CN105174870B - Polymer cement waterproof slurry prepared by a kind of superfine cement - Google Patents
Polymer cement waterproof slurry prepared by a kind of superfine cement Download PDFInfo
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- CN105174870B CN105174870B CN201510591940.7A CN201510591940A CN105174870B CN 105174870 B CN105174870 B CN 105174870B CN 201510591940 A CN201510591940 A CN 201510591940A CN 105174870 B CN105174870 B CN 105174870B
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Abstract
Polymer cement waterproof slurry prepared by a kind of superfine cement, belongs to building material field.Including powder and liquid material, with the calculating of mass fraction, 80 100 parts of styrene-acrylic emulsion in liquid material, 13 parts of defoamer, 13 parts of preservative, 50 150 parts of water；300 350 parts of superfine cement in powder, 150 200 parts of dicalcium powder, 100 150 parts of quartz sand, 0.1 5 parts of auxiliary agent.Waterproofing slurry, the invention avoids sand sedimentation phenomenon.Polymer cement waterproof slurry can make skeleton structure finer and close.
Description
Technical field
The present invention relates to a kind of waterproofing slurry for house decoration field, and in particular to a kind of superfine cement is prepared poly-
Compound cement water-proof slurry, belongs to building material field.
Background technology
Polymer modified cementitions material is widely used in house ornamentation waterproof field, is mainly had in terms of three
Reason：First, polymer cement class material volatile organic matter content is extremely low, has no irritating odor, is suitable for relative closure
House ornamentation waterproof construction environment；2nd, polymer modified cementitions material product cost is high, is meeting the condition of house ornamentation waterproof requirement
Under, house ornamentation expense will not be significantly increased；3rd, polymer modified cementitions material and basic unit and tile decorative surface system have well
Matching and compatibility, performance long durability can be excellent, and impermeable, ceramic tile hollowing and does not come off.
Polymer modified cementitions material common at present mainly has polymer cement waterproof paint (to perform GB/T
23445) with polymer waterproofing slurry (performing JC/T 2090) two class products, wherein polymer cement waterproof paint product is bullet
Property product, have elongation percentage requirement；Polymer cement waterproof slurry products are relative stiffness products, there is certain pliability,
General elasticity is smaller or does not possess elasticity.
Polymer cement waterproof slurry is made of polymer emulsion and cement base powder, is made up of and is caused polymer and cement
The membrane structure of close " interpenetrating networks ", realizes water-proof function；Wherein, cement base powder is skeleton structure, and component of polymer is to bone
Slight void in frame structure is closed, and forms unified entirety.
Applicants have discovered that common cement is mostly normal silicate water in polymer cement waterproof slurry cement original washing powder material
Mud, this kind of cement applications are extensive, are more easy to get, but the waterproofing slurry prepared by Portland cement is in actual application
There is problems with：First, Portland cement due to particle it is relatively large, it is opposite to serve as hole caused by skeleton structure
It is larger, it is necessary to more polymer fill up hole, therefore polymer volume is opposite increases；2nd, Portland cement
Particle is relatively large, and when being brushed in basic unit, the infiltration, anchoring property to basic unit are limited, and adhesion strength is easily by basic unit's condition
Influence；3rd, Portland cement specific surface area is relatively small, generally (350-400) m2/ kg, it is more sensitive to water consumption,
Agitated obtained waterproofing slurry in use, easily produces the phenomenon of aggregate sedimentation, influences final waterproof effect.
Cement water-proof slurry is that one kind is modified cement material using polymer, realizes that the film class of water-proof function is prevented
The effect of water material, wherein cement in film is mainly water-fast and skeleton, and polymer plays the role of hole between closing skeleton；
Currently used is Portland cement, its specific surface area is about 350-400m2/ kg, when it is as skeleton, due to particle
Footpath is relatively large, and hole is more, it is necessary to which further amounts of polymer is filled, and polymer utilization rate is relatively low；And it is made
Standby waterproofing slurry suspendability is relatively poor, easily produces the settlement influence waterproof effect of filler sand.
Superfine cement applies less, wherein CN201180009707.3 in polymer-modified cement waterproof material《Polymerization
Thing cement base coating waterproofing agent and its manufacture method》, in technical solution disclosed in it, polyalcohol cement basis coating waterproofing agent is real
Matter is polymer cement waterproof paint, i.e., based on polymer, flexible waterproof material, and containing superfine cement, but dosage
It is less, with based on cement, the polymer cement waterproof slurry of aobvious rigidity characteristic have the difference of essence.
The content of the invention
The purpose of the present invention is overcome the problems of the prior art, there is provided polymer cement prepared by a kind of superfine cement is prevented
Water slurry, mainly solves the polymer cement waterproof slurry free settling of Portland cement preparation, adhesion strength is easily by base
The problem of layer situation influences, and increase the compactness of waterproofing slurry film, the anti-permeability performance of waterproofing slurry is lifted, and further carry
Its high toughness.
