CN1978561A - Environmental-protection latexpaint with humidity adjustment - Google Patents

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

Environmental protection moisture adjustable emulsion paint and production method thereof

Technical field

The present invention relates to a kind of chemistry painting industry, especially can regulate the environment friendly emulsion paint of indoor humidity.

Background technology

Interiro wall latex paint is of a great variety in the market, function is different, wherein with the emulsion paint of water as solvent, mainly form by water, emulsion, color stuffing and various auxiliary agent, it has advantages such as nontoxic, pollution-free, water-fast, scrubbing resistance and is favored by the human consumer, is one of wider finishing material of present range of application, claims environment friendly emulsion paint again, but these coating all lack the effect of regulating indoor humidity, can't satisfy people to the ever-increasing requirement of indoor environment comfortableness.Behind generic latex lacquer decoration room, when indoor relative humidity was higher, the condensation phenomenon took place on the metope, when indoor relative humidity was low, people can think that dry air is uncomfortable.By retrieval, the environment friendly emulsion paint and the production method thereof of not finding to regulate indoor humidity yet.

Summary of the invention

The objective of the invention is to satisfy people to the ever-increasing requirement of indoor environment comfortableness, a kind of environment friendly emulsion paint that can regulate indoor humidity is provided.

For realizing that the technical scheme that the object of the invention is taked is: a kind of environmental protection moisture adjustable emulsion paint, the weight proportion of each material component is:

Binding agent 54-56 part, diatomite 10-15 part, light calcium carbonate 20-22 part, titanium dioxide 4-6 part, Sodium hexametaphosphate 99 0.2-0.3 part, carboxymethyl cellulose 0.3-0.4 part, water 10-11 part.

Wherein binding agent is aqueous polyvinyl acetate emulsion, polyacrylate dispersion or modified polyvinyl formal.

Wherein modified polyvinyl formal is prepared by following method: the water of formula ratio is added in the reactor, add polyvinyl alcohol again, stir and be warming up to 94-95 ℃, after treating that polyvinyl alcohol dissolves fully, be cooled to 80-81 ℃, stir down slowly adding hydrochloric acid, formaldehyde, 80 ℃ of reactions of constant temperature 1 hour.Add then with 2 times of amount warm water dissolved urea, reacted 1 hour down at 80 ± 2 ℃, reduce to room temperature, regulating PH with aqueous sodium hydroxide solution is 7-7.5, promptly gets modified polyvinyl formal;

Above-described each component weight percentage is: water 80-90 part, and polyvinyl alcohol 10-12 part, weight concentration is 35% hydrochloric acid 0.4-0.5 part, weight concentration is 37% formaldehyde 2-2.5 part, urea 1-2 part, sodium hydroxide is an amount of;

The production method of environmental protection moisture adjustable emulsion paint comprises the steps:

Water with formula ratio adds in the reactor earlier, adds carboxymethyl cellulose, stirs, is heated to 50 ± 2 ℃, after treating that carboxymethyl cellulose dissolves fully, add diatomite, rotating speed is controlled at 1000 rev/mins, high-speed stirring 15 minutes, add binding agent, stirring velocity is controlled at 500 rev/mins, stirs 10 minutes, adds titanium dioxide, light calcium carbonate again, after stirring, add Sodium hexametaphosphate 99.Change ball mill over to and milled 4 hours, discharging, packing are promptly.

Positively effect of the present invention is: 1, owing to added diatomite and super absorbent polymer in latex paint formulation, make paint film that certain moisture be arranged, reach the purpose of regulating indoor air humidity; 2, because the light calcium carbonate that adds in the prescription belongs to organic and the inorganic compounding mould inhibitor, it can the long term inhibition bacterium etc. microbial growth, improved the attractive in appearance and use properties of paint film, make decoration, the humidity conditioning function of filming more lasting; 3, the existing effect of taking water vapour in of binding agent still is a kind of thickening material of cheapness, has reduced the consumption of organic thickening agent, has reduced cost.

Embodiment

Embodiment 1:

Earlier 10kg water is added in the reactor, add carboxymethyl cellulose 0.3kg, stir, be heated to 50 ± 2 ℃, after treating that carboxymethyl cellulose dissolves fully, add diatomite 10kg, high-speed stirring (rotating speed is controlled at 1000 rev/mins) stirred 15 minutes, add aqueous polyvinyl acetate emulsion 54kg, stirring velocity is controlled at 500 rev/mins, stirs 10 minutes, adds titanium dioxide 4kg, light calcium carbonate 20kg again, after stirring, add Sodium hexametaphosphate 99 0.2kg.Change ball mill over to and milled 4 hours, go out to tremble, pack and promptly get product of the present invention.

