CN105255293A - Novel outer wall renovation coating and preparation method thereof - Google Patents
Novel outer wall renovation coating and preparation method thereof Download PDFInfo
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- CN105255293A CN105255293A CN201510740280.4A CN201510740280A CN105255293A CN 105255293 A CN105255293 A CN 105255293A CN 201510740280 A CN201510740280 A CN 201510740280A CN 105255293 A CN105255293 A CN 105255293A
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Abstract
The invention discloses a novel outer wall renovation coating and a preparation method thereof. The novel outer wall renovation coating is prepared from silicon modified propylene emulsion, a preservative, a multifunctional additive, rutile nano TiO2 and natural flaky mountain flour. The preparation method comprises the following steps: rapidly stirring the silicon modified propylene emulsion, slowly adding the preservative and the multifunctional additive in the stirring process, after addition, continuously stirring, increasing the stirring speed, adding rutile nano TiO2, performing high-speed stirring for dispersion, reducing the stirring speed, and adjusting the color; detecting the coating after color adjustment, thereby obtaining the novel outer wall renovation coating after the standard is met. Due to the adoption of the subtraction principle, cellulose, a dispersing agent, a wetting agent, a filming additive, an anti-freezing agent, a leveling agent or a defoaming agent is not used, so that the novel outer wall renovation coating is good in freezing resistance stability, uniform to stably disperse, small in foam amount, resistant to crack, excellent in waterproof property, good in seepage force, environment-friendly and practical, simple to construct, rapid to dry, uniform in color, resistant to peeling and water seepage and clean, and the service life of the novel outer wall renovation coating can be longer than 10 years.
Description
Technical field
The present invention relates to technical field of paint preparation, specifically a kind of exterior wall retrofit coating and preparation method thereof.
Background technology
During general outer wall water-based coating formulating of recipe, adopt addition principle, in order to construct, store and performance need all can add the expensive auxiliary agent of a large amount of valency.These auxiliary agents are concerning all essential general formula, but not only valency is expensive for these auxiliary agents, and have a strong impact on the quality after exterior coating film forming.
Water-based exterior wall paint adds the fiber of some thousandths of, and Mierocrystalline cellulose has water conservation, anti-settling, good construction action, but Mierocrystalline cellulose can reduce the water resistance of paint film, to water sensitive, mastic coatings can be caused to turn white, meet water and feel like jelly, thin coatings bubbles, and water resistance is poor, causes accumulation of salt in the surface soil variable color.Dispersion agent is the auxiliary agent of water-borne coatings design, and its effect reduces jitter time, makes color stuffing become primary particle by state of aggregation and protect stable; increase paint-flow simultaneously; reduce the consumption of water, but dispersion agent water-fast variation after causing coating film forming equally, meet the problem of water variable color deliquescing.Wetting agent is also the auxiliary agent that a lot of water-borne coatings slip-stick artist adopts, the dispersion color stuffing time is shortened in its effect, color stuffing is made not cause secondary to flocculate, color developing is good, adding of wetting agent makes coating film forming closely knit not, form the free Vomitory of moisture content, therefore it has considerable influence to the life-span of paint film.
China is from the eighties in last century, and particularly real estate high speed development after 2000, has a large amount of buildingss to employ exterior coating.Exterior coating general work-ing life is 5 ~ 15 years, visits in market in recent years according to us, and exterior wall is flat is coated with ubiquity be full of cracks, variable color, come off, seep water, dirty, efflorescence, play the problems such as drum, and urgent need is renovated.Exterior wall embossment, plucking, texture, true mineral varnish, colorfully there are the problems referred to above equally.The Economic development of current China slows down, and Real Estate Development is difficult, and amount valency falls together, and Coating Market reduces, and produces house and increases, and therefore competition is abnormal fierce.So there is a lot of large coating producer to take a broad view coating renovation market, the family as how happy scholar is easily coated with, the refreshing service of ippon, and stresses interior wall renovation.For this reason, the present inventor, by adopting subtraction principle, bases oneself upon a kind of saving of labor of exploitation, material-saving, effectively exterior wall retrofit coating.
Summary of the invention
The object of the present invention is to provide a kind of exterior wall retrofit coating and preparation method thereof, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of exterior wall retrofit coating, is made up according to massfraction of following raw material: Si modification acrylic latex 35 ~ 45%, sanitas 0.15 ~ 0.25%, multifunctional assistant 0.05 ~ 0.15%, rutile type nano TiO
21.8 ~ 2.2%, natural flake stone flour 50 ~ 65%.
As the further scheme of the present invention: described sanitas is isothiazole spirit ketone.
