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A kind of low VOC epoxy ester resin and preparation method thereof

A technology of epoxy ester resin and epoxy resin, applied in the field of coatings, can solve the problems of harm, environmental pollution and high VOC content

Active Publication Date: 2021-11-16
山东乐化漆业股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the current epoxy ester coatings all have too high VOC content, which leads to the problems of environmental pollution and harm.

Method used

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  • A kind of low VOC epoxy ester resin and preparation method thereof
  • A kind of low VOC epoxy ester resin and preparation method thereof
  • A kind of low VOC epoxy ester resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of low-VOC epoxy ester resin, is prepared by the raw material component of following parts by weight: the soybean oil fatty acid of 28 parts, the E-12 epoxy resin of 29 parts, the reactive diluent of 20 parts, the petroleum resin of 18 parts, The balance is a solvent; the reactive diluent is a reaction adduct of epoxidized soybean oil and cardanol.

Embodiment 2

[0045] A low-VOC epoxy ester resin, prepared from the following raw material components by weight: 30 parts of linolenic acid, 28 parts of E-20 epoxy resin, 22 parts of reactive diluent, 20 parts of petroleum resin , the solid content of the epoxy ester resin is 70.5wt%; the reactive diluent is the reaction adduct of epoxy soybean oil and cardanol.

Embodiment 3

[0047] A kind of low VOC epoxy ester resin, is prepared by the raw material component of following parts by weight: the ricinoleic acid of 33 parts, the E-12 epoxy resin of 35 parts, the reactive diluent of 25 parts, the petroleum resin of 22 parts , the solid content of the epoxy ester resin is 71.2wt%; the reactive diluent is the reaction adduct of epoxy soybean oil and cardanol.

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Abstract

The invention discloses a low-VOC epoxy ester resin and a preparation method thereof. It is prepared from the following raw material components: vegetable oleic acid, epoxy Resin, reactive diluent and petroleum resin; also contain a certain amount of solvent; the reactive diluent is the reaction adduct of epoxy soybean oil and cardanol. Esterify vegetable oleic acid and epoxy resin to obtain epoxy ester; immediately pass nitrogen or CO 2 , and cooled to 140-160° C., adding petroleum resin and active diluent, melted and mixed evenly, then adding solvent and diluting to obtain the low-VOC epoxy ester resin. The invention adopts active diluent, which can replace about 20% of organic solvents, and reduces VOC emissions; adding a certain amount of petroleum resin not only reduces the raw material cost of the product, can speed up the drying speed, but also improves water resistance and corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an epoxy ester resin coating. Background technique [0002] One-component epoxy ester resin anticorrosion coatings occupy an important position in metal anticorrosion coatings. It dries quickly and has good anti-corrosion properties. However, the VOC of the product according to the traditional process is about 400g / L. [0003] On March 1, 2020, the State Administration for Market Regulation and the National Standardization Management Committee issued the national standard: GB / T38597-2020 technical requirements for coating products with low volatile organic compound content, of which: Table 2 Requirements for VOC content in solvent-based coatings: Industrial The one-component primer for protective coatings and mechanical equipment coatings requires VOC ≤ 420g / L. This technical requirement is in the construction state, not the VOC content of the original paint. Therefore, for pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/16C09D5/25C09D5/08C09D163/10
CPCC08G59/1472C09D5/00C09D5/08C09D163/10
Inventor 沈孝忠王福新李玉攀沈宁沈继祥
Owner 山东乐化漆业股份有限公司
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