CN103756433A - Water-based exterior wall relief coating - Google Patents
Water-based exterior wall relief coating Download PDFInfo
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- CN103756433A CN103756433A CN201310698925.3A CN201310698925A CN103756433A CN 103756433 A CN103756433 A CN 103756433A CN 201310698925 A CN201310698925 A CN 201310698925A CN 103756433 A CN103756433 A CN 103756433A
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Abstract
The invention relates to a water-based exterior wall relief coating, which is formed by mixing of the following raw materials by mass percentage: 20-40% of a film forming matter; 0.5-5% of an anti-cracking reinforcing agent; 5-20% of a thickening agent; 30-60% of a filler; 0.5-2% of a dispersant; 0.1-0.5% of a defoaming agent; and the balance water. The production process of the coating includes: stirring the water, the thickening agent, bentonite, the defoaming agent and the dispersant according to the formula ratio evenly and slowly, then adding the filler and the anti-cracking reinforcing agent to conduct high speed dispersion for 30min, then adding an EVA emulsion and silica sol, and slowly stirring the mixture evenly to obtain the product. Due to the adding of the silica sol, the hardness of the coating is improved, and drying is accelerated. Compared with previous relief coatings, the water-based exterior wall relief coating provided by the invention not only shows the low cost advantage, but also has significantly improved performance and construction effects. The various materials are cheap and easily available, and the coating film has uniform, mellow and full spots, and is highly artistic and stereoscopic. Thus, the coating is a very promising exterior wall architectural coating.
Description
Technical field
The present invention relates to a kind of water-based exterior wall textured coating, belong to technical field of buildings.
Background technology
Along with the development of coatings industry, people have more and more higher requirement to coating property, one of the feature of environmental protection, the important development direction that ornamental, economy is coating.Textured coating is because having the spot varying in size, and stereoscopic sensation and visual sense of beauty can meet the day by day requirement of people to coatings decoration.Therefore, the market requirement is more and more prosperous.But a small amount of textured coating is main film forming substance mainly with pure-acrylic emulsion and benzene emulsion in the market, dry slow, difference of hardness, application property is bad and cost is high, has limited being widely used of textured coating.Therefore, developing low-cost, high performance exterior wall textured coating, have wide market outlook, caused people's concern.
Summary of the invention
The object of the present invention is to provide a kind of water-based exterior wall textured coating, adopting EVA emulsion, silicon sol is cheaply main film forming substance, add that various auxiliary agents and development of filler become to have good workability, hardness is high, water-tolerant, exterior wall textured coating cheaply, and by the actual use of engineering, textured coating spot size is even, surface is mellow and full, and stereoscopic sensation is strong.
To achieve these goals, technical scheme of the present invention is as follows.
A kind of water-based exterior wall textured coating, is mixed according to mass percent by following raw material: film forming matter: 20～40%; Crack-resisting reinforcing agent: 0.5～5%; Thickening material: 5～20%; Filler: 30～60%; Dispersion agent: 0.5～2%; Defoamer: 0.1～0.5%; Surplus is water.
Further, described film forming matter is the mixture of EVA emulsion and silicon sol, and the ratio of mixture of EVA emulsion and silicon sol is 1:1～4.Textured coating, as bottom-coating, is not very strict to the requirement of weathering resistance, as long as water-fast, can meet the demands with hardness.Therefore the present invention selects cheap and alkaline-resisting good domestic EVA emulsion.Meanwhile, for improving dried coating film speed and hardness of film, reduce material cost, in formula, add appropriate silicon sol as the second filmogen.
Further, described crack-resisting reinforcing agent is one or several in glass fibre, paper essence, tangerine rod fibers.Textured coating belongs to again thick coating, and in drying process, due to the volatilization of water, film shrinks easy to crack, therefore need to add enhancing anti-fissuring agent.
Further, the selection Natvosol of described thickening material, polyurethanes thickening material, bentonitic mixture, Natvosol, polyurethanes thickening material, bentonitic ratio of mixture are 1:1～3:0.5～2.The effect that thickening material not only can play thickening, reduce costs in coating.Meanwhile, thickening material gives fluid certain thixotropy, improves workability.Natvosol is widely used in water emulsion coating, and it is non-ionic water-soluble polymer, plays thickening, bonding, dispersion, stablizes texts in coating.Conventional hydroxy ethyl fiber have HBR-250, HP4400, ER-30MH, Q5000, H100000, HB30000, HB15000 etc.The Natvosol BH30000 of selection intermediate molecular weight and polyurethanes thickening material, the composite use of wilkinite.Because hydroxy ethyl fiber forms tridimensional network in water, make the thixotropy variation of coating.For this reason, in formula, add appropriate polyurethane thickener to improve the flow effect of fluid.In formula, add a small amount of wilkinite not only to play the effect that replaces part film forming matter, also can play thickening and improve the thixotropic dual function of fluid simultaneously, because wilkinite has laminate structure, after water suction in drying process, between crystal layer, can be coated a part of filler grain, with the film juxtaposition of emulsion, form reticulated structure, greatly improve viscosifying power and water resistance, thereby can reduce part emulsion amount; Meanwhile, due to bentonitic laminate structure, a little less than bond energy, easily dissociation, therefore moisture can easily enter in the middle of crystal layer, causes that crystal lattice orientation expands, and reaches thickening and improves mobile effect.
