CN100497493C - Double component anti-cracking outer wall putty - Google Patents
Double component anti-cracking outer wall putty Download PDFInfo
- Publication number
- CN100497493C CN100497493C CNB031087132A CN03108713A CN100497493C CN 100497493 C CN100497493 C CN 100497493C CN B031087132 A CNB031087132 A CN B031087132A CN 03108713 A CN03108713 A CN 03108713A CN 100497493 C CN100497493 C CN 100497493C
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- component
- cracking
- exterior wall
- wall putty
- putty
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- Expired - Fee Related
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Abstract
The double component anti-cracking outer wall putty includes two components. The component A consists of water 53-60 wt%, organic polymer 37-44 wt% and assistant 2.4-2.8 wt%; and the component B consists of regulator 0.5-0.8 wt%, reinforcing material 1.5-2.4 wt% and stuffing 96-98 wt%. The compounding ratio between component A and component B is 1 to 1.2-1.5. The putty has high solid content and white cement and thus relatively great thickness in once painting, and the addition of reinforcing fiber material and elastic emulsion component makes the putty possess raised anti-cracking performance.
Description
Technical field the present invention relates to a kind of building coating, especially a kind of two-pack anti-cracking putty of used for building exterior wall.
Background technology says that in a sense building coating is a kind of work in-process, is only final finished through the construction film forming attached to the coating on the basal plane.In this process, though putty is the supplementary material in the building coating coating process, it is in metope basic unit and play the vital role of bonding transition between filming, and is also bearing the important function that prevents metope cracking, the peeling of filming simultaneously.
At present there are a lot of problems in used greasy the giving of metope on the external wall,, efflorescence easy to crack such as construction, batch scrapes thickness deficiency, seediness or the like, and the variation owing to temperature, humidity simultaneously produces cracking.These problems and then will cause the application metope disadvantages such as paint film to occur have had a strong impact on the quality of external wall.
Summary of the invention for fundamentally avoid the metope of application exterior wall to ftracture, peeling, shedding and quality problems such as peel off, the selection of supplementary material---putty is very important.The invention discloses a kind of exterior wall putty of two-pack anti-cracking, this putty has thick matter, strong adhesion, intensity advantages of higher, has strengthened its splitting resistance greatly.
This two-pack anti-cracking exterior wall putty, it is formed by counting by weight percentage two components of A, B.The A component comprises the water of 53-60%, the organic high molecular polymer of 37-44%, the auxiliary agent of 2.4-2.8%; The B component comprises the adjusting material of 0.5-0.8%, the strongthener of 1.5-2.4%, 96-98% filler.Wherein:
The A component is A:B=1:1.2～1.5 with the ratio that cooperates of B component.
This anti-cracking exterior wall putty of the present invention, wherein, organic high molecular polymer in the A component is that solid content is at 45-60%, the acrylate copolymer emulsion of minimum film-forming temperature about 0-5 ℃, these copolymer emulsions can be that acrylate and methacrylic ester are main multipolymer elastic emulsion, also can select emulsions such as pure third, phenylpropyl alcohol for use.
Selected filler then is 400 order coarse whitings by 15-18% in the B component, the 400 order talcum powder of 30-33%, and the 425# white cement of 51-53% is formed.
Used auxiliary agent is by 20% wetting agent, 20% defoamer, and 60% freedom from cracking agent is formed, and well mixes to guarantee two components, guarantees that simultaneously their keep good performance in construction and drying process.
Used adjusting material can be selected the methylcellulose gum series products of molecular weight at 15000-30000 for use, mainly comes tackiness and the adjustment system viscosity of adjustment system to base material.
Used strongthener is that length is the polyacrylonitrile fibre of 1.0-3.0mm: the cross-sectional shape of this fiber is the peanut shape, vertically is the parallel cylindrical cylindricality, and length is the 0.5-12.0 millimeter, and fineness is the 1.5-2.5 dtex, and density is 1.18g/cm
3It is big to have fiber number, characteristics such as intensity height (tensile strength is more than 300Mpa), ductility good (limit elongation is 14-20%), good hydrophilic property, acid-alkali-corrosive-resisting, weathering resistance, photostabilization are good.
In preparation, two kinds of components of A, B are taked to prepare respectively.
The A component: earlier emulsion is added to the water under stirring condition, adds each analog assistant simultaneously, stirring then gets final product;
The B component; Get final product mixing in proportion after dicalcium powder, talcum powder, white cement and methylcellulose gum, the fiber weighing.
When using, at the scene A and B component are mixed in proportion to stir just can criticize and have scraped.
