CN103865335A - Wall paint and preparation method thereof - Google Patents
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- CN103865335A CN103865335A CN201410128347.4A CN201410128347A CN103865335A CN 103865335 A CN103865335 A CN 103865335A CN 201410128347 A CN201410128347 A CN 201410128347A CN 103865335 A CN103865335 A CN 103865335A
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Abstract
The invention relates to the field of building materials and particularly relates to wall paint and a preparation method thereof. The wall paint comprises the following raw material components in parts by mass: 15-25 parts of deionized water, 3-5 parts of pigment dispersing agent, 1-3 parts of bactericide, 2-6 parts of PH regulator, 4-9 parts of defoaming agent, 10-20 parts of pigment, 20-35 parts of inorganic filler, 15-25 parts of air purifying emulsion, 4-10 parts of nanometer titanium dioxide/diatomite composite material and 2-4 parts of thickening agent. Compared with the wall paint in the prior art, the wall paint provided by the invention has the advantages that nanometer titanium dioxide/diatomite composite material is used as a photocatalyst material added into a coating, so that the problem that nanometer titanium dioxide is easily conglobated is solved, the nanometer performance of nanometer titanium dioxide can not be lost, and furthermore, the capability of nanometer titanium dioxide for absorbing toxic and harmful substances is enhanced.
Description
Technical field
The present invention relates to building material field, in particular to a kind of wall paint and preparation method thereof.
Background technology
In recent years, along with the fast development of scientific-technical progress and modern industry, environmental problem is on the rise, and the mankind pay close attention to health more, along with the requirement that improves gradually the feature of environmental protection of human consumer to coating of environmental consciousness is more and more higher.
The traditional coating that most of traditional coating enterprise produces can not meet human consumer's requirement far away, thereby causes losing nanometer performance and have influence on the ability of its absorption hazardous and noxious substances because the nano silicon photocatalyst product adding in traditional coating itself easily occurs to reunite.
Summary of the invention
The object of the present invention is to provide a kind of wall paint and preparation method thereof, to solve the above problems.
The invention provides a kind of wall paint, its starting material comprise following component according to the mass fraction: deionized water 15-25 part, pigment dispersing agent 3-5 part, sterilant 1-3 part, PH conditioning agent 2-6 part, defoamer 4-9 part, pigment 10-20 part, mineral filler 20-35 part, clean taste emulsion 15-25 part, nano titanium dioxide/diatomite matrix material 4-10 part, thickening material 2-4 part.
Wall paint provided by the invention, compared with wall paint of the prior art, it adopts nano titanium dioxide/diatomite matrix material to be added among coating as photocatalyst material, solve nano titanium oxide the problem of reuniting has easily occurred, make it can not lose nanometer performance, and then promoted the ability of its absorption hazardous and noxious substances.
Preferably, described starting material comprise following component according to the mass fraction: deionized water 15-20 part, pigment dispersing agent 3-4 part, sterilant 1-2 part, PH conditioning agent 2-5 part, defoamer 4-6 part, pigment 10-15 part, mineral filler 20-30 part, clean taste emulsion 15-20 part, nano titanium dioxide/diatomite matrix material 4-8 part, thickening material 2-3 part.
Wherein, the preparation method of nano titanium dioxide/diatomite matrix material is: classified starting material diatom soil and acid cleaning process are purified, take purify smart diatomite as carrier, take titanium tetrachloride as presoma, take hydrochloric acid, ammonium sulfate, volatile salt as assistant agent, adopt hydrolytic precipitation method synthesis of nano titanium dioxide/diatomite composite particles, composite particles after filtration, after washing, dry, calcining, obtain finished product nano titanium dioxide/diatomite matrix material.
The index that the nano titanium dioxide/diatomite matrix material of preparing reaches is as follows: nano titanium oxide massfraction is at 30-50%, the particle diameter of nano titanium oxide is no more than 50nm, the water ratio of matrix material is no more than 2%, and pH value is 6-8, and tap density is no more than 0.6g/cm
3, whiteness is at 85-95%, and oil absorbency is no more than 150%.
