CN101812263A - Waterborne weather-resistant self-cleaning type silicone acrylic latex paint and production method thereof - Google Patents
Waterborne weather-resistant self-cleaning type silicone acrylic latex paint and production method thereof Download PDFInfo
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Abstract
The invention discloses a waterborne weather-resistant self-cleaning type silicone-acrylic latex paint which is prepared by mixing the following raw materials in parts by weight: 190-210 parts of water, 1-3 parts of AMP-95, 6-8 parts of PE 100 nonionic surfactant, 25-35 parts of monoisobutyrate, 2-4 parts of mineral oil defoamer, 210-230 parts of 969 rutile type titanium pigment talc, 85-95 parts of filler, 3-3.4 parts of hydroxy ethyl cellulose, 6.6-7 parts of polyurethane thickener, 390-410 parts of silicone-acrylic emulsion, 1-3 parts of A28 fungicide, 5-7 parts of DF19 mould inhibitor and 28-32 parts of hiding emulsion, the storage period is more than one year, the paint drying time is less than or equal to 2 hours, the white contrast ratio is larger than or equal to 0.94, the scrubbing resistance frequency is more than 5000 times, the artificial aging resistance time is 1000 hours without pulverization, the stain resistance is 4-6 percent, and the temperature resistance detection has no abnormality for five times. The production method of the paint has four steps, i.e. material preparation, pre-mixing, high-speed dispersion and paint mixing, the produced paint has the advantages of good stability, leveling property, aging resistance, water resistance and weather resistance, the construction is easy, and the paint has self-cleaning function.
Description
Technical field
The present invention relates to a kind of coating, specifically is latex coating and production method thereof that the esters of acrylic acid of water-based has self-cleaning function.
Background technology
In recent years, there is the defective of weathering resistance difference in China's acrylic coating commonly used, and high temperature easily returns sticking, fragile under low temperature splitting, and this coating be stained with the binding dust dirt can not be self-cleaning, the not ultraviolet resistance irradiation of damp look, tint retention is not good enough.Along with the raising of people's living standard, urban and rural buildings cause flourish, original acrylic coating will be withdrawn from the market gradually, and acrylic coating new, that performance is more excellent is in research and development in succession.CN200910111721.9 discloses Xiamen University's " fluoro-silicone self-cleaning paint and preparation method thereof " patented technology, and this has been done good trial, and useful technical contribution has been made by society.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of prior art, also have lofty ideals for setting about, design a kind of waterborne weather-resistant self-cleaning type silicone acrylic latex paint and production method thereof from another technology side.
The technical scheme that solves the problems of the technologies described above is:
This waterborne weather-resistant self-cleaning type silicone acrylic latex paint is to be mixed by following raw materials according and weight part thereof to form: as water 190-210 part of dispersion medium, AMP-95 as the PH conditioning agent is 2-amino-2-methyl propyl alcohol 1-3 part, PE-100 nonionic surface active agent 6-8 part as Ricinate, mono isobutyrate 25-35 part as film coalescence aid, mineral oil antifoam agent 2-4 part as defoamer, 969 Rutile type Titanium Dioxide 210-230 parts as pigment, water-ground limestone and/or talcum powder 85-95 part as filler, Natvosol 3-3.4 part and polyurethane thickener 6.6-7 part as thickening material, organosilicon crylic acid latex 390-410 part as base-material, the A28 sterilant is water-based chloromethyl or methylisothiazolinone and bronocot mixture 1-3 part, the DF19 mould inhibitor is derosal and Karmex 5-7 part, opacifying property emulsion 28-32 part; The coating that makes does not have lump in container, be uniform state, good stability after the stirring, shelf lives 〉=one year, have good workability, multiple tracks sprays or brushes accessible, coating time of drying≤2h, contrast ratio 〉=0.94,168 hours alkaline resistance test is no abnormal, and the scrubbing resistance number of times surpasses 5000 times, artificial ageing resistance detection no efflorescence in 1000 hours, contamination resistance 4%-6%, it is no abnormal that temperature-change resistance detects 5 circulations.