Polymer cement waterproof slurry prepared by a kind of superfine cement, including powder and liquid material, with the calculating of mass fraction,
Styrene-acrylic emulsion 80-100 parts in liquid material, 1-3 parts of defoamer, 1-3 parts of preservative, 50-150 parts of water；Superfine cement 300- in powder
350 parts, 150-200 parts of dicalcium powder, 100-150 parts of quartz sand, 0.1-5 parts of auxiliary agent.
It is preferred that the styrene-acrylic emulsion for building that it is 0-5 DEG C that the styrene-acrylic emulsion, which is glass transition temperature,；Further preferred institute
Styrene-acrylic emulsion solid content is 40%-50%, and glass transition temperature is 0 DEG C；Defoamer is organic silicon defoamer；Anti-corrosion
Agent is compound for Kathon CG and Bronopol；Water is tap water.
It is preferred that it is 700-1100m that the superfine cement, which is specific surface area,2The cement of/kg.
It is preferred that its grain diameter of the dicalcium powder is 325 mesh；The quartz sand particle particle diameter is 80-120 mesh；It is described to help
Agent is the hydroxypropyl methyl cellulose ether that room temperature viscosity is 5000-20000mPas.
Inventive polymers cement water-proof slurry, finely dispersed liquid material and powder are mixed, and are made uniform
Slurry, has base material stronger permeability and anchor force, shows as the cohesive force higher with basic unit；Obtained waterproofing slurry suspends
Property is stronger, will not produce the sedimentation phenomenon of sand；Cured waterproofing slurry film is finer and close, and waterproof effect and anti-permeability performance are obvious
Lifting；Comprehensive performance is obviously improved relative to waterproofing slurry prepared by Portland cement.
Superfine cement using the present invention prepares polymer cement waterproof slurry, and skeleton structure can be made finer and close, reduces
Gap in skeleton, it is less to reach the dosage of polymer in the case of identical waterproof effect, lifts the utilization rate of polymer, also may be used
Reduce product cost；Polymer cement waterproof slurry prepared by superfine cement can penetrate into the deeper inside of basic unit, strengthen waterproofing slurry
With the anchor force of base material, the adhesion strength of lifting waterproofing slurry and base material；Superfine cement specific surface area is much larger than normal silicate
Cement, its in water there is good suspension and dispersing characteristic, obtained waterproofing slurry suspension, homogeneity are stronger, avoid
Sand sedimentation phenomenon.
Embodiment
With reference to embodiment, the present invention will be further described, but the present invention is not limited to following embodiments.
Embodiment 1
The polymer cement waterproof slurry of the present embodiment in terms of mass fraction, consisting of：80 parts of styrene-acrylic emulsion in liquid material,
1 part of defoamer, 1 part of preservative, 150 parts of water；300 parts of superfine cement in powder, 200 parts of dicalcium powder, 100 parts of quartz sand, auxiliary agent 5
Part.Liquid material and powder are sufficiently stirred, uniform slurry is made, and according to method as defined in JC/T 2090-2011 standards to it
Key mechanics performance is tested, and test result is as shown in table 1.
Embodiment 2
The polymer cement waterproof slurry of the present embodiment in terms of mass fraction, consisting of：90 parts of styrene-acrylic emulsion in liquid material,
2 parts of defoamer, 2 parts of preservative, 100 parts of water；330 parts of superfine cement in powder, 180 parts of dicalcium powder, 120 parts of quartz sand, auxiliary agent 2
Part.Liquid material and powder are sufficiently stirred, uniform slurry is made, and according to method as defined in JC/T 2090-2011 standards to it
Key mechanics performance is tested, and test result is as shown in table 1.
Embodiment 3
The polymer cement waterproof slurry of the present embodiment in terms of mass fraction, consisting of：Styrene-acrylic emulsion 100 in liquid material
Part, 3 parts of defoamer, 3 parts of preservative, 50 parts of water；350 parts of superfine cement in powder, 150 parts of dicalcium powder, 100 parts of quartz sand, is helped
0.1 part of agent.Liquid material and powder are sufficiently stirred, uniform slurry is made, and according to side as defined in JC/T 2090-2011 standards
Method tests its key mechanics performance, and test result is as shown in table 1.
Table 1
| Performance indicator | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Adhesion strength (MPa) | 1.8 | 2.1 | 2.2 |
| Impermeability pressure (MPa) | 1.5 | 1.8 | 1.9 |
| Transversely deforming (mm) | 4.4 | 5.2 | 5.8 |
| Whether standing is layered | It is no | It is no | It is no |
Comparative example 1
The polymer cement waterproof slurry of this comparative example in terms of mass fraction, consisting of：90 parts of styrene-acrylic emulsion in liquid material,
2 parts of defoamer, 2 parts of preservative, 106 parts of water；300 parts of Portland cement in powder, 200 parts of dicalcium powder, quartz sand 100
Part, 1 part of auxiliary agent.Liquid material and powder are sufficiently stirred, uniform slurry is made, and according to as defined in JC/T 2090-2011 standards
Method tests its key mechanics performance, and test result is as shown in table 2.
