CN1408790A - Anti-cracking outer wall mastic - Google Patents
Anti-cracking outer wall mastic Download PDFInfo
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- CN1408790A CN1408790A CN 01127504 CN01127504A CN1408790A CN 1408790 A CN1408790 A CN 1408790A CN 01127504 CN01127504 CN 01127504 CN 01127504 A CN01127504 A CN 01127504A CN 1408790 A CN1408790 A CN 1408790A
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- exterior wall
- frostproofer
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Abstract
The anti-cracking outer wall mastic consists of elastic polyacrylate emulsion, zinc oxide or white carbon black, filter, densifier and dispersion stabilizer as well as rutile type titanium white, quartz powder, double-ground powder, talcum powder and water. It has high elasticity, high tensile strnegth, high adhesion force and relatively high unit elongation, and can resist the crack produced in the base layer and permeate moisture to avoid bubble and peeling off. The present invention makes wall beautiful, no cracking and no accumulation of alkali in the surface.
Description
Technical field
The present invention relates to a kind of coating and preparation method thereof, particularly relate to a kind of exterior wall putty and preparation method thereof.
Background technology
Existing exterior wall putty adopts cement plaster more, and its main component is 107 building glue and white cements.This cement plaster after construction through half a year even shorter time producing be full of cracks; thereby make the exterior wall surface discrepitate; not only influenced the attractive in appearance of exterior wall; and greatly reducing the provide protection of outer wall paint, this is because the character of cement itself is ultimate compression strength height but tensile strength is low determines.Use cement plaster in addition, the easy accumulation of salt in the surface soil of exterior wall surface grows dim.The present exterior wall putty made such as also useful aqueous polyvinyl acetate emulsion or 107 building glue, old powder, dry powder, but with this putty criticize the easy efflorescence of metope water breakthrough of scraping, bulging, peel off.
Summary of the invention
The anti-cracking outer wall mastic that the purpose of this invention is to provide a kind of good springiness, strong adhesion makes its not efflorescence after construction, does not play drum, does not peel off.
Another object of the present invention provides a kind of method for preparing above-mentioned exterior wall putty.
For achieving the above object, the present invention adopts following technical scheme: a kind of anti-cracking outer wall mastic, contain following component, its proportioning is weight percentage: the polyacrylate dispersion 20%～35% of band caoutchouc elasticity, zinc oxide or white carbon black 2%～5%, fiber 3%～5% and an amount of thickening material, dispersion stabilizer.
Also contain Rutile type Titanium Dioxide 5%～10%, silica powder 20%～30%, dry powder 10%～15%, talcum powder 10%～15%, water 15%～20%.
Also contain an amount of mould inhibitor and frostproofer.
Amount of thickener is 0.2%～0.5%, and the stably dispersing agent content is 0.2%～0.3%, and mould inhibitor content is 0.1%～0.2%, and frostproofer content is 1.5%～2%.
Mierocrystalline cellulose adopts polypropylene fiber, aramid fiber or glass fibre, thickening material adopts the molten ACRYLIC EMULSION of alkali, Natvosol or carboxymethyl cellulose, dispersion stabilizer adopts Sodium hexametaphosphate 99 or sodium polymethacrylate, mould inhibitor adopts sodium pentachlorophenate or m-tetrachlorophthalodinitrile or isothiazolones, and frostproofer adopts ethylene glycol or propylene glycol.
The method for preparing above-mentioned exterior wall putty is: thickening material, dispersion stabilizer, mould inhibitor, frostproofer and the water adding stirrer of above-mentioned weight proportion are mixed back adding polyacrylate dispersion under high-speed stirring, its mixture is added kneader, add titanium dioxide, dry powder, talcum powder, silica powder, zinc oxide or white carbon black and fiber simultaneously, stir through kneader, afterwards said mixture is become the equally distributed body of paste of fiber and gets final product through three-roll grinder grinding, low-speed mixer stirring.
The present invention has adopted the polyacrylate dispersion of band caoutchouc elasticity, because the unit elongation behind this emulsion drying and forming-film can reach 500%～600%, thereby makes the present invention have the elasticity height, tensile strength is big, strong adhesion has higher unit elongation, can resist be full of cracks and minute crack that basic unit produces.Owing to added fiber, it behind the exterior wall putty drying and forming-film of the present invention the crisscross equally distributed fine-structure mesh trellis of fiber, such structure can not only significantly improve tensile strength of the present invention and rigidity, and can reduce contraction, improves heat-drawn wire and low temperature impact strength.The adding of fiber and silica powder has simultaneously also increased the ventilation property of anti-cracking outer wall mastic, makes it than under the wet environment, and steam more easily appears, and has been difficult for bulging and peels off.After tested, exterior wall putty ageing resistance of the present invention is good, temper(ing) seven all flawlesses, and nondiscoloration, cohesiveness, elasticity are good, and the not efflorescence in 4～5 days of the bubble of water logging does not simultaneously play drum, does not peel off.Test result sees Table one.Use anti-cracking outer wall mastic of the present invention to criticize the metope of scraping, overall appearance does not have be full of cracks and accumulation of salt in the surface soil phenomenon, and because the provide protection of anti-cracking outer wall mastic, wall face can significantly be resisted rainwater, ultraviolet erosion, has prolonged work-ing life greatly.
