CN1386809A - Water-proof polymer-cement paint with low polymer/cement ratio and high performance and its preparing process - Google Patents
Water-proof polymer-cement paint with low polymer/cement ratio and high performance and its preparing process Download PDFInfo
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- CN1386809A CN1386809A CN 02117853 CN02117853A CN1386809A CN 1386809 A CN1386809 A CN 1386809A CN 02117853 CN02117853 CN 02117853 CN 02117853 A CN02117853 A CN 02117853A CN 1386809 A CN1386809 A CN 1386809A
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- 239000003973 paint Substances 0.000 title claims abstract description 11
- 239000011414 polymer cement Substances 0.000 title claims description 24
- 239000004568 cement Substances 0.000 title claims description 23
- 229920000642 polymer Polymers 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 4
- 230000008569 process Effects 0.000 title description 2
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000011344 liquid material Substances 0.000 claims abstract description 16
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003469 silicate cement Substances 0.000 claims abstract description 6
- 238000004078 waterproofing Methods 0.000 claims abstract description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 5
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000004902 Softening Agent Substances 0.000 claims description 12
- 229920001577 copolymer Polymers 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 10
- 239000003995 emulsifying agent Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000013530 defoamer Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 239000006004 Quartz sand Substances 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 7
- 239000012874 anionic emulsifier Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000004160 Ammonium persulphate Substances 0.000 claims description 5
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- -1 polyoxyethylene Polymers 0.000 claims description 5
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 5
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 241000233855 Orchidaceae Species 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- 150000001346 alkyl aryl ethers Chemical class 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 238000006735 epoxidation reaction Methods 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical group O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 229910021645 metal ion Inorganic materials 0.000 claims description 2
- 229920001281 polyalkylene Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 229960001866 silicon dioxide Drugs 0.000 claims description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 238000004448 titration Methods 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 238000004132 cross linking Methods 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 239000011527 polyurethane coating Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- VHOQXEIFYTTXJU-UHFFFAOYSA-N Isobutylene-isoprene copolymer Chemical compound CC(C)=C.CC(=C)C=C VHOQXEIFYTTXJU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Paints Or Removers (AREA)
Abstract
A water-proof paint is composed of liquid material and powder. Said liquid material is prepared from 13 raw materials including methyl methylacrylate, styrene, butyl acrylate, acrylic acid, ammonium persulfate, etc. Said powder is prepared from silicate cement, powdered defoaming agent, disperser, water-proofing agent and aquartz sand. Its advantages are high adhesion and air permeability, high resistance to water, high temp, freezing and corrosion, and no toxicity.
Description
Technical field
The present invention relates to a kind of organic--inorganic composite waterproofing paint.
Background technology
At present, waterproofing work material commonly used has: pitch, malthoid, modified bituminous pitch coiled material and polymer coiled material, ointment, polyurethane coating etc.Use bituminous material, the heat construction contaminate environment, construction trouble and dangerous, pitch is easily aging, and high temperature easily trickles, fragile under low temperature splitting, work-ing life is very short; Coiled material should not be constructed at complex-shaped position, receipts limit difficulty, moist basal plane bonding force is very poor, and coiled material is airtight, the volatilization of structures steam causes hollowing often, and when construction seam a lot, as long as place water inlet is arranged, because coiled material bottom hollowing, the water route is communicated with, tend to cause the big area seepage, and be difficult for finding drain-source, be difficult to repair.Ointment and polyurethane coating can not be in moist basal plane constructions, contaminate environment, and ageing resistance is relatively poor.
Polymer cement waterproof paint (hereinafter to be referred as JS) but be a kind of nontoxic wet trade of developing in recent years, the new green environment protection water-proof material of easy construction, it is the two-pack waterproof paint based on aqueous polymer dispersions and cement, two components stir into even, fine and smooth slurry at the scene, the brushing or be sprayed at matrix surface, can form pliable and tough, high-strength waterproof coating after the curing.The existing cement class of this coating gelling material intensity height, easy and moist basal plane bonding, have again that polymer coating film elasticity is big, the advantage of good waterproof performance concurrently, especially with water as carrier, overcome the drawback of pitch, tar, organic solvent type water-proof material contaminate environment.It is not only applicable to various waterproofing works, also can be used for repairing work, interface processing, concrete protection, decoration, sealing structure etc.Just because of this, this material has promptly obtained fast development and widespread use since coming out.
