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Preparation method of low-VOC anti-cracking environment-friendly building waterproof coating

A waterproof and environmentally friendly technology for buildings, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve problems such as poor crack resistance and scratch resistance, and achieve long-lasting antibacterial effects, good elasticity, and anti-corrosion Good anti-mildew effect

Inactive Publication Date: 2018-12-21
ANHUI KUAILAI WATERPROOFING & ANTI CORROSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the existing low-VOC environmental protection building waterproof coating has poor crack resistance and scratch resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of low VOC anti-cracking environmental protection building waterproof coating, comprising the following steps:

[0030] (1) Mix glucose aqueous solution, NaOH aqueous solution and β-cyclodextrin aqueous solution at a constant speed under heating in a water bath, raise the temperature to 60°C, and drop AgNO at a rate of 20 drops / min 3 The aqueous solution is reacted until the solution turns from colorless to yellow;

[0031] (2) Cool the material in step (1) to room temperature, filter to retain the precipitate, rinse with ethanol and deionized water several times to remove impurities, dry at 60°C in vacuum, and grind to obtain β-cyclodextrin-modified silver nanoparticles;

[0032] (3) Put chitosan in a petri dish, add a 2% acetic acid solution by volume and stir it with a glass rod to dissolve it, place it in an oven at 50°C for 12 hours and dry it;

[0033] (4) cooling to room temperature after the chitosan gained in step (3) is taken out, is plac...

Embodiment 2

[0046] A preparation method of low VOC anti-cracking environmental protection building waterproof coating, comprising the following steps:

[0047] (1) Mix glucose aqueous solution, NaOH aqueous solution and β-cyclodextrin aqueous solution at a constant speed under heating in a water bath, raise the temperature to 70°C, and drop AgNO at a rate of 20 drops / min 3 The aqueous solution is reacted until the solution turns from colorless to yellow;

[0048] (2) Cool the material in step (1) to room temperature, filter to retain the precipitate, rinse with ethanol and deionized water several times to remove impurities, dry at 60°C in vacuum, and grind to obtain β-cyclodextrin-modified silver nanoparticles;

[0049] (3) Put chitosan in a petri dish, add a 2% acetic acid solution by volume and stir it with a glass rod to dissolve it, place it in an oven at 50°C for 12 hours and dry it;

[0050] (4) cooling to room temperature after the chitosan gained in step (3) is taken out, is plac...

Embodiment 3

[0063] A preparation method of low VOC anti-cracking environmental protection building waterproof coating, comprising the following steps:

[0064] (1) Mix glucose aqueous solution, NaOH aqueous solution and β-cyclodextrin aqueous solution at a constant speed under heating in a water bath, raise the temperature to 65°C, and add AgNO dropwise at a rate of 20 drops / min 3 The aqueous solution is reacted until the solution turns from colorless to yellow;

[0065] (2) Cool the material in step (1) to room temperature, filter to retain the precipitate, rinse with ethanol and deionized water several times to remove impurities, dry at 60°C in vacuum, and grind to obtain β-cyclodextrin-modified silver nanoparticles;

[0066] (3) Put chitosan in a petri dish, add a 2% acetic acid solution by volume and stir it with a glass rod to dissolve it, place it in an oven at 50°C for 12 hours and dry it;

[0067] (4) cooling to room temperature after the chitosan gained in step (3) is taken out,...

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PUM

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Abstract

The invention discloses a preparation method of a low-VOC anti-cracking environment-friendly building waterproof coating. A compound polymer emulsion with the ratio of an environment-friendly pure acrylic emulsion to an environment-friendly VAE emulsion to a non-soap organic silicone rubber emulsion being 7:1:2 is selected. An antibacterial and mildewproof complex inoculant compounded with modified chitosan and beta-cyclodextrin modified silver nano-particles, modified basalt fibers and other effective auxiliaries are added to make synergistic interaction. Thus, the obtained coating has the advantages of low VOC content, good elasticity, high-temperature and low-temperature resistance, excellent anti-cracking and anti-permeability performance, better rheological performance, good anti-corrosion and anti-mildew effect, high strength, better scratch resistance, and the like.

Description

technical field [0001] The invention belongs to the technical field of waterproof coatings, and in particular relates to a preparation method of a low-VOC anti-cracking environmental protection building waterproof coating. Background technique [0002] Architectural waterproof coating is an important waterproof material in the market at present. According to its film-forming base material, it can be divided into asphalt, polymer modified asphalt, synthetic polymer, inorganic cement, polymer cement, etc. Types of. Among them, synthetic polymers can be divided into two types: solvent-based and water-emulsion-type. Water-emulsion-type one-component waterproof coatings are easy to operate and can be constructed on relatively humid leveling layers, and they can be produced, stored, transported, and constructed. And other links are relatively safe and have been widely used. [0003] In recent years, with the accelerated deterioration of the atmospheric environment and the increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D131/04C09D183/04C09D5/14C09D7/61C09D7/62
CPCC09D133/04C08K2003/0806C08K2003/2241C08K2201/011C08L2201/08C08L2205/035C09D5/14C09D7/61C09D7/62C09D7/70C08L31/04C08L83/04C08L5/08C08K13/06C08K3/08C08K9/04C08K7/10C08K3/22C08K3/34
Inventor 蒋能
Owner ANHUI KUAILAI WATERPROOFING & ANTI CORROSION
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