CN104211354B - Self-closing repairing coating enhanced waterproof material - Google Patents
Self-closing repairing coating enhanced waterproof material Download PDFInfo
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- CN104211354B CN104211354B CN201410438931.XA CN201410438931A CN104211354B CN 104211354 B CN104211354 B CN 104211354B CN 201410438931 A CN201410438931 A CN 201410438931A CN 104211354 B CN104211354 B CN 104211354B
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Abstract
The invention relates to a self-closing repairing coating enhanced waterproof material. By adopting the self-closing repairing coating enhanced waterproof material, the problem of water leakage caused by cracks in a concrete base and a waterproof coating after long-time use in the prior art is mainly solved. By adopting the technical scheme of the self-closing repairing coating enhanced waterproof material comprising acrylic ester, silicates, a surface active agent, a powdery filler and high-water-absorbency resin such as a high-modulus ethylene-vinyl acetate copolymer emulsion, polyvinyl alcohol or polyimide, the problem is well solved, wherein the acrylic ester consists of butyl acrylate and methyl methacrylate and methacrylic acid; thus, the self-closing repairing coating enhanced waterproof material can be used in the industrial production of a polymer cement waterproof material.
Description
Technical field
The present invention relates to self-closing reparation film strengthens waterproof material, especially with regard to combination of rigidity and flexibility cement group water-proofing material.
Background technology
Cement group water-proofing material development in recent years is very fast, and forms some series, and such as polymer-modified cement-based waterproof applies
Material, rigid polymer cement (dry mixing) waterproof mortar etc., based on rigid polymer cement waterproofing material.Rigidity water-proofing material changes
Property using admixture organic polymer, waterproofing agent, water reducer, the technology such as extender, reduce and compensate the contraction of cement material, prevent
Cracking, reduces the pore of simultaneously refiner material, makes concrete finer and close, anti-permeability performance greatly improves.This kind of material ageing-resistant
Property good, but because they are rigid material, therefore, it is impossible to adapt to the larger dilatation of matrix.If basic unit receives due to being dried
Contracting or the cracking that expands with heat and contract with cold, waterproof material also will be affected waterproof effect by drawing crack or layering, and its range is subject to the very day of one's doom
System, is not suitable for the large area integral waterproofing engineering of ground or roofing.
In recent years, in Japanese and German and domestic some areas, one kind have very high polymer cement ratio (polymer and cement it
Than), its value is 50% or higher, sometimes can reach a kind of 100% or higher pasty state of polymer modification or slurry (applies
Material) it is widely used in apartment, basement, underground tank etc. and is built as a kind of membranaceous waterproof material of liquid applications type
Build, though it is not using much being limited, because it applies man-hour requirement Site, polymer cement ratio, the ratio of mud are high, therefore also exist once
Property film relatively thin, need multiple tracks to construct, time-consuming the shortcomings of take a lot of work.
Ep0055035al and ep0038126al proposes composition and the preparation method of the cement-based material of high breaking strength,
Be with hydraulic cement, cement weight 1%～15% water-soluble polymer or aqueous dispersion polymers and water paddle formula
After high-shear impeller is kneaded into plasticity bulk material, double roll mill kneads, then using extrusion or mould pressing method
Molding, prepared compact structure, gross imperfection are few, the High Strength Cement-Based Materials of High anti bending strength.But this material is rigid material, and
And big to water sensitivity, under hygrometric state, its strength retention is low.
A kind of water-repellent paint is disclosed, it is resin emulsion class coating that this coating belongs to acrylic acid (ester) in cn1048871a.
Do not specifically note in the document that acrylic acid (ester) is the concrete component of resin emulsion, and only reflect coating in document, do not have
It is described and form waterproof roll situation with cement based.
A kind of laminated composite waterproof rolling materials are disclosed in cn2340608y.This coiled material is successively by waterproof protective layer, fibre
Dimension enhancement layer, waterproof material and fiber reinforcement skid resistant course are composited, and wherein waterproof protective layer is to be equipped with special type by acrylate
Cement, plasticizer, stabilizer, pigment and appropriate high quality filler are made.But do not point out the component of acrylate in the document.
