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Low-VOC (volatile organic compounds) anti-scratch transparent matte varnish and preparation method thereof

A matte varnish, anti-scratch technology, applied in the field of coatings, can solve the general weather resistance problems of aldehyde and ketone resins, and achieve the effect of improving scratch resistance, ensuring hardness and toughness, and excellent high-hardness paint film

Inactive Publication Date: 2015-12-16
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, aldehyde and ketone resins are easy to cause orange peel in varnishes due to their quick drying properties, so they should be added with caution, and the weather resistance of aldehyde and ketone resins is average.

Method used

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  • Low-VOC (volatile organic compounds) anti-scratch transparent matte varnish and preparation method thereof
  • Low-VOC (volatile organic compounds) anti-scratch transparent matte varnish and preparation method thereof
  • Low-VOC (volatile organic compounds) anti-scratch transparent matte varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The low-VOC anti-scratch transparent matte varnish of this embodiment is formed by combining the resin paint of component A and the curing agent of component B in a weight ratio of 2:1;

[0047] Wherein, the component A resin paint comprises the following components and parts by weight:

[0048]

[0049] Described component B curing agent comprises following components and weight part content:

[0050] N339070 copies,

[0051] 30 parts of solvent B.

[0052] Solvent A is formed by mixing 5 parts of isobutyl acetate, 5 parts of propylene glycol methyl ether acetate and 3 parts of DBE (divalent ester).

[0053] Solvent B is prepared by mixing 20 parts of isobutyl acetate and 10 parts of DBE (dibasic acid ester).

[0054] The preparation method of the low VOC anti-scratch transparent matte varnish of the present embodiment specifically comprises the following steps:

[0055] (1) Add solvent A to the dispersing kettle in parts by weight, add alkyd resin and hydroxyacry...

Embodiment 2

[0062] The low-VOC anti-scratch transparent matte varnish of this embodiment is formed by combining the resin paint of component A and the curing agent of component B in a weight ratio of 2:1;

[0063] Wherein, the component A resin paint comprises the following components and parts by weight:

[0064]

[0065]

[0066] Described component B curing agent comprises following components and weight part content:

[0067] N339065 copies,

[0068] 35 parts of solvent B.

[0069] Solvent A and solvent B are mixed solvents composed of isobutyl acetate, propylene glycol methyl ether acetate and divalent ester in a weight ratio of 2:1:1.

[0070] The preparation method of the low VOC anti-scratch transparent matte varnish of the present embodiment specifically comprises the following steps:

[0071] (1) Add solvent A to the dispersing kettle in parts by weight, add alkyd resin and hydroxyacrylic resin and stir evenly, then add matting powder and dispersant, stir at 400 rpm for...

Embodiment 3

[0075] The low-VOC anti-scratch transparent matte varnish of this embodiment is formed by combining the resin paint of component A and the curing agent of component B in a weight ratio of 2:1;

[0076] Wherein, the component A resin paint comprises the following components and parts by weight:

[0077]

[0078] Described component B curing agent comprises following components and weight part content:

[0079] N339055 copies,

[0080] 20 parts of solvent B.

[0081] Solvent A and solvent B are mixed solvents composed of isobutyl acetate, propylene glycol methyl ether acetate and divalent ester in a weight ratio of 2:1:1.

[0082] The preparation method of the low VOC anti-scratch transparent matte varnish of the present embodiment specifically comprises the following steps:

[0083] (1) Add solvent A into the dispersing kettle in parts by weight, add alkyd resin and hydroxyacrylic resin and stir evenly, then add matting powder and dispersant, stir at 500 rpm for 25 minute...

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Abstract

The invention relates to low-VOC (volatile organic compounds) anti-scratch transparent matte varnish and a preparation method thereof. The matte varnish is made by combining a component A resin paint and a component B solidifying agent according to a weight ratio: 2:1, wherein the component A resin paint comprises 50-60 parts of alkyd resin, 10-30 parts of carboxyl acrylic resin, 0.3-1 part of a dispersant, 1-5 parts of an anti-settling agent, 0.3-0.7 part of a defoaming agent, 0.1-0.8 part of a leveling agent, 3-8 parts of matting powder, and 5-15 parts of a solvent A. The component B solidifying agent comprises 55-70 parts of a solidifying agent and 20-35 parts of a solvent. Compared with the prior art, the matte varnish and the preparation method thereof have the advantages that the preparation method is simple, a selection range of materials is wide, and the matte varnish prepared provides smooth surface, has high hardness, good scratch resistance, high transparency, good clarity and interlayer adhesion and features good hardness, good impact resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of coatings, and relates to a matte varnish and a preparation method thereof, in particular to a low-VOC scratch-resistant transparent matte varnish and a preparation method thereof. Background technique [0002] As an important coating, varnish has the functions of decoration and protection, and can be used for coating furniture, floors, doors and windows, and automobiles. However, with people's emphasis on environmental protection and the increasingly stringent environmental protection laws and regulations of various countries, paint manufacturers and paint users pay special attention to the environmental protection requirements of paint, organic solvents and the smell of finished products after painting. [0003] Most of the existing matte varnishes have problems such as poor scratch resistance and high VOC, which makes the matte varnish products have a heavy, pungent and unpleasant smell when used, and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12C08G18/79C08G18/67C08G18/62
Inventor 朱忠敏叶小明阮荣光
Owner DONGLAI COATING TECH SHANGHAI
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