Comparative example 2
The polymer cement waterproof slurry of this comparative example in terms of mass fraction, consisting of：90 parts of styrene-acrylic emulsion in liquid material,
2 parts of defoamer, 2 parts of preservative, 106 parts of water；350 parts of Portland cement in powder, 150 parts of dicalcium powder, quartz sand 100
Part, 1 part of auxiliary agent.Liquid material and powder are sufficiently stirred, uniform slurry is made, and according to as defined in JC/T 2090-2011 standards
Method tests its key mechanics performance, and test result is as shown in table 2.
Embodiment 4
The polymer cement waterproof slurry of the present embodiment in terms of mass fraction, consisting of：90 parts of styrene-acrylic emulsion in liquid material,
2 parts of defoamer, 2 parts of preservative, 106 parts of water；300 parts of superfine cement in powder, 200 parts of dicalcium powder, 100 parts of quartz sand, auxiliary agent 1
Part.Liquid material and powder are sufficiently stirred, uniform slurry is made, and according to method as defined in JC/T 2090-2011 standards to it
Key mechanics performance is tested, and test result is as shown in table 2.
Table 2
| Performance indicator | Comparative example 1 | Comparative example 2 | Embodiment 4 |
| Adhesion strength (MPa) | 1.2 | 1.3 | 2.2 |
| Impermeability pressure (MPa) | 1.0 | 1.2 | 1.8 |
| Transversely deforming (mm) | 3.2 | 2.9 | 5.3 |
| Whether standing is layered | It is | It is | It is no |
Claims (6)
1. polymer cement waterproof slurry prepared by a kind of superfine cement, it is characterised in that including powder and liquid material, with mass parts
Several calculating, 80-100 parts of styrene-acrylic emulsion in liquid material, 1-3 parts of defoamer, 1-3 parts of preservative, 50-150 parts of water；It is ultra-fine in powder
300-350 parts of cement, 150-200 parts of dicalcium powder, 100-150 parts of quartz sand, 0.1-5 parts of auxiliary agent；The quartz sand particle particle diameter
For 80-120 mesh.
2. polymer cement waterproof slurry prepared by a kind of superfine cement according to claim 1, it is characterised in that the phenylpropyl alcohol
Lotion is the styrene-acrylic emulsion for building that glass transition temperature is 0-5 DEG C；Defoamer is organic silicon defoamer；Preservative is card
Pine and Bronopol are compound；Water is tap water.
3. polymer cement waterproof slurry prepared by a kind of superfine cement according to claim 2, it is characterised in that benzene used
Acrylic emulsion solid content is 40%-50%, and glass transition temperature is 0 DEG C.
4. polymer cement waterproof slurry prepared by a kind of superfine cement according to claim 1, it is characterised in that described ultra-fine
Cement is that specific surface area is 700-1100m2The cement of/kg.
5. polymer cement waterproof slurry prepared by a kind of superfine cement according to claim 1, it is characterised in that the coarse whiting
Its grain diameter of powder is 325 mesh；The auxiliary agent is the hydroxypropyl methyl cellulose ether that room temperature viscosity is 5000-20000mPas.
6. polymer cement waterproof slurry prepared by a kind of superfine cement according to claim 1, it is characterised in that in use,
Finely dispersed liquid material and powder are mixed, even slurry is made.
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| CN107417197B (en) * | 2017-04-27 | 2020-02-18 | 锦州东方雨虹建筑材料有限责任公司 | Exposed wear-resistant polymer cement waterproof slurry and preparation method thereof |
| CN107555891B (en) * | 2017-08-15 | 2020-06-02 | 东方雨虹民用建材有限责任公司 | Environment-friendly waterproof coating and preparation method thereof |
| CN107555910A (en) * | 2017-09-29 | 2018-01-09 | 佛山市涂无忧建材有限公司 | A kind of adhesion strength height and patch block gum of resistant slide and preparation method thereof |
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| CN102762678B (en) * | 2010-02-23 | 2015-03-18 | 河泰薰 | Polymer-based film waterproofing agent mixed with cement, and preparation method thereof |
| CN101967049A (en) * | 2010-04-02 | 2011-02-09 | 上海东方雨虹防水技术有限责任公司 | Bi-component waterproof paint for roads and bridges and preparation method thereof |
| CN102627432A (en) * | 2012-04-26 | 2012-08-08 | 昆明滇宝防水建材有限公司 | Modified polymer cement waterproof mortar |
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