control the dropping time for 2h, continue to react at 70°C for 1h after the dropping is completed; add 5 parts of hydrophobic precipitation silica Sipernat® D10 (sold by Degussa Gmbh), 5 parts Methyl MQ silicone resin (M:Q ratio 1:1), stirred at 150°C for 2h, and obtained silicone active material A2 after cooling down to room temperature

Embodiment 3

[0048] Add 200 parts of the viscosity is 50mPa.s, structural formula is (Me) in the reaction vessel 3 SiO (MeViSiO) 2 [(Me) 2 SiO] 50 Si(Me) 3 Vinyl polyorganosiloxane, 10 parts of hydrogen-containing silicone resin with a hydrogen content of 0.2%, fully mixed and heated to 70 ° C, adding 0.05 parts (calculated as platinum) isopropanol solution of chloroplatinic acid , continue to heat up to 100°C for 1 hour; then dropwise add 140 parts of 3 SiO(MeHSiO) 2 [(Me) 2 SiO] 55 Si(Me) 3 Hydrogen-containing polyorganosiloxane, the dropwise addition time is controlled to be 2h, and the reaction is continued at 150°C for 1h after the dropwise addition; 75 parts of hydrophobic precipitation silica Sipernat® D17 (sold by Degussa Gmbh), 75 parts of formazan Based on MQ silicone resin (M:Q ratio 0.9:1), stirred at 150°C for 2h, and after cooling down to room temperature, silicone active material A3 was obtained

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Abstract

The invention relates to an organosilicon composition and preparation and application thereof and belongs to the technical field of fine chemical preparations. The invention is characterized in that the prepared organosilicon composition is composed of organosilicon active matter, polyether modified polysiloxane, saturated polyether and silicon dioxide. A preparation method comprises the following steps: (1) an organosilicon composition and saturated polyether are uniformly mixed to obtain a mixture I; (2) silicon dioxide and saturated polyether are uniformly mixed to obtain a mixture II; (3) after specific polyether modified polysiloxane is synthesized, the mixture I is added into polyether modified polysiloxane to obtain a mixture III; and (4) the mixture II is added into the mixture III so as to obtain the stable organosilicon composition. The prepared organosilicon composition is stable. The disadvantage that all the ingredients are not compatible with each other is solved. The organosilicon composition, as an internal additive, is applied to industrial auxiliary agents, such as a metal working fluid, a textile auxiliary agent, an industrial cleaning agent and the like. The organosilicon composition has excellent compatibility and antifoaming performance.

Description

technical field [0001] The invention relates to an organosilicon composition and its preparation and application, belonging to the technical field of fine chemical preparations. Background technique [0002] Foam is a common phenomenon in life and work, but the existence of foam in industrial production will bring great harm, such as reducing production efficiency, increasing production costs, and even affecting the final quality of products. Defoamers are chemical methods that effectively eliminate foam. In recent years, with the continuous development of industrial production, defoamers are more and more widely used as internal additives in industrial auxiliaries, such as textile auxiliaries, metal processing auxiliaries, industrial cleaning agents and so on. [0003] According to different defoaming active substances, defoaming agents are divided into several main types such as mineral oil type, polyether type and silicone type. Compared with other defoamers, organosili...

Claims

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Application Information

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IPC IPC(8): B01D19/04
CPCB01D19/0409
Inventor 黄伟曹添范元斌
Owner JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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