A kind of acrylic acid is disclosed in cn2517580y.It is the nothing by plastic sheeting and two sides
Spin cloth to be composited, one layer of polyacrylic water-proof protecting film of face non-woven fabrics coated thereon wherein, but also without open propylene
The concrete component of acid.
A kind of polymer modified cement base waterproof material of flexibility and preparation method thereof is disclosed in cn1306949a.Wherein
Water-soluble polymer can be acrylic emulsions, styrene-butadiene latex, ethylene-vinyl acetate copolymer, vinyl acetate-tertiary carbonic ester
One of emulsion, chlorine partial emulsion, vinyl chloride-vinyl acetate-acrylate copolymer emulsion, vinyl acetate emulsion, polychloroprene latex
Or a combination thereof.But do not point out the concrete component of such as acrylic emulsion in the document, only list the vitrification of polymer
Temperature such as acrylic emulsions, ps9317, tg=-40 DEG C；S400, tg=-7 DEG C, ba163, tg=-7 DEG C；P2438, tg=-
22℃；Eva, tg=7 DEG C.Result from embodiment is found out, its tensile strength is 1.74～4.34mpa, but extension at break
Rate is 76～128%, relatively low.According to jc/t894-2001 " polymer cement waterproof paint " standard require, flexible material its draw
Stretch intensity and answer >=1.2mpa, elongation at break is certified products for >=200%；Rigid material requires tensile strength >=1.8mpa, breaks
Split percentage elongation >=80% it is clear that though above-mentioned document reaches this standard, but still relatively low.
Based on the feature of cement group water-proofing material high-durability, and there is no dirt to environment in its production and construction
Dye, to base material wide adaptability, is easy to the good characteristics such as construction, the present inventor conducts in-depth research to this kind of material
Relatively, by the bold improvement to material component formula and its production technology, make the polymer water compared with low water-cement ratio and polymer cement ratio
Mud material uniformly mixes dispersion, and rigid cement waterproofing material is combined with the premium properties of flexible (acrylate) waterproof material
Together, prepare through rolling process again to have after blade coating and adapt to matrix deformability, flexible or combination of rigidity and flexibility, structure more
Fine and close, water resistance preferably, the cement group water-proofing material of excellent durability, even and if crackle occurs and is not easy to Lou later
Water.
Content of the invention
The technical problem to be solved is that in prior art, concrete base layer and waterproof material easily occur for a long time
Crackle and lead to the problem of leak, provide a kind of new self-closing reparation film to strengthen waterproof material, this material has waterproof material
Even if the advantage that crackle is not easy to leak occurs.
For solving above-mentioned technical problem, the technical solution used in the present invention is as follows: a kind of self-closing reparation film strengthens waterproof
Material, comprises following component by weight percentage:
A) acrylate 15～50%；
B) silicate 20～58%；
C) surfactant 0.6～3.0%；
D) fleut 15～30%；
E) super absorbent resin 5～35%；
The composition of wherein acrylate comprises following component by weight percentage:
1) butyl acrylate 50～80%；
2) methyl methacrylate 10～50%；
3) methacrylic acid 0.5～10%.
In technique scheme, silicate preferred version be selected from Portland cement, sulfur aluminum cement, ferrum aluminum cement,
At least one in low alkali cement, alumina cement or white cement；Surfactant preferred version is selected from alkylbenzene polyethers sulfonic acid
Salt or alkylarylpolyoxyethylene ether；Powder filler is selected from flyash, silicon ash, volcanic ash, zeolite powder, metakaolin, silica flour, stone
At least one in lime stone, Talcum, precipitated calcium carbonate or ground calcium carbonate；Super absorbent resin is selected from high mode ethyl vinyl acetate
Ethylene copolymerization emulsions (vae), polyvinyl alcohol or polyimides.Silicate more preferably scheme is selected from Portland cement or height
Aluminum cement；Surfactant more preferably scheme is selected from cetyl benzene polyethers sodium sulfonate or detergent alkylate polyoxyethylene ether.
