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Self-crosslinking waterborne wood lacquer emulsion and preparation method thereof

A water-based wood paint, self-crosslinking technology, applied in the direction of coating, can solve problems such as fire hazards, environmental pollution, harm to human health, etc., to achieve the effect of improving hot stickiness and cold brittleness, good UV resistance, and improving stability

Inactive Publication Date: 2018-04-10
GUANGDONG VALSPAR CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water-based wood coatings developed by these single water-based resins cannot meet people's requirements for high quality
[0004] Therefore, compared with the traditional solvent-based polyurethane coatings, a large amount of organic solvents are required in the synthesis process, resulting in high content of volatile organic compounds (VOC) in the product, which is easy to cause environmental pollution and endanger human health. can cause a fire hazard

Method used

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  • Self-crosslinking waterborne wood lacquer emulsion and preparation method thereof

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Effect test

Embodiment 1

[0023] The self-crosslinking water-based wood paint emulsion of this embodiment includes the following raw materials in parts by weight: 20 parts of modified acrylic emulsion, 25 parts of filler, 3 parts of sodium lauryl sulfate, 2 parts of nonylphenol polyoxyethylene ether, film-forming assistant 2 parts of agent, 1 part of defoamer;

[0024] Among them, the modified acrylic emulsion is a silica sol modified acrylic emulsion and a silicone modified acrylic emulsion according to the mass ratio of 1-3:1.3-2, and the silicone modified acrylic emulsion is a mixture of silane coupling agent, acrylic acid and pure water, Place in an ultrasonic disperser with a frequency of 35khz, a power of 500w, and ultrasonically disperse for 5 minutes to obtain a silicone-modified acrylic emulsion; the method for modifying the acrylic emulsion with silica sol is: disperse nano-silica particles in deionized water at high speed, Obtain silica sol, then add acrylic acid, disperse evenly, obtain sil...

Embodiment 2

[0031] The present embodiment self-crosslinking water-based wood paint emulsion includes the following raw materials in parts by weight: 40 parts of modified acrylic emulsion, 45 parts of filler, 8 parts of sodium lauryl sulfate, 6 parts of nonylphenol polyoxyethylene ether, film-forming assistant 5 parts of agent, 3 parts of defoamer;

[0032] Among them, the modified acrylic emulsion is a silica sol modified acrylic emulsion and a silicone modified acrylic emulsion according to the mass ratio of 1-3:1.3-2, and the silicone modified acrylic emulsion is a mixture of silane coupling agent, acrylic acid and pure water, Place in an ultrasonic disperser with a frequency of 40khz, a power of 800w, and ultrasonically disperse for 15 minutes to obtain a silicone-modified acrylic emulsion; the method for modifying the acrylic emulsion with silica sol is: disperse nano-silica particles in deionized water at high speed, Obtain silica sol, then add acrylic acid, disperse evenly, obtain s...

Embodiment 3

[0039] The self-crosslinking water-based wood paint emulsion of this embodiment includes the following raw materials in parts by weight: 30 parts of modified acrylic emulsion, 35 parts of filler, 6 parts of sodium lauryl sulfate, 4 parts of nonylphenol polyoxyethylene ether, film-forming assistant 3 parts of agent, 2 parts of defoamer;

[0040]Among them, the modified acrylic emulsion is a silica sol modified acrylic emulsion and a silicone modified acrylic emulsion according to the mass ratio of 1-3:1.3-2, and the silicone modified acrylic emulsion is a mixture of silane coupling agent, acrylic acid and pure water, Place in an ultrasonic disperser with a frequency of 38khz, a power of 650w, and ultrasonically disperse for 10 minutes to obtain a silicone-modified acrylic emulsion; the method for modifying the acrylic emulsion with silica sol is: disperse nano-silica particles in deionized water at high speed, Obtain silica sol, then add acrylic acid, disperse evenly, obtain si...

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Abstract

The invention provides a self-crosslinking waterborne wood lacquer emulsion and a preparation method thereof, and relates to the coating technical field. The self-crosslinking waterborne wood lacqueremulsion comprises the following raw materials: modified acrylic emulsion, a filler, lauryl sodium sulfate, nonylphenol polyoxyethylene ether, a film forming auxiliary agent and a defoaming agent. Theself-crosslinking waterborne wood lacquer emulsion has the advantages of high hardness of a paint film, good water resistance, good stability, safe use and no toxic or side effects, has the volatileorganic compound (VOC) content as low as 10 g / L, and is beneficial to human health.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a self-crosslinking water-based wood paint emulsion and a preparation method thereof. Background technique [0002] With the restriction of VOC emissions in coatings by environmental regulations and the public's emphasis on environmental pollution, environmentally friendly wood coatings have become the development trend of the coatings industry. The requirements of national laws and regulations on paint manufacturers and furniture manufacturers are gradually increasing. Since February 1, 2015, the state has imposed a 4% consumption tax on coating companies. In the field of furniture wood coatings, my country has begun to promote water-based wood coatings. Nitro-based paints with a high proportion of original usage are being quietly replaced by water-based coatings. However, my country's water-based wood coatings still have limitations in key technologies, resulting in a certai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D143/04C09D7/61C09D7/63C09D7/65
CPCC09D133/02C08K2201/011C08K2201/014C09D143/04C08L43/04C08K13/02C08K3/36C08K3/40C08K3/346C08K3/34C08K5/41C08K5/06C08L33/02
Inventor 黄宏亭高平
Owner GUANGDONG VALSPAR CHEM IND
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