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Formula and production process of high molecular weight corrosion-resistant epoxy vinyl ester resin

An epoxy vinyl ester, high molecular weight technology, applied in the field of high molecular polymers, can solve the problems of toughness, surface air-drying and alkali corrosion resistance, resin curing linear shrinkage rate, liquid resin thixotropic index is not ideal, etc. Excellent hydrolytic stability, good surface air-drying, excellent alkali resistance

Inactive Publication Date: 2018-06-15
西宁晶海科教化玻仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some applications, the indicators such as toughness, surface air drying and alkali corrosion resistance, resin curing line shrinkage and liquid resin thixotropic index of the cured resin are not ideal and need to be further improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] E-51 or E-44 phenol A epoxy resin 100

[0039] Acrylic 26.5

[0040] Fumaric Acid 6.0

[0041] Toluene diisocyanate 11.5

[0042] Styrene 145

[0043] P-phenol 0.105

[0044] Catalyst A: Benzyldimethylamine 0.99

[0045] Catalyst B: organotin (C 4 h 9 ) 2 Sn(OOCC 11 h 23 ) 2 0.79

[0046] Operate the production according to the steps shown in the above-mentioned production method.

Embodiment 2

[0048] E-51 bisphenol A epoxy resin 100

[0049] Acrylic 29

[0050] Fumaric acid 7.4

[0051] Toluene diisocyanate 7.5

[0052] Styrene 133

[0053] p-phenol 0.022

[0054] Catalyst A: Tetramethylammonium chloride 0.70

[0055] Catalyst B: organotin (C 4 h 9 ) 2 SnO 0.26

[0056] Operate the production according to the steps shown in the above-mentioned production method.

Embodiment 3

[0058] E-44 bisphenol A epoxy resin 100

[0059] Acrylic 20.6

[0060] Fumaric acid 8.9

[0061] Toluene diisocyanate 7.4

[0062] Styrene 125

[0063] p-phenol 0.052

[0064] Catalyst A: benzyltrimethylammonium chloride 0.35

[0065] Catalyst B: Organotin C 4 h 9 SnOOH 0.79

[0066] Operate the production according to the steps shown in the above-mentioned production method.

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Abstract

The invention discloses a formula and a production process of a high molecular weight corrosion-resistant epoxy vinyl ester resin. According to the formula, unsaturated monocarboxylic acid uses a softmonomer acrylic acid to replace a traditionally used hard monomer methacrylic acid, and a bisphenol A epoxy resin is used as the main raw material for synthesizing the epoxy vinyl ester resin; and fumaric acid and toluene diisocyanate are used as chain extenders to produce the high molecular weight corrosion-resistant epoxy vinyl ester resin, and the styrene solution is the final product, and isnamed the epoxy vinyl ester resin. According to the production process, the chain extension reaction of toluene diisocyanate is performed in a styrene solution at a temperature of 60 DEG C, ie., diluting and chain extending are sequentially performed. According to the present invention, the difficulty on the production operation due to the high viscosity product formed through the chain extensionreaction can be solved.

Description

technical field [0001] The invention belongs to the technical field of high molecular polymers, and in particular relates to a formula of high molecular weight corrosion-resistant epoxy vinyl ester resin and a production method thereof. Background technique [0002] Epoxy vinyl ester resin refers to the type of unsaturated polyester resin that contains vinyl ester groups at both ends of the molecule and the middle skeleton is epoxy resin. It is composed of unsaturated organic monocarboxylic acid (such as methacrylic acid) and epoxy resin. The resin is obtained by ring-opening esterification reaction. Due to its excellent corrosion resistance and mechanical properties, and convenient processing and molding, epoxy vinyl ester resin has become the main matrix material of corrosion-resistant FRP products. corrosion field. Most of the epoxy vinyl ester resins commercially available at home and abroad are synthesized from methacrylic acid and bisphenol A epoxy resin as the mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/67C08G59/17C08G59/14
CPCC08G18/7614C08G18/6705C08G59/1438C08G59/1466
Inventor 钟永林
Owner 西宁晶海科教化玻仪器有限公司
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