Since 95 years, the technology of domestic existing multinomial polymer cement waterproof paint is come out.The JS coating that at present domestic each factory produces, the polymkeric substance of use has: acrylic ester emulsion, VAE (ethylene-vinyl acetate copolymer), VAE and acrylate blend emulsion etc., the cement of use has: high-alumina cement, aluminosulfate cement, silicate cement.Because the main ingredient that adopts and prescription, production method, construction proportioning are different, the performance of product, especially water tolerance, weather resistance have a great difference.Engineering practice and research test shows: the present domestic JS coating snappiness product of generally producing and using (the liquid powder is than 10: 7, polymer cement ratio 〉=1 even above 2, unit elongation 〉=150%), water-fast index scarcely reaches a standard; A lot of products exist following deficiency: 1) poor water resistance, and water-intake rate is big, and long-term immersion back is obviously softening, soaked swelling, strength degradation; 2) weathering resistance is poor, anti-uv-ray is not strong, and some products obviously harden after roofing exposes 1 year, unit elongation descends; 3) polymer loading is big, the cost height, and the polymer cement ratio height, but elasticity is not high.
Summary of the invention
The objective of the invention is to develop the polymer cement waterproof paint of a kind of low polymer cement ratio, snappiness, high water-fast, Gao Naihou.
The type of polymer of preparation polymer cement waterproof paint is a lot, and commonly used have acrylate copolymer, VAE, polychloroprene latex, styrene-butadiene latex, water-base epoxy and a rubber asphalt etc.Because of existing in acrylate copolymer good springiness, its structure-COOR group, by cross-linking modified, can make original linear structure in film process, form solid netted pilotaxitic texture, molecular bond energy is strong, the macromolecular structure that forms is difficult for degraded, and the uvioresistant of filming like this, resistant to elevated temperatures ability are just strong, has also lowered water molecules simultaneously and has entered and cause the swollen degree of filming between macromolecular chain, from improving the angle of film performance, the acrylate copolymer of selecting cross-linking type for use is for well.
The polymer Cement Composite Material system can be divided into two classes: a kind of is the polymkeric substance of non-response type, as polychloroprene latex, isobutylene-isoprene latex, acetate copolymer emulsion etc., in composite structure, polymer film forming is covered in cement cementitious surface or cement-hydrate is filled between the polymer network, and organism and inorganics only are inertia ground, mechanically fill mutually; Another kind of then be the polymkeric substance of response type, two kinds of reaction formations are arranged: the one, the cross-linking and curing reaction of (or and stiffening agent) between the polymkeric substance, thus form macromole; Another kind is between polymer active group and the hydrated cementitious product chemical reaction to have taken place, and forms the interface structure with the chemical bond combination, strengthens the raising that causes material property by the interface.Studies show that: chemical reaction can take place with the Ca (OH) 2 that hydrated cementitious generates in the modified acroleic acid copolymer emulsion, generation is with ionic linkage bonded macromolecular network pilotaxitic texture, and along with the prolongation of hydration age, extent of hydration is high more, and the amount of this resultant of reaction is just big more.
Generally, cement has good water tolerance and weathering resistance with respect to polymkeric substance.So, reduce polymer loading, improve cement consumption, that is to say the reduction polymer cement ratio, can improve water tolerance and weathering resistance that polymer cement waterproof is filmed to a certain extent.But problem is, reduce the decline significantly that polymer cement ratio will cause tension set, and actual engine request polymer cement paint must possess good elastoplasticity, unit elongation, to adapt to the distortion that building structure causes because of sedimentation, displacement, drying shrinkage, expand with heat and contract with cold etc.
At present in the polymer cement class coating products, (elongation at break 〉=200%) JS proportioning of high-elastic type is the liquid material: powder=10: 7, the mass ratio of polymkeric substance and cement (being polymer cement ratio) is generally at least greater than 1, even surpass 2, high like this polymer loading, cost height not only, and cause some performance deficiencies, poor as water tolerance, ageing resistance.
The used acrylate copolymer of the present invention itself is a kind of good elasticoplastic body, but under the low polymer cement ratio situation, the proper property by self does not reach very high unit elongation yet, sees Table the 1st, 2 groups of data of 1 test-results.The elongation at break index of polymer cement waterproof paint JC/T894-2001 (hereinafter to be referred as GB) I type is 〉=200%, and uses the 1st group of polymkeric substance (non-modified processing) merely, and elongation at break has only 113%.For this reason, the present invention is carrying out outside the cross-linking modified processing polymkeric substance, in formulating of recipe, also add softening agent--alkylphenol epoxidation hydrocarbon polymer, it can slacken valency power intermolecular time, increase molecular chain movement, reduce high molecular crystallinity, thereby increase considerably the unit elongation of material, reduce its hardness.
