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Waterborne three-component polyester paint and preparation method thereof

A three-component, polyester paint technology, used in polyester coatings, coatings, etc., can solve problems such as human poisoning, isocyanate side reactions, affecting curing efficiency, etc., to reduce damage or pollution, enhance yellowing resistance, The effect of increasing the drying rate

Active Publication Date: 2013-01-09
FOSHAN HAITE CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the performance of polyester paint is higher than that of water-based paint, because the curing agent used in current polyester paint contains aromatic isocyanate, such as TDI and other toxic substances, it uses toluene, xylene, vinegar, ketones, etc. as solvents , easy to cause environmental pollution and poisonous to the human body
Moreover, the paint film is prone to yellowing when exposed to ultraviolet light for a long time.
In addition, the existing polyester paint does not use a curing accelerator, and the side reaction of isocyanate with water affects the curing efficiency

Method used

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  • Waterborne three-component polyester paint and preparation method thereof
  • Waterborne three-component polyester paint and preparation method thereof

Examples

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preparation example Construction

[0094] Such as figure 2 Shown, the preparation method of described waterborne three-component polyester paint may further comprise the steps:

[0095] S200, preparing a base paint.

[0096] Wherein, preparation base paint comprises:

[0097] Add the 0.1~6% wetting agent, 0.1~8% leveling agent, 10~60% diluent and 0.01~35% pigments and fillers into the dispersing tank, start the dispersing machine, mix for 10~60min, and obtain the first mixture.

[0098] Preferably, add the 0.2~5% wetting agent, 0.5~6% leveling agent, 10~50% diluent and 0.01~30% pigments and fillers into the dispersion tank, start the disperser, mix for 10~60min, A first mixture is obtained.

[0099] Add the 20-55% skeleton agent into the dispersion tank, stir and mix with the first mixture for 10-60min to obtain the second mixture.

[0100] Preferably, the 25-55% matrix agent is added into the dispersion tank, and stirred and mixed with the first mixture for 10-60 minutes to obtain the second mixture.

...

Embodiment 1

[0110] Add 0.1% wetting agent, 0.1% leveling agent, 20% diluent and 10% pigments and fillers into the dispersing tank, start the dispersing machine, and mix for 10-60 minutes to obtain the first mixture; add the 25% framework agent In the dispersing tank, stir and mix with the first mixture for 10~60min, obtain the second mixture; Described 0.5% defoamer, 0.01% thickener, 0.01% pH value regulator are added in the dispersing tank, and the second The mixture was stirred and mixed for 10~60min to obtain the third mixture; the third mixture was cooled and filtered to obtain the base paint; The proportioning mixes, obtains described water-based three-component polyester paint.

Embodiment 2

[0112] Add 6% wetting agent, 8% leveling agent, 60% diluent and 35% pigments and fillers into the dispersing tank, start the dispersing machine, and mix for 10-60 minutes to obtain the first mixture; add the 55% framework agent In the dispersing tank, stir and mix with the first mixture for 10 ~ 60min to obtain the second mixture; the 8% defoamer, 8% thickener, and 2% pH value regulator are added to the dispersing tank, and mixed with the second The mixture was stirred and mixed for 10~60min to obtain the third mixture; the third mixture was cooled and filtered to obtain the base paint; The proportioning mixes, obtains described water-based three-component polyester paint.

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Abstract

The invention discloses a waterborne three-component polyester paint, comprising a base paint, a curing agent, and a curing accelerator, wherein the curing agent is aliphatic diisocyanate, the curing accelerator is stannous octoate, and the ratio of the base paint to the curing agent to the curing accelerator is 100:2-35:0.1-8. Correspondingly, the invention also discloses a preparation method of the waterborne three-component polyester paint, comprising the steps of preparing a waterborne saturated polyester resin, preparing the base paint and preparing the waterborne three-component polyester paint. According to the invention, the waterborne three-component polyester paint has good low-temperature film-forming property, frost resistance, yellowing resistance, adhesion resistance, water resistance, high temperature resistance, chemical resistance, good flame retardant ability, etc., contains no volatile benzene, dimethylbenzene, formaldehyde, esters, ketones, or harmful heavy metal elements, is environmentally friendly and non-toxic, and is a novel green paint.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a water-based three-component polyester paint and a preparation method thereof. Background technique [0002] Polyester paint is a varnish and enamel made of polyester resin as a film former. In the 1990s, polyester paint was introduced into my country, and soon replaced other varieties of varnishes, becoming the main paint used in furniture production. At present, there are mainly two types of water-based paints and polyester paints (oil-based paints) on the paint market. Water-based paint uses water as a solvent, while polyester paint uses toluene, xylene, vinegar, ketones, etc. as solvents. In terms of performance, polyester paint has the advantages of hardness and wear resistance, high fullness, dry and heat resistance, acid and alkali resistance, various solvents and chemicals, and high insulation performance. In addition, the time for water-based paint to reach the highe...

Claims

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Application Information

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IPC IPC(8): C09D167/02C09D7/12C08G63/20
Inventor 郑伟洲张诚
Owner FOSHAN HAITE CHEM TECH
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