CN101575472A - Anti-cracking stain-resistant exterior wall latex paint and preparation method thereof - Google Patents
Anti-cracking stain-resistant exterior wall latex paint and preparation method thereof Download PDFInfo
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- CN101575472A CN101575472A CNA2009100328689A CN200910032868A CN101575472A CN 101575472 A CN101575472 A CN 101575472A CN A2009100328689 A CNA2009100328689 A CN A2009100328689A CN 200910032868 A CN200910032868 A CN 200910032868A CN 101575472 A CN101575472 A CN 101575472A
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Abstract
The invention discloses anti-cracking stain-resistant exterior wall latex paint and a preparation method thereof. The latex paint comprises the following components: 35 to 50 percent of elastic polyacrylic emulsion, 15 to 20 percent of titanium pigment, 3 to 5 percent of nanometer SiO2, 2 to 4 percent of flatting agent, 4.3 to 6 percent of additive, and 10 to 15 percent of deionized water. The invention also discloses the preparation method for the anti-cracking stain-resistant exterior wall latex paint, which comprises two parts of preparation of slurry and preparation of the latex paint. The anti-cracking stain-resistant exterior wall latex paint realizes the unification of various performances of a paint film such as elasticity, strength, compactness, waterproofness, stain resistance, air permeability and the like, also adds higher light reflectivity and thermal insulation to the paint film at the same time, and has the advantages of convenient construction, simple preparation method, and easy mass production.
Description
Technical field
The present invention relates to a kind of paint, specifically is a kind of anti-cracking stain-resistant exterior wall latex paint.
Technical field
In the existing exterior coating, emulsion paint is with its colourful decorative effect, simple and efficient constructional method, and lower use cost, advantages such as safety and environmental protection have become the main raw of China's decorating outer wall of building.But in the external-wall coating process, ubiquity coating cracking and problem such as seriously polluted have influenced the application and the popularization process of exterior coating.Cause the reason of coating cracking except that the volumetric shrinkage of basic unit, temperature variation, alternation of wetting and drying, also filming with coating lacks snappiness and elasticity, lacks to hide the microfracture ability certain relation is arranged.Filming owing to have elasticity of elastic exterior coating material can hide the microfracture of basic unit and coating is not ftractureed.But the Tg temperature (transition temperature) of the filmogen of general elastic coating is low, films to raise and deliquescing is returned stickingly with temperature, and very easily adhering contaminant has influenced decorative effect.In elasticity and intensity that balance is filmed, on the basis of this a pair of contradiction, it is crucial improving its polluting proofing property.Nowadays; building energy conservation has become the statutory requirement of China, the Ministry of Construction exterior-wall heat insulation as big event, because lagging material has very high thermal resistance; under the heat same case, the rate temperature change of outer thermal-insulating and anti-cracking protective layer improves 8 ~ 30 times during than former insulation situation.For the outer insulation that is extensive use of styrofoam and polyphenylene granule heat-insulating coating, when using common coating to carry out facing, the temperature of thermal insulation layer can reach 80 ℃ summer, and the variation of surface temperature can reach 50 ℃.Often cause the cracking of cracking resistance protective layer thus.Therefore must improve the flexibility of cracking resistance protecting materials, the elasticity of facing coating, water-repellancy, temperature-change resistance, ageing resistance are also anxious to be hoisted simultaneously.
Summary of the invention
Technical problem to be solved by this invention provides a kind of snappiness, splitting resistance is good and the exterior wall latex paint of anti-contamination.The present invention also provides the preparation method of this exterior wall latex paint in addition.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of anti-cracking stain-resistant exterior wall latex paint is characterized in that it comprises the component of following weight percentage:
Deionized water 10～15%
Auxiliary agent 4.3～6%
Nano level SiO
23～5%
Talcum powder 2～3%
BaSO
4 3～5％
Elastomeric propylene yogurt liquid 35～50%
Hollow glass micropearl 5～8%
Thickening material 1～2%
Flow agent 2～4%
Titanium dioxide 15～20%.
As of the present invention preferred, above-mentioned auxiliary agent comprises:
Dispersion agent 0.5～0.6%
Wetting agent 0.1～0.2%
Activator 0.6～1.0%
Sterilant 0.1～0.2%
Propylene glycol 1.5～2%
Film coalescence aid 1.5～2%.
Wherein, dispersion agent is poly-to be ammonium carboxylate salts, and wetting agent is a nonionogenic tenside solution, and defoamer is a polysiloxane solution, and sterilant is an isothiazolinone compounds solvent.
