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A kind of decolorization and deionization method of organosilicon resin

A silicone and deionization technology, which is applied in the field of decolorization and deionization of silicone resin, can solve problems such as extinction, and achieve the effect of solving the problem of extinction and reducing production costs

Active Publication Date: 2022-04-08
CHANGZHOU JIANUO ORGANIC SILICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of the present invention adds a decolorization and deionization process in the process of preparing the silicone resin, and sends the washed material into a decolorization tower for decolorization, thereby solving the problem of resin application caused by impurity ions in water during the synthesis of the silicone resin. Matting problem

Method used

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  • A kind of decolorization and deionization method of organosilicon resin
  • A kind of decolorization and deionization method of organosilicon resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The raw materials of synthetic silicone resin are calculated by mass as follows:

[0042] 120 parts of monomethyltrichlorosilane (M1);

[0043] 80 parts of dimethyl dichlorosilane (M2);

[0044] 80 parts of phenyltrichlorosilane (P1);

[0045] 120 parts of diphenyldichlorosilane (P2);

[0046] 120 parts of ester group-containing silicone coupling agent.

[0047] Fully mix the above-mentioned organosilicon monomers in proportion and add them to 600 parts of benzene, add 1200 parts of butanone and 600 parts of water, control the hydrolysis temperature at 5°C, and complete the hydrolysis in 5 hours. After the completion of the hydrolysis, wash with water. The material is fed into the decolorization tower from the lower part, and overflows from the upper part under the push of pressure. The decolorized material is added with 1 part of lead naphthenate catalyst and 140 parts of regulator epoxy-based silicone low molecular weight. Reduce the gel degree, then add toluene, ...

Embodiment 2

[0054] The raw materials and specific process of synthesizing silicone resin are the same as in Example 1.

[0055] The decolorization medium added in the decolorization tower is: organic high molecular polymer modified diatomite.

[0056] The specific preparation method steps of organic polymer modified diatomite are as follows:

[0057] (1) Put diatomaceous earth in a nitric acid solution with a concentration of 10%, ultrasonicate for 40 minutes at 30°C, wash with water until neutral, then centrifuge, dry, grind through a 400-mesh sieve, and set aside;

[0058] (2) Take the diatomite treated in step (1), mix it with polydimethyldiallyl ammonium chloride (the addition amount is 8% of diatomite mass) in aqueous solution, stir to make it uniformly dispersed Finally, drying, pulverizing and grinding to obtain polydimethyldiallyl ammonium chloride modified diatomite.

[0059] The residence time of the material in the decolorization tower: 20 seconds, the adsorption temperature ...

Embodiment 3

[0061] The raw materials of synthetic silicone resin are calculated by mass as follows:

[0062] 120 parts of monomethyltrichlorosilane (M1);

[0063] 80 parts of dimethyl dichlorosilane (M2);

[0064] 80 parts of phenyltrichlorosilane (P1);

[0065] 120 parts of diphenyldichlorosilane (P2);

[0066]120 parts of ester group-containing silicone coupling agent.

[0067] Fully mix the above-mentioned organosilicon monomers in proportion and add them to 600 parts of benzene, add 1200 parts of butanone and 600 parts of water, control the hydrolysis temperature at 5°C, and complete the hydrolysis in 5 hours. After the completion of the hydrolysis, wash with water. The material is fed into the decolorization tower from the lower part, and overflows from the upper part under the push of pressure. The decolorized material is added with 1 part of lead naphthenate catalyst and 140 parts of regulator epoxy-based silicone low molecular weight. Reduce the gel degree, then add toluene, a...

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Abstract

The invention belongs to the field of resin synthesis, and particularly relates to a decolorization and deionization method of organic silicon resin. The method of the invention adds decolorization and deionization processes in the process of preparing organic silicon resin, and the washed material is pressed from the lower part into the The decolorizing tower overflows from the upper part under the push of pressure, and then obtains the silicone resin through telomerization and polycondensation. The method of the present invention solves the problems in the resin application process caused by impurity ions in the water Matting problem, to meet the user's requirements.

Description

technical field [0001] The invention belongs to the field of resin synthesis, in particular to a decolorization and deionization method of organic silicon resin. Background technique [0002] Silicone resin is an important member of silicone materials. It is different from the linear structure of silicone rubber, and also different from silicone oil and silane. It is a three-dimensional network structure with the basic properties of silicone materials. , High temperature resistance, low temperature resistance, high insulation, weather resistance, radiation resistance, chemical resistance, hydrophobic and other characteristics. [0003] Due to the high cost of using deionized water or deionized water in the traditional production of silicone resin, in order to reduce the production cost, the existing production process changes deionized water or deionized water into tap water for hydrolysis. Washing with water, so that impurity ions (such as iron ions) in tap water are intro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/34C08G77/06C08G77/14C08G77/20C08G77/24
CPCC08G77/34C08G77/06C08G77/14C08G77/20C08G77/24
Inventor 胡磊杰胡孟进
Owner CHANGZHOU JIANUO ORGANIC SILICON