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Synthetic process of high temperature resistant epoxy vinyl ester resin

A technology of epoxy vinyl ester and synthesis process, which is applied in the field of synthesis process of high temperature resistant epoxy vinyl ester resin to achieve the effects of high heat distortion temperature, good mechanical properties and improved labor productivity

Inactive Publication Date: 2009-06-10
HUACHANG POLYMER EAST CHINA UNIV OFSCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no report of epoxy vinyl ester resin being used for glass flake cement in the high temperature section of wet flue gas desulfurization

Method used

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  • Synthetic process of high temperature resistant epoxy vinyl ester resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 340 g of linear phenol-formaldehyde epoxy resins, 150 g of methacrylic acid, 1.2 g of benzyldimethylamine, and 0.15 g of p-phenol were charged into the reactor. The temperature was gradually raised to 130° C. under the condition of feeding nitrogen, and the temperature was maintained until the measured acid value was less than 30 mgKOH / g. Cool down to below 110°C, add 0.05g of tert-butylcatechol and 260g of styrene, stir thoroughly, and finally cool to room temperature, filter to obtain a light yellow viscous liquid.

Embodiment 2

[0025] Four (p-hydroxyphenyl) ethane tetraglycidyl ether epoxy resin 340g, acrylic acid 115g, benzyltrimethylammonium chloride 0.95g, methyl p-phenol 0.10g drop into the device shown in example 1, pass into Under the condition of nitrogen, the temperature is gradually raised to 120°C, and the temperature is maintained until the measured acid value is less than 30mgKOH / g. Cool down to below 110°C and add 0.05g of tert-butylhydroquinone, 0.08g of copper naphthenate solution, 210g of styrene, and 40g of divinylbenzene, stir thoroughly, and finally cool to room temperature and filter to obtain a light yellow viscous liquid.

Embodiment 3

[0027] 340g of pyroglucinol triglycidyl ether epoxy resin, 170g of crotonic acid, 1.4g of benzyltriethylammonium chloride, 0.18g of tert-butyl hydroquinone are dropped into the device shown in example 1, pass into Under the condition of nitrogen, the temperature is gradually raised to 160°C, and the temperature is maintained until the measured acid value is less than 30mgKOH / g. Cool down to below 110°C, add 0.05g of copper naphthenate solution, 250g of styrene, 20g of diallyl phthalate, stir thoroughly, and finally cool to room temperature, filter to obtain a light yellow viscous liquid.

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Abstract

The invention provides a high-temperature resistant epoxy vinyl ester resin for a glass flake daub high-temperature section of wet flue gas desulfurization. A synthesis process comprises the following steps: polyfunctional-group epoxy resin and organic monadic unsaturated carboxylic acid react at a temperature between 120 and 160 DEG C in the presence of catalyst and inhibitor, and then are diluted by crosslinkable monomers, so as to synthesize the epoxy vinyl ester resin for the glass flake daub high-temperature section of wet flue gas desulfurization. Compared with the prior art, the resin has the following advantages that the resin has high heat distortion temperature and good acid-alkali resistance; as the resin is high in crosslinking density and difficult to be permeated by solvents, the resin of the type is quite good in solvent resistance; the resin is applicable to special corrosion-resistant environment in the presence of solvents, oxidizing media and high-temperature flue gas and the like; and glass fiber reinforced plastic made from the resin has high strength retention at a high temperature.

Description

technical field [0001] The invention relates to a synthesis process of high temperature resistant epoxy vinyl ester resin, in particular to a synthesis process of epoxy vinyl ester resin used in the high temperature section (100°C-200°C) of wet flue gas desulfurization glass flake cement. Background technique [0002] The high temperature section of wet flue gas desulfurization glass flake cement refers to the flue from the outlet flue of the original flue gas heat exchanger to the inlet flue of the absorption tower. The heat distortion temperature of ester resin is around 100°C. For the corrosive environment above 100°C, not only the corrosion resistance is limited, but also the strength of the resin material is greatly reduced, which is obviously not suitable. Ordinary resin materials will lose strength due to high temperature, resulting in insufficient rigidity, cracking and debonding of the lining due to structural vibration, or ablation and corrosion of the inner lining...

Claims

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Application Information

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IPC IPC(8): C08F283/10
CPCC08F2/40
Inventor 茆凌峰刘坐镇姚星杨萌
Owner HUACHANG POLYMER EAST CHINA UNIV OFSCI & TECH
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