Above-mentioned titanium dioxide is preferably Rutile type Titanium Dioxide.
The preparation method of anti-cracking stain-resistant exterior wall latex paint of the present invention, this method comprises the steps: (weight ratio)
1) preparation of slurry:
Auxiliary agent with 4.3～6%, 2～3% talcum powder, 3～5%BaSO
4, 15～20% titanium dioxides and 3～5% nano level SiO
2Put into 10～15% deionized water, stirred 20-40 minute with 800～1000r/min rotating speed in homogenizer, afterwards compound is ground to≤50 microns fineness, it is standby to make slurry;
2) preparation of emulsion paint:
Pour the slurry of step 1) preparation, 35～40% elastomeric propylene yogurt liquid, 5～8% hollow glass micropearl, 1～2% thickening material and 2～4% flow agents in stirrer stirring at a slow speed, rotating speed 60～120r/min, color matching, after the filtration, metering packing.
Elasticity external wall emulsion paint has excellent water-repellancy because of it, hide the ability of basic unit's microscopic checks and be used widely, but elastic emulsion paint in the past film return easily sticking, adhering contaminant and influence decorative effect very easily.Film though can obtain good hydrophobic nature by an amount of hydrophobizing agent of interpolation in coating, because of its surface is the bar oiliness, some bar oily pollutants are easy to stick to its surface, and are difficult for being fallen by rain-out again, form serious rainprint.Facts have proved that the film contamination resistance of filming than lipophilicity of wetting ability is better, is genuine self-cleaning and film-coated.Make its disadvantage such as whiting expansion that absorb water in order to solve because of non-reaction hydrophilic additive moves to film coated surface, the present invention selects no saponification for use, surface self-crosslinking technology synthetic emulsion is a base-material, by nano material it is carried out modification, control the preferred of PVC and color stuffing and the emulsion paint of preparation, realized being coated with the unification of many performances such as film elasticity, intensity, compactness, water-repellancy, contamination resistance, ventilation property, additional again simultaneously film higher luminous reflectance factor and the heat-proof quality of giving is to the energy-saving and cost-reducing positive contribution that provides of coated thing.Therefore, the present invention has wide application field and vast market prospect.
1, the elasticity contamination resistance of filming:
Adopting self-crosslinking, no saponified elastomeric propylene yogurt liquid is filmogen.It has individual core one shell structure, adopts no saponification process, has eliminated the existence because of the clear water surfacant, and cause the suction film, return white, suffer from after expanding, owing to used the self-crosslinking technology, make film coated surface form reticulated structure, improved compactness, intensity and the hardness of filming.Adopt the hydrophilization technology, making films is wetting ability and oil repellency, the lipophilicity pollutent is difficult to adhere to, and adheres to not firmly even adhere to also, and the hydrophilic group on the wetting ability surface of filming is little because of having low electric charge and the charged electrostatic attraction that swims between the contamination particle simultaneously, it is difficult to attached to coatingsurface, in addition, rainwater has wetting action to hydrophilic surface, and the contact area of water is little, pollutent is easy to be filled by rainwater and washes off, becomes from clear self-cleaning layer.
2, improve the solar heat reflecting and heat insulating function that elasticity is filmed.
1. the refraction coefficient of Rutile type Titanium Dioxide reaches 2.8, reflection coefficient 〉=80%, so it becomes at first pigment.
2. select existing mirrored effect for use, the hollow glass micropearl that heat insulation property is arranged again is as functional filler (500 order), and its thermal conductivity is 0.07W/MK, and the light diffusion rate is 80%～88%, and density is 0.3～0.45g/cm3.
3. add infrared radiation material talcum powder, mica powder, barium sulfate etc. in right amount, its specific absorption to 8～13um wave band is bigger, with TiO
2Collocation is used can form comparatively ideal radiation cooling coating.
4. utilize nanometer SiO
2Three-dimensional chain-like structure, specific surface area is big, and the surface is touched and can highly easily be formed the activated adsorption center in coating system, forms linkage force in film coated surface, form reticulated structure, improved compactness, toughness, smoothness, hardness, scrub resistance, contamination resistance and the ageing resistance of filming greatly.
Main performance index of the present invention reaches with the standard contrast and sees Table 1.