As the present invention's further scheme: described multifunctional assistant by massfraction be 99.9% 18 carbochain organic alcohol amine and 0.1% water form.
A preparation method for exterior wall retrofit coating, concrete preparation process is as follows:
(1) first weigh up Si modification acrylic latex, start homogenizer, carry out rapid stirring, stirring velocity controls at 500 ~ 600r/min;
(2) in the process stirred, slowly add sanitas and multifunctional assistant, after adding, continue stirring 12 ~ 18min,
(3) speed governing is to 1200r/min, adds rutile type nano TiO
2, high-speed stirring dispersion 15 ~ 25min, speed governing to 600 ~ 800r/min, and is mixed colours;
(4) detect the coating after toning, treat that the fineness of looking into of coating is less than or equal to 50um, the positive and negative 2Ku of viscosity 80ku, opacifying power is more than or equal to 93%.
Compared with prior art, the invention has the beneficial effects as follows: the present invention adopts subtraction principle, do not use Mierocrystalline cellulose, dispersion agent, wetting agent, film coalescence aid, frostproofer, flow agent, defoamer, there is good resistance to freezing stability, dispersed stable, foam volume is few, cracking resistance, there is excellent water resistance and good seepage force, environmental protection is practical, and construction is simple, fast drying, color even one to, do not peel, do not seep water, completely guarantee more than 10 years.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Exterior wall retrofit coating, is made up of the raw material of following weight: Si modification acrylic latex 35kg, sanitas isothiazole spirit ketone 0.15kg, multifunctional assistant 0.05kg, rutile type nano TiO
21.8kg, natural flake stone flour 63kg.
Multifunctional assistant by massfraction be 99.9% 18 carbochain organic alcohol amine and 0.1% water form.
Embodiment 2
Exterior wall retrofit coating, is made up of the raw material of following weight: Si modification acrylic latex 40kg, isothiazole spirit ketone 0.2kg, multifunctional assistant 0.1kg, rutile type nano TiO
22kg, natural flake stone flour 57.5kg%.
Multifunctional assistant by massfraction be 99.9% 18 carbochain organic alcohol amine and 0.1% water form.
Embodiment 3
Exterior wall retrofit coating, is made up of the raw material of following weight: Si modification acrylic latex 45%, isothiazole spirit ketone 0.25%, multifunctional assistant 0.15%, rutile type nano TiO
22.2%, natural flake stone flour 52.4%.
Multifunctional assistant by massfraction be 99.9% 18 carbochain organic alcohol amine and 0.1% water form.
The preparation method of above-mentioned exterior wall retrofit coating, concrete preparation process is as follows:
(1) first weigh up Si modification acrylic latex, start homogenizer, carry out rapid stirring, stirring velocity controls at 600r/min;
(2) in the process stirred, slowly add sanitas and multifunctional assistant, continue after adding to stir 15min,
(3) speed governing is to 1200r/min, adds rutile type nano TiO
2, high-speed stirring dispersion 20min, speed governing to 800r/min, and is mixed colours;
(4) detect the coating after toning, treat that the fineness of looking into of coating is less than or equal to 50um, the positive and negative 2Ku of viscosity 80ku, opacifying power is more than or equal to 93%.
The present invention adopts subtraction principle, does not use fiber, utilizes latex self and water retaining function, makes it have good construction local; The kaolin of the mica powder of sheet used, raphioid fiber shape talcum powder and anti-settling solves its sedimentation.
The Si modification acrylic latex used has self-emulsifying function, adopts Si modification acrylic latex that is high-elastic and force of cohesion to act as membrane substance, has excellent cracking resistance, fills out the performance in crack, enable color stuffing not reflocculation, and color development is good, stable.This product adopts the polymkeric substance of low film formation temperature, has good resistance to freezing stability simultaneously, and therefore without the need to membrane-forming agent and frostproofer, VO discharges close to 0, more environmental protection.
The inapplicable dispersion agent of coating, utilizes the emulsion dispersion function of latex itself, makes color stuffing dispersed stable, eliminates the negative interaction of dispersion agent.
Due to cellulose-less, dispersion agent, wetting agent in this coating, therefore foam generation greatly reduces, and does not therefore need defoamer to carry out froth breaking.Have excellent water resistance, latex particle size < 50um, has good seepage force, alkali resistant function, therefore with after this product, does not need first priming, only dust need be removed.
