CN104129950A - High flexible fiber reinforced polymer cement waterproof coating - Google Patents
High flexible fiber reinforced polymer cement waterproof coating Download PDFInfo
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- CN104129950A CN104129950A CN201410380090.1A CN201410380090A CN104129950A CN 104129950 A CN104129950 A CN 104129950A CN 201410380090 A CN201410380090 A CN 201410380090A CN 104129950 A CN104129950 A CN 104129950A
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Abstract
The invention discloses a high flexible fiber reinforced polymer cement waterproof coating comprising the following raw materials by mass: 25%-50% of polymer emulsion, 25%-40% of cement, 20%-40% of composite filler, 0.5%-2% of rmethyl silicone oil, 0.2%-0.5% of a poly carboxylic acid water reducing agent, 0.1%-1% of polyacrylamide, 0.05%-0.5% of polyethylene glycol, 0.05%-0.1% of fiber and 0.1%-1% of LD super hydrophobic interface agent; the polymer emulsion is vinyl acetate-ethylene copolymer emulsion; the composite filler is a quartz sand, heavy calcium carbonate and wollastonite powder mixture treated by a silane coupling agent; the fiber is a mixture of nitrogen plasma modified polypropylene monofilament fiber, lignin fiber and polypropylene mold crack fiber; and when in use, a liquid material and powder are mixed evenly for coating operation. Compared with the prior art, the water resistance and impermeability are improved, and the tensile strength and flexibility are increased.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of high flexibility fiber reinforced type polymer cement waterproof paint.
Background technology
In recent years, along with developing rapidly of China's building trade, leakage of building has become the second largest problem that affects construction quality except building structure, and building safety and building life are had to material impact.In order to solve a difficult problem for buildings waterproof, China promotes the research and development of architectural waterproof material energetically, polymer cement waterproof paint is as class environment-friendly building materials, because it meets the reasons such as environmental requirement, technical feature are good, good economy performance, develops very rapid.
Polymer cement waterproof paint is the large classification that in building water-proof paint, recent two decades grows up, that to take polymer emulsion and cement be main raw material, filler and other auxiliary agents are formulated in addition, through moisture evaporation and hydrated cementitious film-forming, be applicable to the double-component aqueous waterproof paint of a class that building construction and ced coating film waterproof are used.The advantage that extensibility, water-repellancy and hydraulic material intensity are high, easy and wet base coheres that this type of coating has polymer coating film concurrently, and can regulate the performances such as snappiness and intensity according to different engineerings or the design requirements of different engineerings position, constructional method is flexible.
Due to polymer cement waterproof paint development rapidly, be widely used, and of a great variety, at present the research of polymer cement waterproof paint is had many, but for the research of fiber reinforced type polymer cement waterproof paint but seldom.For example, the patent of the patent publication No. CN1718652A of University Of Science and Technology Of Shandong discloses a kind of fiber reinforced type polymer cement waterproof paint, this invention is actually the usefulness of having utilized the structural re-enforcement of fiber in cement products to substitute the applied glass-fiber-fabric of traditional construction or non-woven fabrics, make the tensile strength of coating can reach the required requirement of traditional technology on the one hand, can also effectively prevent the coating layering that adding of glass-fiber-fabric or non-woven fabrics is caused, make coating structure finer and close, water resistance is more excellent.Although this invention has changed the form of construction work of traditional buildings waterproof complexity by the adjustment of starting material component, make to construct convenient, efficient, it is only to rest on considering tensile strength to the pursuit of material property.Consider existing application polymer cement waterproof paint product its not only require tensile strength high, and require to there is larger toughness (unit elongation), very high cementability and good water resistance, obviously the range of application of its product is also narrower, performance is comparatively single, also needs further expansion.
Summary of the invention
The object of the invention is to provide a kind of high flexibility fiber reinforced type polymer cement waterproof paint, and this coating tensile strength is high, and snappiness is strong, large with basic unit cohesive force, nontoxic pollution-free, and environmental protection, and water resistance is excellent.