Table 1:
| Test item | Standard-required | Detected result |
| Alkali resistance (48h) | No abnormal | 240h is no abnormal |
| Water tolerance (96h) | No abnormal | 240h is no abnormal |
| Abrasion resistance/time | ≥1000 | 5000 |
| Artificial ageing resistance (h) | 1000 | 2000 |
| Tensile strength (MPa) | ≥1.0 | 2.9 |
| Breaking tenacity % | ≥300 | 418 |
| Cohesive strength (MPa) | ≥0.2 | 0.95 |
| Freeze-thawing resistant cyclicity (25 times) | No abnormal | No abnormal |
| Contamination resistance (5 times, reflect rate of descent) % | ≤30 | 9 |
| Photothermal reflectance rate % | 87 |
| Thermal insulation (cooling ℃) | 5～8 |
This shows that this coating is promoting several class greatly than traditional coating qualitatively, reached fully and made the life better and Working environment, the purpose of improve security, saving energy and reduce the cost.
Description of drawings
Fig. 1 is that slurry is made flow process;
Fig. 2 is that emulsion paint is made flow process.
Embodiment
Below in conjunction with embodiment the present invention is further elaborated.
Be weight ratio below the embodiment 1:()
1) the preparation (see figure 1) of slurry:
Auxiliary agent with 4.3%, 2% talcum powder, 5%BaSO
4, 20% titanium dioxide and 3% nano level SiO
2Put into 10% deionized water, in homogenizer, stirred 20-40 minute with 800～1000r/min rotating speed, afterwards compound is ground to≤50 microns fineness, it is standby to make slurry, and wherein auxiliary agent is: ammonium carboxylate salts 0.5%, nonionic surfactant solution 0.1%, polysiloxane solution 0.6%, isothiazolinone compounds solvent 0.1%, propylene glycol 1.5%, film coalescence aid 1.5%.
2) the preparation (see figure 2) of emulsion paint:
Pour the slurry of step 1) preparation, 48% elastomeric propylene yogurt liquid, 5% hollow glass micropearl, 1% thickening material and 2.7% flow agent in stirrer stirring at a slow speed, rotating speed 60～120r/min filters metering packing.
Embodiment 2:
1) preparation of slurry:
Auxiliary agent with 6%, 3% talcum powder, 3%BaSO
4, 15% titanium dioxide and 3% nano level SiO
2Put into 15% deionized water, in homogenizer, stirred 20-40 minute with 800～1000r/min rotating speed, afterwards compound is ground to≤50 microns fineness, it is standby to make slurry, and wherein auxiliary agent is: ammonium carboxylate salts 0.6%, nonionic surfactant solution 0.2%, polysiloxane solution 1.0%, isothiazolinone compounds solvent 0.2%, propylene glycol 2%, film coalescence aid 2%.
2) preparation of emulsion paint:
The slurry that step 1) is prepared, 45% elastomeric propylene yogurt liquid, 5% hollow glass micropearl, 1% thickening material and 4% flow agent are poured in the stirrer and are stirred at a slow speed, rotating speed 60～120r/min, and color matching, after the filtration, metering packing.
Embodiment 3:
A kind of preparation method of anti-cracking stain-resistant exterior wall latex paint comprises the steps: (weight ratio)
1) preparation of slurry:
Auxiliary agent with 5%, 2.5% talcum powder, 4%BaSO
4, 16% titanium dioxide and 4% nano level SiO
2Put into 13% deionized water, in homogenizer, stirred 20-40 minute with 800～1000r/min rotating speed, afterwards compound is ground to≤50 microns fineness, it is standby to make slurry, and wherein auxiliary agent is: ammonium carboxylate salts 0.5%, nonionic surfactant solution 0.2%, polysiloxane solution 0.8%, isothiazolinone compounds solvent 0.1%, propylene glycol 1.7%, film coalescence aid 1.7%.
2) preparation of emulsion paint:
Pour the slurry of step 1) preparation, 46% elastomeric propylene yogurt liquid, 6% hollow glass micropearl, 1% thickening material and 2.5% flow agent in stirrer stirring at a slow speed, rotating speed 60～120r/min, after the filtration, metering packing.
Claims (8)
1, a kind of anti-cracking stain-resistant exterior wall latex paint is characterized in that it comprises the component of following weight percentage:
Deionized water 10～15%
Auxiliary agent 4.3～6%
Nano level SiO
23～5%
Talcum powder 2～3%
BaSO
4 3～5％
Elastomeric propylene yogurt liquid 45～50%
Hollow glass micropearl 5～8%
Thickening material 1～2%
Flow agent 2～4%
Titanium dioxide 15～20%.
