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Corrosion resistant resin of oxirene-ester in high molecular weight and producing method

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, unchanged transparency, excellent alkali resistance

Inactive Publication Date: 2005-01-12
HUACHANG POLYMER EAST CHINA UNIV OFSCI & TECH
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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-44 bisphenol 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 phenol 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

A formula for preparing epoxy vinyl ester resin is featured as that soft monomer of acrylic acid is used main raw material for synthesis by unsaturated monocarboxylic acid, fumaric acid and toluene diisocyanate are used as chain extendor. The production process of toluene diisocyanate being chain-extended in styrene solution at 60 degree i.e. diluting first and then chain extending is disclosed.

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 bispheno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/16
Inventor 周润培刘坐镇
Owner HUACHANG POLYMER EAST CHINA UNIV OFSCI & TECH
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