Table 1 low polymer cement ratio test-results
Annotate: it is 23+2 ℃ that mark is supported condition, relative humidity 45-70%
| Numbering | The liquid material is formed | Liquid material: powder: water | Mark is supported 7d | Mark is supported 7d+50 ℃ of 24h | ||
| Tensile strength MPa | Elongation at break % | Tensile strength MPa | Elongation at break % | |||
| ??1 | Unmodified polymer | 10∶15∶1.2 | ????1.88 | ????120 | ????2.25 | ????113 |
| ??2 | Polymer-modified P | 10∶15∶1.2 | ????2.30 | ????258 | ????4.26 | ????153 |
| ??3 | P+ softening agent 3# | 10∶15∶1.2 | ????1.93 | ????281 | ????3.89 | ????190 |
| ??4 | P+ softening agent 5# | 10∶15∶1.2 | ????1.75 | ????387 | ????2.97 | ????271 |
| ??5 | P+ softening agent 2#+5# | 10∶15∶1.2 | ????1.61 | ????455 | ????2.07 | ????325 |
By table as seen, because the adding of softening agent, even very low liquid powder is than under (10: 15), the polymer cement ratio (0.35-0.7), film and still have very high elasticity, compound use softening agent 2#+5# best results, 7 days elongation at breaks of the 4th group of room temperature maintenance surpass 400%, support 7 days+50 ℃ oven dry 24h by the test method mark of GB and have then reached 325%.
From the polymer liquid material: powder=be easy to calculate at 10: 15: the liquid powder than 0.67, poly-powder than 0.33, polymer cement ratio 0.35-0.7, polymkeric substance accounts for 20% of system total amount, accounts for 80% based on the inorganics of cement.Low polymer cement ratio means low polymer loading, high cement consumption, and like this, a large amount of cement-based materials is the invasion of shielding ultraviolet rays irradiation and moisture effectively just, thereby increases substantially the weathering resistance and the water tolerance of filming.
Coating of the present invention is made up of liquid material and powder, and its construction proportioning is the liquid material: powder: water=10: 15: the 0-2 wherein weight percent of liquid material is:
Methyl methacrylate 1-10
Vinylbenzene 1-10
Butyl acrylate 1-30
Vinylformic acid 0.1-1
Ammonium persulphate 0.1-1
Sodium bicarbonate 0.1-1
Nonionic emulsifying agent 0.375
Softening agent 0.25
Deionized water 22.55
Organic-silicon-modified resin 0.5
Acrylate copolymer 50
Wherein linking agent is the RY-3 linking agent that Beijing Nuo Gen company produces, and nonionic emulsifying agent is produced for the auxiliary reagent factory, Tianjin
OP-10 emulsifying agent, softening agent are the NK-2000 softening agent that Beijing Nuo Gen company produces, and organic-silicon-modified resin is north
The AHX-308 organic silicon emulsion that capital Australia Chinesizing worker company produces, acrylate copolymer is produced for U.S.'s union carbide corporation
CM-201 type product.Powder formulation
Silicate cement 70
Powder defoamer 0.5
Dispersion agent 0.5
Water-resisting agent 1
Quartz sand 28
Wherein silicate cement is cement mill, a China Resources 52.5# cement, and the P803 product that defoamer is produced for Beijing Australia Chinesizing worker company, the FE dispersion agent that dispersion agent is produced for coke-oven plant, Beijing, water-resisting agent are that the HZ-7 water-resisting agent that bold and unconstrained group produces is converged in Beijing.The performance index that make coating of the present invention by aforementioned preparation technology see the following form:
| Sequence number | Test subject | JCT894-2001 indexs | Test result | The individual event conclusion | |
| 1 | Solids content, % | ≥65 | ?80 | Meet | |
| 2 | Time of drying | Surface drying time, h | ≤4 | ?3 | Meet |
| Do solid work the time, h | ≤8 | ?7 | Meet | ||
| 3 | Tensile strength | Non-processor, MPa | ≥1.2 | ?2.96 | Meet |
| Conservation rate after the heat treated, % | ≥80 | ?110 | |||
| Conservation rate after the alkaline purification, % | ≥80 | ?112 | |||
| Conservation rate behind the UV treatment 250h, % | ≥80 | ?94 | |||
