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Acrylic acid modified water-based stoving varnish alkyd resin and preparation method thereof

A technology of alkyd resin and acrylic acid, which is applied in the direction of coating, etc., can solve the problems of gloss, hardness, and chemical resistance that cannot meet the needs of users, the quality of water-based resins is uneven, and the environmental protection performance is insufficient, so as to reduce environmental pollution. Burden, superior chemical resistance, superior abrasion resistance effect

Inactive Publication Date: 2020-10-16
HUALUN NALU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large part of the resin used in these coatings is oily resin, and a large amount of solvent is used. During its use, the volatilization of organic solvent will cause great pollution to the environment.
[0003] With the improvement of domestic environmental protection requirements year by year, water-based amino baking varnish resins are gradually promoted. However, the quality of water-based resins is uneven. At present, many water-based resins on the market are due to factors such as coating and paint film appearance. More co-solvents will be added, so it is slightly insufficient in terms of environmental performance; while the other part of the resin, although the amount of co-solvents is small, but the performance of gloss, hardness, chemical resistance and other aspects are far from meeting the needs of users, only Can be used in a few low-demand areas

Method used

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  • Acrylic acid modified water-based stoving varnish alkyd resin and preparation method thereof
  • Acrylic acid modified water-based stoving varnish alkyd resin and preparation method thereof
  • Acrylic acid modified water-based stoving varnish alkyd resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] one step reaction

[0025] a. Add 30.4% lauric acid, 12.4% pentaerythritol, 6.6% trimethylolpropane, 8.96% neopentyl glycol, 0.8% maleic anhydride, 2.5% adipic acid, 26.9% phthalic anhydride and 1% hypophosphorous acid into the reactor , raise the temperature to 155-160°C for 1 hour; within 2 hours, raise the temperature to 205°C and maintain, the gas phase drops below 80°C, add the reflux solvent butyl acetate 5.1% for reflux reaction, maintain reflux at 205°C, detect the solid acid value and viscosity, and reach After the index cools down;

[0026] b. Cool down to 175°C, then add 1.2% maleic anhydride, the raw material in a, keep the reaction at 165-175°C for 1 hour, check the acid value and viscosity index, cool to 110-115°C after passing, add 4.14% dipropylene glycol methyl ether Dilute to form a semi-finished product;

[0027] two-step reaction

[0028] c. Put 62.9% of semi-finished products, 3% of dipropylene glycol methyl ether and 0.14% of antioxidant 1010 in...

Embodiment 2

[0031] one step reaction

[0032] a. Add 28.4% lauric acid, 11.4% pentaerythritol, 7.6% trimethylolpropane, 9.96% neopentyl glycol, 1.5% maleic anhydride, 4.5% adipic acid, 27.2% phthalic anhydride and 1% hypophosphorous acid into the reactor , raise the temperature to 155-160°C for 1 hour, then raise the temperature to 205°C for 2 hours, then add the reflux solvent butyl acetate 5.1% for reflux reaction, and maintain the reflux at 205°C to detect the solid acid value and viscosity. After the index cools down;

[0033] b. Cool down to 175°C, then add 1.2% maleic anhydride as the raw material in a, keep the reaction at 165-175°C for 1 hour, check the acid value viscosity index, cool to 110-115°C after passing, add dipropylene glycol methyl ether 2.14 % diluted to form a semi-finished product;

[0034] two-step reaction

[0035] c. Put 59.9% of semi-finished products, 3% of dipropylene glycol methyl ether and 0.14% of antioxidant 1010 into the reactor, add 4.4% of acrylic aci...

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Abstract

The invention discloses acrylic acid modified water-based stoving varnish alkyd resin and a preparation method thereof, the acrylic acid modified water-based stoving varnish alkyd resin comprises a semi-finished product and a finished product, the acrylic acid modified alkyd resin is high in solid content, high in gloss, high in hardness, excellent in performance and environment-friendly, and therequirements of market users are greatly met.

Description

technical field [0001] The invention relates to an acrylic-modified alkyd resin, in particular to an acrylic-modified water-based baking varnish alkyd resin and a preparation method thereof. Background technique [0002] Amino baking varnish resin coatings are widely used in all aspects of social life, sports and fitness equipment, battery cars, various plastic parts, glass parts and so on. A large part of the resin used in these coatings is oily resin, which uses a large amount of solvents. During its use, the volatilization of organic solvents will cause great pollution to the environment. [0003] With the improvement of domestic environmental protection requirements year by year, water-based amino baking varnish resins are gradually promoted. However, the quality of water-based resins is uneven. At present, many water-based resins on the market are due to factors such as coating and paint film appearance. More co-solvents will be added, so it is slightly insufficient in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/52C08F283/01C08F220/06C08F212/08C08F220/14C08F220/18C08F220/20C09D151/08
CPCC08G63/52C08F283/01C09D151/08C08F220/06C08F212/08C08F220/14C08F220/1804C08F220/20
Inventor 顾龙秦宽彬孙飚戴晨黄娟
Owner HUALUN NALU NEW MATERIALS
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