The production method of this waterborne weather-resistant self-cleaning type silicone acrylic latex paint is through following steps:
(1) gets the raw materials ready: prepare enough process water 190-210 weight part (down together), want to buy home-made granularity 1250 purpose water-ground limestones and/or granularity 800 purpose talcum powder 85-95 parts to chemical industry shop or manufacturer, to U.S.'s ROHM AND HAAS (Rohma﹠amp; Hass) company wants to buy PE-100 nonionogenic tenside 6-8 part, opacifying property emulsion 28-32 part and polyurethane thickener 6.6-7 part, want to buy AMP-95 chemical 1-3 part to U.S. Anguds company, buy mono isobutyrate 25-35 part to U.S. Yi Shi Man, K26 organosilicon crylic acid latex 390-410 part is buied by national starch company to the U.S., buy 250-HBR Natvosol 3-3.4 part to U.S. He Ke man of great strength company, mineral oil antifoam agent 2-4 part is buied by Henkel (HenKel) company to Germany, buy A28 sterilant 1-3 part and DF19 mould inhibitor 5-7 part to German Shu Mei company, buy 969 Rutile type Titanium Dioxide 210-230 parts to company of Japanese Du Pont (Dupont).
(2) pre-mixing: add in the cylinder of dispersion machine by following sequencing and partly to measure mineral oil antifoam agent, 210-230 part 969 Rutile type Titanium Dioxides, 85-95 part water-ground limestone and/or talcum powder, 3-3.4 part Natvosol in 190-210 part water, 6-8 part PE-100 nonionic surface active agent, 2-4 part, with the rotating speed stirring at low speed 5-10min of (300-400) r/min.
(3) high speed dispersion: behind the premixed stirring at low speed 5-10min of step (2), carry out the high-speed stirring 20-30min of rotating speed for (1200-1500) r/min, add polyurethane thickener 6.6-7 part again, by the middling speed dispersed with stirring 5-8min of (900-1100) r/min.
(4) paint: when pigment and filler reach the dispersity of design requirements, add 1-3 part AMP-95,25-35 part mono isobutyrate, 390-410 part K26 organosilicon crylic acid latex, remaining mineral oil antifoam agent, 1-3 part A28 sterilant, 5-7 part DF19 mould inhibitor again, this process stirs 5-10min with (300-400) r/min rotating speed in the paint cylinder, through barreled after the assay was approved finished product, be directly used in the exterior wall application.
The invention has the beneficial effects as follows: adopt this coating high temperature of aforesaid method production not return sticking, not embrittlement of low temperature, good weatherability, not sagging, good leveling property, easily construction during construction, itself has self-cleaning function coating, the cleaning that keeps wall face, good stability, the shelf lives was above 1 year.
Embodiment
Below, the present invention is described in further detail in conjunction with the embodiments.Each raw material and the weight part thereof that to produce this coating earlier are listed in the table below by eight embodiment:
| Natvosol | ??3-3.4 | ??3.2 | ??3.4 | ??3 | ??3.2 | ??3.4 | ??3.2 | ??3 | ??3 |
| Polyurethane thickener | ??6.6-7 | ??6.8 | ??7 | ??6.6 | ??6.6 | ??6.6 | ??7 | ??6.6 | ??7 |
| Natvosol | ??3-3.4 | ??3.2 | ??3.4 | ??3 | ??3.2 | ??3.4 | ??3.2 | ??3 | ??3 |
| The A28 sterilant | ??1-3 | ??2 | ??3 | ??1 | ??2 | ??3 | ??2 | ??3 | ??1 |
| The DF19 mould inhibitor | ??5-7 | ??6 | ??7 | ??5 | ??5 | ??5 | ??7 | ??5 | ??7 |
| Opacifying property emulsion | ??28-32 | ??30 | ??32 | ??28 | ??30 | ??32 | ??30 | ??28 | ??28 |
Annotate: what in the table there be material name is to be called for short, among every embodiment, and twice adding before and after mineral oil antifoam agent divides.
Embodiment 1 (epiphase is answered raw material and the weight part proportioning value of embodiment in the contrast): according to the order of sequence with 200 parts of process waters, 7 parts of PE-100 nonionic surface active agent, 1.5 part mineral oil antifoam agent, 220 part of 969 Rutile type Titanium Dioxide, 45 parts of water-ground limestones, 45 parts of talcum powder, 3.2 a part Natvosol successively joins in the cylinder of dispersion machine, rotating speed stirring at low speed 5-10min with (300-400) r/min carries out pre-mixing, then the rotating speed with (1200-1500) r/min carries out high-revolving dispersion 20-30min, add 6.8 parts of polyurethane thickeners again, rotating speed dispersed with stirring 5-8min by (900-1000) r/min, when the dispersity of pigment and filler reaches requirement, enter the paint step, add 2 parts of AMP-95,30 parts of mono isobutyrates, 400 parts of K26 organosilicon crylic acid latexs, 1.5 part mineral oil antifoam agent, 2 parts of A28 sterilant, 6 parts of DF19 mould inhibitors, the rotating speed with (300-400) r/min in the paint cylinder stirs 5-10min after check, barreled.