What in matrix material, mainly play the effect of photocatalysis Decomposition hazardous and noxious substances is nano titanium oxide, the less surface-area of particle diameter of nano titanium oxide is larger, its light-absorbing ability is stronger, the duration of service of material is more lasting, nano titanium oxide is as the main component in matrix material, massfraction can not be too high also should not be too low, otherwise can have influence on the photocatalysis performance of matrix material.In addition, the pH value of matrix material should be alkalescence, can under acidic conditions, easily not be corroded because of material like this.
Preferably, described pigment dispersing agent is one or both in Sodium hexametaphosphate 99, sodium pyrosulfate.
Preferably, described mineral filler is one or more in talcum powder, dicalcium powder, kaolin, china clay.
Preferably, described pigment is rutile titanium white powder, and this pigment has photochemical properties, to coordinate titanium dioxide to carry out light-catalyzed reaction, promotes the carrying out of light-catalyzed reaction.
Preferably, described thickening material is Natvosol, and this thickening material is nontoxic, tasteless, soluble in water, has extremely good salt dissolubility.
Preferably, defoamer is 100% silicone antifoam agent.
Preferably, sterilant is LXE sterilant, this sterilant low toxicity, efficient and environmental protection.
Preferably, PH conditioning agent is the 20%NaOH aqueous solution.
Preferably, clean taste emulsion is the clean taste emulsion of ethene-vinyl acetate, and this clean taste emulsion has the thickening material of saving consumption, the effect of environmental protection, economy.
The present invention also provides a kind of preparation method of wall paint, comprises the following steps:
(A) by deionized water, pigment dispersing agent, defoamer, PH conditioning agent and sterilant mix and blend, under the rotating speed of 200-300rad/min, stir 3-5min;
(B) pigment and mineral filler are added successively after stirring 20-30min in the mixture after above-mentioned steps stirs under the rotating speed of 800-1000rad/min and filter and obtain slip;
(C) clean taste emulsion, defoamer, PH conditioning agent are joined in slip and stir 3-5min under the rotating speed of 300-500rad/min;
(D) nano titanium dioxide/diatomite matrix material is stirred to 20-30min with joining after deionized water dilution under the rotating speed of 300-500rad/min in above-mentioned steps mixture after treatment;
(E) thickening material added and stir until occur that eddy current stops stirring, obtains paint vehicle;
(F) detect after the viscosity, pH value of described paint vehicle and filter and obtain wall paint.
The present invention is preparing in wall paint process, and nano titanium dioxide/diatomite matrix material is different from prior art and just adds in the time of initial making beating, adds after all adding and be selected at dispersion agent, defoamer and other additives again.It is the problem that the high-speed stirring in order to utilize when making beating is destroyed photocatalyst itself and occur reunion that prior art is first added photocatalyst product, but can destroy like this structure of photocatalyst itself, the present invention is owing to there not being the problem of reunion, adding at subsequent step is to divide breaking up to destroy the structure of photocatalyst for fear of high-speed stirring, if diatomaceous duct is blocked in the too fast meeting of stirring velocity, affect its adsorptive power.
Preferably, the granularity that the middle filtration of described step (B) obtains described slip is less than 50 μ m, and preferably, the granularity that the middle filtration of described step (F) obtains described wall paint is less than 50 μ m.Be greater than 120 object particles and can direct filtration recycle because granularity too conference affect the uniformity coefficient of paint vehicle, and consider that the difficulty that follow-up workman whitewashes in the process of whitewashing metope considers, granularity is difficult for too greatly also difficult too little.
Preferably, paint vehicle is that viscosity at 25 ℃ is that between 100-110KU, pH value is between 8.5-9.5 in temperature in described step (F).Because the most of raw material in wall paint need to be at guarantee high reactivity under alkaline condition, and wall paint this is easily corrupt under acid washing conditions, therefore the pH value of wall paint need to be alkalescence.
