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Solvent-free environment-friendly coating and preparation method thereof

An environmentally friendly coating and solvent-free technology, applied in powder coatings, polyester coatings, coatings, etc., can solve problems such as blistering and coating pinholes, and achieve the effects of reducing costs, improving wear resistance, and improving overall performance

Inactive Publication Date: 2019-04-12
CHONGQING QICAIHONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a solvent-free environmental protection coating and its preparation method, to solve the problem of pinholes and foaming in the coating due to water effusion during the curing process when the polyester powder coating with HAA as the curing agent is applied.

Method used

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  • Solvent-free environment-friendly coating and preparation method thereof
  • Solvent-free environment-friendly coating and preparation method thereof
  • Solvent-free environment-friendly coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of solvent-free environmental protection paint, comprises following raw material, and raw material is counted by mass percent: 56% of polyester resin, 4% of hydroxyalkylamide, 10% of high gloss barium sulfate, 4% of precipitated barium sulfate, 3% of calcium carbonate, rutile type titanium White powder 10%, mica powder 3%, nano calcium carbonate 4%, hollow glass microspheres 4%, curing inhibitor 0.05%, lubricant 0.3%, leveling agent 0.65%, benzoin 0.5%, anti-ultraviolet absorber 0.5%. Among them, the curing inhibitor is a quaternary ammonium salt or a quaternary phosphonium salt series compound, specifically triphenylethylphosphine bromide, and the leveling agent is ethylene bisstearamide.

[0034] The preparation method of above-mentioned a kind of solvent-free environmental protection paint, comprises the following steps:

[0035] (1) Drying: Dry all the raw materials before mixing, and the drying temperature is controlled at 65°C;

[0036] (2) Mixing: Put the...

Embodiment 2

[0047] A kind of solvent-free environmental protection paint, comprises following raw material, and raw material is counted by mass percentage: polyester resin 52%, hydroxyalkyl amide 2%, high-gloss barium sulfate 12%, precipitated barium sulfate 5%, calcium carbonate 3%, anatase type Titanium dioxide 12%, mica powder 3%, nano calcium carbonate 5%, hollow glass microspheres 4%, curing inhibitor 0.03%, lubricant 0.1%, leveling agent 0.6%, benzoin 0.67%, anti-ultraviolet absorbing agent 0.6% . Wherein, the curing inhibitor is a quaternary ammonium salt or a quaternary phosphonium salt series compound, specifically cetyltrimethylammonium bromide, and the lubricant is stearic acid.

[0048] The preparation method of above-mentioned a kind of solvent-free environmental protection paint, comprises the following steps:

[0049] (1) Drying: all raw materials are dried before mixing, and the drying temperature is controlled at 60°C;

[0050] (2) Mixing: Put the weighed raw materials ...

Embodiment 3

[0057] A kind of solvent-free environmental protection paint, comprises following raw material, and raw material is counted by mass percent: 58% of polyester resin, 8% of hydroxyalkylamide, 8% of high gloss barium sulfate, 4% of precipitated barium sulfate, 3% of calcium carbonate, rutile type titanium White powder 7%, mica powder 3%, nano calcium carbonate 3%, hollow glass microspheres 3%, curing inhibitor 0.1%, lubricant 0.4%, leveling agent 1.5%, benzoin 0.5%, anti-ultraviolet absorber 0.5%. Wherein, the curing inhibitor is a series compound of quaternary ammonium salt or quaternary phosphonium salt, specifically, benzyl trimethyl phosphorus chloride is used, and the lubricant is stearamide.

[0058] The preparation method of above-mentioned a kind of solvent-free environmental protection paint, comprises the following steps:

[0059] (1) Drying: Dry all raw materials before mixing, and the drying temperature is controlled at 70°C;

[0060] (2) Mixing: Put the weighed raw ...

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Abstract

The invention belongs to the technical field of coatings, and particularly discloses a solvent-free environment-friendly coating and a preparation method thereof, which comprises the following raw materials in percentage by mass: 50-60% of polyester resin and 2-10% of hydroxyalkyl amide, 15-25% of auxiliary materials, 10-15% of pigment and filler and 3-5% of nano calcium carbonate, 3% -5% of hollow glass beads and 0.02% -0.1% of a curing inhibitor, 0.1-0.5% of a lubricant, 0.5-2% of a flatting agent and 0.5-1% of benzoin, 0.5-1% of an ultraviolet absorbent and 0.5-1% of an anti-ultraviolet absorbent; and the auxiliary material comprises high-gloss barium sulfate, precipitated barium sulfate and calcium carbonate; the pigment filler comprises titanium dioxide and mica powder. According to the invention, the polyester resin is selected as the main raw material and is safe and non-toxic hydroxyalkyl amide (HAA)) is a curing agent, and nano calcium carbonate and hollow glass beads are added, a curing inhibitor and a lubricant, so that the problem that a pinhole phenomenon of an HAA system coating is easy to occur is solved, the comprehensive performance of the coating is improved, andthe dispersibility, leveling property and weather resistance are improved.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, and specifically discloses a solvent-free environment-friendly coating and a preparation method thereof. Background technique [0002] Powder coating is a solid powder coating that exists in the form of fine powder, which is transferred to the object to be coated in powder form, and is baked, melted and solidified to form a film. Powder coating is a new type of environmentally friendly decorative coating without solvent addition. Compared with solvent-based coatings, powdered powder coatings have great advantages in storage and transportation. [0003] At present, the curing agent of domestic polyester powder coatings is mainly triglycidyl isocyanurate (TGIC). The disadvantages are high toxicity, environmental damage and genotoxicity, which can stimulate human skin. In the actual production process, workers often have red and swollen eyes, bleeding nostrils, and skin blisters and ulcers....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03C09D7/61C09D7/63
CPCC08K2003/2241C08K2003/265C08K2201/011C08K2201/014C09D5/033C09D167/00C08K13/04C08K3/26C08K7/28C08K3/30C08K3/22C08K3/34
Inventor 宋小阳
Owner CHONGQING QICAIHONG CHEM
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