Further, described filler is one or several in coarse whiting, talcum powder, grey calcium powder, barite.Coarse whiting hardness is high, stable performance, therefore be one of first-selected filler; Talcum powder has needle-like or sheet structure, not only can play the effect of filler, and has certain enhancing cracking resistance effect, the glass fibre consumption that minimizing valency is expensive; Barite price is low, hardness good, be also one of filler of considering, but barite is than great, affects the storage of coating, therefore add-on should not be too large.Ash calcium powder main component is calcium oxide, after chance water, generates calcium hydroxide, generates calcium carbonate during dried coating film, and water resistance is good, but alkalescence is too high, and free Ca
2+can cause anionic emulsifier emulsion breaking, the stability of coating is had to certain influence, therefore also should not add too many.To low-cost Water-borne Rilievo, filler main separation coarse whiting, talcum powder, and to add appropriate barite and grey calcium powder be comparatively ideal filler combination.
Further, dispersion agent is selected phosphoric acid ester mixture.Dispersion agent plays and disperses and wetting double effects in coating dispersion process, and dispersion agent is selected the improper package stability that not only can affect coating, and makes coating produce flocculation, causes firmly and sinks to the bottom, and impact construction, can cause coating to scrap when serious.The principle that dispersion agent is selected be electric charge and the color stuffing of dispersion agent or emulsion institute is electrically charged should be as far as possible identical.This is because when flocculation occurs powder particle, because like charges repels each other, make powder particle maintain a certain distance and not flocculate, and suitable dispersion agent not only makes coating property stable, and can reduce material cost.
The production process of above-mentioned water-based exterior wall textured coating is: by even to the water of formula ratio, thickening material, wilkinite, defoamer, dispersion agent low rate mixing, add again filler, crack-resisting reinforcing agent high speed dispersion 30min, add EVA emulsion, silicon sol to stir well slowly after even to obtain this product.
This beneficial effect of the invention is: product of the present invention declines approximately 40% than same kind of products at abroad material cost, than domestic like product material cost, decline approximately 28%, construct in the said firm's office building and courtyard wall, embossment spot size is even, mellow and full, full, hardness is high, has stereoscopic sensation and artistic feeling.In the present invention, take EVA emulsion and silicon sol as main film forming substance, the cost of material is low, owing to making adding of silicon sol coating hardness improve, and dry quickening.Compared with textured coating in the past, not only shown the advantage that cost is low, and in performance and on construction effect, also improved a lot.Low being easy to get of various material valencys, its film spot is even, mellow and full and full, is rich in artistic feeling and stereoscopic sensation, is a kind of very promising outer wall building coating.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described, to better understand the present invention.
implement 1:
A kind of water-based exterior wall textured coating, is mixed according to mass percent by following raw material: film forming matter: 20%; Crack-resisting reinforcing agent: 0.5%; Thickening material: 5%; Filler: 60%; Dispersion agent: 2%; Defoamer: 0.1%; Surplus is water.
Described film forming matter is the mixture of EVA emulsion and silicon sol, and the ratio of mixture of EVA emulsion and silicon sol is 1:2.Described crack-resisting reinforcing agent is glass fibre, paper essence mixture.The selection Natvosol of described thickening material, polyurethanes thickening material, bentonitic mixture, Natvosol, polyurethanes thickening material, bentonitic ratio of mixture are 1:1:0.5.Described filler is coarse whiting, talcum powder mixture.Dispersion agent is selected phosphoric acid ester mixture.
The production process of above-mentioned water-based exterior wall textured coating is: by even to the water of formula ratio, thickening material, wilkinite, defoamer, dispersion agent low rate mixing, add again filler, crack-resisting reinforcing agent high speed dispersion 30min, add EVA emulsion, silicon sol to stir well slowly after even to obtain this product.
embodiment 2:
A kind of water-based exterior wall textured coating, is mixed according to mass percent by following raw material: film forming matter: 40%; Crack-resisting reinforcing agent: 5%; Thickening material: 20%; Filler: 30%; Dispersion agent: 0.5%; Defoamer: 0.15%; Surplus is water.
Described film forming matter is the mixture of EVA emulsion and silicon sol, and the ratio of mixture of EVA emulsion and silicon sol is 1:4.Described crack-resisting reinforcing agent is glass fibre, tangerine rod fibers mixture.The selection Natvosol of described thickening material, polyurethanes thickening material, bentonitic mixture, Natvosol, polyurethanes thickening material, bentonitic ratio of mixture are 1:2:2.Described filler is grey calcium powder, barite mixture.Described dispersion agent is selected phosphoric acid ester mixture.