Embodiment
Below by specific embodiment, the present invention is described in further detail.
Embodiment 1
The preparation method of wall paint is:
(A) by deionized water 1500g, pigment dispersing agent 300g, defoamer 300g, PH conditioning agent 150g and sterilant 100g mix and blend, under the rotating speed of 200rad/min, stir 3min;
(B) pigment 1000g and mineral filler 2000g are added successively and filter that to obtain slip granularity be 50 μ m after stirring 20min in the mixture after above-mentioned steps stirs under the rotating speed of 800rad/min;
(C) clean taste emulsion 1500g, defoamer 100g, PH conditioning agent 50g are joined in slip and stir 3min under the rotating speed of 300rad/min;
(D) nano titanium dioxide/diatomite matrix material 400g is stirred to 20min with joining after deionized water dilution under the rotating speed of 300rad/min in above-mentioned steps mixture after treatment; Wherein the performance of nano titanium dioxide/diatomite matrix material is: nano titanium oxide massfraction is 30%, and the particle diameter of nano titanium oxide is 50nm, and the water ratio of matrix material is 2%, and pH value is 6, and tap density is 0.6g/cm
3, whiteness is 85%, and oil absorbency is 150%.
(E) thickening material added and stir until occur that eddy current stops stirring, obtains paint vehicle;
(F) temperature is that the viscosity that detects paint vehicle at 25 ℃ is that 95KU, pH value are to filter that to obtain wall paint granularity be 50 μ m after 8.
Embodiment 2
The preparation method of wall paint is:
(A) by deionized water 2500g, Sodium hexametaphosphate 99 500g, 100% silicone antifoam agent 450g, 20%NaOH aqueous solution 300g and LXE sterilant 300g mix and blend, under the rotating speed of 300rad/min, stir 5min;
(B) rutile titanium white powder 2000g and dicalcium powder 3500g are added successively to filter the granularity that obtains slip after stirring 30min in the mixture after above-mentioned steps stirs under the rotating speed of 1000rad/min be 40 μ m;
(C) clean ethene-vinyl acetate taste emulsion 2500g, 100% silicone antifoam agent 450g, 20%NaOH aqueous solution 300g are joined in slip and stir 5min under the rotating speed of 500rad/min;
(D) nano titanium dioxide/diatomite matrix material 1000g is stirred to 30min with joining after deionized water dilution under the rotating speed of 500rad/min in above-mentioned steps mixture after treatment; Wherein the performance of nano titanium dioxide/diatomite matrix material is: nano titanium oxide massfraction is 40%, and the particle diameter of nano titanium oxide is 40nm, and the water ratio of matrix material is 1%, and pH value is 8, and tap density is 0.5g/cm
3, whiteness is 90%, and oil absorbency is 100%.
(E) Natvosol added and stir until occur that eddy current stops stirring, obtains paint vehicle;
(F) temperature is that the viscosity that detects paint vehicle at 25 ℃ is that 100KU, pH value are that to filter the granularity that obtains wall paint after 8.5 be 40 μ m.
Embodiment 3
The preparation method of wall paint is:
(A) by deionized water 2000g, trisodium phosphate 400g, 100% silicone antifoam agent 450g, 20%NaOH aqueous solution 300g and LXE sterilant 200g mix and blend, under the rotating speed of 300rad/min, stir 5min;
(B) rutile titanium white powder 1500g and kaolin and talcous mixture 3000g are added successively and filter that to obtain slip granularity be 30 μ m after stirring 30min in the mixture after above-mentioned steps stirs under the rotating speed of 1000rad/min;
(C) clean ethene-vinyl acetate taste emulsion 2000g, 100% silicone antifoam agent 150g, 20%NaOH aqueous solution 200g are joined in slip and stir 5min under the rotating speed of 500rad/min;
(D) nano titanium dioxide/diatomite matrix material 800g is stirred to 30min with joining after deionized water dilution under the rotating speed of 500rad/min in above-mentioned steps mixture after treatment; Wherein the performance of nano titanium dioxide/diatomite matrix material is: nano titanium oxide massfraction is 40%, and the particle diameter of nano titanium oxide is 30nm, and the water ratio of matrix material is 0.5%, and pH value is 7, and tap density is 0.5g/cm
3, whiteness is 90%, and oil absorbency is 120%.
