CN103525285A - Scumbling type polyurethane waterproof paint and usage method thereof - Google Patents
Scumbling type polyurethane waterproof paint and usage method thereof Download PDFInfo
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- CN103525285A CN103525285A CN201310452577.1A CN201310452577A CN103525285A CN 103525285 A CN103525285 A CN 103525285A CN 201310452577 A CN201310452577 A CN 201310452577A CN 103525285 A CN103525285 A CN 103525285A
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- polyurethane water
- proof
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- lacquer
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 158
- 239000004814 polyurethane Substances 0.000 title claims abstract description 158
- 239000003973 paint Substances 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229920000570 polyether Polymers 0.000 claims abstract description 36
- 239000002904 solvent Substances 0.000 claims abstract description 25
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 18
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 15
- 239000012948 isocyanate Substances 0.000 claims abstract description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 53
- 239000004922 lacquer Substances 0.000 claims description 47
- 239000012634 fragment Substances 0.000 claims description 21
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 16
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 16
- 238000004581 coalescence Methods 0.000 claims description 15
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 14
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000013530 defoamer Substances 0.000 claims description 12
- 238000007761 roller coating Methods 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 10
- 238000013019 agitation Methods 0.000 claims description 9
- 230000001680 brushing effect Effects 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 8
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 8
- 230000002209 hydrophobic effect Effects 0.000 claims description 8
- 239000000049 pigment Substances 0.000 claims description 8
- 229920000058 polyacrylate Polymers 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 7
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 6
- -1 aromatic isocyanate Chemical class 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 6
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 125000003700 epoxy group Chemical group 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 230000037452 priming Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229920002121 Hydroxyl-terminated polybutadiene Polymers 0.000 claims description 2
- 150000002009 diols Chemical class 0.000 claims description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 2
- 150000002513 isocyanates Chemical class 0.000 abstract 2
- 229920005862 polyol Polymers 0.000 abstract 2
- 150000003077 polyols Chemical class 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 31
- 229920002396 Polyurea Polymers 0.000 description 11
- 239000010408 film Substances 0.000 description 11
- 238000011056 performance test Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The invention provides a scumbling type polyurethane waterproof paint and a usage method thereof. The polyurethane waterproof paint comprises a seal primer, a polyurethane waterproof bottom surface paint and a polyurethane waterproof surface paint, wherein polyurethane waterproof bottom surface paint comprises an A1 component and a B1 component; the A1 component comprises 40-60 parts of polyether polyol, 13-28 parts of titanium dioxide, 13.9-19.9 parts of a filler, 2.1 parts of a coalescing agent and 10 parts of a solvent by weight; the B1 component comprises 40-60 parts of isocyanate and 0-20 parts of a solvent by weight; the polyurethane waterproof surface paint comprises an A2 component and a B2 component; the A2 component comprises 40-60 parts of polyether polyol, 22-37 parts of titanium dioxide, 6.5-12.5 parts of a filler, 2.5 parts of a coalescing agent and 8 parts of a solvent by weight; and the B2 component comprises 40-60 parts of isocyanate and 0-20 part of a solvent by weight.
Description
Technical field
The present invention relates to water-resistant paint, be specifically related to a kind of scumbling type polyurethane water-resistant paint and using method thereof.
Background technology
Railway Concrete Bridge bridge surface waterproof layer is the important technical that improves bridge structure weather resistance.China railways concrete-bridge bridge surface waterproof layer standard TB/T2965-2011 " railway concrete bridge floor waterproof layer technical qualification " has stipulated three kinds of waterproof layer patterns, is respectively: coiled material adds affixing coating (or tackiness agent) type, high-polymer modified pitch coiled material type and without the coating type of coiled material.First two waterproof layer is in protective wall on bridge, and the third waterproof layer is for beyond protective wall.These three kinds of waterproof layers all can not exposedly be used, and need to cover in the above the admixture vinylformic acid nitrile fiber of 40-60mm or the C40 pea gravel concreten protective layer of polypropylene fiber net.
At present, high ferro non-fragment orbit concrete bridge deck is used polyurea water-proof material conventionally, although this water-proof material can exposedly be used, but and the tack between bridge floor is poor, be prone to variable color, be full of cracks and big area and the disease such as peel off, thereby both do not had due waterproof action, be unfavorable for again traffic safety.In addition, while adopting polyurea water-proof material as waterproof layer, conventionally need to adopt specific spraying equipment to construct, be not easy to use; And for reaching the effect of waterproof, concrete bridge deck need to spray thicker polyurea water-proof layer (thickness is conventionally more than 2mm) conventionally, and the amount of the polyurea water-proof material needing is more, is unfavorable for economizing in raw materials and reducing costs.
Summary of the invention
For the problems referred to above, one object of the present invention is to provide a kind of polyurethane water-proof paint, and this polyurethane water-proof paint has preferably tack, can be issued to preferably waterproof effect in the thinner situation of concrete bridge deck coating thickness, and easy to use.
Another object of the present invention is to provide a kind of using method of polyurethane water-proof paint.
For achieving the above object, the invention provides a kind of polyurethane water-proof paint, it comprises seal coat, polyurethane water-proof bottom surface paint and polyurethane water-proof surface lacquer from bottom to top, described polyurethane water-proof bottom surface enamel-cover is containing A1 component and B1 component, and described A1 component comprises: 40-60 weight part polyether glycol, 13-28 weight part titanium dioxide, 13.9-19.9 weight part filler, 2.1 weight part film coalescence aid and 10 parts by weight solvent; Described B1 component comprises: 40-60 weight part isocyanic ester and 0-20 parts by weight solvent,
Described polyurethane water-proof surface lacquer comprises A2 component and B2 component, and described A2 component comprises: 40-60 weight part polyether glycol, 22-37 weight part titanium dioxide, 6.5-12.5 weight part filler, 2.5 weight part film coalescence aid and 8 parts by weight solvent; Described B2 component comprises: 40-60 weight part isocyanic ester and 0-20 parts by weight solvent.
Further, described polyether glycol is one or more in hydroxy-terminated polybutadienes, polytetrahydrofuran diol, polyethers 2000, polyethers 330N or polyethers 4000;
Preferably, the titanium dioxide in the paint of described polyurethane water-proof bottom surface is Anatase Titanium Dioxide; Titanium dioxide in described polyurethane water-proof surface lacquer is Rutile type Titanium Dioxide;
Preferably, the isocyanic ester in the paint of described polyurethane water-proof bottom surface is aromatic isocyanate, preferably diphenylmethanediisocyanate (MDI) semi-prepolymer; Isocyanic ester in described polyurethane water-proof surface lacquer is aliphatic isocyanates, preferably hexamethylene diisocyanate (HDI) semi-prepolymer;
Preferably, described filler comprises talcum powder, barium sulfate, middle pigment and wilkinite;
Preferably, the film coalescence aid in the paint of described polyurethane water-proof bottom surface comprises promotor, defoamer and flow agent; Film coalescence aid in described polyurethane water-proof surface lacquer comprises promotor, defoamer, flow agent and photostabilizer;
Preferably, described promotor is acrylic resin modified;
Preferably, described defoamer is hydrophobic silicone;
Preferably, described flow agent is acrylic polymer or modified polyorganosiloxane;
Described photostabilizer is hindered phenol antioxygen;
Preferably, described solvent comprises one or more in dimethylbenzene, N-BUTYL ACETATE and ethylene glycol ether acetate;
Preferably, described seal coat is epoxies or polyurethanes seal coat.
Further, described A1 component and A2 component all adopt following methods preparation:
Polyether glycol is placed in to container, under 1000-1400 rev/min of agitation condition, add successively solid state component, then after disperseing 15min under 1000-1400 rev/min of agitation condition, add liquid parts, after disperseing 10min subsequently under 1000-1400 rev/min of agitation condition, grind, filter, obtain A1 component or A2 component;
Preferably, described B1 component and B2 component all adopt following methods preparation:
Each one-tenth in B1 component or B2 component is placed in container, under the condition of 700-800 rev/min, stirs after 15-30min, filter, obtain B1 component or B2 component.
Further, described polyurethane water-proof paint, for the waterproof layer material of Railway Concrete Bridge bridge floor, is preferred for the waterproof layer material of high ferro non-fragment orbit concrete bridge deck.
It further, while adopting polyurethane water-proof paint of the present invention for the waterproof layer material of Railway Concrete Bridge bridge floor, the thickness of seal coat is not limited, as long as can cover basal plane completely; Preferably, the thickness of described polyurethane water-proof bottom surface paint is 100-500 μ m; The thickness of described polyurethane water-proof surface lacquer is 100-300 μ m.
The using method that the present invention further provides above-mentioned polyurethane water-proof paint, comprises the following steps:
Step a: apply seal coat at basal plane;
Step b: after priming paint to be closed is dry, paint in seal coat surface-coated polyurethane water-proof bottom surface;
Step c: after polyurethane water-proof bottom surface paint is dry, at polyurethane water-proof bottom surface paint surface-coated polyurethane water-proof surface lacquer.
Further, described polyurethane water-proof paint is used for the waterproof layer material of Railway Concrete Bridge bridge floor, and adopts following methods construction:
Step a: basal plane removing surface is clean, and spraying after surface drying, brushing or roller coating seal coat, make seal coat soak basal plane;
Step b: priming paint to be closed is done solid work or applied after seal coat 24h, at seal coat surface spraying, brushing or roller coating polyurethane water-proof bottom surface paint;
Step c: apply after the paint 24h of polyurethane water-proof bottom surface, at polyurethane water-proof bottom surface paint surface spraying, brushing or roller coating polyurethane water-proof surface lacquer.
Further, described step c comprises: apply after the paint 24h of polyurethane water-proof bottom surface, check in the lacquering of polyurethane water-proof bottom surface and whether have bubble, while having bubble in the lacquering of polyurethane water-proof bottom surface, bubble is punctured or removed, and adopt polyurethane water-proof surface lacquer to repair, then spraying on the lacquering of whole polyurethane water-proof bottom surface, brushing or roller coating polyurethane water-proof surface lacquer.
Further, described method further comprises steps d: apply after polyurethane water-proof surface lacquer 24h, check in polyurethane water-proof surface lacquer coating whether have bubble, while having bubble in polyurethane water-proof surface lacquer coating, bubble is punctured or removed, and repair with polyurethane water-proof surface lacquer.
Compared with prior art, polyurethane water-proof paint of the present invention at least has the following advantages:
One, the present invention adopts the polyether glycol of suitable proportioning, titanium dioxide, filler, film coalescence aid, solvent and isocyanic ester etc. are prepared polyurethane water-proof bottom surface paint and polyurethane water-proof surface lacquer, and further adopt seal coat, polyurethane water-proof bottom surface paint and surface lacquer are made polyurethane water-proof paint, environmental compatibility and the ageing-resistant performance of water-resistant paint have been improved, and polyurethane water-proof paint prepared by the present invention has good physical and mechanical property and tack, long-time use there will not be variable color, be full of cracks and big area such as peel off at the disease, when playing waterproof action, more be conducive to traffic safety,
Two, polyurethane water-proof paint of the present invention can be coated on concrete bridge deck by the mode of spraying, brushing or roller coating, can adopt plurality of devices to construct, and is convenient to staff and selects suitable preparation of construction according to practical situation, is more convenient for using;
Three, polyurethane water-proof paint of the present invention can directly be used out of doors, and can be in the situation that total thickness be no more than 800 μ m, reach preferably waterproof effect, and existing polyurea water-proof layer can not directly be exposed in atmosphere, need protect with the weathering resistance polyurethane coating of employing suitable thickness, and the coating thickness of polyurea water-proof layer is more than 2mm; Compare with polyurea water-proof layer, polyurethane water-proof paint of the present invention is more conducive to economize in raw materials, and reduces production costs.
Accompanying drawing explanation
Below, describe by reference to the accompanying drawings embodiment of the present invention in detail, wherein:
Fig. 1 is the scumbling type polyurethane water-resistant paint of the embodiment of the present invention 1 schematic diagram after concrete bridge deck applies.
The actual sticking power test picture of the waterproof layer of the high ferro non-fragment orbit concrete bridge deck that the scumbling type polyurethane water-resistant paint that Fig. 2 is the employing embodiment of the present invention 1 builds up;
The actual sticking power test picture of the waterproof layer of the high ferro non-fragment orbit concrete bridge deck that the scumbling type polyurethane water-resistant paint that Fig. 3 is the employing embodiment of the present invention 2 builds up;
The high ferro non-fragment orbit concrete bridge deck that the scumbling type polyurethane water-resistant paint that Fig. 4 is the employing embodiment of the present invention 1 builds up is used the picture after 18 months in reality;
Fig. 5 adopts the high ferro non-fragment orbit concrete bridge deck that existing polyurea water-proof layer builds up after reality is used 3-4 month, to occur the picture of variable color;
The high ferro non-fragment orbit concrete bridge deck picture that appearance is chapped after reality is used 6 months that Fig. 6 builds up for adopting existing polyurea water-proof layer;
Fig. 7 adopts the high ferro non-fragment orbit concrete bridge deck that existing polyurea water-proof layer builds up after reality is used 3-4 month, to occur the picture peeling off.
Embodiment
Referring to specific embodiment, the present invention is described.It will be appreciated by those skilled in the art that these embodiment are only for the present invention is described, the scope that it does not limit the present invention in any way.
Scumbling type polyurethane water-resistant paint of the present invention is particularly suited for the fish tail and waterproof layer as Railway Concrete Bridge bridge floor (more preferably high ferro non-fragment orbit concrete bridge deck); the waterproof layer of high ferro non-fragment orbit concrete bridge deck of take is below example, and the concrete application of scumbling type polyurethane water-resistant paint of the present invention is described.
embodiment 1scumbling type polyurethane water-resistant paint is as the waterproof layer of high ferro non-fragment orbit concrete bridge deck
1, the component proportion of scumbling type polyurethane water-resistant paint:
Seal coat: epoxies seal coat (production of Langfang threeway chemical industry company limited).
Scumbling type polyurethane waterproof bottom surface paint (PPU-M1): comprise A1 component and B1 component, wherein:
In A1 component, comprise: 60g polyether glycol (comprising 45.7g polyethers 4000 and 14.3g polyethers 330N), 13g Anatase Titanium Dioxide, 14.9g filler (comprising pigment and 0.5g wilkinite in 5.0g talcum powder, 9.35g barium sulfate, 0.05g), 2.1g film coalescence aid (comprising 1.3g acrylic resin modified (promotor), 0.1g hydrophobic silicone (defoamer) and 0.7g acrylic polymer (MCK-3058, flow agent)) and 10g solvent (ethylene glycol ether acetate);
In B1 component, comprise: 60g MDI semi-prepolymer and 20g solvent (ethylene glycol ether acetate).
Scumbling type polyurethane waterproof watch finish paint (PPU-M2):
In A2 component, comprise: 60g polyether glycol (comprising 41.2g polyethers 4000 and 18.8g polyethers 2000), 22g Rutile type Titanium Dioxide, 7.5g filler (comprising pigment and 0.5g wilkinite in 3.0g talcum powder, 3.65g barium sulfate, 0.35g), 2.5g film coalescence aid (comprising 1.3g acrylic resin modified (promotor), 0.1g hydrophobic silicone (defoamer), 0.7g acrylic polymer (MCK-3058, flow agent) and 0.4g hindered phenol antioxygen (photostabilizer)) and 8g solvent (comprising 5.0g dimethylbenzene and 3.0g N-BUTYL ACETATE);
In B2 component, comprise: 60g HDI semi-prepolymer and 20g solvent (comprising 12.0g dimethylbenzene and 8.0g N-BUTYL ACETATE).
2, the preparation of each component in scumbling type polyurethane water-resistant paint
In the paint of scumbling type polyurethane waterproof bottom surface, the preparation method of A1 component and B1 component is as follows:
The preparation of A1 component: polyether glycol is placed in to dispersion tank, under 1000-1400 rev/min of agitation condition, add successively solid state component, then after disperseing 15min under 1000-1400 rev/min of agitation condition, add liquid parts, after disperseing 10min subsequently under 1000-1400 rev/min of agitation condition, adopt sand mill to grind, filter, obtain A1 component.
The preparation of B1 component: each one-tenth in B1 component is placed in and is converted in batch can, stir after 15-30min under the condition of 700-800 rev/min, filter, obtain B1 component.
In scumbling type polyurethane waterproof watch finish paint, the preparation method of A2 component and B2 component is identical with the preparation method of A1 component in the paint of scumbling type polyurethane waterproof bottom surface and B1 component respectively.
3, scumbling type polyurethane waterproof bottom surface paint and surface lacquer performance test
The polyurethane water-proof bottom surface paint of above-mentioned preparation and the performance of surface lacquer are tested, and result is as shown in table 1:
Table 1: polyurethane water-proof bottom surface paint and surface lacquer the performance test results
4, the construction of scumbling type polyurethane water-resistant paint
Step 1: the floating dust on basal plane surface, dirt etc. are cleaned out, and roller coating seal coat after surface drying, makes seal coat soak basal plane;
Step 2: apply after seal coat 24h roller coating polyurethane water-proof bottom surface paint;
Step 3: apply after the paint 24h of polyurethane water-proof bottom surface, range estimation polyurethane water-proof bottom surface lacquering, inspection has or not bubble, while having bubble, with cut-off knife, bubble is punctured or removed, and with polyurethane water-proof surface lacquer, repair roller coating polyurethane water-proof surface lacquer on the lacquering of whole polyurethane water-proof bottom surface then;
Step 4: apply after polyurethane water-proof surface lacquer 24h, range estimation polyurethane water-proof surface lacquer coating, checks and have or not bubble, while having bubble, with cut-off knife, bubble is punctured or is removed, and repair with polyurethane water-proof surface lacquer.
In the present embodiment, the thickness of seal coat is for just covering basal plane completely, and the thickness of polyurethane water-proof bottom surface lacquering is 400 μ m, and the thickness of polyurethane water-proof surface lacquer coating is 200 μ m, and concrete coating structure as shown in Figure 1.
embodiment 2scumbling type polyurethane water-resistant paint is as the waterproof layer of high ferro non-fragment orbit concrete bridge deck
1, the component proportion of scumbling type polyurethane water-resistant paint:
Seal coat: polyurethanes seal coat (production of Langfang threeway chemical industry company limited).
Scumbling type polyurethane waterproof bottom surface paint (PPU-M1): comprise A1 component and B1 component, wherein:
In A1 component, comprise: 40g polyether glycol (comprising 30.5g polyethers 4000 and 9.5g polyethers 330N), 28g Anatase Titanium Dioxide, 19.9g filler (comprising pigment and 0.5g wilkinite in 5.0g talcum powder, 14.35g barium sulfate, 0.05g), 2.1g film coalescence aid (comprising 1.3g acrylic resin modified (promotor), 0.1g hydrophobic silicone (defoamer) and 0.7g acrylic polymer (MCK-3058, flow agent)) and 10g solvent (ethylene glycol ether acetate);
In B1 component, comprise: 40g MDI semi-prepolymer.
Scumbling type polyurethane waterproof watch finish paint (PPU-M2):
In A2 component, comprise: 40g polyether glycol (comprising 27.5g polyethers 4000 and 12.5g polyethers 2000), 37g Rutile type Titanium Dioxide, 12.5g filler (comprising pigment and 0.5g wilkinite in 3.0g talcum powder, 8.65g barium sulfate, 0.35g), 2.5g film coalescence aid (comprising 1.3g acrylic resin modified (promotor), 0.1g hydrophobic silicone (defoamer), 0.7g acrylic polymer (MCK-3058, flow agent) and 0.4g hindered phenol antioxygen (photostabilizer)) and 8g solvent (comprising 5.0g dimethylbenzene and 3.0g N-BUTYL ACETATE);
In B2 component, comprise: 40g HDI semi-prepolymer.
2, the preparation of each component in scumbling type polyurethane water-resistant paint
With embodiment 1.
3, scumbling type polyurethane waterproof bottom surface paint and surface lacquer performance test
The polyurethane water-proof bottom surface paint of above-mentioned preparation and the performance of surface lacquer are tested, and result is as shown in table 2:
Table 2: polyurethane water-proof bottom surface paint and surface lacquer the performance test results
4, the construction of scumbling type polyurethane water-resistant paint
With embodiment 1.
In the present embodiment, the thickness of seal coat is for just covering basal plane completely, and the thickness of polyurethane water-proof bottom surface lacquering is 500 μ m, and the thickness of polyurethane water-proof surface lacquer coating is 100 μ m.
embodiment 3scumbling type polyurethane water-resistant paint is as the waterproof layer of high ferro non-fragment orbit concrete bridge deck
1, the component proportion of scumbling type polyurethane water-resistant paint:
Seal coat: epoxies seal coat (production of Langfang threeway chemical industry company limited).
Scumbling type polyurethane waterproof bottom surface paint (PPU-M1): comprise A1 component and B1 component, wherein:
In A1 component, comprise: 50g polyether glycol (comprising 38g/kg polyethers 4000 and 12g/kg polyethers 330N), 24g Anatase Titanium Dioxide, 13.9g filler (comprising pigment and 0.5g wilkinite in 5.0g talcum powder, 8.35g barium sulfate, 0.05g), 2.1g film coalescence aid (comprising 1.3g acrylic resin modified (promotor), 0.1g hydrophobic silicone (defoamer) and 0.7g acrylic polymer (MCK-3058, flow agent)) and 10g solvent (ethylene glycol ether acetate);
In B1 component, comprise: 50g MDI semi-prepolymer and 10g solvent (ethylene glycol ether acetate).
Scumbling type polyurethane waterproof watch finish paint (PPU-M2):
In A2 component, comprise: 50g polyether glycol (comprising 34.4g polyethers 4000 and 15.6g polyethers 2000), 33g Rutile type Titanium Dioxide, 6.5g filler (comprising pigment and 0.5g wilkinite in 2.0g talcum powder, 3.65g barium sulfate, 0.35g), 2.5g film coalescence aid (comprising 1.3g acrylic resin modified (promotor), 0.1g hydrophobic silicone (defoamer), 0.7g acrylic polymer (MCK-3058, flow agent) and 0.4g hindered phenol antioxygen (photostabilizer)) and 8g solvent (comprising 5.0g dimethylbenzene and 3.0g N-BUTYL ACETATE);
In B component, comprise: 50g HDI semi-prepolymer and 10g solvent (comprising 6.0g dimethylbenzene and 4.0g N-BUTYL ACETATE).
2, the preparation of each component in scumbling type polyurethane water-resistant paint
With embodiment 1.
3, scumbling type polyurethane waterproof bottom surface paint and surface lacquer performance test
The polyurethane water-proof bottom surface paint of above-mentioned preparation and the performance of surface lacquer are tested, and result is as shown in table 3:
Table 3: polyurethane water-proof bottom surface paint and surface lacquer the performance test results
4, the construction of scumbling type polyurethane water-resistant paint
With embodiment 1.
In the present embodiment, the thickness of seal coat is for just covering basal plane completely, and the thickness of polyurethane water-proof bottom surface lacquering is 100 μ m, and the thickness of polyurethane water-proof surface lacquer coating is 300 μ m.
From table, 1-3 finds out, scumbling type polyurethane water-resistant paint prepared by embodiment of the present invention 1-3 has longer working life and higher tensile strength, elongation at break and sticking power, and has excellent watertightness and ageing resistance.
scumbling type polyurethane water-resistant paint is attached as the reality of the waterproof layer of high ferro non-fragment orbit concrete bridge deck
put forth effort test
According to GB/T5210-2006, the waterproof layer of the high ferro non-fragment orbit concrete bridge deck that the scumbling type polyurethane water-resistant paint of the employing embodiment of the present invention 1 and 2 is built up carries out actual sticking power test, and test picture as shown in Figures 2 and 3.Test obtains adopting the sticking power of the waterproof layer of the high ferro non-fragment orbit concrete bridge deck that the scumbling type polyurethane water-resistant paint of the embodiment of the present invention 1 and 2 builds up to be respectively 5.09MPa and 3.52MPa, higher than being used as the index request (>=2.5MPa) of the polyurethane water-proof paint of waterproof layer on existing railway concrete bridge floor, show thus, scumbling type polyurethane water-resistant paint of the present invention has higher cohesive strength with concrete bridge deck in actual use.
scumbling type polyurethane water-resistant paint is resistance to as the reality of the waterproof layer of high ferro non-fragment orbit concrete bridge deck
time test
The high ferro non-fragment orbit concrete bridge deck that the scumbling type polyurethane water-resistant paint that Fig. 4 is the employing embodiment of the present invention 1 builds up is used the picture after 18 months in reality, as seen from Figure 4, the high ferro non-fragment orbit concrete bridge deck that the scumbling type polyurethane water-resistant paint of the employing embodiment of the present invention 1 builds up is substantially unchanged after using 18 months, phenomenons such as not occurring variable color, chap and peel off.And adopt the high ferro non-fragment orbit concrete bridge deck that existing polyurea water-proof layer builds up after using 3-4 month, to occur metachromatism (referring to Fig. 5) respectively, use after 6 months and occur that crack performance (referring to Fig. 6) and use occurred peeling phenomenon (referring to Fig. 7) after 3-4 month, explanation thus, scumbling type polyurethane water-resistant paint of the present invention have in actual use weathering resistance preferably and with the tack of concrete surface.
Specific description of embodiments of the present invention above does not limit the present invention, and those skilled in the art can make according to the present invention various changes or distortion, only otherwise depart from spirit of the present invention, all should belong to the scope of claims of the present invention.
Claims (9)
1. a polyurethane water-proof paint, it comprises seal coat, polyurethane water-proof bottom surface paint and polyurethane water-proof surface lacquer from bottom to top, described polyurethane water-proof bottom surface enamel-cover is containing A1 component and B1 component, and described A1 component comprises: 40-60 weight part polyether glycol, 13-28 weight part titanium dioxide, 13.9-19.9 weight part filler, 2.1 weight part film coalescence aid and 10 parts by weight solvent; Described B1 component comprises: 40-60 weight part isocyanic ester and 0-20 parts by weight solvent,
Described polyurethane water-proof surface lacquer comprises A2 component and B2 component, and described A2 component comprises: 40-60 weight part polyether glycol, 22-37 weight part titanium dioxide, 6.5-12.5 weight part filler, 2.5 weight part film coalescence aid and 8 parts by weight solvent; Described B2 component comprises: 40-60 weight part isocyanic ester and 0-20 parts by weight solvent.
2. polyurethane water-proof paint according to claim 1, is characterized in that, described polyether glycol is one or more in hydroxy-terminated polybutadienes, polytetrahydrofuran diol, polyethers 2000, polyethers 330N or polyethers 4000;
Preferably, the titanium dioxide in the paint of described polyurethane water-proof bottom surface is Anatase Titanium Dioxide; Titanium dioxide in described polyurethane water-proof surface lacquer is Rutile type Titanium Dioxide;
Preferably, the isocyanic ester in the paint of described polyurethane water-proof bottom surface is aromatic isocyanate, preferably diphenylmethanediisocyanate semi-prepolymer; Isocyanic ester in described polyurethane water-proof surface lacquer is aliphatic isocyanates, preferably hexamethylene diisocyanate semi-prepolymer;
Preferably, described filler comprises talcum powder, barium sulfate, middle pigment and wilkinite;
Preferably, the film coalescence aid in the paint of described polyurethane water-proof bottom surface comprises promotor, defoamer and flow agent; Film coalescence aid in described polyurethane water-proof surface lacquer comprises promotor, defoamer, flow agent and photostabilizer;
Preferably, described promotor is acrylic resin modified;
Preferably, described defoamer is hydrophobic silicone;
Preferably, described flow agent is acrylic polymer or modified polyorganosiloxane;
Described photostabilizer is hindered phenol antioxygen;
Preferably, described solvent comprises one or more in dimethylbenzene, N-BUTYL ACETATE and ethylene glycol ether acetate;
Preferably, described seal coat is epoxies or polyurethanes seal coat.
