CN101429401A - High-performance waterproof coating material of cement based polymer - Google Patents
High-performance waterproof coating material of cement based polymer Download PDFInfo
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- CN101429401A CN101429401A CNA2007101694503A CN200710169450A CN101429401A CN 101429401 A CN101429401 A CN 101429401A CN A2007101694503 A CNA2007101694503 A CN A2007101694503A CN 200710169450 A CN200710169450 A CN 200710169450A CN 101429401 A CN101429401 A CN 101429401A
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Abstract
The invention relates to a paint, in particular to a waterproof paint of a high-performance cement-based polymer, which consists of component A and component B in weight percentage, wherein the component A comprises 97.5 to 98 percent of acrylic emulsion, 0.8 to 1 percent of antifoaming agent, 0.5 to 0.8 percent of dispersant, 0.2 to 0.4 percent of lignocellulose, 0.1 to 0.3 percent of polypropylene fiber, and 0.05 to 0.15 percent of bactericide; and the component B comprises 55 to 62 percent of 325-type black cement, 28 to 32 percent of quartz sand of 200 meshes, 8 to 13 percent of coarse whiting of 325 meshes, and 0.1 to 0.3 percent of water reducer. The blending proportion of A to B is between 1 to 1.2 and 1 to 1.5 during construction. The paint has the performances of excellent weather resistance and water resisting property, high tensile strength, efficient water prevention, and the like. And the paint does not use an enhancement layer during construction, has good binding force among coatings, and saves time and labor.
Description
Technical field the present invention relates to a kind of coating, and particularly a kind of high-performance waterproof coating material of cement based polymer is used for waterproof such as kitchen, toilet, aspect, belongs to the chemistry painting industry technical field.
The existing cement class of background technology waterproof coating material of cement based polymer gelling material intensity height has advantages such as polymer coating film elasticity is big again, and is solvent with water.Have advantages such as easy construction, aqueous, environmental protective, adaptability be strong.Since coming out, promptly obtained using widely.But there are problems such as poor water resistance, weathering resistance is poor, tensile strength is low in this series products.Therefore, it is necessary to invent a kind of high-performance waterproof coating material of cement based polymer.
Summary of the invention the purpose of this invention is to provide a kind of high-performance waterproof coating material of cement based polymer, and this product not only has high-weatherability, also has advantages such as water-tolerant, high-effective water-proof, and need not to add enhancement layer in the construction process.
A kind of high-performance waterproof coating material of cement based polymer is counted by weight percentage two components of A, B:
A component: ACRYLIC EMULSION: 97.5-98%; Defoamer: 0.8-1%; Dispersion agent: 0.5-0.8%; Lignocellulose: 0.2-0.4%; Polypropylene fibre: 0.1-0.3%; Sterilant: 0.05-0.15%;
B component: 325# black cement: 55-62%; 200 order quartz sand: 28-32%; 325 order coarse whiting: 8-13%; Water reducer: 0.1-0.3%.
The A component with the ratio that cooperates of B component is: A:B=1:1.2-1.5
Principle of the present invention is based on the dehydration of elastomeric polymer emulsion and becomes has cohesiveness and successional elasticity is filmed, cement absorbs the water in the middle of the emulsion and hardens, elastic polymeric coating and hardening of cement body run through mutually and firm be bonded to high water-fast, high tenacity, a high-effective water-proof and film, elastic polymkeric substance is filled in the middle of the space of hardening of cement body, the snappiness that made hardening of cement and tool, and the hardening of cement body has also improved the hardness of filming in the middle of being filled in polymkeric substance.
The emulsion that the present invention uses is the acrylate copolymer of no softening agent, and solids content is 54-56%, and minimum film-forming temperature is about-25 ℃.Can improve the flexibility of cement, and have good water-fast, alkaline-resisting and sticking power, and this emulsion is the pure acrylic acid copolymer resins, water-proof emulsion EVA system, SBR system, the styrene/acrylic used with tradition are that the resin geometric ratio has excellent weathering resistance, weather resistance.
The lignocellulose length that the present invention uses is 300-400um, and density is 0.8 ~ 1.3g/cm
3Have excellent workability, performance is weighed down in anti-current, improves tensile strength of material, and can play good cracking resistance effect.
The polypropylene fibre that the present invention uses is process special reel off raw silk from cocoons production technique and surface-treated 100% polypropylene, and length is among the 6-8mm.Can improve the bond stress with cement material, the waterproof paint ultimate elongation rate that is mixed with fiber is improved, thereby greatly improve the tensile strength of waterproof paint.In addition, this fiber can be easy to rapidly mix with coating, is the monofilament state and is evenly distributed in the system, forms a uniform three-dimensional netted unrest to support system.Thereby produce a kind of stiffening effect effectively, reach cracking resistance, impervious, shock resistance, freeze proof, the purpose that increases tensile strength.Thereby in construction process, need not to add enhancement layers such as glass cloth.
The dispersion agent that the present invention uses is low-molecular-weight polypropylene amine acid salt dispersion agent, can significantly improve concentration and stability thereof that color stuffing disperses slurry.
The defoamer that the present invention uses is the dimethyl siloxane defoamer.Experiment showed, that this defoamer is better than the effect of mineral oil defoaming agent.