All the other embodiment 2-8 all according to corresponding embodiment, raw material and weight part proportioning value in the table, make this coating with embodiment 1 same procedure.
Produce raw material that this coating buys through strict and conscientious screening, existing screening situation with some main raw materials is described below with relevant physics and chemistry mechanism:
1 pigment: pigment is Rutile type Titanium Dioxide and dichloride in anatase type TiO
2Collocation is used, and Rutile type Titanium Dioxide has good weather resistance, and its optimum amount is 15%～20% dichloride in anatase type TiO
2Be white powder, the special composite structure of this powder helps the separation and the transportation of photic current carrier, thereby has very high photocatalytic activity, long service life.The consumption of nanoparticle is very crucial, if add quantity not sufficient, does not then have the effect of expection; Dosage is too much, is not only a kind of waste, can play side effect on the contrary, coating quality is descended, so its optimum amount is 5%～8%.
2 fillers: kaolin (SK-T-401250 order), sericite (GA-1800 order), wollastonite (1250 order) etc. are arranged.The use of filler not only can reduce cost, and can give coating some special performances.Make coating have certain thixotropy as kaolinic sheet structure, improve the stability in storage of coating; The sheet structure of sericite has good shielding effect to ultraviolet ray, microwave, infrared rays, weathering resistance indexs such as the resistance to deterioration of enhancing coating, uvioresistant.But the consumption of filler is unsuitable too much, is good with the pigment volume concentration (PVC) (PVC) of guarantee system 25%～35%.
3 thickening materials: thickening material mainly is a Natvosol, and its effect is to increase the viscosity of water with the dispersion efficiency that improves color stuffing, the final viscosity that increases coating, and optimum amount is 0.3%～0.4%; Polyurethane thickener is a colloidal state inorganic mineral type thickening material, its effect is to bring sag resistance for system, control viscosity, dispersing property is good, improve the levelling property of coating, these two kinds of thickening materials of optimum amount 0.1%～0.2%. are used, and can effectively adjust the rheological behaviour of coating under basic, normal, high shearing rate, obtain good leveling property, not sagging, good stability, easy working coating.
4 emulsions: used polymer emulsion is different from pure third, the benzene emulsion that is usually used in now exterior coating on the market in the prescription, but a kind of organo-siloxane monomer and acrylic ester monomer copolymerization that utilizes chemical copolymerization method that unsaturated link(age) will be arranged, introduce the modification organosilicon crylic acid latex of siloxanes on main polymer chain, optimum amount is 30%～40%. of a lacquer total amount
The base-material of this coating is the high-weatherability organosilicon crylic acid latex.It is when drying and forming-film, siloxanes hydrolysis, polycondensation, firmly crosslinked cubic network (Si-O-Si-) structure can formed between the polymer molecule and between polymkeric substance and the base material, make paint film have very strong water tolerance and sticking power, and polysiloxane molecule is structure in the shape of a spiral, methyl is outwards arranged and is rotated around the Si-O chain, molecular volume is big, and cohesive energy density(CED) is low, thereby makes emulsion that very strong hydrophobicity and dirt resistance be arranged.In addition, the bond energy of Si-O is much larger than C-C key and C-O key in the organosilicon crylic acid latex, and this makes thermotolerance, weathering resistance, the antioxidant capacity of organosilicon crylic acid latex strengthen.Therefore, the water tolerance of this coating, pollution resistance, water resisting property performance obviously are better than pure acrylic acid coating, have satisfactory stability simultaneously, and the shelf lives can reach more than 1 year.