Table one
| ????1 | State in container | After stirring, be uniform state, do not have caking |
| ????2 | Application property | Blade coating is accessible |
| ????3 | Time of drying | ≤ 3 hours |
| ????4 | Water tolerance | After the test in 48 hours, the coating flawless, bubble, peel off, do not have softening thing and separate out |
| ????5 | Alkali resistance | After the test in 24 hours, the coating flawless, bubble, peel off, do not have softening thing and separate out |
| ????6 | Cohesive strength | ????≥0.60MPa |
| ????7 | Dry splitting resistance of initial stage | Crackle does not appear |
| ????8 | Freeze-thaw resistance | Behind 10 freezing and thawing tests, the coating flawless, bubble, peel off |
| ????9 | Snappiness | The crooked putty of diameter 50mm surface flawless |
Embodiment
Embodiment 1: press following weight batching:
Polyacrylate dispersion 250kg, the Rutile type Titanium Dioxide 80kg of band caoutchouc elasticity, dry powder 150kg, talcum powder 100kg, silica powder 200kg, white carbon black 20kg, polypropylene fiber 30kg, water 150kg, Natvosol 2kg, Sodium hexametaphosphate 99 2kg, sodium pentachlorophenate 1kg, ethylene glycol 15kg.
Natvosol, Sodium hexametaphosphate 99, sodium pentachlorophenate, ethylene glycol and the water of above-mentioned weight are added stirrer mixes back adding band caoutchouc elasticity under high-speed stirring polyacrylate dispersion, its mixture is added kneader, add titanium dioxide, dry powder, talcum powder, silica powder, white carbon black and polypropylene fiber simultaneously, stir through kneader, afterwards said mixture is ground, stirs through low-speed mixer and become even body of paste and get final product through three-roll grinder.
Embodiment 2: press following weight batching:
Polyacrylate dispersion 350kg, Rutile type Titanium Dioxide 50kg, dry powder 100kg, talcum powder 100kg, silica powder 100kg, zinc oxide 50kg, aramid fiber 50kg, water 170kg, carboxymethyl cellulose 5kg, sodium polymethacrylate 3kg, m-tetrachlorophthalodinitrile 2kg, the propylene glycol 20kg of band caoutchouc elasticity.
Carboxymethyl cellulose, sodium polymethacrylate, m-tetrachlorophthalodinitrile, propylene glycol and the water of above-mentioned weight are added stirrer mixes back adding band caoutchouc elasticity under high-speed stirring polyacrylate dispersion, its mixture is added kneader, add titanium dioxide, dry powder, talcum powder, silica powder, zinc oxide and aramid fiber simultaneously, stir through kneader, afterwards said mixture is ground, stirs through low-speed mixer and become even body of paste and get final product through three-roll grinder.
Embodiment 3: press following weight batching:
Polyacrylate dispersion 200kg, the Rutile type Titanium Dioxide 100kg of band caoutchouc elasticity, dry powder 120kg, talcum powder 150kg, silica powder 130kg, zinc oxide 40kg, glass fibre 40kg, water 200kg, the molten ACRYLIC EMULSION of alkali (in the ammoniacal liquor and back) 2kg, sodium polymethacrylate 2kg, isothiazolones 1kg, ethylene glycol 15kg.
The molten ACRYLIC EMULSION of the alkali of above-mentioned weight (in the ammoniacal liquor and back), sodium polymethacrylate, isothiazolones, ethylene glycol and water are added stirrer under high-speed stirring, mix the polyacrylate dispersion that the back adds the band caoutchouc elasticity, its mixture is added kneader, add titanium dioxide, dry powder, talcum powder, silica powder, zinc oxide and glass fibre simultaneously, stir through kneader, afterwards said mixture is become even body of paste and gets final product through three-roll grinder grinding, low-speed mixer stirring.
The fineness of the silica powder in the foregoing description is preferably between 80 orders～120 orders, and staple length is 1～2cm.The polyacrylate dispersion of band caoutchouc elasticity can adopt commercially available BA163 pure-acrylic emulsion or BA154 pure-acrylic emulsion.