For achieving the above object, adopt technical scheme as follows:
A polymer cement waterproof paint, its raw material composition is by mass percentage:
Polymer emulsion 25%-50%, cement 25%-40%, compounded mix 20%-40%, methyl-silicone oil 0.5%-2%, polycarboxylate water-reducer 0.2%-0.5%, polyacrylamide 0.1%-1%, polyoxyethylene glycol 0.05%-0.5%, fiber 0.05%-0.1%, LD super-hydrophobicity interfacial agents 0.1%-1%;
Wherein, described polymer emulsion is vinyl acetate-ethylene copolymer emulsion;
Described compounded mix is the mixture of the quartz sand through silane coupling agent processing, water-ground limestone, wollastonite powder;
Described fiber is the mixing in nitrogen gas ions modified polypropylene monofilaments fiber, lignin fibre, polypropylene mold crack fiber;
During use, liquid material and powder are mixed and can brush construction.
Press such scheme, described polymer emulsion minimum film-forming temperature is-8 ℃, and solid content is between 48%-50%, and viscosity is between 500-1500mPa.s, and pH is between 4-5.
Press such scheme, each composition quality of described compounded mix is than quartz sand: water-ground limestone: wollastonite powder: silane coupling agent=1:0.4:0.02:0.04, quartz sand is 150-300 order, water-ground limestone 400 orders, and each composition mixed grinding evenly obtains compounded mix.
Press such scheme, nitrogen gas ions modified polypropylene monofilaments fiber in described fiber: lignin fibre: polypropylene mold crack fiber=6:2:3, fiber length ranges is: 3-15mm.
Press such scheme, in described raw material, the mass ratio of polymkeric substance dry measure and cement should be controlled between 0.4-1.0.
The invention has the beneficial effects as follows:
First, the present invention adds conjugated fibre can stop the expansion in cement matrix native defect crack on the one hand, and effectively stop and delay the appearance in new crack, simultaneously, can improve the density of body, the tensile strength that can effectively improve coating, stops the intrusion of extraneous moisture, to improve water tolerance and impermeability.
The second, the mixture of the quartz sand that the present invention's compounded mix employing used silane coupling agent is processed, water-ground limestone, wollastonite powder, this filler can effectively improve the structure of coating.First, the main stuffing that adds traditional quartz sand to can be used as coating replaces cement to support the structure of filming, and improves tensile strength, can reduce cement consumption simultaneously; Secondly, compound this low-pole material of water-ground limestone in filler has certain active function when polymer cement waterproof paint moulding, can be by regulating pH value, thus regulate the hydration rate of cement and the moulding process of waterproof coating.The silico-calcium ratio of filming has been adjusted in adding of wollastonite powder, and the enhancing of coating structure is played to promoter action.Meanwhile, the compounded mix of processing through powdery linking agent has better dispersion effect and degree of compactness, joins tensile strength and the snappiness that in filming, can significantly improve coating.
The 3rd, the present invention has added LD super-hydrophobicity interfacial agents, can further strengthen the water resistance of coating.LD super-hydrophobicity interfacial agents can be used as coatings additive(s); at coating surface, form the hydrophobic protective film of one deck; can greatly improve water proof anti-seepage, guarantor's look, weathering resistance, acid rain resistant and the self-cleaning function of water-borne coatings, expand greatly range of application of the present invention.
Embodiment
Following examples are explaination technical scheme of the present invention further, but not as limiting the scope of the invention.
Polymer cement waterproof paint of the present invention, its raw material is pressed mass percent and is weighed:
Polymer emulsion 25%-50%, cement 25%-40%, compounded mix 20%-40%, methyl-silicone oil 0.5%-2%, polycarboxylate water-reducer 0.2%-0.5%, polyacrylamide 0.1%-1%, polyoxyethylene glycol 0.05%-0.5%, fiber 0.05%-0.1%, LD super-hydrophobicity interfacial agents 0.1%-1%; Wherein, polymer emulsion is vinyl acetate-ethylene copolymer emulsion; Compounded mix is the mixture of the quartz sand through silane coupling agent processing, water-ground limestone, wollastonite powder; Fiber is the mixing in nitrogen gas ions modified polypropylene monofilaments fiber, lignin fibre, polypropylene mold crack fiber; During use, liquid material and powder are mixed and can brush construction.