Compare with traditional exterior wall putty, the starting material that the present invention is selected, improved the solid content of finished product, used the big cement component of elastic emulsion and intensity, added the polyacrylonitrile staple fibre with strengthening action simultaneously, this just makes putty of producing can guarantee that enough once criticizing scrape thickness, thereby effectively prevents the putty layer cracking, reduce the probability of coating cracking, improved the quality of finishing system.And this putty also has advantages such as thick matter, strong adhesion, intensity is big, can be widely used in the exterior coating finishing system, especially to the demanding place of anti-cracking.
Embodiment
Embodiment:
A kind of anti-cracking exterior wall putty is made up of two kinds of components of A, B, and its content is as follows:
The A component:
24% water;
15% organic high molecular polymer emulsion CM-201;
0.2% wetting agent 436 (Cognis);
0.2% defoamer F50 (Cognis);
0.75% freedom from cracking agent 842DP/6 (Cognis):
The B component:
9% 400# water-ground limestone;
20% 400# talcum powder;
31% 425# white cement;
0.5% MC (Bayer)
1.0% 2mm filamentary material (road prestige 2000).
A and B are got final product with the A:B=1:1.5 mixing and stirring.
With greasy the giving with the scraper blade coating on the asbestos model for preparing, the putty sample of staple fibre is not added in contrast simultaneously, finds the greasy model moderate drying speed of giving of blade coating the present invention, and without any cracking phenomena, hardness is good, and intensity is big, and sticking power is good.This experimental result has illustrated that this exterior wall putty has advantages such as intensity is big, strong adhesion, compares with traditional putty, and splitting resistance is obviously strengthened.
Claims (5)
1, a kind of two-pack anti-cracking exterior wall putty, it is made up of two components of the A of counting by weight percentage, B, wherein the A component comprises 53%～60% water, 37～44% organic high molecular polymer and 2.4～2.8% auxiliary agent, organic high molecular polymer be solid content 45～60%, the acrylate copolymer emulsion of minimum film-forming temperature about 0～5 ℃; The B component comprises 0.5～0.8% methylcellulose gum, 1.5～2.4% polyacrylonitrile fibre and 96～98% filler, and filler is made up of 15～18% 400 order coarse whitings, 30～33% 400 order talcum powder and 51～53% 425# white cement; According to two kinds of components of mixed of A:B=1:1.2～1.5, just make this two-pack anti-cracking exterior wall putty.
2, two-pack anti-cracking exterior wall putty according to claim 1 is characterized in that: acrylate copolymer emulsion is the multipolymer elastic emulsion based on acrylate and methacrylic ester.
3, two-pack anti-cracking exterior wall putty according to claim 1 is characterized in that: auxiliary agent is by 20% wetting agent in the A component, 20% defoamer, and 60% freedom from cracking agent is formed.
4, two-pack anti-cracking exterior wall putty according to claim 1 is characterized in that: form this anti-cracking exterior wall putty, the A component is A:B=1:1.3～1.5 with the ratio that cooperates of B component.
5, two-pack anti-cracking exterior wall putty according to claim 1, it is characterized in that: used polyacrylonitrile fibre length is 0.5～12.0mm in the B component, and cross-sectional shape is the peanut shape, vertically is the parallel cylindrical cylindricality, fineness is 1.5～2.5 dtexs, and density is 1.18g/cm
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031087132A CN100497493C (en) | 2003-03-24 | 2003-03-24 | Double component anti-cracking outer wall putty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031087132A CN100497493C (en) | 2003-03-24 | 2003-03-24 | Double component anti-cracking outer wall putty |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1532232A CN1532232A (en) | 2004-09-29 |
| CN100497493C true CN100497493C (en) | 2009-06-10 |
Family
ID=34283161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031087132A Expired - Fee Related CN100497493C (en) | 2003-03-24 | 2003-03-24 | Double component anti-cracking outer wall putty |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100497493C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041751B (en) * | 2006-11-02 | 2010-05-12 | 董善刚 | Highly dynamic cracking resistant type elastic putty |
| CN104120847B (en) * | 2014-07-16 | 2016-08-31 | 南通四建集团有限公司 | A kind of concrete porous brick wall exempts to paint the construction method that batch putty processes |
| US10647859B2 (en) * | 2016-05-31 | 2020-05-12 | Akzo Nobel Coatings International B.V. | Two-component putty, method for coating a substrate with such putty, substrates coated with such putty |
| CN109608927A (en) * | 2018-12-25 | 2019-04-12 | 广东美涂士建材股份有限公司 | Water-proofing anticracking type putty and preparation method thereof |
| CN111560182A (en) * | 2020-05-30 | 2020-08-21 | 东联北方科技(北京)有限公司 | Exterior wall putty |
| CN112266727A (en) * | 2020-11-05 | 2021-01-26 | 湖南塑源特科技有限公司 | Casting coating with good crack resistance and preparation method thereof |
-
2003
- 2003-03-24 CN CNB031087132A patent/CN100497493C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1532232A (en) | 2004-09-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20160324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |