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A kind of organosilicon composition, preparation method and application

A technology of organosilicon and composition, applied in the field of preparation of solid defoamer or defoamer, organosilicon composition, can solve uneven dispersion, affect the dryness of solid defoamer, hardness adsorption capacity and defoaming and antifoaming performance , Carrier adsorption silicone grease can not be evenly adsorbed and other problems

Active Publication Date: 2016-12-28
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

Using a large amount of emulsifiers to emulsify low-viscosity silicone grease can control the particle size of the emulsion at about 20 μm, and the compatibility is good, but the defoaming effect of such defoamers is not ideal, and the foam suppression performance is even worse; in order to achieve better If the defoaming and anti-foaming effect is high, it is necessary to use high-viscosity cross-linked silicone grease with stronger anti-foaming effect, but this kind of silicone grease only relies on a small amount of emulsifier to emulsify, it is difficult to emulsify, and the dispersion is uneven, which will lead to uneven adsorption of silicone grease by the carrier Adsorption; a large amount of emulsifier will affect the dryness, hardness, adsorption capacity and antifoaming performance of the solid defoamer itself; how to keep the state of the solid defoamer from being affected while taking into account the defoaming properties of the defoamer, It is also a question of concern to many experts and scholars.

Method used

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  • A kind of organosilicon composition, preparation method and application
  • A kind of organosilicon composition, preparation method and application
  • A kind of organosilicon composition, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] An organosilicon composition, characterized in that it comprises the following raw materials, and each raw material occupies the total mass percentage of organosilicon:

[0054] A. Me with a viscosity of 600 mPa s 3 SiO(MeHSiO) 45 (Me 2 SiO) 260 SiMe 3 500g

[0055] B. Me with a viscosity of 20 mPa s 3 SiO(MeHSiO) 10 SiMe 3 3.5g

[0056] C. M: Silicone resin with Q = 0.75:1 18g

[0057] D. α-Dodecene 165g

[0058] E. Platinum content of 11ppm isopropanol solution of chloroplatinic acid 1.1g

[0059] F. The specific surface area is 90m 2 / g precipitation method hydrophobic silica 30g

[0060] Add 500g of hydrogen-containing polyorganosiloxane Me with a viscosity of 600mPa·s into the container 3 SiO(MeHSiO) 45 (Me 2 SiO) 260 SiMe 3 , 18g of M:Q = 0.75:1 silicone resin, then add 165g of α-dodecene and keep it warm at 70°C for 0.5h, then add 1.1g of chloroplatinic acid isopropanol solution with a platinum content of 11ppm at 60°C. React at 120°C fo...

Embodiment 2

[0062] The difference between Example 2 and Example 1 is that the raw materials of the organosilicon composition, and the percentage of each raw material in the total mass of organosilicon are:

[0063] A. Viscosity of 1200mPa s (C 2 h 5 ) 2 HSiO(MeHSiO) 130 (Me 2 SiO) 450 Si H(C2 h 5 ) 2 450g

[0064] B. Viscosity of 6mPa s (CH 2 =CH)Me 2 SiOSiMe 2 (CH=CH 2 ) 20g

[0065] C. M: Silicone resin with Q = 0.5:1 10g

[0066] D. Dipentene 458g

[0067] E. Platinum-alkoxide complex with a platinum content of 3ppm 2g

[0068] F. The specific surface area is 50m 2 / g of precipitation method hydrophobic silica 60g.

Embodiment 3

[0070] The difference between Example 3 and Example 1 is that the raw materials of the organosilicon composition, and the percentage of each raw material in the total mass of organosilicon are:

[0071] A. Me with a viscosity of 1500mPa s 3 SiO(MeHSiO) 155 (Me 2 SiO) 500 SiMe 3 750g

[0072] B. Me with a viscosity of 7 mPa s 3 SiO(MeHSiO) 2 SiMe 3 30g

[0073] C. M: Silicone resin with Q = 0.8:1 50g

[0074] D. Styrene 150g

[0075] E. Platinum-olefin complex with a platinum content of 7ppm 0.1g

[0076] F. The specific surface area is 420m 2 / g of precipitation method hydrophobic silica 20g.

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Abstract

The present invention relates to a crosslinked network polymer obtained on the basis of an addition reaction of a hydrogen-containing polyorganosiloxane, an organic silicon resin and an unsaturated hydrocarbon, followed by the process of adding a crosslinking agent containing an active group and silicon dioxide; the polymer has an improved defoaming performance, good anti-foaming effect, and is easy to handle and process, and the addition of an emulsifier does not reduce the anti-foaming effect. The polymer has a good anti-foaming performance with no decay, and the polymer formed therefrom can easily be processed.

Description

technical field [0001] The invention relates to the technical field of fine chemical preparations, in particular to an organosilicon composition, a preparation method and its application in the preparation of a solid defoamer or defoamer. Background technique [0002] Bubbles are a common phenomenon in life and work. For example, in many aqueous systems used in food processing, textile dyeing, paper production, sewage treatment and cleaning applications, the generation of foam needs to be controlled or prevented. In particular, suds formation needs to be kept at acceptable levels when laundering is carried out in automatic washing machines, front-loading washing machines. Excessive suds will cause washing liquid to overflow on the floor and reduce the efficiency of the washing operation itself. In the detergent industry, there is a tendency to use more efficient detergent compositions. Increasing the surfactant level, using a surfactant with a higher foam distribution tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D19/04
CPCC08L83/04B01D19/0409C08G77/12C08G77/20C08K3/36C08K5/56C08L23/00C08L83/00B01D19/0404
Inventor 吴飞池跃芹曹添杨有忠章强黄伟
Owner JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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