The water reducer that the present invention uses is a how series high-efficiency water-reducing agent of FDN type, has functions such as non-bleed, super plasticizing, efficient diminishing and enhancing, and strengthens the degree of compactness of filming.
The quartz sand that the present invention uses is 200 orders, and coarse whiting is 325 orders, and the label of black cement is 325#.
Production technique of the present invention is: the A component: be sequentially added into various materials after the ratio weighing in prescription under stirring at low speed, stirring gets final product; B component: black cement, coarse whiting are added dry powder blender after according to the ratio weighing of prescription mix and get final product.
During use, A and B are stirred by the mixed of 1:1.2-1.5 just can carry out roller coating at the construction field (site).
Below the embodiment one embodiment of the present of invention.
A kind of high-performance waterproof coating material of cement based polymer is made up of two kinds of components of A, B, and its content is as follows:
A component: 98 parts of methacrylic ester latex A E815; 0.8 part defoamer 958; 0.6 part dispersion agent 737; 0.3 lignocellulose FD40:0.2 part polypropylene fibre EW-02; 0.1 part sterilant RS;
B component: 59.9 parts of 325# black cements; 30 part of 200 order quartz sand; 10 part of 325 order coarse whiting; 0.1 part water reducer FDN1002%.
A and B are got final product with the construction that stirs of the mixed of 1:1.2.
Its every index of high-performance waterproof coating material of cement based polymer of making according to the present invention all reaches the requirement of JC/T894-2001 about cement polymer waterproof paint defined, and has performances such as excellent weathering resistance, water tolerance, tensile strength height, high-effective water-proof.And without enhancement layer, bonding force is good between the coating, and is time saving and energy saving in construction process, and customer response is respond well.
Claims (7)
1, a kind of high-performance waterproof coating material of cement based polymer is counted by weight percentage two components of A, B and is:
A component: ACRYLIC EMULSION: 97.5-98%; Defoamer: 0.8-1%; Dispersion agent: 0.5-0.8%; Lignocellulose: 0.2-0.4%; Polypropylene fibre: 0.1-0.3%; Sterilant: 0.05-0.15%;
B component: 325# black cement: 55-62%; 200 order quartz sand: 28-32%; 325 order coarse whiting: 8-13%; Water reducer: 0.1-0.3%.
The A component with the ratio that cooperates of B component is: A:B=1:1.2-1.5
2, high-performance waterproof coating material of cement based polymer according to claim 1 is characterized in that the acrylate copolymer of said emulsion for no softening agent, and solids content is 54-56%, and minimum film-forming temperature is about-25 ℃.Can improve the flexibility of cement, and have good water-fast, alkaline-resisting and sticking power, and this emulsion is the pure acrylic acid copolymer resins, water-proof emulsion EVA system, SBR system, the styrene/acrylic used with tradition are that the resin geometric ratio has excellent weathering resistance, weather resistance.
3, high-performance waterproof coating material of cement based polymer according to claim 1 is characterized in that said dispersion agent is a low-molecular-weight polypropylene amine acid salt dispersion agent, can significantly improve concentration and stability thereof that color stuffing disperses slurry.
4, high-performance waterproof coating material of cement based polymer according to claim 1 is characterized in that said water reducer is a how series high-efficiency water-reducing agent of FDN type, has functions such as non-bleed, super plasticizing, efficient diminishing and enhancing, and strengthens the degree of compactness of filming.
5, high-performance waterproof coating material of cement based polymer according to claim 1 is characterized in that said polypropylene fibre is process special reel off raw silk from cocoons production technique and surface-treated 100% polypropylene, and length is among the 6-8mm.Can improve the bond stress with cement material, the waterproof paint ultimate elongation rate that is mixed with fiber is improved, thereby greatly improve the Zhong Qiangdu that draws of waterproof paint.In addition, this fiber can be easy to rapidly mix with coating, is the monofilament state and is evenly distributed in the system, forms a uniform three-dimensional netted unrest to support system.Thereby produce a kind of stiffening effect effectively, reach cracking resistance, impervious, shock resistance, freeze proof, the purpose that increases tensile strength.Thereby in construction process, need not to add enhancement layers such as glass cloth.
6, high-performance waterproof coating material of cement based polymer according to claim 1 is characterized in that employed quartz sand is 200 orders, and coarse whiting is 325 orders, and the label of black cement is 325#.
7, high-performance waterproof coating material of cement based polymer according to claim 1 is characterized in that employed defoamer is the dimethyl siloxane defoamer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101694503A CN101429401A (en) | 2007-11-06 | 2007-11-06 | High-performance waterproof coating material of cement based polymer |
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| CNA2007101694503A CN101429401A (en) | 2007-11-06 | 2007-11-06 | High-performance waterproof coating material of cement based polymer |
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| CN101429401A true CN101429401A (en) | 2009-05-13 |
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| CNA2007101694503A Pending CN101429401A (en) | 2007-11-06 | 2007-11-06 | High-performance waterproof coating material of cement based polymer |
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| CN102329112A (en) * | 2011-06-27 | 2012-01-25 | 浙江鲁班建筑防水有限公司 | Colored polymer cement underwater paint |
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Open date: 20090513 |