CN1480504A - Strong and flexble composited waterproofing material in base of cement - Google Patents
Strong and flexble composited waterproofing material in base of cement Download PDFInfo
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- CN1480504A CN1480504A CNA031417078A CN03141707A CN1480504A CN 1480504 A CN1480504 A CN 1480504A CN A031417078 A CNA031417078 A CN A031417078A CN 03141707 A CN03141707 A CN 03141707A CN 1480504 A CN1480504 A CN 1480504A
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Abstract
A both rigid and flexible composite cement-base water-proof material is prepared through preparing water-proof paint from composite acrylate consisting of butyl acrylate, perspex and methylacrylic acid, silicate, surfactant and powdered filler, and coating it on reinforced layer.
Description
Technical field
The present invention relates to hard and soft complex cement base waterproof material, particularly about hard and soft complex cement base waterproof roll.
Background technology
Cement group water-proofing material development in recent years is very fast, and forms some series, as polymer modified cement based waterproof coatings, rigid polymer cement (dry mixing) waterproof mortar etc., based on the rigid polymer cement waterproofing material.Technology such as admixture organic polymer, water-resisting agent, water reducer, swelling agent are adopted in the rigidity water-proofing material modification, and the contraction of minimizing and compensation water mud material prevents cracking, reduce the also pore of refinement material, make concrete finer and close, and anti-permeability performance greatly improves.The ageing resistance of this class material is good, but because they are rigid material, therefore, can't adapt to the bigger dilatation of matrix.If basic unit is owing to the dry shrinkage or the cracking that expands with heat and contract with cold, waterproof layer also will be influenced waterproof effect by drawing crack or layering, and its use range is very limited, and not be suitable on the ground or the big area integral waterproofing engineering of roofing.
In recent years, in Japan and Germany and domestic some areas, a kind of have the very high polymer cement ratio ratio of cement (polymkeric substance with), its value be 50% or higher, sometimes can reach 100% or the pasty state of higher a kind of polymer modification or the membranaceous water-proof material that soup compound (coating) is used as a kind of liquid applications type be widely used in buildings such as apartment, vault, underground tank, though using, it is not subjected to a lot of restrictions, but need on-the-spot the stirring when constructing because of it, polymer cement ratio, water cement ratio height, so also exist disposable film thinner, need the multiple tracks construction, time-consuming shortcoming such as take a lot of work.
Birchall etc. (EP0055035A1 and EP0038126A1) have proposed the composition and the preparation method of the cement-based material of high breaking strength, be after with paddle formula high-shear impeller it being kneaded into plasticity bulk material with 1%～15% water-soluble polymers of hydraulic cement, cement weight or aqueous dispersion polymers and water, mixing on double roll mill, adopt then and extrude or the mould pressing method moulding, make compact structure, macroscopic defects is few, folding strength is high high-strength cement sill.But this material is a rigid material, and big to water sensitivity, and under hygrometric state, its strength retention is low.
Disclose a kind of waterproof paint among the document Chinese patent CN1048871A, it is resin emulsion class coating that this coating belongs to vinylformic acid (ester).Do not specifically note in the document that vinylformic acid (ester) is the concrete component of resin emulsion, and only reflected coating in the document, do not introduce with cement based and form the waterproof roll situation.
A kind of novel multi-layer composite water-proof rolled material is disclosed among the document Chinese patent CN2340608Y.This coiled material is composited by waterproof protective layer, fiber-reinforced layer, waterproof layer and fiber reinforcement non-skid finish successively, and wherein the waterproof protective layer is to be equipped with special cement, softening agent, stablizer, pigment and an amount of high quality filler by acrylate to make.But do not point out the component of acrylate in the document.
A kind of vinylformic acid multi-layer water-proof coiled composite material is disclosed among the document Chinese patent CN2517580Y.It is to be formed by the non-woven fabric compounded of plastics film and two sides, and one is coated with one deck polyacrylic water-proof protective membrane above the non-woven fabrics therein, but does not disclose acrylic acid concrete component equally.
Polymer modified cement base waterproof material of a kind of flexibility and preparation method thereof is disclosed among the document Chinese patent CN1306949A.Wherein water-soluble polymers can be a kind of or its combination in acrylic emulsions, styrene-butadiene latex, ethylene-vinyl acetate copolymer, vinyl acetate between to for plastic-tertiary carbon acid esters emulsion, chlorine partial emulsion, vinyl chloride-vinyl acetate-acrylate copolymer emulsion, vinyl acetate emulsion, the polychloroprene latex.But do not point out for example concrete component of ACRYLIC EMULSION in the document, only enumerated the second-order transition temperature such as the acrylic emulsions of polymkeric substance, PS9317, Tg=-40 ℃; S400, Tg=-7 ℃, BA163, Tg=-7 ℃; P2438, Tg=-22 ℃; EVA, Tg=7 ℃.Result from embodiment finds out that its tensile strength is 1.74～4.34MPa, but elongation at break is 76～128%, and is lower.According to JC/T894-2001 " polymer cement waterproof paint " standard-required, its tensile strength of flexible materials should 〉=1.2MPa, elongation at break be 〉=200% to be salable product; Rigid material requires tensile strength 〉=1.8MPa, elongation at break 〉=80%, though obvious above-mentioned document reaches this standard, but still lower.