Wherein, polymer emulsion minimum film-forming temperature is-8 ℃, and solid content is between 48%-50%, and viscosity is between 500-1500mPa.s, and pH is between 4-5.
Each composition quality of compounded mix is than quartz sand: water-ground limestone: wollastonite powder: silane coupling agent=1:0.4:0.02:0.04, and quartz sand is 150-300 order, water-ground limestone 400 orders, each composition mixed grinding evenly obtains compounded mix.
Nitrogen gas ions modified polypropylene monofilaments fiber in fiber: lignin fibre: polypropylene mold crack fiber=6:2:3, fiber length ranges is at 3-15mm.
The polymer cement ratio of coating (ratio of polymer emulsion dry measure and cement quality) should be controlled between 0.4-1.0.
Prepared polymer cement waterproof paint tensile strength is good, reach as high as 8.7MPa, on average reach 4MPa, surpass 120% of GB/T23445-2009 requirement, elongation at break can reach 200%, and low temperature flexibility is good, and wet base adhesive property reaches 2.0MPa, superstate standard far away, its watertightness is good.Compare with existing polymer cement waterproof paint, have tensile strength high, toughness is strong, and water resistance is good, the advantage of applied range.Therefore, this product is a kind of high performance polymer modified cement waterproofing coating of environmental type, can be widely used in modern construction engineering waterproof.
Embodiment 1:
A kind of high flexibility fiber reinforced type polymer cement waterproof paint, polymer cement ratio is 0.4, its feed composition by weight percentage ratio is counted: vinyl acetate-ethylene copolymer emulsion: 28%, and cement: 34%, compounded mix: 36%, methyl-silicone oil: 0.5%, polycarboxylate water-reducer (KH-5): 0.2%, polyacrylamide: 0.2%, polyoxyethylene glycol: 0.05%, fiber: 0.05%, LD super-hydrophobicity interfacial agents: 1%.
Respectively liquid material part and powder part weighed separately and stirred, then two portions raw material being put into stirrer together, treating its even mixing brushing of can constructing, generally brushing suitable 2-3 time.
The fundamental property of the high flexibility fiber reinforced type polymer cement waterproof paint of gained of the present invention is: tensile strength 2.5MPa (>=1.8MPa), tension set 185% (>=80%), low temperature flexibility (Φ 10mm rod) is up to standard, cohesive strength 1.7MPa (>=1.0MPa), watertightness (0.3MPa, 30min) is good.
Embodiment 2:
A kind of high flexibility fiber reinforced type polymer cement waterproof paint, polymer cement ratio is 0.6, its feed composition is by mass percentage: vinyl acetate-ethylene copolymer emulsion: 37%, and cement: 30%, compounded mix: 31%, methyl-silicone oil: 0.5%, KH-5:0.2%, polyacrylamide: 0.2%, polyoxyethylene glycol: 0.05%, fiber: 0.05%, LD super-hydrophobicity interfacial agents: 1%.
Respectively liquid material part and powder part weighed separately and stirred, then two portions raw material being put into stirrer together, treating its even mixing brushing of can constructing, generally brushing suitable 2-3 time.
The fundamental property of the high flexibility fiber reinforced type polymer cement waterproof paint of gained of the present invention is: tensile strength 4.7MPa (>=1.8MPa), tension set 160% (>=80%), low temperature flexibility (Φ 10mm rod) is up to standard, cohesive strength 1.6MPa (>=1.0MPa), watertightness (0.3MPa, 30min) is good.