Embodiment 2:

Earlier 10kg water is added in the reactor, add carboxymethyl cellulose 0.3kg, stir, be heated to 50 ± 2 ℃, after treating that carboxymethyl cellulose dissolves fully, add diatomite 13kg, high-speed stirring (rotating speed is controlled at 1000 rev/mins) stirred 15 minutes, add above-mentioned polyacrylate dispersion 55kg, stirring velocity is controlled at 500 rev/mins, stirs 10 minutes, adds titanium dioxide 5kg, light calcium carbonate 21kg again, after stirring, add Sodium hexametaphosphate 99 0.2kg.Change ball mill over to and milled 4 hours, go out to tremble, pack and promptly get product of the present invention.

Embodiment 3:

(1) 90kg water is added in the reactor, add polyvinyl alcohol 12kg again, stir and be warming up to 94-95 ℃, after treating that polyvinyl alcohol dissolves fully, be cooled to 80-81 ℃, stirring slow down adding weight concentration is that 35% hydrochloric acid 0.5kg, weight concentration are 37% formaldehyde 2.5kg, 80 ℃ of reactions of constant temperature 1 hour.Add urea 2kg (earlier with the dissolving of 4kg warm water) then, reacted 1 hour down, reduce to room temperature, regulate PH (7-7.5) with aqueous sodium hydroxide solution and promptly get modified polyvinyl formal at 80 ± 2 ℃.

(2) earlier 11kg water is added in the reactor, add carboxymethyl cellulose 0.3kg, stir, be heated to 50 ± 2 ℃, after treating that carboxymethyl cellulose dissolves fully, add diatomite 15kg, high-speed stirring (rotating speed is controlled at 1000 rev/mins) stirred 15 minutes, add above-mentioned modified polyvinyl formal 56kg, stirring velocity is controlled at 500 rev/mins, stirs 10 minutes, adds titanium dioxide 6kg, light calcium carbonate 22kg again, after stirring, add Sodium hexametaphosphate 99 0.3kg.Change ball mill over to and milled 4 hours, discharging, packing promptly get product of the present invention.

Claims (4)

1, a kind of environmental protection moisture adjustable emulsion paint, the weight proportion of each material component is:

Binding agent 54-56 part, diatomite 10-15 part, light calcium carbonate 20-22 part, titanium dioxide 4-6 part, Sodium hexametaphosphate 99 0.2-0.3 part, carboxymethyl cellulose 0.3-0.4 part, water 10-11 part.

2, environmental protection moisture adjustable emulsion paint as claimed in claim 1, wherein binding agent is aqueous polyvinyl acetate emulsion, polyacrylate dispersion or modified polyvinyl formal.

3, such as claim 2 the spouse environmental protection moisture adjustable emulsion paint, wherein modified polyvinyl formal is prepared by following method: the water of formula ratio is added in the reactor, add polyvinyl alcohol again, stirring is warming up to 94-95 ℃, after treating that polyvinyl alcohol dissolves fully, be cooled to 80-81 ℃, stir down slowly adding hydrochloric acid, formaldehyde, 80 ℃ of reactions of constant temperature 1 hour.Add then with 2 times of amount warm water dissolved urea, reacted 1 hour down at 80 ± 2 ℃, reduce to room temperature, regulating PH with aqueous sodium hydroxide solution is 7-7.5, promptly gets modified polyvinyl formal;

Above-described each component weight percentage is: water 80-90 part, and polyvinyl alcohol 10-12 part, weight concentration is 35% hydrochloric acid 0.4-0.5 part, weight concentration is 37% formaldehyde 2-2.5 part, urea 1-2 part, sodium hydroxide is an amount of.

4, the production method of environmental protection moisture adjustable emulsion paint as claimed in claim 1 or 2 comprises the steps:

Water with formula ratio adds in the reactor earlier, adds carboxymethyl cellulose, stirs, is heated to 50 ± 2 ℃, after treating that carboxymethyl cellulose dissolves fully, add diatomite, rotating speed is controlled at 1000 rev/mins, high-speed stirring 15 minutes, add binding agent, stirring velocity is controlled at 500 rev/mins, stirs 10 minutes, adds titanium dioxide, light calcium carbonate again, after stirring, add Sodium hexametaphosphate 99.Change ball mill over to and milled 4 hours, discharging, packing are promptly.