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A kind of synthetic method of silane hybrid silicone resin emulsion

A synthesis method, resin emulsion technology, applied in coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve problems such as poor storage stability of silicone resin emulsions

Active Publication Date: 2022-06-24
CHANGZHOU JIANUO ORGANIC SILICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention firstly adopts organic silicon low prepolymer and vinyltrimethoxysilane (A171) to prepare silane hybrid silicone resin, and then uses AMPS to modify silane hybrid silicone resin, so as to solve the problem of poor storage stability of silicone resin emulsion question

Method used

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  • A kind of synthetic method of silane hybrid silicone resin emulsion
  • A kind of synthetic method of silane hybrid silicone resin emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) The method for synthesizing the organosilicon prepolymer is as follows: the raw materials for synthesizing the organosilicon resin: 120 parts of monomethyltrichlorosilane (M1), 80 parts of dimethyldichlorosilane (M2), 80 parts of silane (P1), 120 parts of diphenyldichlorosilane (P2), and 120 parts of methylvinyldichlorosilane were mixed thoroughly in proportion and added to 600 parts of xylene, 1200 parts of butanol and 600 parts of water were added, The hydrolysis temperature is controlled at 5°C, the hydrolysis is completed in 5 hours, and the solution is washed with water to pH ≈ 7 and vacuumized to remove the solvent to obtain a silicone resin prepolymer.

[0019] (2) Add 100 parts of organosilicon prepolymer into the reaction kettle, then add 50 parts of ethylene glycol butyl ether and 50 parts of n-butanol, then heat up to 60°C, and then dropwise add 32.5 parts of vinyltrimethoxy within 2h Silane, after dripping and holding for 1 h, vacuuming to remove the sol...

Embodiment 2

[0026] The consumption of 2-acrylamido-2-methylpropanesulfonic acid in this example is 8 parts, and the rest are the same as in Example 1.

Embodiment 3

[0028] The consumption of 2-acrylamido-2-methylpropanesulfonic acid in this example is 11 parts, and the rest are the same as in Example 1.

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Abstract

The invention belongs to the technical field of organic synthesis, and in particular relates to a synthesis method of a silane hybrid organic silicon resin emulsion. According to the parts by mass, the emulsion is composed of: 100 parts of silicone prepolymer, 15-50 parts of vinyltrimethoxysilane, 8-20 parts of 2-acrylamido-2-methylpropanesulfonic acid, benzene peroxide 0.4-0.8 parts of formyl, 50 parts of n-butanol, 50 parts of butyl glycol ether, 8-16 parts of acetone, 3-7 parts of N,N-dimethylformamide. First react silicone prepolymer and vinyltrimethoxysilane to prepare silane hybrid silicone resin, then add AMPS modifier, use BPO as initiator, and make silane hybrid silicone resin obtain water dispersion through solution polymerization sex. The prepared product can be cured at high temperature to form a film or can be cured with a water-based epoxy curing agent at room temperature to form a film, and is widely used in various high-temperature equipment and parts for anticorrosion.

Description

technical field [0001] The invention belongs to the technical field of organic synthesis, in particular to a method for synthesizing a silane hybrid organosilicon resin emulsion. Background technique [0002] Silane containing organic functional groups is an organic and inorganic hybrid compound. As a coupling agent, it can enhance the interaction between organic compounds and inorganic materials, and is a material that improves the actual bonding strength of polymers and inorganic materials. . [0003] Silane coupling agents are also widely used in the coatings industry. When the coating contains a small amount of silane coupling agent, after its coating, silane will migrate to the interface between the coating and the substrate, react with the moisture on the inorganic surface, hydrolyze to form silanol groups, and then form hydrogen bonds with the hydroxyl groups on the surface of the substrate Or condensed into -Si-M (M is a metal element on the inorganic surface), and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F285/00C08F220/58C08F283/12C08F230/08C09D151/08C09D5/08
CPCC08F285/00C08F283/124C09D151/085C09D5/08C09D5/18C08F230/085C08F220/585
Inventor 胡磊杰胡孟进
Owner CHANGZHOU JIANUO ORGANIC SILICON