(E) Natvosol added and stir until occur that eddy current stops stirring, obtains paint vehicle;
(F) temperature is that the viscosity that detects paint vehicle at 25 ℃ is that 110KU, pH value are to filter that to obtain wall paint granularity be 30 μ m after 9.5.
Experimental example 1
Respectively three kinds of following starting material component wall paintes are tested, the preparation method of wall paint all selects the preparation method of the embodiment of the present invention 3:
The first wall paint: moiety is: deionized water 1500g, trisodium phosphate 300g, LXE sterilant 100g, 20%NaOH aqueous solution 200g, 100% silicone antifoam agent 400g, rutile titanium white powder 1000g, kaolin 2000g, the clean taste emulsion of ethene-vinyl acetate 1500g, Natvosol 200g, gac 1000g.
The second wall paint: moiety is: deionized water 1500g, trisodium phosphate 300g, LXE sterilant 100g, 20%NaOH aqueous solution 200g, 100% silicone antifoam agent 400g, rutile titanium white powder 1000g, kaolin 2000g, the clean taste emulsion of ethene-vinyl acetate 1500g, Natvosol 200g, nanometer titanic oxide material 500g, gac 500g.
The third wall paint: moiety is the starting material composition of the wall paint of the embodiment of the present invention 2.
The 4th kind of wall paint: moiety is the starting material composition of the wall paint of the embodiment of the present invention 3.
Experimental technique: get all chests of identical sealing of four size specifications, material, on chest inwall, brush one deck with above four kinds of wall paintes, then in chest, be filled with the formaldehyde of 1ml, seal tight placement after 2 days, adopt the toxic and harmful detector that model is X-am5100, respectively the content of the formaldehyde in four chests is detected, specific experiment result is as follows:
Table 1 formaldehyde content detected result
As can be seen from the table, the first wall paint is the wall paint that does not add any photocatalyst, depend charcoal absorption toxic and harmful alone, adsorptive power is very limited, and added the second wall paint after a certain amount of photocatalyst to have certain decomposition adsorptive power to toxic and harmful, but because nano titanium oxide is easily reunited, effect is also general.Prepare with the starting material of the embodiment of the present invention 3,4 the third, the Adsorption and decomposition ability effect of the 4th kind of wall paint PARA FORMALDEHYDE PRILLS(91,95) is very good, formaldehyde content obviously reduces.
Wall paint that the embodiment of the present invention provides and preparation method thereof, because it has added this photocatalyst product of nano titanium dioxide/diatomite matrix material in preparation process, nano titanium oxide is loaded on diatomite uniformly, its beneficial effect is: nano titanium oxide is not easy reunite and be more easily dispersed in coating, improve the utilization ratio of nano titanium oxide, and then promoted its practical application effect.
This photocatalyst can be realized and absorb the principle of toxic and harmful and be: under the irradiation of natural light (sunlight, fluorescent lamp, ultraviolet lamp), the valence band electronics of nano material is excited to conduction band, photochemical catalysis produce electron hole and be adsorbed on surperficial O
2and H
2o effect, generates superoxide anion radical OH and O
2 -, PARA FORMALDEHYDE PRILLS(91,95), the organic pollutants such as benzene cause the obnoxious flavoures such as the sulfur and nitrogen oxides of haze to be decomposed into harmless water and carbonic acid gas; Produce negative oxygen ion killing pathogenic bacteria, purify air lastingly; Tool Superhydrophilic self-cleaning function, this photocatalyst has absorption hazardous and noxious substances and the dual capability of decomposing hazardous and noxious substances, in the situation that there is no light source, diatomite utilizes the structure of porous can realize absorption, has nano titanium oxide in the situation of light source hazardous and noxious substances can be decomposed into H
2o and CO
2, be that low VOC formula designs without adding, artificially do not add hazardous and noxious substances, clean taste environmental protection.