Embodiment 3:
A kind of high flexibility fiber reinforced type polymer cement waterproof paint, polymer cement ratio is 0.8, its feed composition by weight percentage ratio is counted: vinyl acetate-ethylene copolymer emulsion: 43%, and cement: 27%, compounded mix: 28%, methyl-silicone oil: 0.5%, KH-5:0.2%, polyacrylamide: 0.2%, polyoxyethylene glycol: 0.05%, fiber: 0.05%, LD super-hydrophobicity interfacial agents: 1%.
Respectively liquid material part and powder part weighed separately and stirred, then two portions raw material being put into stirrer together, treating its even mixing brushing of can constructing, generally brushing suitable 2-3 time.
The fundamental property of the high flexibility fiber reinforced type polymer cement waterproof paint of gained of the present invention is: tensile strength 6.3MPa (>=1.8MPa), tension set 120% (>=80%), low temperature flexibility (Φ 10mm rod) is up to standard, cohesive strength 1.3MPa (>=1.0MPa), watertightness (0.3MPa, 30min) is good.
Embodiment 4:
A kind of high flexibility fiber reinforced type polymer cement waterproof paint, polymer cement ratio is 1.0, its feed composition by weight percentage ratio is counted: vinyl acetate-ethylene copolymer emulsion: 48%, and cement: 25%, compounded mix: 25%, methyl-silicone oil: 0.5%, KH-5:0.2%, polyacrylamide: 0.2%, polyoxyethylene glycol: 0.05%, fiber: 0.05%, LD super-hydrophobicity interfacial agents: 1%.
Respectively liquid material part and powder part weighed separately and stirred, then two portions raw material being put into stirrer together, treating its even mixing brushing of can constructing, generally brushing suitable 2-3 time.
The fundamental property of the high flexibility fiber reinforced type polymer cement waterproof paint of gained of the present invention is: tensile strength 8.1MPa (>=1.8MPa), tension set 105% (>=80%), low temperature flexibility (Φ 10mm rod) is up to standard, cohesive strength 1.2MPa (>=1.0MPa), watertightness (0.3MPa, 30min) is good.
Claims (5)
1. a polymer cement waterproof paint, is characterized in that raw material forms and is by mass percentage:
Polymer emulsion 25%-50%, cement 25%-40%, compounded mix 20%-40%, methyl-silicone oil 0.5%-2%, polycarboxylate water-reducer 0.2%-0.5%, polyacrylamide 0.1%-1%, polyoxyethylene glycol 0.05%-0.5%, fiber 0.05%-0.1%, LD super-hydrophobicity interfacial agents 0.1%-1%;
Wherein, described polymer emulsion is vinyl acetate-ethylene copolymer emulsion;
Described compounded mix is the mixture of the quartz sand through silane coupling agent processing, water-ground limestone, wollastonite powder;
Described fiber is the mixing in nitrogen gas ions modified polypropylene monofilaments fiber, lignin fibre, polypropylene mold crack fiber;
During use, liquid material and powder are mixed and can brush construction.
2. polymer cement waterproof paint as claimed in claim 1, is characterized in that described polymer emulsion minimum film-forming temperature is-8 ℃, and solid content is between 48%-50%, and viscosity is between 500-1500mPa.s, and pH is between 4-5.
3. polymer cement waterproof paint as claimed in claim 1, it is characterized in that each composition quality of described compounded mix is than quartz sand: water-ground limestone: wollastonite powder: silane coupling agent=1:0.4:0.02:0.04, quartz sand is 150-300 order, water-ground limestone 400 orders, each composition mixed grinding evenly obtains compounded mix.
4. polymer cement waterproof paint as claimed in claim 1, is characterized in that nitrogen gas ions modified polypropylene monofilaments fiber in described fiber: lignin fibre: polypropylene mold crack fiber=6:2:3, fiber length ranges is: 3-15mm.
5. polymer cement waterproof paint as claimed in claim 1, is characterized in that in raw material, the mass ratio of polymkeric substance dry measure and cement should be controlled between 0.4-1.0.