By weight percentage, in acrylate, butyl acrylate content preferred scope is 55～70%, methyl methacrylate content
Preferred scope is 25～38%, and methacrylic acid content preferred scope is 0.5～4%；Self-closing reparation film strengthens waterproof material
In also contain fiber, described fiber is selected from metallic fiber, inorfil, at least one in organic fiber；Metallic fiber is selected from
At least one in carbon steel fiber, stainless steel fibre, metallic glass fiber；Inorfil is selected from chrysotile, acicular wollastonite, glass
At least one in glass fiber, alkali resistant mineral wool, carbon fiber；Organic fiber is selected from polypropylene fibre, nylon fiber, polyethylene fiber
In dimension, vinal, modified acrylic fibre, aryl polyimides fiber, sisal, Folium Agaves Sisalanae, Corchorus olitorius L., grassiness
At least one.
The preparation method that the present invention self-closing reparation film strengthens waterproof material is as follows:
A) first by the desired amount of acrylate (including butyl acrylate, methyl methacrylate and metering system
Acid) it is configured to the emulsion of solid content 40～80%；
B) the desired amount of surfactant, super absorbent resin, then mix homogeneously are added into the emulsion of a) step；
C) first by after silicate and powder filler mix homogeneously, then and b) emulsion that step obtains be uniformly mixed into slurry,
Obtain described waterproof material.
So-called " self-closing ", refers to when crackle in concrete base layer and waterproof coating, and film, in the presence of water, leads to
Crossing physical and chemical reaction can make the performance of crack seal itself.This process gradually occurs, and first, the water of infiltration is applied
Film absorbs, and the waterproof coating near crack can produce volumetric expansion, so that intake tunnel narrows it is suppressed that the invasion of water；
And then, its film forms absorption, solidification and the accumulation of Calcium Carbonate under the activity gels agent effect in resin, and blocking water inlet is logical
Road, so that crack seal itself, plays the effect of waterproof.
Because acrylic acid ester emulsion is carried out with dehydration process in the present invention, polymer beads are progressively close, and microgranule is mutual
Merge, tightly packed, polymer segment penetrates mutually entanglement, and the filler such as cement is then filled in the space of heaping stand thing, shape
Become non-homogeneity, the i.e. aggregation with macromolecule as continuous phase for the multi-phase material.Simultaneously because being added with big in acrylic acid ester emulsion
Amount cement component, cement is different from inorganic filler or sand grains, and it is that active particle participates in system dehydration process, and makes itself to be hydrated
Change formed based on silicate, the aggregated particle of metal hydroxide-containing, be dispersed in polymer segment formation network structure it
In.Hydroxyl in polymer molecule can be reacted with the hydroxide on cement silicate granules again, is formed crosslinked, enhances
Aggregated structure, constitutes the film body of high-tenacity so that the cement group water-proofing material being formed not only to be provided with higher stretching strong
Degree, substantially increases elongation at break simultaneously.Even and if the waterproof material of the present invention occurs in that crackle from now on, due to adding
The super absorbent resin of water-swellable, the super absorbent resin of water suction expand after can closed crack, reach the purpose of waterproof, take
Obtained preferable technique effect.
Below by embodiment, the invention will be further elaborated.
Specific embodiment
[embodiment 1～6]
1. the mix material proportioning preparing cement group water-proofing material is listed in table 1:
Table 1
2. preparation process:
A) first the desired amount of butyl acrylate, methyl methacrylate and methacrylic acid and water are made into emulsion；
B) the desired amount of cetyl benzene polyethers sodium sulfonate or itself and detergent alkylate is added to gather into the emulsion of a) step
The mixture of oxygen vinyl Ether, is subsequently adding high mode ethene-vinyl acetate copolymer emulsion (vae)；
C) first normal silicate 525 cement or alumina cement and flyash, silica flour and Calcium Carbonate powder filler are mixed
After closing uniformly, then and b) material that step obtains be uniformly mixed into slurry；
D) slurry that c) step obtains uniformly is applied on request and scrape the one side spreading in nonwoven polypropylene fabric, then at about 80 DEG C
At a temperature of be dried after, with rolling process, waterproof material is shaped, the thickness of waterproof material is 1.0～3.0 millimeters, waterproof material weight
For 3～4 kgs/m2；The thickness of nonwoven polypropylene fabric is 0.2～0.48 millimeter, and the weight of non-woven fabrics is 20～90 grams m2, its tool
Volume data and testing of materials data are listed in table 2:
Table 2
Note: tensile strength and elongation at break press gb/t23445-2009 " polymer cement waterproof paint " standard test.