Characteristics based on the cement group water-proofing material high-durability, with and products production and construction in environment is not polluted, to the base material wide adaptability, be convenient to good characteristics such as construction, the present inventor has carried out deep research relatively to this class material, by bold improvement to material component prescription and production technique thereof, polymer water mud material uniform mixing than low water-cement ratio and polymer cement ratio is disperseed, the premium properties of rigidity cement waterproofing material with flexible (acrylate) water-proof material combined, behind blade coating, prepare to have through rolling process again and adapt to the matrix deformability, flexible or hard and soft compound, structure is more fine and close, water resistance is better, the cement group water-proofing material that weather resistance is good.
Summary of the invention
Technical problem to be solved by this invention is that the waterproof roll that makes in the conventional art exists tensile strength and elongation at break can not reach higher level simultaneously, often elongation at break is lower, be that rigidity is higher, but flexible not enough problem, a kind of new hard and soft complex cement base waterproof material is provided, and this material has tempers toughness with gentleness, when satisfying the rigidity tensile strength, can improve flexible index elongation at break greatly, make material reach the characteristics of better comprehensive performance.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of hard and soft complex cement base waterproof material, to form by waterproof layer and enhancement layer at least, and waterproof layer is coated on the enhancement layer, and the consumption of enhancement layer is 20～90 gram/rice
2, the consumption of waterproof layer is 0.5～5 kilogram/meter
2, enhancement layer is the flexibility material, waterproof layer comprises following component by weight percentage:
A) acrylate 15～50%;
B) silicate 25～60%;
C) tensio-active agent 0.6～3.0%;
D) fleut 15～30%;
Wherein the composition of acrylate comprises following component by weight percentage:
1) butyl acrylate 50～80%;
2) methyl methacrylate 10～50%;
3) methacrylic acid 0.5～10%.
In the technique scheme, the consumption preferable range of enhancement layer is 30～50 gram/rice
2, flexibility material preferred version is to be selected from least a in alkali resistance fiber, non-woven fabrics, woven, grid cloth, terylene, polyester polymer or the woven asbesto, the consumption preferable range of waterproof layer is 1～4 kilogram/meter
2The alkali resistance fiber preferred version is for being selected from vinylon fiber, alkali resistant glass fibre, nylon, polypropylene fibre, carbon fiber or mineral fiber type asbestos; The non-woven fabrics preferred version is for being selected from nonwoven polypropylene fabric; The consumption preferable range of waterproof layer is 2～4 kilograms/meter
2Acrylate consumption preferable range is 15～30% by weight percentage, and silicate consumption preferable range is 30～50%, and the dosage of surfactant preferable range is 0.6～1.6%, and fleut consumption preferable range is 20～25%.The silicate preferred version is to be selected from least a in ordinary Portland cement, sulphur aluminium cement, iron aluminium cement, low alkali cement, high-alumina cement or the white cement; The tensio-active agent preferred version is for being selected from alkylbenzene polyether sulfonate or alkaryl Soxylat A 25-7; The powder filler is selected from least a in flyash, silicon ash, volcanic ash, zeolite powder, metakaolin, silica powder, Wingdale, talcum, light calcium carbonate or the water-ground limestone.Silicate more preferably scheme for being selected from ordinary Portland cement or high-alumina cement; Tensio-active agent more preferably scheme for being selected from hexadecyl benzene polyethers sodium sulfonate or dodecylbenzene Soxylat A 25-7.By weight percentage, butyl acrylate content preferable range is 55～70% in the acrylate, and methyl methacrylate content preferable range is 25～38%, and methacrylic acid content preferable range is 0.5～4%.
The preparation method of the hard and soft complex cement base waterproof material of the present invention is as follows:
A) at first the acrylate (comprising butyl acrylate, methyl methacrylate and methacrylic acid) of aequum is mixed with the emulsion of solid content 40～80%;
B) in the emulsion of a) step, add the tensio-active agent of aequum, mix then;
C) earlier silicate and powder filler are mixed after, again and b) the emulsion uniform mixing form slurry that obtains of step;
D) with c) slurry that obtains of step evenly is coated with on request and scrapes the one side of sprawling in enhancement layer, then in about normal temperature～150 ℃ drying, calendering typing, required coiled material.