Claims (6)
1, a kind of anti-cracking outer wall mastic, it is characterized in that, contain following component, its proportioning is weight percentage: the polyacrylate dispersion 20%～35% of band caoutchouc elasticity, zinc oxide or white carbon black 2%～5%, fiber 3%～5% and an amount of thickening material, dispersion stabilizer.
2, exterior wall putty as claimed in claim 1 is characterized in that, also contains Rutile type Titanium Dioxide 5%～10%, silica powder 20%～30%, dry powder 10%～15%, talcum powder 10%～15%, water 15%～20%.
3, exterior wall putty as claimed in claim 1 or 2 is characterized in that, also contains an amount of mould inhibitor and frostproofer.
4, exterior wall putty as claimed in claim 3 is characterized in that, amount of thickener is 0.2%～0.5%, and the stably dispersing agent content is 0.2%～0.3%, and mould inhibitor content is 0.1%～0.2%, and frostproofer content is 1.5%～2%.
5, exterior wall putty as claimed in claim 4, it is characterized in that, Mierocrystalline cellulose adopts polypropylene fiber, aramid fiber or glass fibre, thickening material adopts the molten ACRYLIC EMULSION of alkali, Natvosol or carboxymethyl cellulose, dispersion stabilizer adopts Sodium hexametaphosphate 99 or sodium polymethacrylate, mould inhibitor adopts sodium pentachlorophenate or m-tetrachlorophthalodinitrile or isothiazolones, and frostproofer adopts ethylene glycol or propylene glycol.
6, a kind of preparation claim 3, the method of 4 or 5 described anti-cracking outer wall mastics, it is characterized in that, thickening material with above-mentioned weight proportion, dispersion stabilizer, mould inhibitor, frostproofer and water add stirrer and mix the polyacrylate dispersion that the back adds the band caoutchouc elasticity under high-speed stirring, its mixture is added kneader, add titanium dioxide simultaneously, dry powder, talcum powder, silica powder, zinc oxide or white carbon black and fiber, stir through kneader, afterwards said mixture is ground through three-roll grinder, the low-speed mixer stirring becomes the equally distributed body of paste of fiber and gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011275049A CN1150283C (en) | 2001-09-24 | 2001-09-24 | Anti-cracking outer wall mastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011275049A CN1150283C (en) | 2001-09-24 | 2001-09-24 | Anti-cracking outer wall mastic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1408790A true CN1408790A (en) | 2003-04-09 |
| CN1150283C CN1150283C (en) | 2004-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011275049A Expired - Fee Related CN1150283C (en) | 2001-09-24 | 2001-09-24 | Anti-cracking outer wall mastic |
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| CN (1) | CN1150283C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009127096A1 (en) * | 2008-04-15 | 2009-10-22 | Lin Wansheng | Seamless water-based coating for wallpaper and the method thereof |
| CN105733338A (en) * | 2016-04-27 | 2016-07-06 | 谭钰良 | Anti-cracking putty for external walls |
| CN108467277A (en) * | 2018-05-28 | 2018-08-31 | 苏州佑君环境科技有限公司 | A kind of preparation method of cracking resistance foamed concrete plate |
| CN110408257A (en) * | 2019-08-30 | 2019-11-05 | 陕西龙宾立德新材料科技有限公司 | A kind of anti-crack putty and preparation method thereof |
| CN111995938A (en) * | 2020-08-21 | 2020-11-27 | 中车长春轨道客车股份有限公司 | Aramid fiber putty and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544856B (en) * | 2009-05-04 | 2012-09-26 | 广福建材（蕉岭）精化有限公司 | External wall putty |
-
2001
- 2001-09-24 CN CNB011275049A patent/CN1150283C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009127096A1 (en) * | 2008-04-15 | 2009-10-22 | Lin Wansheng | Seamless water-based coating for wallpaper and the method thereof |
| CN105733338A (en) * | 2016-04-27 | 2016-07-06 | 谭钰良 | Anti-cracking putty for external walls |
| CN108467277A (en) * | 2018-05-28 | 2018-08-31 | 苏州佑君环境科技有限公司 | A kind of preparation method of cracking resistance foamed concrete plate |
| CN110408257A (en) * | 2019-08-30 | 2019-11-05 | 陕西龙宾立德新材料科技有限公司 | A kind of anti-crack putty and preparation method thereof |
| CN111995938A (en) * | 2020-08-21 | 2020-11-27 | 中车长春轨道客车股份有限公司 | Aramid fiber putty and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1150283C (en) | 2004-05-19 |
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Granted publication date: 20040519 Termination date: 20100924 |