2, anti-cracking stain-resistant exterior wall latex paint according to claim 1 is characterized in that described auxiliary agent comprises:
Dispersion agent 0.5～0.6%
Wetting agent 0.1～0.2%
Defoamer 0.6～1.0%
Sterilant 0.1～0.2%
Propylene glycol 1.5～2%
Film coalescence aid 1.5～2%.
3, anti-cracking stain-resistant exterior wall latex paint according to claim 2 is characterized in that it is ammonium carboxylate salts that dispersion agent gathers.
4, anti-cracking stain-resistant exterior wall latex paint according to claim 2 is characterized in that wetting agent is a nonionogenic tenside solution.
5, anti-cracking stain-resistant exterior wall latex paint according to claim 2 is characterized in that defoamer is a polysiloxane solution.
6, anti-cracking stain-resistant exterior wall latex paint according to claim 2 is characterized in that sterilant is an isothiazolinone compounds solvent.
7, the preparation method of the described anti-cracking stain-resistant exterior wall latex paint of claim 1 is characterized in that this method comprises the steps: (weight ratio)
1) preparation of slurry:
Auxiliary agent with 4.3～6%, 2～3% talcum powder, 3～5%BaSO
4, 15～20% titanium dioxides and 3～5% nano level SiO
2Put into 10～15% deionized water, stirred 20-40 minute with 800～1000r/min rotating speed in homogenizer, afterwards compound is ground to≤50 microns fineness, it is standby to make slurry;
2) preparation of emulsion paint:
Pour the slurry of step 1) preparation, 45～50% elastomeric propylene yogurt liquid, 5～8% hollow glass micropearl, 1～2% thickening material and 2～4% flow agents in stirrer stirring at a slow speed, rotating speed 60～120r/min filters metering packing.
8, the preparation method of anti-cracking stain-resistant exterior wall latex paint according to claim 7 is characterized in that described auxiliary agent comprises:
Dispersion agent 0.5～0.6%
Wetting agent 0.1～0.2%
Defoamer 0.6～1.0%
Sterilant 0.1～0.2%
Propylene glycol 1.5～2%
Film coalescence aid 1.5～2%.
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|---|---|---|---|
| CNA2009100328689A CN101575472A (en) | 2009-06-04 | 2009-06-04 | Anti-cracking stain-resistant exterior wall latex paint and preparation method thereof |
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|---|---|---|---|
| CNA2009100328689A CN101575472A (en) | 2009-06-04 | 2009-06-04 | Anti-cracking stain-resistant exterior wall latex paint and preparation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127368A (en) * | 2011-04-14 | 2011-07-20 | 潍坊三强集团有限公司 | Heat insulation and heat preservation paint and production method thereof |
| CN102268208A (en) * | 2011-06-02 | 2011-12-07 | 沈阳顺风新城建筑材料有限公司 | Nanometer silica sol modified exterior wall emulsion paint and preparation method thereof |
| CN102311690A (en) * | 2011-08-02 | 2012-01-11 | 湖南湘江涂料集团有限公司 | Waterborne exterior elastic reflective heat insulation coating and production method thereof |
| CN102690577A (en) * | 2012-06-15 | 2012-09-26 | 宁波华宝石节能建材有限公司 | Engineering latex paint |
| CN102732114A (en) * | 2012-06-08 | 2012-10-17 | 广州立邦涂料有限公司 | Road marking paint |
| CN102732117A (en) * | 2012-06-08 | 2012-10-17 | 广州立邦涂料有限公司 | Multifunctional water-base high light emulsion paint suitable for various substrates |
| CN102732113A (en) * | 2012-06-08 | 2012-10-17 | 广州立邦涂料有限公司 | Light antiseptic latex paint |
| CN102850874A (en) * | 2012-08-10 | 2013-01-02 | 江苏紫石化工科技有限公司 | Sunlight-heat-reflecting flexible thermal insulation paint and preparation method thereof |
| CN103834216A (en) * | 2014-03-19 | 2014-06-04 | 深圳市文浩建材科技有限公司 | Nano thermal insulation reflective coating additive for exterior wall |
| CN104177954A (en) * | 2013-05-24 | 2014-12-03 | 铜仁市光彩漆业有限公司 | Oily exterior wall paint containing organosilicon |