The waterproof material preparing is used for the waterproof of apartment exterior wall, after 8 months, the exterior wall using waterproof material occurs
Crackle, when rainy, by moisture or moisture absorption and can expand thus being sufficient filling with crack after this material 2h under chemical action
Reach completely waterproof effect, exterior wall still will not leak.
[embodiment 7～10]
1. the mix material proportioning preparing cement group water-proofing material is listed in table 3:
Table 3
2. preparation process:
A) first the desired amount of butyl acrylate, methyl methacrylate and methacrylic acid and water are made into emulsion；
B) the desired amount of cetyl benzene polyethers sodium sulfonate or itself and detergent alkylate is added to gather into the emulsion of a) step
The mixture of oxygen vinyl Ether, is subsequently adding high mode ethene-vinyl acetate copolymer emulsion (vae) and fiber；
C) first normal silicate 525 cement or alumina cement and flyash, silica flour and Calcium Carbonate powder filler are mixed
After closing uniformly, then and b) material that step obtains be uniformly mixed into slurry；
D) slurry that c) step obtains is carried out performance test, its concrete data and testing of materials data are listed in table 4:
Table 4
Note: tensile strength and elongation at break press gb/t23445-2009 " polymer cement waterproof paint " standard test.
The waterproof material preparing is used for the waterproof of apartment exterior wall, after 8 months, the exterior wall using waterproof material occurs
Crackle, when rainy, by moisture or moisture absorption and can expand thus being sufficient filling with crack after this material 2h under chemical action
Reach completely waterproof effect, exterior wall still will not leak.
[comparative example]
1. the mix material proportioning preparing cement group water-proofing material is listed in table 3:
Table 3
| Embodiment is numbered | 1 |
| Material name | Weight portion |
| Normal silicate 525 cement | 67 |
| Alumina cement | — |
| Flyash | 4 |
| Silica flour | 15 |
| Calcium Carbonate | 13 |
| Butyl acrylate | 38 |
| Methyl methacrylate | 18 |
| Methacrylic acid | 1.5 |
| Cetyl benzene polyethers sodium sulfonate | 0.8 |
| Detergent alkylate polyoxyethylene ether | 1.0 |
| Water | 43 |
2. preparation process:
A) first the desired amount of butyl acrylate, methyl methacrylate and methacrylic acid and water are made into emulsion；
B) the desired amount of cetyl benzene polyethers sodium sulfonate or itself and detergent alkylate is added to gather into the emulsion of a) step
The mixture of oxygen vinyl Ether；
C) first normal silicate 525 cement or alumina cement and flyash, silica flour and Calcium Carbonate powder filler are mixed
After closing uniformly, then and b) material that step obtains be uniformly mixed into slurry；
D) slurry that c) step obtains uniformly is applied on request and scrape the one side spreading in nonwoven polypropylene fabric, then at about 80 DEG C
At a temperature of be dried after, with rolling process, waterproof material is shaped, the thickness of waterproof material is 1.0～3.0 millimeters, waterproof material weight
For 3～4 kg/m 2；The thickness of nonwoven polypropylene fabric is 0.2～0.48 millimeter, and the weight of non-woven fabrics is 20～90 grams/m2, its
Concrete data and testing of materials data are listed in table 4:
Table 4
Note: tensile strength and elongation at break press gb/t23445-2009 " polymer cement waterproof paint " standard test.
The waterproof material preparing is used for the waterproof of apartment exterior wall, after 8 months, the exterior wall using waterproof material occurs
The crackle of millimeter, leak in exterior wall.
