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Waterborne polyester resin coating and preparation method thereof

A water-based polyester resin and coating technology, applied in polyester coatings, coatings, etc., to achieve high environmental protection, economic cost disclosure, and high fullness

Inactive Publication Date: 2017-06-30
滁州市全丰物资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the variability of the atmospheric environment and the increase of pollutants, more stringent requirements are put forward for metal antirust coatings. How to further improve the insulation performance of polyester resin coatings and enhance their water-based insulation capabilities has become an important research topic in the industry.

Method used

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  • Waterborne polyester resin coating and preparation method thereof

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Effect test

specific Embodiment 1

[0023] Such as figure 1 As shown, it is the waterborne polyester resin coating described in this embodiment, including: polyhydric alcohol, polybasic acid, catalyst 6%, curing agent 2%, pigment 4%, filler 2%, cosolvent 12% and water 40%;

[0024] Described polyhydric alcohol comprises trimethylolpropane 8%, neopentyl glycol 12%, ethylene glycol 6%, propylene glycol 8%, and described polybasic acid comprises purified terephthalic acid 5%, isophthalic acid 12%, 6% phthalic acid, 10% trimellitic anhydride, 6% hexahydrophthalic acid, 10% maleic anhydride, 5% adipic acid;

[0025] The water-based polyester resin coating also includes 0.1% p-methoxyphenol, 6% ethylene glycol monobutyl ether, 8% dimethylethanolamine, and 60% deionized water.

[0026] More specifically, the preparation method of described waterborne polyester resin coating is as follows:

[0027] (1) Temperature rise reaction: In the first reaction kettle, polyhydric alcohol, polybasic acid, p-methoxyphenol, ethylen...

specific Embodiment 2

[0034] The water-based polyester resin coating of the present invention comprises: polyhydric alcohol, polybasic acid, catalyst 7%, curing agent 4%, pigment 6%, filler 4%, cosolvent 15% and water 60%;

[0035] Described polyhydric alcohol comprises trimethylolpropane 10%, neopentyl glycol 18%, ethylene glycol 9%, propylene glycol 10%, and described polybasic acid comprises purified terephthalic acid 10%, isophthalic acid 18%, 9% phthalic acid, 14% trimellitic anhydride, 9% hexahydrophthalic acid, 15% maleic anhydride, 8% adipic acid;

[0036] The water-based polyester resin coating also includes 0.2% p-methoxyphenol, 15% ethylene glycol monobutyl ether, 12% dimethylethanolamine, and 80% deionized water.

[0037] More specifically, the preparation method of described waterborne polyester resin coating is as follows:

[0038] (1) Temperature rise reaction: In the first reaction kettle, polyhydric alcohol, polybasic acid, p-methoxyphenol, ethylene glycol monobutyl ether, dimethy...

specific Embodiment 3

[0045] The water-based polyester resin coating of the present invention comprises: polyhydric alcohol, polybasic acid, catalyst 8%, curing agent 6%, pigment 8%, filler 6%, cosolvent 18% and water 80%;

[0046] Described polyhydric alcohol comprises trimethylolpropane 12%, neopentyl glycol 24%, ethylene glycol 12%, propylene glycol 12%, and described polybasic acid comprises purified terephthalic acid 15%, isophthalic acid 24%, 12% phthalic acid, 18% trimellitic anhydride, 12% hexahydrophthalic acid, 20% maleic anhydride, 10% adipic acid;

[0047] The water-based polyester resin coating also includes 0.3% p-methoxyphenol, 24% ethylene glycol monobutyl ether, 16% dimethylethanolamine, and 100% deionized water.

[0048] More specifically, the preparation method of described waterborne polyester resin coating is as follows:

[0049] (1) Temperature rise reaction: In the first reaction kettle, polyhydric alcohol, polybasic acid, p-methoxyphenol, ethylene glycol monobutyl ether, di...

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Abstract

The invention discloses a waterborne polyester resin coating, which includes 6-8% of polyol, polyprotic acid and a catalyst, 2-6% of a curing agent, 4-8% of pigment, 2-6% of a filling material, 12-18% of a cosolvent and 40-80% of water. The polyol comprises 8-12% of trimethylolpropane, 12-24% of neopentylene glycol, 6-12% of glycol and 8-12% of propanediol. The polyprotic acid includes 5-15% of refined terephthalic acid, 12-24% of m-phthalic acid, 6-12% of phthalic acid, 10-18% of trimellitic anhydride, 6-12% of hexahydro-phthalic acid, 10-20% of maleic anhydride, and 5-10% of adipic acid. The waterborne polyester resin coating further includes 0.1-0.3% of 4-methoxyphenol, 6-24% of 2-butoxyethanol, 8-16% of dimethyl ethanolamine and 60-100% of deionized water. The hydrolytic stability of polyester main chains is improved, so that the aqueous insulating properties of the polyester resin coating are improved. The waterborne polyester resin coating can be widely applied to aqueous insulation devices, overcomes the defects in the prior art, and meets the actual use demand.

Description

technical field [0001] The invention relates to a water-based polyester resin coating and a preparation method thereof, belonging to the technical field of synthetic coatings. Background technique [0002] In recent years, water-based environmentally friendly coatings, including high-solid and solvent-free coatings, water-based coatings, powder coatings and radiation-cured coatings, have achieved rapid development. Water-based polyester coating, one of the representative water-based coatings, has the characteristics of high gloss, strong adhesion, high fullness, and excellent impact resistance. It can be formulated with water-soluble amino resin to make water-based baking paint, and can also be used Hydrophilic polyisocyanate is formulated into water-based wood coatings cured at room temperature, so it is widely used in the protection and decoration of metal and wood surfaces; because polyester is easy to hydrolyze, the application of water-based polyester is limited to a ce...

Claims

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Application Information

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IPC IPC(8): C09D167/06C09D5/25C08G63/52
CPCC08G63/52C09D5/00C09D167/06
Inventor 戈建伦
Owner 滁州市全丰物资有限公司
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