CN116285689A - Low-temperature-meltable non-solidified asphalt waterproof paint and preparation method thereof - Google Patents
Low-temperature-meltable non-solidified asphalt waterproof paint and preparation method thereof Download PDFInfo
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- CN116285689A CN116285689A CN202310330335.9A CN202310330335A CN116285689A CN 116285689 A CN116285689 A CN 116285689A CN 202310330335 A CN202310330335 A CN 202310330335A CN 116285689 A CN116285689 A CN 116285689A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 81
- 239000003973 paint Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 98
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 98
- 229920001971 elastomer Polymers 0.000 claims abstract description 58
- 239000005060 rubber Substances 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 125000002091 cationic group Chemical group 0.000 claims abstract description 44
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 30
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 229920002121 Hydroxyl-terminated polybutadiene Polymers 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 78
- 239000003995 emulsifying agent Substances 0.000 claims description 26
- 239000011259 mixed solution Substances 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 239000008149 soap solution Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000001804 emulsifying effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 239000008236 heating water Substances 0.000 claims description 8
- 239000000080 wetting agent Substances 0.000 claims description 8
- VXKJCYOFOIIBHH-UHFFFAOYSA-N dimethyl(tetradecyl)azanium;chloride Chemical compound Cl.CCCCCCCCCCCCCCN(C)C VXKJCYOFOIIBHH-UHFFFAOYSA-N 0.000 claims description 7
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 4
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 4
- 125000005442 diisocyanate group Chemical group 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 3
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 2
- -1 alkyl quaternary ammonium salt Chemical class 0.000 claims description 2
- SXPWTBGAZSPLHA-UHFFFAOYSA-M cetalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SXPWTBGAZSPLHA-UHFFFAOYSA-M 0.000 claims description 2
- 229960000228 cetalkonium chloride Drugs 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 238000004132 cross linking Methods 0.000 abstract description 10
- 125000003700 epoxy group Chemical group 0.000 abstract description 8
- 238000005191 phase separation Methods 0.000 abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 4
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract description 2
- 150000004658 ketimines Chemical class 0.000 description 7
- 239000002518 antifoaming agent Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a low-temperature-meltable non-solidified asphalt waterproof paint and a preparation method thereof, comprising A, B components; the component A comprises cationic emulsified asphalt, mixed liquid of epoxy resin and hydroxyl-terminated polybutadiene and isocyanate-terminated polybutadiene liquid rubber. In construction, the component A and the component B can be mixed at normal temperature without high-temperature heating treatment; under the action of the component B curing agent, the epoxy groups of the epoxy resin are opened and undergo a crosslinking reaction with the curing agent, and simultaneously, the epoxy groups and the hydroxyl end groups of the polybutadiene liquid rubber can undergo a crosslinking reaction with the-NCO groups, so that the whole reaction system forms a crosslinking network, the phenomenon of phase separation is avoided, the epoxy resin has good dispersion uniformity and storage stability before use, the introduced isocyanate groups can be decomposed and undergo a crosslinking reaction expansion, the repairing effect is achieved on the waterproof membrane layer, and the waterproof performance of the coating is improved.
Description
Technical Field
The invention relates to the technical field of waterproof paint, in particular to a low-temperature-meltable non-solidified asphalt waterproof paint and a preparation method thereof.
Background
The non-cured rubber modified asphalt waterproof paint has the advantages of strong creep property, good flexibility, high elongation, strong self-healing property and the like. At present, the conventional non-cured rubber asphalt waterproof paint on the market is sticky and gelatinous, has extremely strong binding power and is difficult to directly scrape and wipe, so that a heating and melting method is adopted in most cases, namely, the non-cured rubber asphalt waterproof paint is heated to a certain temperature through matched heating equipment to have good fluidity, and then is subjected to scraping and coating or spraying construction, but the difficulty of construction by the method is high and the energy consumption is high.
The existing reactive non-cured rubber asphalt waterproof paint mainly comprises polyurethane modified asphalt non-cured waterproof paint and epoxy resin modified asphalt non-cured waterproof paint. The polyurethane modified asphalt non-cured waterproof paint is prepared by modifying asphalt by adopting polyurethane prepolymer, and can be constructed at normal temperature, for example, chinese patent CN103923565B discloses a non-cured polyurethane waterproof paint, but because the polyether chain segment and asphalt in a polyurethane structure have obvious polarity difference, the compatibility of the polyether chain segment and the asphalt is poor, the phase separation phenomenon often exists, and even if a compatilizer is added, the phase separation phenomenon also gradually separates out along with the time.
The modified asphalt waterproof paint is more and more researched, because asphalt is bound in an epoxy resin crosslinked network, the strength, the adhesive property and the high-temperature property of the modified asphalt waterproof paint are effectively improved, but because the epoxy resin and asphalt molecules are physically combined, the phenomena of uneven dispersion, phase separation and the like can be caused due to the compatibility problem.
Disclosure of Invention
In view of the above-mentioned problems in the background art, an object of the present invention is to provide a non-curable asphalt waterproofing paint that can be applied at low temperatures.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a non-solidified asphalt waterproof paint capable of being constructed at low temperature comprises a component A and a component B;
the component A comprises the following components in parts by weight: 20-60wt% of asphalt, 15-35wt% of epoxy resin mixed solution, 5-10wt% of isocyanate-terminated polybutadiene liquid rubber, 1-6wt% of cationic emulsifier and 20-40wt% of water;
the epoxy resin mixed solution is prepared by mixing epoxy resin and hydroxyl-terminated polybutadiene liquid rubber according to the weight ratio of 1 (0.05-0.2);
the hydroxyl-terminated polybutadiene liquid rubber is prepared by reacting hydroxyl-terminated polybutadiene liquid rubber with diisocyanate;
the component B comprises an amine curing agent, and the equivalent ratio of the amine curing agent to the epoxy resin is (0.8-1.2): 1.
Further, the component A comprises the following components in parts by weight: 40-60wt% of asphalt, 15-30wt% of epoxy resin mixed solution, 5-10wt% of isocyanate-terminated polybutadiene liquid rubber, 2-5wt% of cationic emulsifier and 15-30wt% of water.
Further, the epoxy resin is bisphenol a type glycidyl ether epoxy resin.
Further, the ring bisphenol A type glycidyl ether epoxy resin is a nonionic emulsion of E-44 epoxy resin, the solid content is 49-51%, and the epoxy value is 0.20-0.22mol/100g.
Further, the cationic emulsifier is alkyl quaternary ammonium salt emulsifier, and is selected from one or more than one of cationic tetradecyl dimethyl ammonium chloride, hexadecyl dimethyl benzyl ammonium chloride, hexadecyl trimethyl ammonium bromide or octadecyl trimethyl ammonium chloride.
The second object of the invention is to provide a preparation method of the non-cured asphalt waterproof paint capable of being constructed at low temperature, which comprises the following steps:
(1) Heating water to 35-50 ℃, adding a cationic emulsifier for stirring, heating to 60-70 ℃, stirring at a high speed for 3-6min to obtain soap solution, heating asphalt to 130-150 ℃, adding the soap solution, stirring, grinding and emulsifying to obtain cationic emulsified asphalt;
(2) Mixing and stirring epoxy resin and hydroxyl-terminated polybutadiene liquid rubber to obtain an epoxy resin mixture;
(3) Cooling the cationic emulsified asphalt to 40-60 ℃, sequentially adding the epoxy resin mixture, the isocyanate-terminated polybutadiene liquid rubber, the wetting agent and the defoamer, stirring, and uniformly stirring and dispersing to obtain a component A;
(4) The component B is prepared according to the equivalent ratio of the curing agent to the epoxy resin (0.8-1.2): 1.
Further, in the step (1), the stirring speed is controlled to be 400-600 rpm after the cationic emulsifier is added, the stirring time is 5-20 min, the temperature is increased to 60-70 ℃, and the stirring speed is increased to 800-1000 rpm.
Further, in the step (3), the stirring process is kept at a temperature of 45-55 ℃ and the stirring speed is 400-700 rpm.
Further, the preparation conditions of the isocyanate-terminated polybutadiene liquid rubber are as follows: the dosage of the hydroxyl-terminated polybutadiene liquid rubber and diisocyanate is according to n -NCO /n -OH 3.5-4.5, and stirring and reacting for 2-4h at 80-90 ℃.
Compared with the prior art, the invention has the following advantages:
1. in the invention, the cationic emulsifier is used for emulsifying and modifying asphalt, so that the asphalt has better adhesive force and peeling resistance when waterproof work is carried out on building facilities, and epoxy resin groups are easily suffered from H in a cationic system + The attack causes ring-opening polymerization of epoxy groups, so that the epoxy resin is modified by using the liquid rubber containing hydroxyl groups (hydroxyl-terminated polybutadiene liquid rubber), on one hand, the hydroxyl-terminated groups of the liquid rubber can form intermolecular hydrogen bonds with the epoxy groups of the epoxy resin, so that the epoxy resin is protected, the stability of an epoxy resin modified asphalt system is improved, on the other hand, the polybutadiene liquid rubber has a polybutadiene soft segment with excellent flexibility, so that the flexibility of the epoxy resin can be improved, the fluidity of the epoxy resin modified asphalt coating can be improved, and the spraying construction can be realized under the condition of relatively low temperature.
2. According to the invention, the polybutadiene liquid rubber is used for modifying the epoxy resin, and meanwhile, the isocyanate-terminated polybutadiene liquid rubber is added into a modification system of the emulsified asphalt, on one hand, active groups (hydroxyl and isocyanate) of the polybutadiene liquid rubber can be respectively connected with the epoxy resin and asphalt molecules, and chemical bond connection is introduced, so that the problem of poor compatibility between the epoxy resin and asphalt is solved.
3. The epoxy resin modified asphalt waterproof paint is reaction curing type, and the component A and the component B can be mixed and used at normal temperature in construction without high-temperature heating treatment; under the action of the component B curing agent, the epoxy groups of the epoxy resin are opened and undergo a crosslinking reaction with the curing agent, and simultaneously, the epoxy groups and the hydroxyl end groups of the polybutadiene liquid rubber can undergo a crosslinking reaction with the-NCO groups, so that the whole reaction system forms a crosslinking network, the phenomenon of phase separation is avoided, the epoxy resin has good dispersion uniformity and storage stability before use, the introduced isocyanate groups can be decomposed and undergo a crosslinking reaction expansion, the repairing effect is achieved on the waterproof membrane layer, and the waterproof performance of the coating is improved.
Detailed Description
The following describes specific embodiments of the present invention in detail. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
The raw materials used in the invention are conventional commercial products unless specified; the methods used in the present invention are conventional in the art unless otherwise specified.
The epoxy resin is a nonionic emulsion of E-44 epoxy resin, the solid content is 49-51%, and the epoxy value is 0.20-0.22mol/100g;
the isocyanate-terminated polybutadiene liquid rubber ITPB has an isocyanate group content of 1.8-2.58%.
Example 1
In this embodiment, a non-cured asphalt waterproof coating capable of being constructed at a low temperature is provided, which comprises:
the component A comprises 60 parts of asphalt, 15 parts of epoxy resin mixed solution, 5 parts of isocyanate-terminated polybutadiene liquid rubber, 2 parts of tetradecyl dimethyl ammonium chloride serving as a cationic emulsifier and 18 parts of water;
the epoxy resin mixed solution is prepared by mixing epoxy resin and hydroxyl-terminated polybutadiene liquid rubber according to the weight ratio of 1:0.2;
and the equivalent ratio of the component B, the ketimine curing agent and the epoxy resin is 1:1.
The preparation method comprises the following steps:
(1) Heating water to 50 ℃, adding a cationic emulsifier for stirring, controlling the stirring speed to be 500rpm, stirring for 20min, heating to 70 ℃, increasing the stirring speed to 1000rpm, stirring at a high speed for 5min to obtain soap solution, heating asphalt to 130-150 ℃, adding the soap solution, stirring, grinding and emulsifying to obtain cationic emulsified asphalt;
(2) Mixing and stirring epoxy resin and hydroxyl-terminated polybutadiene liquid rubber to obtain an epoxy resin mixture;
(3) Cooling the cationic emulsified asphalt to 60 ℃, sequentially adding the epoxy resin mixture and the isocyanate-terminated polybutadiene liquid rubber, keeping the temperature at 45-55 ℃, stirring at 600rpm, adding a wetting agent and a defoaming agent, and stirring and dispersing uniformly to obtain a component A;
(4) The B component was prepared at an equivalent ratio of curing agent to epoxy resin of 1:1.
Example 2
In this embodiment, a non-cured asphalt waterproof coating capable of being constructed at a low temperature is provided, which comprises:
the component A comprises 60 parts of asphalt, 15 parts of epoxy resin mixed solution, 5 parts of isocyanate-terminated polybutadiene liquid rubber, 2 parts of tetradecyl dimethyl ammonium chloride serving as a cationic emulsifier and 18 parts of water;
the epoxy resin mixed solution is prepared by mixing epoxy resin and hydroxyl-terminated polybutadiene liquid rubber according to the weight ratio of 1:0.1;
and the equivalent ratio of the component B, the ketimine curing agent and the epoxy resin is 1:1.
The preparation method comprises the following steps:
(1) Heating water to 50 ℃, adding a cationic emulsifier for stirring, controlling the stirring speed to be 500rpm, stirring for 20min, heating to 70 ℃, increasing the stirring speed to 1000rpm, stirring at a high speed for 5min to obtain soap solution, heating asphalt to 130-150 ℃, adding the soap solution, stirring, grinding and emulsifying to obtain cationic emulsified asphalt;
(2) Mixing and stirring epoxy resin and hydroxyl-terminated polybutadiene liquid rubber to obtain an epoxy resin mixture;
(3) Cooling the cationic emulsified asphalt to 60 ℃, sequentially adding the epoxy resin mixture and the isocyanate-terminated polybutadiene liquid rubber, keeping the temperature at 45-55 ℃, stirring at 600rpm, adding a wetting agent and a defoaming agent, and stirring and dispersing uniformly to obtain a component A;
(4) The B component was prepared at an equivalent ratio of curing agent to epoxy resin of 1:1.
Example 3
In this embodiment, a non-cured asphalt waterproof coating capable of being constructed at a low temperature is provided, which comprises:
the component A comprises 50 parts of asphalt, 25 parts of epoxy resin mixed solution, 8 parts of isocyanate-terminated polybutadiene liquid rubber, 2 parts of hexadecyl trimethyl ammonium bromide serving as a cationic emulsifier and 15 parts of water;
the epoxy resin mixed solution is prepared by mixing epoxy resin and hydroxyl-terminated polybutadiene liquid rubber according to the weight ratio of 1:0.2;
and the equivalent ratio of the component B, the ketimine curing agent and the epoxy resin is 1:1.
The preparation method comprises the following steps:
(1) Heating water to 50 ℃, adding a cationic emulsifier for stirring, controlling the stirring speed to be 500rpm, stirring for 20min, heating to 70 ℃, increasing the stirring speed to 1000rpm, stirring at a high speed for 5min to obtain soap solution, heating asphalt to 130-150 ℃, adding the soap solution, stirring, grinding and emulsifying to obtain cationic emulsified asphalt;
(2) Mixing and stirring epoxy resin and hydroxyl-terminated polybutadiene liquid rubber to obtain an epoxy resin mixture;
(3) Cooling the cationic emulsified asphalt to 60 ℃, sequentially adding the epoxy resin mixture and the isocyanate-terminated polybutadiene liquid rubber, keeping the temperature at 45-55 ℃, stirring at 600rpm, adding a wetting agent and a defoaming agent, and stirring and dispersing uniformly to obtain a component A;
(4) The B component was prepared at an equivalent ratio of curing agent to epoxy resin of 1:1.
Example 4
In this embodiment, a non-cured asphalt waterproof coating capable of being constructed at a low temperature is provided, which comprises:
the component A comprises 50 parts of asphalt, 25 parts of epoxy resin mixed solution, 8 parts of isocyanate-terminated polybutadiene liquid rubber, 2 parts of hexadecyl trimethyl ammonium bromide serving as a cationic emulsifier and 15 parts of water;
the epoxy resin mixed solution is prepared by mixing epoxy resin and hydroxyl-terminated polybutadiene liquid rubber according to the weight ratio of 1:0.1;
and the equivalent ratio of the component B, the ketimine curing agent and the epoxy resin is 1:1.
The preparation method comprises the following steps:
(1) Heating water to 50 ℃, adding a cationic emulsifier for stirring, controlling the stirring speed to be 500rpm, stirring for 20min, heating to 70 ℃, increasing the stirring speed to 1000rpm, stirring at a high speed for 5min to obtain soap solution, heating asphalt to 130-150 ℃, adding the soap solution, stirring, grinding and emulsifying to obtain cationic emulsified asphalt;
(2) Mixing and stirring epoxy resin and hydroxyl-terminated polybutadiene liquid rubber to obtain an epoxy resin mixture;
(3) Cooling the cationic emulsified asphalt to 60 ℃, sequentially adding the epoxy resin mixture and the isocyanate-terminated polybutadiene liquid rubber, keeping the temperature at 45-55 ℃, stirring at 600rpm, adding a wetting agent and a defoaming agent, and stirring and dispersing uniformly to obtain a component A;
(4) The B component was prepared at an equivalent ratio of curing agent to epoxy resin of 1:1.
Example 5
In this embodiment, a non-cured asphalt waterproof coating capable of being constructed at a low temperature is provided, which comprises:
the component A comprises 55 parts of asphalt, 20 parts of epoxy resin mixed solution, 8 parts of isocyanate-terminated polybutadiene liquid rubber, 2 parts of tetradecyl dimethyl ammonium chloride serving as a cationic emulsifier and 15 parts of water;
the epoxy resin mixed solution is prepared by mixing epoxy resin and hydroxyl-terminated polybutadiene liquid rubber according to the weight ratio of 1:0.2;
and the equivalent ratio of the component B, the ketimine curing agent and the epoxy resin is 1:1.
The preparation method comprises the following steps:
(1) Heating water to 50 ℃, adding a cationic emulsifier for stirring, controlling the stirring speed to be 500rpm, stirring for 20min, heating to 70 ℃, increasing the stirring speed to 1000rpm, stirring at a high speed for 5min to obtain soap solution, heating asphalt to 130-150 ℃, adding the soap solution, stirring, grinding and emulsifying to obtain cationic emulsified asphalt;
(2) Mixing and stirring epoxy resin and hydroxyl-terminated polybutadiene liquid rubber to obtain an epoxy resin mixture;
(3) Cooling the cationic emulsified asphalt to 60 ℃, sequentially adding the epoxy resin mixture and the isocyanate-terminated polybutadiene liquid rubber, keeping the temperature at 45-55 ℃, stirring at 600rpm, adding a wetting agent and a defoaming agent, and stirring and dispersing uniformly to obtain a component A;
(4) The B component was prepared at an equivalent ratio of curing agent to epoxy resin of 1:1.
Example 6
In this embodiment, a non-cured asphalt waterproof coating capable of being constructed at a low temperature is provided, which comprises:
the component A comprises 55 parts of asphalt, 20 parts of epoxy resin mixed solution, 8 parts of isocyanate-terminated polybutadiene liquid rubber, 2 parts of tetradecyl dimethyl ammonium chloride serving as a cationic emulsifier and 15 parts of water;
the epoxy resin mixed solution is prepared by mixing epoxy resin and hydroxyl-terminated polybutadiene liquid rubber according to the weight ratio of 1:0.1;
and the equivalent ratio of the component B, the ketimine curing agent and the epoxy resin is 1:1.
The preparation method comprises the following steps:
(1) Heating water to 50 ℃, adding a cationic emulsifier for stirring, controlling the stirring speed to be 500rpm, stirring for 20min, heating to 70 ℃, increasing the stirring speed to 1000rpm, stirring at a high speed for 5min to obtain soap solution, heating asphalt to 130-150 ℃, adding the soap solution, stirring, grinding and emulsifying to obtain cationic emulsified asphalt;
(2) Mixing and stirring epoxy resin and hydroxyl-terminated polybutadiene liquid rubber to obtain an epoxy resin mixture;
(3) Cooling the cationic emulsified asphalt to 60 ℃, sequentially adding the epoxy resin mixture and the isocyanate-terminated polybutadiene liquid rubber, keeping the temperature at 45-55 ℃, stirring at 600rpm, adding a wetting agent and a defoaming agent, and stirring and dispersing uniformly to obtain a component A;
(4) The B component was prepared at an equivalent ratio of curing agent to epoxy resin of 1:1.
Comparative example 1
This comparative example provides a non-cured asphalt waterproofing paint comprising:
the component A comprises 60 parts of asphalt, 23 parts of epoxy resin, 2 parts of tetradecyl dimethyl ammonium chloride serving as a cationic emulsifier and 15 parts of water;
and the equivalent ratio of the component B, the ketimine curing agent and the epoxy resin is 1:1.
The preparation method is the same as in example 1.
Performance detection
The coatings prepared in examples 1 to 6 and comparative example 1 were cured, and the resulting waterproof coatings were tested according to the GB/T16777-2008 building waterproof coating test method, with the test results shown in Table 1 below.
Table 1 comparison of results of Performance tests for different samples
| Test item | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Comparative example 1 |
| 10d stability,% | 1.4 | 1.6 | 1.5 | 1.8 | 1.7 | 1.6 | 15 |
| 30d stability,% | 10.5 | 10.0 | 10.5 | 11.5 | 11.0 | 10.5 | Caking solidification |
| Tear Strength, N/m | 8.86 | 8.74 | 8.80 | 8.78 | 8.82 | 8.77 | 6.24 |
| Heat resistance, no flow at C | 140 | 150 | 145 | 150 | 140 | 145 | 110 |
| Soft at low temperature, no crack at DEG C | -5 | -3 | -4 | -5 | -4 | -4 | 5 |
| Bond strength, MPa | 1.05 | 0.98 | 0.94 | 1.02 | 0.90 | 0.93 | 0.64 |
| Elongation at break% | 1257 | 1195 | 1206 | 1226 | 1245 | 1217 | 857 |
| Moisture resistance of water absorption, percent | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ＞2 |
| Elastic recovery rate% | ≥96 | ≥96 | ≥96 | ≥96 | ≥96 | ≥96 | ＜90 |
As can be seen from the data in Table 1, the component A and the component B of the waterproof coating can be mixed and used at normal temperature in construction, the epoxy group of the epoxy resin is opened under the action of the component B curing agent and is subjected to crosslinking reaction with the curing agent, and meanwhile, the epoxy group and the terminal hydroxyl group of the polybutadiene liquid rubber can be subjected to crosslinking reaction with the-NCO group, so that a crosslinked network is formed by the whole reaction system, the phenomenon of phase separation is avoided, the waterproof coating has good dispersion uniformity and storage stability before use, and the good stability is still maintained after 30 days. The waterproof coating has good cohesiveness with the surface of a concrete building, and the obtained waterproof coating has good peeling resistance, rebound resilience, high toughness, water resistance, moisture resistance and excellent stability.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The non-cured asphalt waterproof paint capable of being constructed at low temperature is characterized by comprising a component A and a component B;
the component A comprises the following components in parts by weight: 20-60wt% of asphalt, 10-35wt% of epoxy resin mixed solution, 5-10wt% of isocyanate-terminated polybutadiene liquid rubber, 1-6wt% of cationic emulsifier and 10-40wt% of water;
the epoxy resin mixed solution is prepared by mixing epoxy resin and hydroxyl-terminated polybutadiene liquid rubber according to the weight ratio of 1 (0.05-0.2);
the hydroxyl-terminated polybutadiene liquid rubber is prepared by reacting hydroxyl-terminated polybutadiene liquid rubber with diisocyanate;
the component B comprises an amine curing agent, and the equivalent ratio of the amine curing agent to the epoxy resin is (0.8-1.2): 1.