Claims (3)
1. a kind of self-closing reparation film strengthens waterproof material, comprises following component by weight percentage:
A) acrylate 15～50%；
B) silicate 20～58%；
C) surfactant 0.6～3.0%；
D) fleut 15～30%；
E) super absorbent resin 5～35%；
The composition of wherein acrylate comprises following component by weight percentage:
1) butyl acrylate 50～80%；
2) methyl methacrylate 10～50%；
3) methacrylic acid 0.5～10%；
Super absorbent resin is selected from polyvinyl alcohol or polyimides；Also fiber is contained in self-closing reparation film enhancing waterproof material,
Described fiber is selected from metallic fiber, inorfil, at least one in organic fiber, and metallic fiber is selected from carbon steel fiber, stainless
At least one in steel fibre, metallic glass fiber；Inorfil be selected from chrysotile, acicular wollastonite, in alkali resistant mineral wool extremely
Few one kind；Organic fiber be selected from polyethylene fibre, vinal, modified acrylic fibre, aryl polyimides fiber,
At least one in Folium Agaves Sisalanae, Corchorus olitorius L., grassiness；Silicate is selected from Portland cement, sulfur aluminum cement, ferrum aluminum cement, low aqueous alkali
At least one in mud, alumina cement or white cement；Surfactant is selected from alkylbenzene polyether sulfonate or alkaryl polyoxy second
Alkene ether；Fleut is selected from flyash, silicon ash, volcanic ash, zeolite powder, metakaolin, silica flour, limestone, Talcum, lightweight carbon
At least one in sour calcium or ground calcium carbonate.
2. self-closing reparation film strengthens waterproof material it is characterised in that silicate is selected from common silicic acid according to claim 1
Salt cement or alumina cement, surfactant is selected from cetyl benzene polyethers sodium sulfonate or detergent alkylate polyoxyethylene ether.
3. self-closing reparation film strengthens waterproof material it is characterised in that propylene by weight percentage according to claim 1
In acid esters, butyl acrylate content is 55～70%, and methyl methacrylate content is 25～38%, and methacrylic acid content is
0.5～4%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104761968A (en) * | 2015-03-18 | 2015-07-08 | 蚌埠市高华电子有限公司 | Radiation heat-insulating coating being excellent in weather resistance and preparation method thereof |
| CN107162468A (en) * | 2017-06-14 | 2017-09-15 | 合肥易美特建材有限公司 | A kind of concrete waterproofer and preparation method thereof |
| CN107739584A (en) * | 2017-11-06 | 2018-02-27 | 吉林省翔河建筑材料有限公司 | It is a kind of to be used to paste rubber powder of waterproof roll and preparation method thereof |
| CN108863154A (en) * | 2018-06-20 | 2018-11-23 | 河南阳光防水科技有限公司 | Self-healing capillary crystalline waterproof agent |
| CN110408247A (en) * | 2019-08-12 | 2019-11-05 | 天津海之星水下机器人有限公司 | A kind of underwater structures spraying repair materials and preparation method thereof |
| CN110510932A (en) * | 2019-09-12 | 2019-11-29 | 深圳市奇信集团股份有限公司 | A kind of self-healing polymer cement waterproof paint and preparation method thereof |
| CN111501510B (en) * | 2020-06-03 | 2021-07-30 | 林能佑 | Microcrack repairing process for bridge deck |
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| US4614755A (en) * | 1985-02-04 | 1986-09-30 | Rodgers Jack L | Protective coating composition comprising a blend of polyvinyl acetate, hydraulic cement, EVA, and limestone |
| CN1480504A (en) * | 2003-07-18 | 2004-03-10 | 上海龙洲新型建材有限公司 | Strong and flexble composited waterproofing material in base of cement |
| CN1686912A (en) * | 2005-04-04 | 2005-10-26 | 上海龙洲新型建材有限公司 | Method for manufacturing inflexible and flexible composite waterproof material based on macromolecule cement |
| US8715819B2 (en) * | 2010-03-12 | 2014-05-06 | Imet Corporation | Waterproof, thermal insulating radiant reflective roofing laminate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173728A (en) * | 2010-12-22 | 2011-09-07 | 北京东方雨虹防水技术股份有限公司 | Self-healing polymer cement waterproofing coating and preparation process thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614755A (en) * | 1985-02-04 | 1986-09-30 | Rodgers Jack L | Protective coating composition comprising a blend of polyvinyl acetate, hydraulic cement, EVA, and limestone |
| CN1480504A (en) * | 2003-07-18 | 2004-03-10 | 上海龙洲新型建材有限公司 | Strong and flexble composited waterproofing material in base of cement |
| CN1686912A (en) * | 2005-04-04 | 2005-10-26 | 上海龙洲新型建材有限公司 | Method for manufacturing inflexible and flexible composite waterproof material based on macromolecule cement |
| US8715819B2 (en) * | 2010-03-12 | 2014-05-06 | Imet Corporation | Waterproof, thermal insulating radiant reflective roofing laminate |
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