| Conservation rate behind the UV treatment 500h, % | / | ?90 | |||
| 4 | Elongation at break | Non-processor, % | ≥200 | ?301 | Meet |
| Heat treated, % | ≥150 | ?292 | |||
| Alkaline purification, % | ≥150 | ?285 | |||
| UV treatment 250h, % | ≥150 | 289 (retention rates 96%) | |||
| UV treatment 500h, % | / | 319 (retention rates 106%) | |||
| 5 | Low temperature flexibility, φ 10mm rod | -10 ℃ of flawlesses | Flawless | Meet | |
| 6 | Watertightness, 0.3MPa, 30min | Waterproof | 0.5MPa 30min is waterproof | Meet | |
| 7 | Moist basal plane cohesive strength, MPa | ≥0.5 | ?1.5 | Meet | |
| 8 | Water-intake rate % | / | ?24h??1.95 ?7d???4.47 | Excellent | |
Linking agent 0.1-0.5
Anionic emulsifier 0.1-0.5
Nonionic emulsifying agent 0.3-1
Softening agent 0.1-1
Deionized water 20-30
Organic-silicon-modified resin 0.1-1
Acrylate copolymer 20-70
Wherein said linking agent is to contain the long carbochain alkane of the active group of epoxy and the complex body of divalent-metal ion acetate, the moon from
Sub-emulsifying agent is a sodium lauryl sulphate, and nonionic emulsifying agent is the polyoxyethylene alkyl aryl ether, and softening agent is the alkylphenol ring
Oxidation of hydrocarbons, organic-silicon-modified resin are polyalkylene oxide-silicone block copolymer
The weight percent of powder is:
Silicate cement 50-80
Powder defoamer 0.05-1
Dispersion agent 0.05-1
Water-resisting agent 0.5-2
Quartz sand 20-48
Wherein cement is the above label of 42.5#, can use white cement or colored cement, thereby formation coloured coating, defoamer is the mixture of liquid hydrocarbon and polyoxyethylene glycol and amorphism silicon-dioxide, dispersion agent is a naphthalenesulfonate formaldehyde condensation compound, water-resisting agent is the fatty acid series water-resisting agent, and the granularity of quartz sand is 0.1-0.3mm.
Being prepared as of liquid material:
In the deionized water and anionic emulsifier and nonionic emulsifying agent input reactor with 60% amount, start agitator, be warming up to 60 ℃, mix monomer (the methyl methacrylate of adding 20%, vinylbenzene, butyl acrylate, acrylic acid mixture), 30% ammonium persulphate and sodium bicarbonate aqueous solution, be warmed up to 75 ℃, after emulsion becomes little orchid, drip the ammonium persulfate aqueous solution of remaining 80% mix monomer and 70% simultaneously, keep temperature of reaction 75-80 ℃, titration was finished in 2 hours, in 30 minutes, temperature of reaction is risen to 90-95 ℃ again, kept temperature 30 minutes, reduce to room temperature.Be neutralized to PH=7-8 with ammoniacal liquor, add linking agent, softener solution, organic-silicon-modified resin, acrylate copolymer, after filtering.
Being prepared as of powder:
Earlier with quartz sand, powder defoamer, dispersion agent, water-resisting agent mixing, with ball mill with the material of mixing levigate to 200 mesh sieves tail over≤5%, again with cement mixing in mixing machine, cross the 0.3mm sieve and promptly get powder.
Being prepared as of coating: with liquid material, powder and water by weight 10: 15: it is even that the 0-2 elder brother closes stirring (300 rev/mins of rotating speeds, about 5 minutes).
Embodiment liquid material formula
Methyl methacrylate 5
Vinylbenzene 5
Butyl acrylate 15
Vinylformic acid 0.5
Ammonium persulphate 0.1
Sodium bicarbonate 0.1
Linking agent 0.5
Anionic emulsifier 0.125
It is few that the present invention has a polymer volume, the polymer cement ratio consumption is low, elasticity is large, water absorption rate is low, and is high water-fast, soaked not swelling, immersion after-drawing intensity and fracture strength conservation rate are high, anti-aging, good weatherability, but after using cohesive force strong, without seam, good integrity, permeable watertight, advantages such as hollowing, freeze thawing resistance, high temperature resistant, corrosion-resistant, cold construction wet trade, easy construction, nontoxic, environmental protection not.
