CN104129950B - A kind of high flexibility fiber reinforced type polymer cement waterproof paint - Google Patents
A kind of high flexibility fiber reinforced type polymer cement waterproof paint Download PDFInfo
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- CN104129950B CN104129950B CN201410380090.1A CN201410380090A CN104129950B CN 104129950 B CN104129950 B CN 104129950B CN 201410380090 A CN201410380090 A CN 201410380090A CN 104129950 B CN104129950 B CN 104129950B
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Abstract
The invention discloses a kind of high flexibility fiber reinforced type 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%; Described polymer emulsion is VAE emulsion; Compounded mix is the mixture through the quartz sand of silane coupling agent process, water-ground limestone, wollastonite powder; Fiber is the mixing in the modifies polypropylene monofilament fiber of Nitrogen ion, lignin fibre, polypropylene mold crack fiber; During use, liquid material and powder are mixed and can brush construction.Improve water tolerance and impermeability relative to prior art, improve tensile strength and snappiness simultaneously.
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 affecting construction quality except building structure, has material impact to building safety and building life.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, as class environment-friendly building materials, because it meets the reasons such as environmental requirement, technical feature are excellent, 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, for main raw material with polymer emulsion and cement, in addition filler and other auxiliary agents formulated, through moisture evaporation and hydrated cementitious film-forming, the double-component aqueous waterproof paint of a class that is applicable to building construction and ced coating film waterproof.This type of coating has the extensibility of polymer coating film, water-repellancy concurrently and hydraulic material intensity is high, easily and the wet base advantage of cohering, and the performance such as snappiness and intensity can be regulated according to different engineering or the design requirements of different engineering positions, constructional method is flexible.
Because polymer cement waterproof paint development is rapid, be widely used, and of a great variety, have many to the research of polymer cement waterproof paint at present, but little for the research of fiber reinforced type polymer cement waterproof paint.Such as, University Of Science and Technology Of Shandong patent publication No. CN1718652A patent discloses a kind of fiber reinforced type polymer cement waterproof paint, this invention is actually and make use of the usefulness that the structural re-enforcement of fiber in cement products instead of glass-fiber-fabric that traditional construction applies or non-woven fabrics, make on the one hand the tensile strength of coating can reach requirement needed for traditional technology, what effectively can also prevent glass-fiber-fabric or non-woven fabrics adds caused coating layering, 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 components, make construction convenient, efficient, it is only rest on considering tensile strength to the pursuit of material property.Consider existing application polymer cement waterproof paint product its not only require that tensile strength is high, and require that there is larger toughness (unit elongation), very high cementability and excellent 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, environmental protection, and water resistance is excellent.
For achieving the above object, adopt technical scheme as follows:
A kind of 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 VAE emulsion;
Described compounded mix is the mixture through the quartz sand of silane coupling agent process, water-ground limestone, wollastonite powder;
Described fiber is the mixing in the modifies polypropylene monofilament fiber of Nitrogen ion, lignin fibre, polypropylene mold crack fiber;
During use, liquid material and powder are mixed and can brush construction.
By such scheme, described polymer emulsion minimum film-forming temperature is-8 DEG C, and solid content is between 48%-50%, and viscosity is between 500-1500mPa.s, and pH is between 4-5.
By such scheme, the 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 order, and each composition mixed grinding evenly obtains compounded mix.
By such scheme, the modifies polypropylene monofilament fiber of Nitrogen ion in described fiber: lignin fibre: polypropylene mold crack fiber=6:2:3, fiber length ranges is: 3-15mm.
By such scheme, in described raw material, the mass ratio of polymkeric substance dry measure and cement should control between 0.4-1.0.
The invention has the beneficial effects as follows:
First, the present invention adds the expansion that conjugated fibre can stop cement matrix native defect crack on the one hand, and effectively stop and delay the appearance in new crack, simultaneously, the density of body can be improved, effectively can improve the tensile strength of coating, stop the intrusion of outside moisture, to improve water tolerance and impermeability.
The second, the present invention's compounded mix used adopts the mixture of the quartz sand of silane coupling agent process, water-ground limestone, wollastonite powder, and this filler effectively can improve the structure of coating.First, adding traditional quartz sand can replace cement to support the structure of film as the main stuffing of coating, improves tensile strength, can reduce cement consumption simultaneously; Secondly, in filler, this low-pole material of the water-ground limestone of compound, has certain active function when polymer cement waterproof paint is shaping, by adjust ph, thus regulates the hydration rate of cement and the moulding process of waterproof coating.Adding of wollastonite powder, have adjusted the silico-calcium ratio of film, promoter action is played to the enhancing of coating structure.Meanwhile, the compounded mix through the process of powdery linking agent has better dispersion effect and degree of compactness, joins the tensile strength and snappiness that can significantly improve coating in film.