It is as follows that the wall paint that the embodiment of the present invention provides has beneficial effect:
1, the formaldehyde that purifies air, chemical reaction process is as follows: HCHO → HCOOH(photocatalyst effect+chemisorption) → H
2o+CO
2
2, antibacterial, sterilization, mildew-resistant
There is superpower redox ability, can effectively kill bacterium around microorganisms such as () intestinal bacteria, streptococcus aureus, penicillin staphylococcus, moulds, play the effect of antibacterial and mouldproof.
3, smelly eliminating eliminates the unusual smell
Can decompose the odour element in smelly such as the cigarette that is adsorbed on acetaldehyde around, acetic acid, ammonia, play effect of eliminating residual smell in air.
Chemical reaction process is as follows:
CH
3cHO(acetaldehyde) → CH
3cHOOH(photocatalyst effect+chemisorption) → H
2o+CO
2
CH
3cHOOH(acetic acid)+-OH(smelly eliminating effect) →-OOCCH
3(photocatalyst effect+chemisorption) → CO
2+ H
2o
NH
3(ammonia)+-OH(smelly eliminating effect) →-ONH
4(photocatalyst effect+chemisorption) → NO
3 -+ H
2o
4, antifouling, self-cleaning
In air, oily dirt can be broken down into water and other stabilizing gas after being attracted to its surface, plays effect antifouling, self-cleaning.
5, environmental protection, pollution-free
The active oxygen producing without any detrimentally affect, is free of contamination environmentfriendly products to human body.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a wall paint, it is characterized in that, its starting material comprise following component according to the mass fraction: deionized water 15-25 part, pigment dispersing agent 3-5 part, sterilant 1-3 part, PH conditioning agent 2-6 part, defoamer 4-9 part, pigment 10-20 part, mineral filler 20-35 part, clean taste emulsion 15-25 part, nano titanium dioxide/diatomite matrix material 4-10 part, thickening material 2-4 part.
2. wall paint according to claim 1, it is characterized in that, described starting material comprise following component according to the mass fraction: deionized water 15-20 part, pigment dispersing agent 3-4 part, sterilant 1-2 part, PH conditioning agent 2-5 part, defoamer 4-6 part, pigment 10-15 part, mineral filler 20-30 part, clean taste emulsion 15-20 part, nano titanium dioxide/diatomite matrix material 4-8 part, thickening material 2-3 part.
3. wall paint according to claim 1, is characterized in that, described pigment dispersing agent is one or both in Sodium hexametaphosphate 99, sodium pyrosulfate.
4. wall paint according to claim 1, is characterized in that, described mineral filler is one or more in talcum powder, dicalcium powder, kaolin, china clay.
5. wall paint according to claim 1, is characterized in that, the nano titanium oxide massfraction in described nano titanium dioxide/diatomite matrix material is at 30-50%, and the particle diameter of nano titanium oxide is no more than 50nm.
6. wall paint according to claim 1, is characterized in that, described thickening material is Natvosol.
7. the preparation method of the wall paint as described in claim 1-6 any one, is characterized in that, comprises the following steps:
(A) by deionized water, pigment dispersing agent, defoamer, PH conditioning agent and sterilant mix and blend, under the rotating speed of 200-300rad/min, stir 3-5min;
(B) pigment and mineral filler are added successively after stirring 20-30min in the mixture after above-mentioned steps stirs under the rotating speed of 800-1000rad/min and filter and obtain slip;
(C) clean taste emulsion, defoamer, PH conditioning agent are joined in slip and stir 3-5min under the rotating speed of 300-500rad/min;
(D) nano titanium dioxide/diatomite matrix material is stirred to 20-30min with joining after deionized water dilution under the rotating speed of 300-500rad/min in above-mentioned steps mixture after treatment;
(E) thickening material added and stir until occur that eddy current stops stirring, obtains paint vehicle;
(F) detect after the viscosity, pH value of described paint vehicle and filter and obtain wall paint.