| CN104830177A (en) * | 2015-05-21 | 2015-08-12 | 田福东 | Novel waterproof coating |
| CN104893472A (en) * | 2015-06-15 | 2015-09-09 | 合肥启华环保科技有限公司 | Waterproof elastic latex paint for building external wall and preparation method of waterproof elastic latex paint |
| CN106085048A (en) * | 2016-06-08 | 2016-11-09 | 安徽真信涂料有限公司 | A kind of preparation method of thermal-insulating external-wall coating |
| CN107629594A (en) * | 2017-09-20 | 2018-01-26 | 芜湖县双宝建材有限公司 | A kind of Anti-cracking elastic emulsion paint |
| CN108641521A (en) * | 2018-06-13 | 2018-10-12 | 重庆文理学院 | A kind of anti-aging nano modification exterior wall latex paint and preparation method thereof |
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2009
- 2009-06-04 CN CNA2009100328689A patent/CN101575472A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127368A (en) * | 2011-04-14 | 2011-07-20 | 潍坊三强集团有限公司 | Heat insulation and heat preservation paint and production method thereof |
| CN102268208A (en) * | 2011-06-02 | 2011-12-07 | 沈阳顺风新城建筑材料有限公司 | Nanometer silica sol modified exterior wall emulsion paint and preparation method thereof |
| CN102268208B (en) * | 2011-06-02 | 2013-07-17 | 沈阳顺风新城建筑材料有限公司 | Nanometer silica sol modified exterior wall emulsion paint and preparation method thereof |
| CN102311690B (en) * | 2011-08-02 | 2013-06-12 | 湖南湘江涂料集团有限公司 | Waterborne exterior elastic reflective heat insulation coating and production method thereof |
| CN102311690A (en) * | 2011-08-02 | 2012-01-11 | 湖南湘江涂料集团有限公司 | Waterborne exterior elastic reflective heat insulation coating and production method thereof |
| CN102732114B (en) * | 2012-06-08 | 2015-02-04 | 广州立邦涂料有限公司 | Road marking paint |
| CN102732117A (en) * | 2012-06-08 | 2012-10-17 | 广州立邦涂料有限公司 | Multifunctional water-base high light emulsion paint suitable for various substrates |
| CN102732114A (en) * | 2012-06-08 | 2012-10-17 | 广州立邦涂料有限公司 | Road marking paint |
| CN102732113A (en) * | 2012-06-08 | 2012-10-17 | 广州立邦涂料有限公司 | Light antiseptic latex paint |
| CN102732113B (en) * | 2012-06-08 | 2014-07-30 | 广州立邦涂料有限公司 | Light antiseptic latex paint |
| CN102732117B (en) * | 2012-06-08 | 2014-07-30 | 广州立邦涂料有限公司 | Multifunctional water-base high light emulsion paint suitable for various substrates |
| CN102690577A (en) * | 2012-06-15 | 2012-09-26 | 宁波华宝石节能建材有限公司 | Engineering latex paint |
| CN102690577B (en) * | 2012-06-15 | 2015-01-21 | 宁波华宝石节能科技股份有限公司 | Engineering latex paint |
| CN102850874A (en) * | 2012-08-10 | 2013-01-02 | 江苏紫石化工科技有限公司 | Sunlight-heat-reflecting flexible thermal insulation paint and preparation method thereof |
| CN104177954A (en) * | 2013-05-24 | 2014-12-03 | 铜仁市光彩漆业有限公司 | Oily exterior wall paint containing organosilicon |
| CN103834216A (en) * | 2014-03-19 | 2014-06-04 | 深圳市文浩建材科技有限公司 | Nano thermal insulation reflective coating additive for exterior wall |
| CN103834216B (en) * | 2014-03-19 | 2016-06-15 | 深圳市文浩建材科技有限公司 | A kind of exterior wall Nano-insulation reflective paint additive |
| CN104830177A (en) * | 2015-05-21 | 2015-08-12 | 田福东 | Novel waterproof coating |
| CN104893472A (en) * | 2015-06-15 | 2015-09-09 | 合肥启华环保科技有限公司 | Waterproof elastic latex paint for building external wall and preparation method of waterproof elastic latex paint |
| CN106085048A (en) * | 2016-06-08 | 2016-11-09 | 安徽真信涂料有限公司 | A kind of preparation method of thermal-insulating external-wall coating |
| CN107629594A (en) * | 2017-09-20 | 2018-01-26 | 芜湖县双宝建材有限公司 | A kind of Anti-cracking elastic emulsion paint |
| CN108641521A (en) * | 2018-06-13 | 2018-10-12 | 重庆文理学院 | A kind of anti-aging nano modification exterior wall latex paint and preparation method thereof |
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Open date: 20091111 |