3. polyurethane water-proof paint according to claim 1 and 2, is characterized in that, described A1 component and A2 component all adopt following methods preparation:
Polyether glycol is placed in to container, under 1000-1400 rev/min of agitation condition, add successively solid state component, then after disperseing 15min under 1000-1400 rev/min of agitation condition, add liquid parts, after disperseing 10min subsequently under 1000-1400 rev/min of agitation condition, grind, filter, obtain A1 component or A2 component;
Preferably, described B1 component and B2 component all adopt following methods preparation:
Each one-tenth in B1 component or B2 component is placed in container, under the condition of 700-800 rev/min, stirs after 15-30min, filter, obtain B1 component or B2 component.
4. according to the polyurethane water-proof paint described in any one in claims 1 to 3, it is characterized in that, described polyurethane water-proof paint, for the waterproof layer material of Railway Concrete Bridge bridge floor, is preferred for the waterproof layer material of high ferro non-fragment orbit concrete bridge deck.
5. according to the polyurethane water-proof paint described in any one in claim 1 to 4, it is characterized in that, the thickness of described polyurethane water-proof bottom surface paint is 100-500 μ m; The thickness of described polyurethane water-proof surface lacquer is 100-300 μ m.
6. according to the using method of the polyurethane water-proof paint described in any one in claim 1 to 5, comprise the following steps:
Step a: apply seal coat at basal plane;
Step b: after priming paint to be closed is dry, paint in seal coat surface-coated polyurethane water-proof bottom surface;
Step c: after polyurethane water-proof bottom surface paint is dry, at polyurethane water-proof bottom surface paint surface-coated polyurethane water-proof surface lacquer.
7. using method according to claim 6, is characterized in that, described polyurethane water-proof paint is used for the waterproof layer material of Railway Concrete Bridge bridge floor, and adopts following methods construction:
Step a: basal plane removing surface is clean, and spraying after surface drying, brushing or roller coating seal coat, make seal coat soak basal plane;
Step b: priming paint to be closed is done solid work or applied after seal coat 24h, at seal coat surface spraying, brushing or roller coating polyurethane water-proof bottom surface paint;
Step c: apply after the paint 24h of polyurethane water-proof bottom surface, at polyurethane water-proof bottom surface paint surface spraying, brushing or roller coating polyurethane water-proof surface lacquer.
8. using method according to claim 7, it is characterized in that, described step c comprises: apply after the paint 24h of polyurethane water-proof bottom surface, check in the lacquering of polyurethane water-proof bottom surface and whether have bubble, while having bubble in the lacquering of polyurethane water-proof bottom surface, bubble is punctured or removed, and adopt polyurethane water-proof surface lacquer to repair, then spraying on the lacquering of whole polyurethane water-proof bottom surface, brushing or roller coating polyurethane water-proof surface lacquer.
9. according to the using method described in claim 7 or 8, it is characterized in that, described method further comprises steps d: apply after polyurethane water-proof surface lacquer 24h, check in polyurethane water-proof surface lacquer coating and whether have bubble, while having bubble in polyurethane water-proof surface lacquer coating, bubble is punctured or removed, and repair with polyurethane water-proof surface lacquer.
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| CN104250516A (en) * | 2014-09-27 | 2014-12-31 | 安徽铁创新材料科技有限公司 | High-elasticity polyurethane water-proof paint for high-speed railway and preparation method thereof |
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| CN1858128A (en) * | 2006-06-01 | 2006-11-08 | 沈阳建筑大学 | Process for producing poly urethane water-proof paint |
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