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Modified acrylic ester external wall emulsion with high stain resistance and preparation method thereof

A technology of acrylate and butyl acrylate, which is applied in the field of modified acrylate high stain-resistant exterior wall emulsion and its preparation, which can solve the problems of poor performance, easy staining, and pulverization of exterior wall coatings, and achieve anti-oxidation performance Good, good adhesion, not easy to be oxidized

Inactive Publication Date: 2018-07-17
成都巴德富科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Poor performance of exterior wall coatings manifests as embrittlement, pulverization, and easy staining

Method used

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  • Modified acrylic ester external wall emulsion with high stain resistance and preparation method thereof
  • Modified acrylic ester external wall emulsion with high stain resistance and preparation method thereof

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preparation example Construction

[0032] A preparation method of the modified acrylate highly stain-resistant exterior wall emulsion, comprising the following steps:

[0033] 1) Under normal temperature and pressure, add polyethylene glycol and 0.02-0.5 parts of reactive emulsifier into the reaction kettle, heat up to 75-80°C, stir well, slowly drop in sodium silicate water glass, drop The time is 4-5h, the reaction temperature is 75-80°C, keep the temperature for 1h after dripping, then cool down to normal temperature, and get the modified water glass for later use;

[0034] 2) Under normal temperature and pressure, fully mix 15-30 parts of water, 0.02-0.5 parts of reactive emulsifier, and 0.05-1.5 parts of non-ionic emulsifier in the emulsification tank, and then add methyl methacrylate and butyl acrylate , methacrylic acid, and cross-linking monomers to make a pre-emulsion, stir for about 30 minutes, and set aside;

[0035] 3) Take 0.05-0.5 parts of ammonium persulfate and 0.5-1.5 parts of water to make a ...

Embodiment 1

[0041] A modified acrylate highly stain-resistant exterior wall emulsion, comprising the following raw materials in parts by weight: 30 parts of water, 50 parts of methyl methacrylate, 30 parts of butyl acrylate, 0.1 part of methacrylic acid, cross-linking monomer 0.1 part of body, 0.1 part of ammonium persulfate, 0.1 part of sodium bicarbonate, 0.1 part of reactive emulsifier, 0.1 part of nonionic emulsifier, 15 parts of polyethylene glycol, 20 parts of sodium silicate water glass, and 3 parts of ammonia water.

[0042] The crosslinking monomer is allyl methacrylate.

[0043] The reactive emulsifier is sodium 3-allyloxy-1-hydroxyl-1-propanesulfonate.

[0044] The nonionic emulsifier is alkyl polyoxyethylene ether LCN407.

[0045] The polyethylene glycol is PEG200.

[0046] The modulus of the sodium silicate water glass is between 3.5-4.5.

[0047] A preparation method of the modified acrylate highly stain-resistant exterior wall emulsion, comprising the following steps:

...

Embodiment 2

[0062] A modified acrylate highly stain-resistant exterior wall emulsion, comprising the following raw materials in parts by weight: 35 parts of water, 55 parts of methyl methacrylate, 35 parts of butyl acrylate, 1.5 parts of methacrylic acid, cross-linking monomer 2 parts of body, 1 part of ammonium persulfate, 0.3 parts of sodium bicarbonate, 1.5 parts of reactive emulsifier, 2 parts of nonionic emulsifier, 20 parts of polyethylene glycol, 25 parts of sodium silicate water glass, and 4 parts of ammonia water.

[0063] The crosslinking monomer is vinyltrimethoxysilane. The reactive emulsifier is sodium vinylsulfonate.

[0064] The nonionic emulsifier is alkyl polyoxyethylene ether LCN287. The polyethylene glycol is PEG200.

[0065] The modulus of the sodium silicate water glass is between 3.5-4.5.

[0066] A preparation method of the modified acrylate highly stain-resistant exterior wall emulsion, comprising the following steps:

[0067] 1) Under normal temperature and pr...

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Abstract

The invention discloses modified acrylic ester external wall emulsion with high stain resistance and a preparation method thereof. The modified acrylic ester external wall emulsion with the high stainresistance is prepared from, by weight, 30-45 parts of water, 50-60 parts of methyl methacrylate, 30-45 parts of butyl acrylate, 0.1-3 parts of methylacrylic acid, 0.1-3 parts of crosslinking monomers, 0.1-2 parts of ammonium persulfate, 0.1-0.5 part of sodium bicarbonate, 0.1-3 parts of reactive emulsifier, 0.1-3 parts of non-ionic emulsifier, 15-25 parts of polyethylene glycol, 20-35 parts of sodium silicate and 3-5 parts of ammonium hydroxide. According to the modified acrylic ester external wall emulsion with the high stain resistance and the preparation method thereof, sodium silicate isadopted to modify acrylic ester, the external wall emulsion with the ultrahigh stain resistance is prepared, and the external wall emulsion has an ultrahigh stain resisting effect.

Description

technical field [0001] The invention relates to a modified acrylate highly stain-resistant exterior wall emulsion and a preparation method thereof. Background technique [0002] With the promulgation of national environmental protection policies and related laws, people's awareness of environmental protection has gradually strengthened, and water-based coatings have become the darling of the coatings market. Traditional acrylate water-based coatings can be used in the construction industry as interior and exterior wall coatings and roof waterproofing materials. Acrylic latex film has high transparency and good flexibility, but it has poor performance in terms of weather resistance, hardness, water resistance, and scratch resistance. At present, my country's exterior wall coatings generally require a weather resistance of 8-10 years. In actual projects, some coatings have a service life of only 3-4 years or even shorter, and water-based exterior wall coatings show aging and ...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D7/61C08F220/14C08F220/18C08F220/06C08F220/40C08F216/14C08F2/26C08F2/30
CPCC08F2/26C08F2/30C08F220/14C08K3/34C09D5/16C09D5/1618C09D133/064C08F220/1804C08F220/06C08F220/40C08F216/1475
Inventor 刘军范理杨文涛
Owner 成都巴德富科技有限公司
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