2. The non-curable asphalt waterproof paint capable of being constructed at low temperature according to claim 1, wherein the component A comprises the following components in parts by weight: 40-60wt% of asphalt, 15-30wt% of epoxy resin mixed solution, 5-10wt% of isocyanate-terminated polybutadiene liquid rubber, 2-5wt% of cationic emulsifier and 15-30wt% of water.
3. The non-curable asphalt waterproofing paint capable of being constructed at low temperature according to claim 1, wherein the epoxy resin is bisphenol a type glycidyl ether epoxy resin.
4. The non-curable asphalt waterproof paint capable of being constructed at low temperature according to claim 3, wherein the cyclic bisphenol A type glycidyl ether epoxy resin is a non-ionic emulsion of E-44 epoxy resin, the solid content is 49-51%, and the epoxy value is 0.20-0.22mol/100g.
5. The non-cured asphalt waterproof paint capable of being constructed at low temperature according to claim 1, wherein the cationic emulsifier is alkyl quaternary ammonium salt emulsifier, and is selected from one or more of cationic tetradecyl dimethyl ammonium chloride, hexadecyl dimethyl benzyl ammonium chloride, hexadecyl trimethyl ammonium bromide or octadecyl trimethyl ammonium chloride.
6. A method for preparing a low-temperature-construction non-curable asphalt waterproof paint according to any one of claims 1 to 5, comprising the steps of:
(1) Heating water to 35-50 ℃, adding a cationic emulsifier for stirring, heating to 60-70 ℃, stirring at a high speed for 3-6min to obtain soap solution, heating asphalt to 130-150 ℃, adding the soap solution, stirring, grinding and emulsifying to obtain cationic emulsified asphalt;
(2) Mixing and stirring epoxy resin and hydroxyl-terminated polybutadiene liquid rubber to obtain an epoxy resin mixture;
(3) Cooling the cationic emulsified asphalt to 40-60 ℃, sequentially adding the epoxy resin mixture, the isocyanate-terminated polybutadiene liquid rubber, the wetting agent and the defoamer, stirring, and uniformly stirring and dispersing to obtain a component A;
(4) The component B is prepared according to the equivalent ratio of the curing agent to the epoxy resin (0.8-1.2): 1.
7. The method for preparing a non-curable asphalt waterproof paint capable of being constructed at a low temperature according to claim 6, wherein in the step (1), the stirring speed is controlled to be 400-600 rpm after the cationic emulsifier is added, the stirring time is 5-20 min, the temperature is raised to 60-70 ℃, and the stirring speed is increased to 800-1000 rpm.
8. The method for preparing a non-curable asphalt waterproof paint capable of being constructed at a low temperature according to claim 6, wherein the stirring process in the step (3) is kept at a temperature of 45-55 ℃ and a stirring speed of 400-700 rpm.