The function that this coating has;
1, cracking resistance, covers the crackle being less than 0.2um, and this product adopts high strength and high flexibility pure silicon modified propylene emulsion, and elongation reaches 3 times, and intensity reaches 10KPa;
2, excellent water resistance, exempts from waterproof layer, Si modification acrylic latex, and make buildings form one deck organic film, water molecules can not penetrate, after therefore using this product, and no longer will brush waterproof paint;
3, exempt from priming paint, this product pure third latex particle size used is little, and infiltration is strong, can effectively stop that alkalescence glows;
4, environmental protection, this product reduces the use of most auxiliary agent, makes its environmental protection greatly be better than like product;
5, construction is simple, less manpower, as long as use this product spray one time or roll one time;
6, construction is very simple, normal only need spray one time or roll one time just passable, greatly save labour cost and shorten construction period;
7, fast drying, dry 4h wanted by general coating, can resistance to rain brush, as long as the general weather 2h of this product;
8, use this product renovate after, old crackle loses, or else can produce new crackle, color even one to, do not peel, do not seep water, completely guarantee more than 10 years.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
Claims (4)
1. an exterior wall retrofit coating, is characterized in that, is made up according to massfraction of following raw material: Si modification acrylic latex 35 ~ 45%, sanitas 0.15 ~ 0.25%, multifunctional assistant 0.05 ~ 0.15%, rutile type nano TiO
21.8 ~ 2.2%, natural flake stone flour 50 ~ 65%.
2. exterior wall retrofit coating according to claim 1, is characterized in that, described sanitas is isothiazole spirit ketone.
3. exterior wall retrofit coating according to claim 1, is characterized in that, described multifunctional assistant by massfraction be 99.9% 18 carbochain organic alcohol amine and 0.1% water form.
4. a preparation method for exterior wall retrofit coating as claimed in claim 1, is characterized in that, concrete preparation process is as follows:
(1) first weigh up Si modification acrylic latex, start homogenizer, carry out rapid stirring, stirring velocity controls at 500 ~ 600r/min;
(2) in the process stirred, slowly add sanitas and multifunctional assistant, after adding, continue stirring 12 ~ 18min,
(3) speed governing is to 1200r/min, adds rutile type nano TiO
2, high-speed stirring dispersion 15 ~ 25min, speed governing to 600 ~ 800r/min, and is mixed colours;
(4) detect the coating after toning, treat that the fineness of looking into of coating is less than or equal to 50um, the positive and negative 2Ku of viscosity 80ku, opacifying power is more than or equal to 93%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510740280.4A CN105255293A (en) | 2015-11-05 | 2015-11-05 | Novel outer wall renovation coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510740280.4A CN105255293A (en) | 2015-11-05 | 2015-11-05 | Novel outer wall renovation coating and preparation method thereof |
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| CN105255293A true CN105255293A (en) | 2016-01-20 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177554A (en) * | 2006-11-10 | 2008-05-14 | 北京化工大学 | Preparation method of antibiotic anti-fungus agent for building surface |
| CN102127353A (en) * | 2010-01-13 | 2011-07-20 | 亚士漆(上海)有限公司 | High-pollution-resistant high-silicon coating special for bridges and overhead roads |
| CN102690576A (en) * | 2012-06-14 | 2012-09-26 | 广州市福田化学工业涂料有限公司 | Seepage-proofing thermal-insulating coating and preparing method thereof |
| CN102815888A (en) * | 2012-08-14 | 2012-12-12 | 中华制漆（深圳）有限公司 | Coating with characteristics of ceramic color and quartz sand texture, preparation method and application thereof |
| CN104692707A (en) * | 2015-01-29 | 2015-06-10 | 三棵树涂料股份有限公司 | Functional real stone paint building exterior wall coating material and preparation method thereof |
-
2015
- 2015-11-05 CN CN201510740280.4A patent/CN105255293A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177554A (en) * | 2006-11-10 | 2008-05-14 | 北京化工大学 | Preparation method of antibiotic anti-fungus agent for building surface |
| CN102127353A (en) * | 2010-01-13 | 2011-07-20 | 亚士漆(上海)有限公司 | High-pollution-resistant high-silicon coating special for bridges and overhead roads |
| CN102690576A (en) * | 2012-06-14 | 2012-09-26 | 广州市福田化学工业涂料有限公司 | Seepage-proofing thermal-insulating coating and preparing method thereof |
| CN102815888A (en) * | 2012-08-14 | 2012-12-12 | 中华制漆（深圳）有限公司 | Coating with characteristics of ceramic color and quartz sand texture, preparation method and application thereof |
| CN104692707A (en) * | 2015-01-29 | 2015-06-10 | 三棵树涂料股份有限公司 | Functional real stone paint building exterior wall coating material and preparation method thereof |
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Application publication date: 20160120 |