The production process of above-mentioned water-based exterior wall textured coating is: by even to the water of formula ratio, thickening material, wilkinite, defoamer, dispersion agent low rate mixing, add again filler, crack-resisting reinforcing agent high speed dispersion 30min, add EVA emulsion, silicon sol to stir well slowly after even to obtain this product.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (7)
1. a water-based exterior wall textured coating, is characterized in that: by following raw material, according to mass percent, mixed: film forming matter: 20～40%; Crack-resisting reinforcing agent: 0.5～5%; Thickening material: 5～20%; Filler: 30～60%; Dispersion agent: 0.5～2%; Defoamer: 0.1～0.5%; Surplus is water.
2. a kind of water-based exterior wall textured coating according to claim 1, is characterized in that: described film forming matter is the mixture of EVA emulsion and silicon sol, the ratio of mixture of described EVA emulsion and silicon sol is 1:1～4.
3. a kind of water-based exterior wall textured coating according to claim 1, is characterized in that: described crack-resisting reinforcing agent is one or several in glass fibre, paper essence, tangerine rod fibers.
4. a kind of water-based exterior wall textured coating according to claim 1, it is characterized in that: the selection Natvosol of described thickening material, polyurethanes thickening material, bentonitic mixture, described Natvosol, polyurethanes thickening material, bentonitic ratio of mixture are 1:1～3:0.5～2.
5. a kind of water-based exterior wall textured coating according to claim 1, is characterized in that: described filler is one or several in coarse whiting, talcum powder, grey calcium powder, barite.
6. a kind of water-based exterior wall textured coating according to claim 1, is characterized in that: described dispersion agent is selected phosphoric acid ester mixture.
7. according to a kind of water-based exterior wall textured coating described in claim 1 to 6, it is characterized in that: the production process of above-mentioned water-based exterior wall textured coating is: by even to the water of formula ratio, thickening material, wilkinite, defoamer, dispersion agent low rate mixing, add again filler, crack-resisting reinforcing agent high speed dispersion 30min, add EVA emulsion, silicon sol to stir well slowly after even to obtain this product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698925.3A CN103756433A (en) | 2013-12-19 | 2013-12-19 | Water-based exterior wall relief coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698925.3A CN103756433A (en) | 2013-12-19 | 2013-12-19 | Water-based exterior wall relief coating |
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| CN103756433A true CN103756433A (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310698925.3A Pending CN103756433A (en) | 2013-12-19 | 2013-12-19 | Water-based exterior wall relief coating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804606A (en) * | 2015-05-12 | 2015-07-29 | 重庆市品胜涂料有限公司 | Anaglyphic paint and preparation method thereof |
| CN105236825A (en) * | 2015-09-10 | 2016-01-13 | 三棵树涂料股份有限公司 | External wall particle type texture coating material and preparation method thereof |
| CN107216795A (en) * | 2017-07-19 | 2017-09-29 | 太仓市双凤镇薄彩工艺品厂 | A kind of glass coating film of anti-cracking |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598267A (en) * | 1979-01-19 | 1980-07-26 | Yabuhara Sangyo Kk | Relief pattern coating composition for trowel finishing |
| CN1092443A (en) * | 1993-03-15 | 1994-09-21 | 河南省新乡市建筑材料科学研究所 | Relief building paint |
| CN1323863A (en) * | 2001-06-03 | 2001-11-28 | 廖劲松 | Weather resisting wall paint |
-
2013
- 2013-12-19 CN CN201310698925.3A patent/CN103756433A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598267A (en) * | 1979-01-19 | 1980-07-26 | Yabuhara Sangyo Kk | Relief pattern coating composition for trowel finishing |
| CN1092443A (en) * | 1993-03-15 | 1994-09-21 | 河南省新乡市建筑材料科学研究所 | Relief building paint |
| CN1323863A (en) * | 2001-06-03 | 2001-11-28 | 廖劲松 | Weather resisting wall paint |
Non-Patent Citations (1)
| Title |
|---|
| 徐世前: "低成本水性外墙浮雕涂料", 《中国涂料》, vol. 20, no. 5, 31 May 2005 (2005-05-31), pages 40 - 42 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804606A (en) * | 2015-05-12 | 2015-07-29 | 重庆市品胜涂料有限公司 | Anaglyphic paint and preparation method thereof |
| CN105236825A (en) * | 2015-09-10 | 2016-01-13 | 三棵树涂料股份有限公司 | External wall particle type texture coating material and preparation method thereof |
| CN107216795A (en) * | 2017-07-19 | 2017-09-29 | 太仓市双凤镇薄彩工艺品厂 | A kind of glass coating film of anti-cracking |
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Application publication date: 20140430 |