9. The method for preparing the non-cured asphalt waterproof coating capable of being constructed at low temperature according to claim 6, wherein the preparation conditions of the isocyanate-terminated polybutadiene liquid rubber are as follows: the dosage of the hydroxyl-terminated polybutadiene liquid rubber and diisocyanate is according to n -NCO /n -OH 3.5-4.5, and stirring and reacting for 2-4h at 80-90 ℃.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117165033A (en) * | 2023-09-08 | 2023-12-05 | 湖南瑞弗斯科技发展有限公司 | Epoxy asphalt modified material for asphalt pavement repair |
| CN117165033B (en) * | 2023-09-08 | 2024-04-26 | 湖南瑞弗斯科技发展有限公司 | Epoxy asphalt modified material for asphalt pavement repair |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010174229A (en) * | 2009-02-02 | 2010-08-12 | Emulsion Technology Co Ltd | Modified asphalt composition, hardened film using the same, and waterproofing method |
| CN109897545A (en) * | 2019-03-02 | 2019-06-18 | 上海禹夷新材料科技有限公司 | A kind of uncured rubber asphalt waterproof coating of modification and preparation method thereof |
| CN112852299A (en) * | 2021-03-11 | 2021-05-28 | 四川省威盾新材料有限公司 | Reactive non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN112920701A (en) * | 2019-08-02 | 2021-06-08 | 江苏凯伦建材股份有限公司 | Preparation method of double-component normal-temperature non-cured asphalt polyurethane waterproof coating |
| CN213863280U (en) * | 2020-12-04 | 2021-08-03 | 湖北古城建筑防水工程有限公司 | Raw material storage equipment is used in production of non-curing rubber asphalt waterproof coating |
| CN114213857A (en) * | 2021-12-31 | 2022-03-22 | 宿迁东方雨虹建筑材料有限公司 | Epoxy resin modified emulsified petroleum asphalt material capable of being stored for long time and preparation method thereof |
| CN115197644A (en) * | 2022-08-16 | 2022-10-18 | 福建中意铁科新型材料有限公司 | Cold-coating non-curing rubber asphalt waterproof coating, preparation and construction |
-
2023
- 2023-03-30 CN CN202310330335.9A patent/CN116285689A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010174229A (en) * | 2009-02-02 | 2010-08-12 | Emulsion Technology Co Ltd | Modified asphalt composition, hardened film using the same, and waterproofing method |
| CN109897545A (en) * | 2019-03-02 | 2019-06-18 | 上海禹夷新材料科技有限公司 | A kind of uncured rubber asphalt waterproof coating of modification and preparation method thereof |
| CN112920701A (en) * | 2019-08-02 | 2021-06-08 | 江苏凯伦建材股份有限公司 | Preparation method of double-component normal-temperature non-cured asphalt polyurethane waterproof coating |
| CN213863280U (en) * | 2020-12-04 | 2021-08-03 | 湖北古城建筑防水工程有限公司 | Raw material storage equipment is used in production of non-curing rubber asphalt waterproof coating |
| CN112852299A (en) * | 2021-03-11 | 2021-05-28 | 四川省威盾新材料有限公司 | Reactive non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN114213857A (en) * | 2021-12-31 | 2022-03-22 | 宿迁东方雨虹建筑材料有限公司 | Epoxy resin modified emulsified petroleum asphalt material capable of being stored for long time and preparation method thereof |
| CN115197644A (en) * | 2022-08-16 | 2022-10-18 | 福建中意铁科新型材料有限公司 | Cold-coating non-curing rubber asphalt waterproof coating, preparation and construction |
Non-Patent Citations (1)
| Title |
|---|
| 常英;熊俊;吴应林;熊卫锋;: "道桥用水性环氧沥青防水涂料研究", 中国建筑防水, no. 24, pages 11 - 13 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117165033A (en) * | 2023-09-08 | 2023-12-05 | 湖南瑞弗斯科技发展有限公司 | Epoxy asphalt modified material for asphalt pavement repair |
| CN117165033B (en) * | 2023-09-08 | 2024-04-26 | 湖南瑞弗斯科技发展有限公司 | Epoxy asphalt modified material for asphalt pavement repair |
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