Synthesis process of novel silicon paste with high defoaming performance

A synthesis process and defoaming technology, applied in the directions of foam dispersion/prevention, separation method, liquid degassing, etc., can solve the problems of inability to meet the performance requirements of users, increase the production input of producers, and the preparation method is cumbersome, etc. The effect of high controllability, stable product and simple process

Pending Publication Date: 2021-10-12
福建省西斯特环保材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the preparation method of this technology is cumbersome and the conditions are harsh, and the silicone paste produced by this method has low tensile properties, which greatly increases the production investment of the producer, and cannot meet the performance requirements of the user.

Method used

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  • Synthesis process of novel silicon paste with high defoaming performance
  • Synthesis process of novel silicon paste with high defoaming performance
  • Synthesis process of novel silicon paste with high defoaming performance

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Effect test

Embodiment 1

[0026] The invention provides a synthesis process of a new type of silicone paste with high defoaming performance, which includes the following raw materials in parts by weight: 350-400 parts of silicone oil, 150-200 parts of hydrogen-containing silicone oil (hydrogen content 0.18%), vinyl silicone oil (vinyl content 0.8%) 100-150 parts, MQ resin 50-70 parts, white carbon black 20-40 parts, chloroplatinic acid-isopropanol solution (0.3%wt) 0.02-0.06 parts, post-treatment agent Cat. 2 20-30 parts, the specific synthesis steps are as follows:

[0027] S1. Material dispersion: put 380 parts of silicone oil, 132 parts of hydrogen-containing silicone oil (0.18% hydrogen content), 120 parts of vinyl silicone oil (0.8% vinyl content), 60 parts of MQ resin and 32 parts of white carbon black into the reactor Disperse at 400rpm for 15min;

[0028] S2. Heat preservation reaction: After step S1 is completed, slow down to 130rpm and stir and heat up. Add 0.04 parts of chloroplatinic acid-...

Embodiment 2

[0031] The invention provides a synthesis process of a new type of silicone paste with high defoaming performance, which includes the following raw materials in parts by weight: 350-400 parts of silicone oil, 150-200 parts of hydrogen-containing silicone oil (hydrogen content 0.18%), vinyl silicone oil (vinyl content 0.8%) 100-150 parts, MQ resin 50-70 parts, white carbon black 20-40 parts, chloroplatinic acid-isopropanol solution (0.3%wt) 0.02-0.06 parts, post-treatment agent Cat. 2 20-30 parts, the specific synthesis steps are as follows:

[0032] S1. Material dispersion: put 380 parts of silicone oil, 132 parts of hydrogen-containing silicone oil (0.18% hydrogen content), 120 parts of vinyl silicone oil (0.8% vinyl content), 60 parts of MQ resin and 32 parts of white carbon black into the reactor Disperse at 400rpm for 15min;

[0033] S2. One round of heat preservation reaction: After step S1 is completed, slow down to 130rpm and stir and heat up, add 0.025 parts of chloro...

Embodiment 3

[0037] The invention provides a synthesis process of a new type of silicone paste with high defoaming performance, which includes the following raw materials in parts by weight: 350-400 parts of silicone oil, 150-200 parts of hydrogen-containing silicone oil (hydrogen content 0.18%), vinyl silicone oil (vinyl content 0.8%) 100-150 parts, MQ resin 50-70 parts, white carbon black 20-40 parts, chloroplatinic acid-isopropanol solution (0.3%wt) 0.02-0.06 parts, post-treatment agent Cat. 2 20-30 parts, the specific synthesis steps are as follows:

[0038] S1. Material dispersion: put 380 parts of silicone oil, 132 parts of hydrogen-containing silicone oil (0.18% hydrogen content), 120 parts of vinyl silicone oil (0.8% vinyl content), 60 parts of MQ resin and 32 parts of white carbon black into the reactor Disperse at 400rpm for 15min;

[0039] S2. One round of heat preservation reaction: After step S1 is completed, slow down to 130rpm and stir and heat up, add 0.02 parts of chlorop...

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Abstract

The present invention discloses a synthesis process of a novel silicon paste with high defoaming performance, and particularly relates to the technical field of defoaming agents, the novel silicon paste comprises the following raw materials by weight: 350-400 parts of silicone oil, 150-200 parts of hydrogen-containing silicone oil (the hydrogen content is 0.18%), 100-150 parts of vinyl silicone oil (the vinyl content is 0.8%), 50-70 parts of MQ resin, 20-40 parts of white carbon black, 0.02-0.06 part of a chloroplatinic acid-isopropanol solution (0.3 wt%), and 20-30 parts of a post-treatment agent Cat.2. The methyl silicone oil is used as a reaction dispersing agent and a defoaming component by combining hydrosilylation reaction, and meanwhile, the MQ resin and the white carbon black are introduced as a reinforcing agent and a defoaming active component, so that on one hand, the white carbon black has the effect of reducing the reaction activity to enable the cross-linking reaction to be controllable, and on the other hand, the silicon paste process is combined, and the time of the silicon paste preparation process is greatly shortened; and the high-performance silicon paste with simple process and high efficiency is obtained.

Description

technical field [0001] The invention relates to the technical field of defoaming agents, more specifically, the invention relates to a synthesis process of a novel silicone paste with high defoaming performance. Background technique [0002] Silicone paste is a lubricating grease developed from fluorosilicon polymer as the main raw material, adding a certain proportion of polysiloxane. It is a translucent paste mixed with lubricating performance and insulating fillers and organic silicon grease. It acts as a lubricant with plastic, and the operating temperature range is -60°C-180°C. [0003] In the silicone paste synthesis process in the prior art, the hydrosilylation reaction is unsaturated under certain catalytic conditions (such as —CH=CH2, —CH2—CH=CH2, =C=O or =C=N, etc.) Addition reaction between hydrocarbon compounds and Si-H-containing organosilicon polymers. It can generate stable polysiloxane chains, which is one of the most important means of organosilicon functi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
CPCB01D19/0409B01D19/0427
Inventor 杨志荣
Owner 福建省西斯特环保材料科技有限责任公司
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