Among the present invention since acrylic ester emulsion along with dehydration process carries out, polymer beads is progressively close, particulate merges mutually, tightly packed, the polymer segment interpenetration tangles, fillers such as cement then are filled in the space of heaping stand thing, form non-homogeneity, and promptly multi-phase material is the aggregate of external phase with the polymer.Simultaneously owing to be added with a large amount of cement components in the acrylic ester emulsion, cement is different from mineral filler or sand grains, it is that active particle participates in the system dehydration process, and self hydrated is formed based on silicate, the aggregated particles of metal hydroxide-containing is dispersed among the network structure of polymer segment formation.Hydroxyl in the polymer molecule can react with the oxyhydroxide on the cement silicate granules again, form crosslinkedly, strengthened aggregation structure, constituted more tough film body, thereby make the cement group water-proofing material of formation not only have higher draw tensile strength, improved elongation at break simultaneously greatly.Can regulate between 1.6～3.5MPa through test confirmation technical scheme tensile strength of the present invention, elongation at break can be regulated between 150～394%, has obtained better technical effect.
The invention will be further elaborated below by embodiment.
Embodiment [embodiment 1～6]
1. the mix material proportioning of preparation cement-based waterproof layer is listed in table 1:
| The embodiment numbering | 1 | ????2 | ??3 | ????4 | ????5 | ????6 |
| Material name | Weight part | Weight part | Weight part | Weight part | Weight part | Weight part |
| Normal silicate 525 cement | 67 | ????- | ??100 | ????120 | ???134 | ????167 |
| High-alumina cement | - | ????80 | ??- | ????- | ???- | ????- |
| Flyash | 4 | ????4.8 | ??6 | ????7.2 | ???8 | ????10 |
| Silica powder | 15 | ????18 | ??22.5 | ????27 | ???30 | ????37.5 |
| Lime carbonate | 13 | ????15 | ??19.5 | ????23 | ???26 | ????32.5 |
| Butyl acrylate | 38 | ????34.5 | ??40.2 | ????38 | ???38 | ????38 |
| Methyl methacrylate | 18 | ????21.8 | ??17.3 | ????18 | ???18 | ????18 |
| Methacrylic acid | 1.5 | ????1.1 | ??0.3 | ????1.5 | ???1.5 | ????1.5 |
| Hexadecyl benzene polyethers sodium sulfonate | 0.8 | ????1.5 | ??1.0 | ????1.5 | ???1.5 | ????0.8 |
| The dodecylbenzene Soxylat A 25-7 | 1.0 | ????- | ??0.8 | ????- | ???0.3 | ????1.0 |
| Water | 43 | ????40 | ??42 | ????43 | ???43 | ????43 |
2. preparation process:
A) at first butyl acrylate, methyl methacrylate and methacrylic acid and the water of aequum is made into emulsion;
B) in the emulsion of a) step, add the mixture of the hexadecyl benzene polyethers sodium sulfonate of aequum or itself and dodecylbenzene Soxylat A 25-7;
C) earlier normal silicate 525 cement or high-alumina cement and flyash, silica powder and lime carbonate powder filler are mixed after, again and b) the material uniform mixing form slurry that obtains of step;
D) with c) slurry that obtains of step evenly is coated with on request and scrapes the one side of sprawling in nonwoven polypropylene fabric, after drying under about 80 ℃ of temperature, with rolling process waterproof layer finalized the design then, and the thickness of waterproof layer is 1.0～3.0 millimeters, and waterproof layer weight is 3～4 kilograms/meter
2The thickness of nonwoven polypropylene fabric is 0.2～0.48 millimeter, and the weight of non-woven fabrics is 20～90 gram/rice
2, its concrete data and testing of materials data are listed in table 2:
Annotate: tensile strength and elongation at break are pressed JC/T894-2001 " polymer cement waterproof paint " standard test.
Claims (7)
1, a kind of hard and soft complex cement base waterproof material is made up of waterproof layer and enhancement layer at least, and waterproof layer is coated on the enhancement layer, and the consumption of enhancement layer is 20～90 gram/rice
2, the consumption of waterproof layer is 0.5～5 kilogram/meter
2, enhancement layer is the flexibility material, waterproof layer comprises following component by weight percentage:
A) acrylate 15～50%;
B) silicate 25～60%;
C) tensio-active agent 0.6～3.0%;
D) fleut 15～30%;
Wherein the composition of acrylate comprises following component by weight percentage:
1) butyl acrylate 50～80%;
2) methyl methacrylate 10～50%;
3) methacrylic acid 0.5～10%.