Claims (2)
1. low polymer cement ratio, high performance polymer modified cement waterproofing coating, it is characterized in that: described coating is made up of liquid material and powder, its liquid powder ratio is 10: 15, wherein the weight percent of liquid material is: methyl methacrylate 1-10, vinylbenzene 1-10, butyl acrylate 1-20, vinylformic acid 0.1-1, ammonium persulphate 0.1-1, sodium bicarbonate 0.1-1, linking agent 0.1-0.5, anionic emulsifier 0.1-0.5, nonionic emulsifying agent 0.3-1, softening agent 0.1-1, deionized water 20-30, organic-silicon-modified resin 0.1-1, acrylate copolymer 20-70, wherein said linking agent is to contain the long carbochain alkane of the active group of epoxy and the complex body of divalent-metal ion acetate, and anionic emulsifier is a sodium lauryl sulphate, and nonionic emulsifying agent is the polyoxyethylene alkyl aryl ether, softening agent is an alkylphenol epoxidation hydrocarbon polymer, and organic-silicon-modified resin is polyalkylene oxide-silicone block copolymer; The weight percent of described powder is: silicate cement 50-80, powder defoamer 0.05-1, dispersion agent 0.05-1, water-resisting agent 0.5-2, quartz sand 20-48, wherein said cement are the above label of 42.5#, defoamer is the mixture of liquid hydrocarbon and polyoxyethylene glycol and amorphism silicon-dioxide, dispersion agent is a naphthalenesulfonate formaldehyde condensation compound, and water-resisting agent is the fatty acid series water-resisting agent, and the granularity of quartz sand is 0.1-0.3mm.
2. production technique of making the described waterproof paint of claim 1, it is characterized in that: with described liquid material, powder and water were by weight 10: 15, and: 0-2 mixes down for 300 rev/mins at rotating speed and stirred 5 minutes, being prepared as of wherein said liquid material: in the deionized water and anionic emulsifier and nonionic emulsifying agent input reactor with 60% amount, start agitator, be warming up to 60 ℃, the mix monomer of adding 20%, 30% ammonium persulphate and sodium bicarbonate aqueous solution, be warmed up to 75 ℃, after emulsion becomes little orchid, drip the ammonium persulfate aqueous solution of remaining 80% mix monomer and 70% simultaneously, keep temperature of reaction 75-80 ℃, titration was finished in 2 hours, in 30 minutes, temperature of reaction is risen to 90-95 ℃ again, kept temperature 30 minutes, and reduced to room temperature, be neutralized to PH=7-8 with ammoniacal liquor, add linking agent, softener solution, organic-silicon-modified resin, acrylate copolymer, after filtering; Being prepared as of described powder: earlier with quartz sand, powder defoamer, dispersion agent, water-resisting agent mixing, with ball mill with the material of mixing levigate to 200 mesh sieves tail over≤5%, with cement mixing in mixing machine, the 0.3mm that sieves promptly gets powder again.
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| CNB021178534A CN1150285C (en) | 2002-05-23 | 2002-05-23 | Water-proof polymer-cement paint with low polymer/cement ratio and high performance and its preparing process |
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| CNB021178534A CN1150285C (en) | 2002-05-23 | 2002-05-23 | Water-proof polymer-cement paint with low polymer/cement ratio and high performance and its preparing process |
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| CN1326954C (en) * | 2003-05-08 | 2007-07-18 | 同济大学 | Polymer cement based composite waterproof coating material for construction and its preparation |
| CN101108945B (en) * | 2007-07-19 | 2010-06-09 | 北京东方雨虹防水技术股份有限公司 | Flame-proof type polyalcohol cement basis composite water-proof paint |
| CN102181224A (en) * | 2011-01-31 | 2011-09-14 | 北京东方雨虹防水技术股份有限公司 | Reactive polymer cement waterproof coating |
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| CN1293161C (en) * | 2005-01-27 | 2007-01-03 | 柯奇君 | Adhesive for textile industry and method for preparing same |
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| CN101108945B (en) * | 2007-07-19 | 2010-06-09 | 北京东方雨虹防水技术股份有限公司 | Flame-proof type polyalcohol cement basis composite water-proof paint |
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| CN102444286A (en) * | 2011-10-24 | 2012-05-09 | 新疆北新路桥建设股份有限公司 | Polymer cement adhesive construction method |
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| CN103539410B (en) * | 2013-11-11 | 2015-02-25 | 苏州市姑苏新型建材有限公司 | Novel polymer cement waterproof coating formula |
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| CN104496541B (en) * | 2014-12-29 | 2016-06-01 | 黄河水利职业技术学院 | The preparation method of a kind of waterproof paint for cement |
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| CN108690434A (en) * | 2017-02-24 | 2018-10-23 | 天长市安德丽节能建材有限公司 | A kind of water-proofing anticracking coating |
| CN110669457A (en) * | 2019-10-21 | 2020-01-10 | 李小忠 | Long-acting building waterproof adhesive |
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