The selected pigment of this coating has also added the nano-scale anatase TiO with special construction except adding Rutile type Titanium Dioxide
2. be to be composited by ultra tiny inorganic functional material, particle diameter is little, specific surface area is big, has very high chemical stability and thermostability.It is added in the coating, can decompose pollutent, thereby play self-cleaning effect by light-catalyzed reaction attached to coating surface.Simultaneously, utilize this phenomenon of the easy efflorescence of anatase thpe white powder, add a spot of nano-scale anatase TiO
2, under UV-irradiation, about 1 year micronization takes place, approximately consume the film thickness of (6～8) μ m, the dust that sticks on the body of wall is come off thereupon, body of wall also can keep clean for a long time.Its paint film itself has self-cleaning function, and this is very important concerning air-borne dust pollutes serious day by day urban environment.
In a word, Weather-proof self-cleaning exterior coating with organic siloxane modified ACRYLIC EMULSION preparation: (1) coating is difficult for efflorescence and fades, have good weather, opacifying power and thixotropy, paint film is water-fast, alkali resistance and scrub resistance be considerably beyond the national standard of emulsion-type exterior coating; (2) compare with generic latex lacquer exterior coating, because the particle diameter of organosilicon crylic acid latex makes its coating have splendid sticking power, the paint film difficult drop-off much smaller than ordinary emulsion, also can intercept rainwater and Carbon Dioxide in Air simultaneously and invade body of wall, can protect for a long time the sand-cement slurry wall; (3) have good freeze-thawing resistant stability and package stability, and paint film itself have self-cleaning function and good temperature-change resistance; (4) in the long run analyze, owing to the silicon polyacrylicresin outer wall paint difficult drop-off, fade and efflorescence, its long service life can be saved and be overhauled used materials cost and working hour expense; (5) not only storage at normal temperature good stability, time are long for coating, and freeze-thawing resistant and heat-storage stability are all fine, can avoid the expired unnecessary waste that causes of coating.
This silicon polyacrylicresin outer wall paint light weight is the unglazed exterior coating of water-based, is mainly used in the outer application of base materials such as sand-cement slurry, asbestos plate, emplaster wall.Brush the external wall of various buildingss and often be in damp and hot wall.
Claims (2)
1. waterborne weather-resistant self-cleaning type silicone acrylic latex paint, it is characterized in that being mixed and form: as water 190-210 part of dispersion medium by following raw materials according and weight part thereof, AMP-95 as the pH regulator agent is 2-amino-2-methyl propyl alcohol 1-3 part, PE-100 nonionic surface active agent 6-8 part as Ricinate, mono isobutyrate 25-35 part as film coalescence aid, mineral oil antifoam agent 2-4 part as defoamer, 969 Rutile type Titanium Dioxide 210-230 parts as pigment, water-ground limestone and/or talcum powder 85-95 part as filler, Natvosol 3-3.4 part and polyurethane thickener 6.6-7 part as thickening material, organosilicon crylic acid latex 390-410 part as base-material, the A28 sterilant is water-based chloromethyl or methylisothiazolinone and bronocot mixture 1-3 part, the DF19 mould inhibitor is derosal and Karmex 5-7 part, opacifying property emulsion 28-32 part; Shelf lives 〉=one year, coating time of drying≤2h, contrast ratio 〉=0.94,168 hours alkaline resistance test is no abnormal, and the scrubbing resistance number of times surpasses 5000 times, artificial ageing resistance detection no efflorescence in 1000 hours, contamination resistance 4%-6%, it is no abnormal that temperature-change resistance detects 5 circulations.
