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Environmental-protection latexpaint with humidity adjustment

A latex paint and humidity control technology, applied in latex paint, coatings, etc., can solve the problems of lack of indoor humidity adjustment, condensation on the wall, and inability to meet the comfort of the indoor environment, so as to improve the appearance and performance, and adjust the humidity Long-lasting effect with reduced dosage

Inactive Publication Date: 2007-06-13
王美荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many types of interior wall latex paints on the market with different functions. Among them, the latex paints that use water as a solvent are mainly composed of water, emulsion, pigments and fillers, and various additives. It is non-toxic, non-polluting, water-resistant, and scrub-resistant. It is favored by consumers due to its advantages, and is one of the most widely used decorative materials. It is also called environmentally friendly latex paint. However, these paints lack the function of regulating indoor humidity and cannot meet people's ever-increasing requirements for indoor environment comfort.
After decorating the room with ordinary latex paint, when the indoor relative humidity is high, condensation will occur on the wall, and when the indoor relative humidity is low, people will feel that the air is dry and uncomfortable
After retrieval, no environmentally friendly latex paint capable of regulating indoor humidity and its production method have been found.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] First add 10kg of water into the reactor, add 0.3kg of carboxymethylcellulose, stir and heat to 50±2°C, after the carboxymethylcellulose is completely dissolved, add 10kg of diatomaceous earth, and stir at a high speed (the speed is controlled at 1000 rpm), stirred for 15 minutes, added polyvinyl acetate emulsion 54kg, the stirring speed was controlled at 500 rpm, stirred for 10 minutes, then added 4kg of titanium dioxide, 20kg of light calcium carbonate, after stirring evenly, added hexametaphosphoric acid Sodium 0.2kg. Go to ball mill and grind for 4 hours, shake and pack to get the product of the present invention.

Embodiment 2

[0015] First add 10kg of water into the reactor, add 0.3kg of carboxymethylcellulose, stir and heat to 50±2°C, after the carboxymethylcellulose is completely dissolved, add 13kg of diatomaceous earth, stir at high speed (control the speed at 1000 rpm), stirred for 15 minutes, added 55kg of the above-mentioned polyacrylate emulsion, the stirring speed was controlled at 500 rpm, stirred for 10 minutes, then added 5kg of titanium dioxide, 21kg of light calcium carbonate, after stirring evenly, added hexametaphosphoric acid Sodium 0.2kg. Go to ball mill and grind for 4 hours, shake and pack to get the product of the present invention.

Embodiment 3

[0017] (1) Add 90kg of water into the reactor, then add 12kg of polyvinyl alcohol, stir and heat up to 94-95°C, after the polyvinyl alcohol is completely dissolved, cool down to 80-81°C, slowly add the weight concentration of 35% under stirring 0.5 kg of hydrochloric acid, 2.5 kg of formaldehyde with a weight concentration of 37%, reacted at a constant temperature of 80° C. for 1 hour. Then add 2kg of urea (dissolved with 4kg of warm water first), react at 80±2°C for 1 hour, cool down to room temperature, adjust pH (7-7.5) with aqueous sodium hydroxide solution to obtain modified polyvinyl formal.

[0018] (2) First add 11kg of water into the reactor, add 0.3kg of carboxymethylcellulose, stir and heat to 50±2°C, after the carboxymethylcellulose is completely dissolved, add 15kg of diatomite, and stir at a high speed (speed Control at 1000 rpm), stir for 15 minutes, add 56 kg of the above-mentioned modified polyvinyl formal, control the stirring speed at 500 rpm, stir for 10 mi...

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PUM

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Abstract

This invention is related to a kind of humidity-controlling environment protective latex paint with the weight ratios of the crude materials as follows: 54~56 portions of agglomerant, 10~15 portions of diatomite, 20~22 portions of light calcium carbonate, 4~6 portions of titanium white powder, 0.2~0.3 portion of sodium hexametahposphate, 0.3~0.4 portion of carboxymethyl cellulose and 10~11 portions of water. The positive effects of the invention lie in that: first, due to the addition of diatomite and super-absorbent polymer to the formation of the latex paint, the paint film has some hygroscopicity which can adjust the air humidity; second, the additive light calcium carbonate belonging to the organic and inorganic compound mildew preventives, it can restrain microbe such as bacteria from growing at a long time, thus enhance the beauty and service performance of the film coating and prolong its decorative and humidity-controlling function; finally, the said agglomerant has effect of admitting the vapor and can be a low-cost thickener so as to reduce the use of the organic thickener and cut down the costs.

Description

technical field [0001] The invention relates to a chemical coating, in particular to an environment-friendly latex paint capable of regulating indoor humidity. Background technique [0002] At present, there are many types of interior wall latex paints on the market with different functions. Among them, the latex paints that use water as a solvent are mainly composed of water, emulsion, pigments and fillers, and various additives. It is non-toxic, non-polluting, water-resistant, and scrub-resistant. It is favored by consumers due to its advantages, and is one of the most widely used decorative materials. It is also called environmentally friendly latex paint. However, these paints lack the function of regulating indoor humidity and cannot meet people's ever-increasing requirements for indoor environment comfort. . After decorating the room with ordinary latex paint, when the indoor relative humidity is high, condensation will occur on the wall, and when the indoor relative ...

Claims

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Application Information

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IPC IPC(8): C09D129/14C09D5/02
Inventor 王美荣
Owner 王美荣
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