2, according to the described hard and soft complex cement base waterproof material of claim 1, the consumption that it is characterized in that enhancement layer is 30～50 gram/rice
2, the flexibility material is to be selected from least a in alkali resistance fiber, non-woven fabrics, woven, grid cloth, terylene, polyester polymer or the woven asbesto, the consumption of waterproof layer is 1～4 kilogram/meter
2
3,, it is characterized in that alkali resistance fiber is selected from vinylon fiber, alkali resistant glass fibre, nylon, polypropylene fibre, carbon fiber or mineral fiber type asbestos according to the described hard and soft complex cement base waterproof material of claim 2; Non-woven fabrics is selected from nonwoven polypropylene fabric; The consumption of waterproof layer is 2～4 kilograms/meter
2
4, according to the described hard and soft complex cement base waterproof material of claim 1, it is characterized in that the acrylate consumption is 15～30% by weight percentage, the silicate consumption is 30～50%, and dosage of surfactant is 0.6～1.6%, and the fleut consumption is 20～25%.
5,, it is characterized in that silicate is selected from least a in ordinary Portland cement, sulphur aluminium cement, iron aluminium cement, low alkali cement, high-alumina cement or the white cement according to the described hard and soft complex cement base waterproof material of claim 1; Tensio-active agent is selected from alkylbenzene polyether sulfonate or alkaryl Soxylat A 25-7; The powder filler is selected from least a in flyash, silicon ash, volcanic ash, zeolite powder, metakaolin, silica powder, Wingdale, talcum, light calcium carbonate or the water-ground limestone.
6, according to the described hard and soft complex cement base waterproof material of claim 5, it is characterized in that silicate is selected from ordinary Portland cement or high-alumina cement, tensio-active agent is selected from hexadecyl benzene polyethers sodium sulfonate or dodecylbenzene Soxylat A 25-7.
7, according to the described hard and soft complex cement base waterproof material of claim 1, it is characterized in that by weight percentage butyl acrylate content is 55～70% in the acrylate, methyl methacrylate content is 25～38%, the methacrylic acid content is 0.5～4%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 03141707 CN1216958C (en) | 2003-07-18 | 2003-07-18 | Strong and flexble composited waterproofing material in base of cement |
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| CN 03141707 CN1216958C (en) | 2003-07-18 | 2003-07-18 | Strong and flexble composited waterproofing material in base of cement |
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| CN1480504A true CN1480504A (en) | 2004-03-10 |
| CN1216958C CN1216958C (en) | 2005-08-31 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935180A (en) * | 2010-09-02 | 2011-01-05 | 北京立高科技股份有限公司 | Root penetrating resistant filler for waterproof coiled material and production process thereof |
| WO2012006923A1 (en) * | 2010-07-13 | 2012-01-19 | Shi Lei | Modified inorganic powder composite material and preparation method thereof |
| CN104211354A (en) * | 2014-08-29 | 2014-12-17 | 上海龙洲新型建材有限公司 | Self-closing repairing coating enhanced waterproof material |
| CN109279914A (en) * | 2018-09-28 | 2019-01-29 | 江西科技学院 | Photo-catalysis function cement-based material and preparation method thereof |
| CN113072912A (en) * | 2021-03-31 | 2021-07-06 | 山东普文特建材有限公司 | Composite reinforced waterproof material coated on site and preparation method thereof |
-
2003
- 2003-07-18 CN CN 03141707 patent/CN1216958C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012006923A1 (en) * | 2010-07-13 | 2012-01-19 | Shi Lei | Modified inorganic powder composite material and preparation method thereof |
| CN101935180A (en) * | 2010-09-02 | 2011-01-05 | 北京立高科技股份有限公司 | Root penetrating resistant filler for waterproof coiled material and production process thereof |
| CN104211354A (en) * | 2014-08-29 | 2014-12-17 | 上海龙洲新型建材有限公司 | Self-closing repairing coating enhanced waterproof material |
| CN104211354B (en) * | 2014-08-29 | 2017-01-18 | 上海龙洲新型建材有限公司 | Self-closing repairing coating enhanced waterproof material |
| CN109279914A (en) * | 2018-09-28 | 2019-01-29 | 江西科技学院 | Photo-catalysis function cement-based material and preparation method thereof |
| CN113072912A (en) * | 2021-03-31 | 2021-07-06 | 山东普文特建材有限公司 | Composite reinforced waterproof material coated on site and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1216958C (en) | 2005-08-31 |
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Owner name: SHANGHAI LONGKAN WATERPROOF ENGINEERING CO., LTD. Free format text: FORMER OWNER: LONGZHOU NEW TYPE OB BUILDING MATERIALS CO., LTD., SHANGHAI Effective date: 20070727 |
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Effective date of registration: 20070727 Address after: 201110, Shanghai, Minhang District, No. 2795 hop Road, 7 factory buildings Patentee after: Shanghai dragon Kan waterproof Engineering Co. Ltd. Address before: 200011 Shanghai City Lu Robinson Road No. 413 Building No. 5 room 2003 Patentee before: Longzhou New Type ob Building Materials Co., Ltd., Shanghai |
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Granted publication date: 20050831 Termination date: 20190718 |