2. the production method of waterborne weather-resistant self-cleaning type silicone acrylic latex paint as claimed in claim 1 is characterized in that through following steps:
(1) gets the raw materials ready: prepare enough process water 190-210 weight part (down together), want to buy home-made granularity 1250 purpose water-ground limestones and/or granularity 800 purpose talcum powder 85-95 parts to chemical industry shop or manufacturer, to U.S.'s ROHM AND HAAS (Rohma﹠amp; Hass) company wants to buy PE-100 nonionogenic tenside 6-8 part, opacifying property emulsion 28-32 part and polyurethane thickener 6.6-7 part, want to buy AMP-95 chemical 1-3 part to U.S. Anguds company, buy mono isobutyrate 25-35 part to U.S. Yi Shi Man, K26 organosilicon crylic acid latex 390-410 part is buied by national starch company to the U.S., buy 250-HBR Natvosol 3-3.4 part to U.S. He Ke man of great strength company, mineral oil antifoam agent 2-4 part is buied by Henkel (HenKel) company to Germany, buy A28 sterilant 1-3 part and DF19 mould inhibitor 5-7 part to German Shu Mei company, buy 969 Rutile type Titanium Dioxide 210-230 parts to company of Japanese Du Pont (Dupont);
(2) pre-mixing: add in the cylinder of dispersion machine by following sequencing and partly to measure mineral oil antifoam agent, 210-230 part 969 Rutile type Titanium Dioxides, 85-95 part water-ground limestone and/or talcum powder, 3-3.4 part Natvosol in 190-210 part water, 6-8 part PE-100 nonionic surface active agent, 2-4 part, with the rotating speed stirring at low speed 5-10min of (300-400) r/min;
(3) high speed dispersion: behind the premixed stirring at low speed 5-10min of step (2), carry out the high-speed stirring 20-30min of rotating speed for (1200-1500) r/min, add polyurethane thickener 6.6-7 part again, by the middling speed dispersed with stirring 5-8min of (900-1100) r/min;
(4) paint: when pigment and filler reach the dispersity of design requirements, add 1-3 part AMP-95,25-35 part mono isobutyrate, 390-410 part K26 organosilicon crylic acid latex, remaining mineral oil antifoam agent, 1-3 part A28 sterilant, 5-7 part DF19 mould inhibitor again, this process stirs 5-10min with (300-400) r/min rotating speed in the paint cylinder, through barreled after the assay was approved finished product, be directly used in the exterior wall application.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102391749A (en) * | 2011-09-07 | 2012-03-28 | 雅士利涂料（苏州）有限公司 | Self-cleaning decontamination-type interior wall latex paint as well as preparation method and coating method thereof |
| CN102863860A (en) * | 2012-09-18 | 2013-01-09 | 张立功 | Stain-resistant self-cleaning protective paint preparation method and product thereof |
| CN103059677A (en) * | 2012-12-26 | 2013-04-24 | 王娟 | Silicone acrylic emulsion dope |
| CN104530880A (en) * | 2014-12-15 | 2015-04-22 | 唐云 | Intelligent temperature-regulating energy-saving type emulsion paint for exterior wall |
| WO2015062332A1 (en) * | 2013-10-31 | 2015-05-07 | 德高（广州）建材有限公司 | Waterproof slurry having sterilization function |
| CN105419542A (en) * | 2015-12-31 | 2016-03-23 | 青建集团股份公司 | Aqueous marble-imitated colorful paint and preparation construction method therefor |
| CN106675412A (en) * | 2016-12-06 | 2017-05-17 | 钦州市高新技术产业服务中心 | Internal wall paint and preparation method thereof |
| CN108929605A (en) * | 2017-05-23 | 2018-12-04 | 太仓顺如成建筑材料有限公司 | A kind of Weatherable Self-cleaning Exterior Wall Coatings |
| CN110804360A (en) * | 2019-11-19 | 2020-02-18 | 合众（佛山）化工有限公司 | APAO modified silicone-acrylic emulsion anti-sagging coating |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102391749A (en) * | 2011-09-07 | 2012-03-28 | 雅士利涂料（苏州）有限公司 | Self-cleaning decontamination-type interior wall latex paint as well as preparation method and coating method thereof |
| CN102863860A (en) * | 2012-09-18 | 2013-01-09 | 张立功 | Stain-resistant self-cleaning protective paint preparation method and product thereof |
| CN103059677A (en) * | 2012-12-26 | 2013-04-24 | 王娟 | Silicone acrylic emulsion dope |
| WO2015062332A1 (en) * | 2013-10-31 | 2015-05-07 | 德高（广州）建材有限公司 | Waterproof slurry having sterilization function |
| CN104530880A (en) * | 2014-12-15 | 2015-04-22 | 唐云 | Intelligent temperature-regulating energy-saving type emulsion paint for exterior wall |
| CN105419542A (en) * | 2015-12-31 | 2016-03-23 | 青建集团股份公司 | Aqueous marble-imitated colorful paint and preparation construction method therefor |
| CN106675412A (en) * | 2016-12-06 | 2017-05-17 | 钦州市高新技术产业服务中心 | Internal wall paint and preparation method thereof |
| CN108929605A (en) * | 2017-05-23 | 2018-12-04 | 太仓顺如成建筑材料有限公司 | A kind of Weatherable Self-cleaning Exterior Wall Coatings |
| CN110804360A (en) * | 2019-11-19 | 2020-02-18 | 合众（佛山）化工有限公司 | APAO modified silicone-acrylic emulsion anti-sagging coating |
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Open date: 20100825 |