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Exterior wall fireproofing coating free of antiseptic mildew inhibitor, and preparation method thereof

A technology for anti-corrosion and anti-fungal agents and fire-resistant coatings, which is applied in fire-resistant coatings, anti-fouling/underwater coatings, paints containing biocides, etc., and can solve the problem that the performance of anti-corrosion and anti-fungal agents is easily affected by the environment and skin irritation , latex paint scrapping and other issues, to achieve the effect of good hand feeling, improved compatibility and excellent fire resistance

Pending Publication Date: 2020-03-24
ANHUI SKSHU PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Microorganisms will cause various problems to latex paint, such as viscosity drop, odor, demulsification, etc., which will lead to the scrapping of latex paint
In order to avoid the corruption and mildew after the production and storage of the paint and the construction on the wall, the current exterior wall paint usually adopts the method of adding organic preservatives and anti-fungal agents, but most of the preservatives and anti-fungal agents exist in varying degrees and the performance is vulnerable. Disadvantages of environmental impact, skin irritation

Method used

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  • Exterior wall fireproofing coating free of antiseptic mildew inhibitor, and preparation method thereof
  • Exterior wall fireproofing coating free of antiseptic mildew inhibitor, and preparation method thereof
  • Exterior wall fireproofing coating free of antiseptic mildew inhibitor, and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0072] The present invention also provides a method for preparing an exterior wall fireproof coating without adding an anticorrosive and antifungal agent in the above solution, which includes the following steps in sequence:

[0073] S1 First rotation mixing: Add bentonite, hydroxyethyl cellulose and polycarboxylate sodium salt type dispersant to water while rotating at 350-550r / min, and then stir for 3 to 5 minutes to obtain the first mixture;

[0074] S2 Second rotation mixing: After increasing the speed of the first mixture to 800~1000r / min, add 800 mesh heavy calcium, 700 mesh heavy calcium, diatomaceous earth, calcined kaolin, 1250 mesh talc, and then increase the speed again Disperse for 15-20min to 1500~1800r / min to obtain the second mixture;

[0075] S3 third rotation mixing: continue to mix the second mixture at a speed of 1500~1800r / min, when the fineness of the second mixture is ≤50μm, reduce the speed to 1000~1200r / min, then add emulsion and eliminate The foaming agent a...

Embodiment 1

[0083] For exterior wall fireproof paint without adding anticorrosive and antifungal agent, the specific preparation method is as follows:

[0084] S1 First rotation mixing: Add 24 parts by weight of water to the dispersion tank and add 0.2 parts by weight of bentonite, 0.2 parts by weight of hydroxyethyl cellulose and 0.5 parts by weight of sodium polycarboxylate in turn while rotating at 350r / min. After the dispersant, stir for 5 minutes to obtain the first mixture;

[0085] S2 Second rotation mixing: After increasing the speed of the first mixture to 800r / min, add 10 parts by weight of 800 mesh heavy calcium, 3 parts by weight of 700 mesh heavy calcium, 4 parts by weight of diatomaceous earth, and 6 parts by weight of calcined kaolin. , After 2 parts by weight of 1250 mesh talc, increase the speed again to 1500r / min and disperse for 15min to obtain the second mixture;

[0086] S3 third rotation mixing: continue to mix the second mixture at a speed of 1500r / min, when the fineness ...

Embodiment 2

[0088] The external wall fireproof coating without adding anticorrosive and antifungal agent, the specific preparation method is the following steps: the others are the same as in Example 1, the difference is:

[0089] In step S1, 0.2 parts by weight of bentonite, 0.2 parts by weight of hydroxyethyl cellulose, 1.2 parts by weight of pH regulator, 0.3 parts by weight of antifoaming agent, and 0.3 parts by weight of wetting agent are sequentially added while rotating at 350 r / min. And 0.5 parts by weight of polycarboxylate sodium salt type dispersant;

[0090] In step S2, after increasing the rotation speed of the first mixture to 800r / min, add 10 parts by weight of 800 mesh heavy calcium, 13 parts by weight of titanium dioxide, 3 parts by weight of 700 mesh heavy calcium, 4 parts by weight of diatomaceous earth, and 6 parts by weight. Parts calcined kaolin, 2 parts by weight 1250 mesh talc;

[0091] In step S3, after the rotation speed reaches 1000r / min, 0.2-0.3 parts by weight of th...

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Abstract

The invention relates to a coating, and concretely relates to an exterior wall fireproofing coating free of an antiseptic mildew inhibitor, and a preparation method thereof. The fireproofing coating comprises potassium silicate, ethylene glycol, 800-mesh coarse whiting, 700-mesh coarse whiting, calcined kaolin, 1250-mesh talcum powder, bentonite, diatomite, hydroxyethyl cellulose and a sodium polycarboxylate type dispersing agent. The preparation method comprises the following steps: adding the bentonite, hydroxyethyl cellulose and the sodium polycarboxylate type dispersing agent at a speed of350-550 r / min; and adding the 800-mesh coarse whiting, 700-mesh coarse whiting, diatomite, calcined kaolin and 1250-mesh talcum powder at a speed of 800-1000 r / min, and adding an emulsion, the ethylene glycol and the potassium silicate at a speed of 1000-1200 r / min. The potassium silicate is added to adjust the pH value of the coating, so that the exterior wall fireproofing coating inhibits growth and propagation of microorganisms such as bacteria and fungi without adding the antiseptic mildew inhibitor.

Description

Technical field [0001] The invention relates to a fire-proof paint, in particular to a fire-proof paint for exterior walls without adding an anticorrosive and antifungal agent and a preparation method thereof. Background technique [0002] Microorganisms can cause various problems to latex paint, such as decreased viscosity, odor, demulsification, etc., leading to scrap latex paint. In order to avoid corruption and mildew after paint production and storage and construction on the wall, the current exterior wall paint usually adopts the method of adding organic preservatives and antifungal agents, but most of the preservatives and antifungal agents have varying degrees of presence and performance. The disadvantage of environmental impact and irritation to the skin. In the coating industry, different anti-corrosion and anti-mildew components are usually used to mix and match in different proportions to complement each other to achieve the desired effect. [0003] At the same time, ...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D5/14C09D5/18C09D5/16C09D7/61C09D7/80
CPCC08K2003/265C08K2201/014C08L2201/02C08L2205/035C09D5/14C09D5/1687C09D5/18C09D125/14C09D7/80C08L1/284C08K13/04C08K7/26C08K3/34C08K5/053C08K3/26C08K3/346
Inventor 洪杰兰云峰林朋韩哲兵
Owner ANHUI SKSHU PAINT CO LTD
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