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Cited By (11)
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| CN104829207A (en) * | 2015-04-07 | 2015-08-12 | 安徽朗凯奇防水科技股份有限公司 | Polymer cement waterproof coating |
| CN106699066A (en) * | 2017-01-07 | 2017-05-24 | 成都市嘉洲新型防水材料有限公司 | Two-component polyacrylate waterproof coating and waterproof engineering construction method thereof |
| CN106967316A (en) * | 2017-03-23 | 2017-07-21 | 柳州弘天科技有限公司 | One kind bonds strong coating |
| CN107641447A (en) * | 2017-10-30 | 2018-01-30 | 惠州市华昱美实业有限公司 | A kind of water-repellent paint formula and preparation method |
| CN109053053A (en) * | 2018-09-28 | 2018-12-21 | 佛山齐安建筑科技有限公司 | A kind of polymer cement waterproof paint |
| CN109553931A (en) * | 2018-12-13 | 2019-04-02 | 河南九阳复合材料有限公司 | A kind of novel environment-friendly water-based vinyl ester resin and preparation method thereof |
| CN109574557A (en) * | 2018-10-29 | 2019-04-05 | 裴泽民 | A kind of cement-base waterproof coating for building |
| CN111138147A (en) * | 2020-01-20 | 2020-05-12 | 山东高速齐鲁建设集团有限公司 | Waterproof construction method for building |
| CN113355000A (en) * | 2021-07-02 | 2021-09-07 | 南开大学 | Special polymer cement paint containing inorganic powder in liquid material |
| CN113861765A (en) * | 2021-10-27 | 2021-12-31 | 陕西交科新材料有限公司 | Aramid fiber modified polymer cement waterproof coating and preparation method thereof |
| CN114085585A (en) * | 2021-12-23 | 2022-02-25 | 云南欣城防水科技有限公司 | Basalt fiber modified polymer cement waterproof coating |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104829207B (en) * | 2015-04-07 | 2017-03-01 | 安徽朗凯奇防水科技股份有限公司 | Polymer cement waterproof paint |
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| CN106699066A (en) * | 2017-01-07 | 2017-05-24 | 成都市嘉洲新型防水材料有限公司 | Two-component polyacrylate waterproof coating and waterproof engineering construction method thereof |
| CN106967316A (en) * | 2017-03-23 | 2017-07-21 | 柳州弘天科技有限公司 | One kind bonds strong coating |
| CN107641447A (en) * | 2017-10-30 | 2018-01-30 | 惠州市华昱美实业有限公司 | A kind of water-repellent paint formula and preparation method |
| CN109053053A (en) * | 2018-09-28 | 2018-12-21 | 佛山齐安建筑科技有限公司 | A kind of polymer cement waterproof paint |
| CN109574557A (en) * | 2018-10-29 | 2019-04-05 | 裴泽民 | A kind of cement-base waterproof coating for building |
| CN109553931A (en) * | 2018-12-13 | 2019-04-02 | 河南九阳复合材料有限公司 | A kind of novel environment-friendly water-based vinyl ester resin and preparation method thereof |
| CN111138147A (en) * | 2020-01-20 | 2020-05-12 | 山东高速齐鲁建设集团有限公司 | Waterproof construction method for building |
| CN111138147B (en) * | 2020-01-20 | 2021-02-19 | 山东高速齐鲁建设集团有限公司 | Waterproof construction method for building |
| CN113355000A (en) * | 2021-07-02 | 2021-09-07 | 南开大学 | Special polymer cement paint containing inorganic powder in liquid material |
| CN113861765A (en) * | 2021-10-27 | 2021-12-31 | 陕西交科新材料有限公司 | Aramid fiber modified polymer cement waterproof coating and preparation method thereof |
| CN113861765B (en) * | 2021-10-27 | 2022-07-08 | 陕西交科新材料有限公司 | Aramid fiber modified polymer cement waterproof coating and preparation method thereof |
| CN114085585A (en) * | 2021-12-23 | 2022-02-25 | 云南欣城防水科技有限公司 | Basalt fiber modified polymer cement waterproof coating |
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