3rd, the present invention with the addition of LD super-hydrophobicity interfacial agents, can strengthen the water resistance of coating further.LD super-hydrophobicity interfacial agents can be used as coatings additive(s); the hydrophobic protective film of one deck is formed at coating surface; the water proof anti-seepage of water-borne coatings can be significantly improved, protect look, weathering resistance, acid rain resistance and self-cleaning function, expand range of application of the present invention greatly.
Embodiment
Following examples explain technical scheme of the present invention further, but not as limiting the scope of the invention.
Inventive polymers cement waterproof paint, 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 VAE emulsion; Compounded mix is the mixture through the quartz sand of silane coupling agent process, water-ground limestone, wollastonite powder; Fiber is the mixing in the modifies polypropylene monofilament fiber of Nitrogen ion, 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 DEG C, and solid content is between 48%-50%, and viscosity is between 500-1500mPa.s, and pH is between 4-5.
The 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 order, and each composition mixed grinding evenly obtains compounded mix.
The modifies polypropylene monofilament fiber of Nitrogen ion in fiber: lignin fibre: polypropylene mold crack fiber=6:2:3, fiber length ranges is at 3-15mm.
The polymer cement ratio (ratio of polymer emulsion dry measure and cement quality) of coating should control between 0.4-1.0.
Obtained polymer cement waterproof paint tensile strength is good, reach as high as 8.7MPa, on average reach 4MPa, more than GB/T23445-2009 requires 120%, elongation at break can reach 200%, and low temperature flexibility is excellent, and wet base adhesive property reaches 2.0MPa, superstate standard far away, its watertightness is excellent.Compared 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 percentage is: VAE emulsion: 28%, 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 that its Homogeneous phase mixing can be constructed brushing, general brushing should 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 excellent.
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: VAE emulsion: 37%, 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 that its Homogeneous phase mixing can be constructed brushing, general brushing should 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 excellent.
Embodiment 3:
A kind of high flexibility fiber reinforced type polymer cement waterproof paint, polymer cement ratio is 0.8, its feed composition percentage is: VAE emulsion: 43%, 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 that its Homogeneous phase mixing can be constructed brushing, general brushing should 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 excellent.
Embodiment 4:
A kind of high flexibility fiber reinforced type polymer cement waterproof paint, polymer cement ratio is 1.0, its feed composition percentage is: VAE emulsion: 48%, 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 that its Homogeneous phase mixing can be constructed brushing, general brushing should 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 excellent.
Claims (5)
1. a polymer cement waterproof paint, is characterized in that 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 VAE emulsion;
Described compounded mix is the mixture through the quartz sand of silane coupling agent process, water-ground limestone, wollastonite powder;
Described fiber is the mixing in the modifies polypropylene monofilament fiber of Nitrogen ion, 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, it is characterized in that described polymer emulsion minimum film-forming temperature is-8 DEG C, 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 in described compounded mix, each composition quality is than being Shi Ying Sha ﹕ Chong matter Tan Suan Gai ﹕ Gui ash Shi Fen ﹕ silane coupling agent=1 ﹕ 0.4 ﹕ 0.02 ﹕ 0.04, quartz sand is 150-300 order, water-ground limestone 400 order, each composition mixed grinding evenly obtains compounded mix.
4. polymer cement waterproof paint as claimed in claim 1, it is characterized in that Nitrogen ion modifies polypropylene monofilament fibre dimension ﹕ wood matter cellulose fiber ﹕ polypropylene mold crack fiber=6 ﹕ 2 ﹕ 3 in described fiber, fiber length ranges is 3-15mm.
5. polymer cement waterproof paint as claimed in claim 1, is characterized in that the mass ratio of polymkeric substance dry measure and cement in raw material should control between 0.4-1.0.
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| CN201410380090.1A CN104129950B (en) | 2014-08-04 | 2014-08-04 | A kind of high flexibility fiber reinforced type polymer cement waterproof paint |
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Families Citing this family (11)
| 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 |
| 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 |
| 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 |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101230214B (en) * | 2008-02-26 | 2010-06-02 | 武汉理工大学 | Cement-based luminous ceramic-imitation dry powder coating and preparation method thereof |
| CN101234874B (en) * | 2008-02-26 | 2010-06-09 | 武汉理工大学 | Cement-base rigidity water-proofing material and preparing method thereof |
| CN101386719B (en) * | 2008-08-28 | 2010-12-08 | 冯守中 | Multifunctional coatings and preparation method thereof |
| CN101560084B (en) * | 2009-06-02 | 2011-12-14 | 河北科技大学 | Environmental-friendly waterproof polymer mortar |
| US9663678B2 (en) * | 2012-08-10 | 2017-05-30 | Celanese Sales Germany Gmbh | Waterproofing coating compositions |
| CN103496917B (en) * | 2013-09-18 | 2015-07-22 | 武汉理工大学 | Ecologically functional interior and exterior wall inorganic coating and application method thereof |
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