8. the preparation method of wall paint according to claim 7, is characterized in that, the granularity that the middle filtration of described step (B) obtains described slip is less than 50 μ m.
9. the preparation method of wall paint according to claim 7, is characterized in that, the granularity that the middle filtration of described step (F) obtains described wall paint is less than 50 μ m.
10. the preparation method of wall paint according to claim 7, is characterized in that, paint vehicle is that viscosity at 25 ℃ is that between 100-110KU, pH value is between 8.5-9.5 in temperature in described step (F).
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| CN104556908A (en) * | 2014-12-31 | 2015-04-29 | 长安大学 | Fiber-reinforced plastering mortar and preparation method thereof |
| CN105198286A (en) * | 2015-10-13 | 2015-12-30 | 谢军 | Environment-friendly coating for sound room and preparation method of environment-friendly coating |
| CN105315754A (en) * | 2015-04-02 | 2016-02-10 | 孙全 | Waterproof putty paste capable of removing formaldehyde |
| CN106221583A (en) * | 2016-08-23 | 2016-12-14 | 柳州市国正机电物资有限责任公司 | Clean taste coating and preparation method thereof |
| CN106284885A (en) * | 2016-08-22 | 2017-01-04 | 桐乡嘉力丰实业股份有限公司 | A kind of colour changing wall paper pointing out concentration of formaldehyde and preparation technology thereof |
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| CN104231762A (en) * | 2014-10-16 | 2014-12-24 | 深圳市宜丽家生态建材有限公司 | Diatom coating with function of adsorbing and resolving methylbenzene |
| CN104327608A (en) * | 2014-10-16 | 2015-02-04 | 深圳市宜丽家生态建材有限公司 | Diatomite coating with formaldehyde adsorbing and decomposing effects |
| CN104556908A (en) * | 2014-12-31 | 2015-04-29 | 长安大学 | Fiber-reinforced plastering mortar and preparation method thereof |
| CN105315754A (en) * | 2015-04-02 | 2016-02-10 | 孙全 | Waterproof putty paste capable of removing formaldehyde |
| CN105198286A (en) * | 2015-10-13 | 2015-12-30 | 谢军 | Environment-friendly coating for sound room and preparation method of environment-friendly coating |
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| CN106497154A (en) * | 2016-09-23 | 2017-03-15 | 甘肃连心涂料有限责任公司 | Odorless emulsion paint |
| CN106833232A (en) * | 2017-02-15 | 2017-06-13 | 广州益康新材料科技有限公司 | Environmentally friendly diatom ooze coating and preparation method thereof |
| CN107353740A (en) * | 2017-08-23 | 2017-11-17 | 重庆索利特涂料有限公司 | One kind energy-conservation automatically cleaning exterior wall latex paint, its preparation method and external wall |
| CN107353740B (en) * | 2017-08-23 | 2020-02-21 | 重庆索利特装饰有限公司 | Energy-saving self-cleaning exterior wall latex paint, preparation method thereof and building exterior wall |
| CN109054510A (en) * | 2018-07-05 | 2018-12-21 | 赵玉辉 | A kind of preparation method of novel plastering coating |
| CN109266137A (en) * | 2018-08-09 | 2019-01-25 | 安徽欧尚制漆有限公司 | A kind of preparation method of smell-clearing full-effective latex paint |
| CN110437682A (en) * | 2019-08-16 | 2019-11-12 | 广东雪儿生物科技有限公司 | A kind of ordor removing is except formaldehyde composite coating and preparation method thereof |
| CN112322160A (en) * | 2020-10-27 | 2021-02-05 | 郭竹春 | Environment-friendly formaldehyde-removing coating |
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