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Synthesis method of silane hybrid organic silicon resin emulsion

A technology of resin emulsion and synthesis method, which is applied in coatings, anti-corrosion coatings, fire-proof coatings, etc., and can solve the problems of poor storage stability of silicone resin emulsions, etc.

Active Publication Date: 2021-07-16
CHANGZHOU JIANUO ORGANIC SILICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Synthesis method of silane hybrid organic silicon resin emulsion

Examples

Experimental program
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Effect test

Embodiment 1

[0018] (1) The synthesis method of silicone prepolymer is as follows: the raw materials for synthetic silicone resin: 120 parts of monomethyltrichlorosilane (M1), 80 parts of dimethyldichlorosilane (M2), 1 phenyl trichlorosilane 80 parts of silane (P1), 120 parts of diphenyldichlorosilane (P2), and 120 parts of methylvinyl dichlorosilane were fully mixed in proportion and then 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, the water is washed to pH ≈ 7, and the solvent is removed by pumping to obtain a silicone resin prepolymer.

[0019] (2) Add 100 parts of silicone prepolymer into the reaction kettle, then add 50 parts of ethylene glycol butyl ether and 50 parts of n-butanol, then raise the temperature to 60°C, and then add 32.5 parts of vinyltrimethoxy Silane, after dripping and keeping warm for 1 hour, vacuumize and desolventize to obtain a silan...

Embodiment 2

[0026] The amount 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 amount 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 particularly relates to a synthesis method of a silane hybrid organic silicon resin emulsion. The emulsion is prepared from the following components in parts by mass: 100 parts of an organic silicon prepolymer, 15 to 50 parts of vinyl trimethoxy silane, 8 to 20 parts of 2-acrylamido-2-methylpropanesulfonic acid, 0.4 to 0.8 part of benzoyl peroxide, 50 parts of n-butyl alcohol, 50 parts of ethylene glycol butyl ether, 8 to 16 parts of acetone and 3 to 7 parts of N, N-dimethylformamide. The method comprises the steps of reacting the organic silicon prepolymer with vinyl trimethoxy silane to prepare silane hybrid organic silicon resin, adding an AMPS modifier, and carrying out solution polymerization by taking BPO as an initiator to enable the silane hybrid organic silicon resin to obtain water dispersibility. The prepared product can be cured at high temperature to form a film, can also be cured at room temperature by using a waterborne epoxy curing agent to form a film, and is widely applied to corrosion prevention of various high-temperature equipment and parts.

Description

technical field [0001] 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. Background technique [0002] Silane containing organic functional groups is a hybrid compound of organic and inorganic. It can be used as a coupling agent to improve the interaction between organic compounds and inorganic materials. It is a material that improves the actual bonding strength between polymers and inorganic materials. . [0003] Silane coupling agents are also widely used in the coating industry. When the coating contains a small amount of silane coupling agent, after coating, the 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 condense into -Si-M (M is the metal element on t...

Claims

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Application Information

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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
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