CN109401624B - Thixotropic water-based modified asphalt waterproof coating and preparation method thereof - Google Patents
Thixotropic water-based modified asphalt waterproof coating and preparation method thereof Download PDFInfo
- Publication number
- CN109401624B CN109401624B CN201811231614.5A CN201811231614A CN109401624B CN 109401624 B CN109401624 B CN 109401624B CN 201811231614 A CN201811231614 A CN 201811231614A CN 109401624 B CN109401624 B CN 109401624B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- stirring
- water
- coating
- waterproof coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 156
- 238000000576 coating method Methods 0.000 title claims abstract description 155
- 239000011248 coating agent Substances 0.000 title claims abstract description 150
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 230000009974 thixotropic effect Effects 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 125000000129 anionic group Chemical group 0.000 claims abstract description 33
- 229920000126 latex Polymers 0.000 claims abstract description 32
- 239000004816 latex Substances 0.000 claims abstract description 31
- 239000007787 solid Substances 0.000 claims abstract description 26
- 239000006004 Quartz sand Substances 0.000 claims abstract description 24
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 22
- 239000002562 thickening agent Substances 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims description 79
- 239000000839 emulsion Substances 0.000 claims description 31
- 230000001804 emulsifying effect Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000004814 polyurethane Substances 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 12
- 239000012874 anionic emulsifier Substances 0.000 claims description 11
- 239000002518 antifoaming agent Substances 0.000 claims description 11
- 239000003381 stabilizer Substances 0.000 claims description 11
- 239000000084 colloidal system Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000003995 emulsifying agent Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- 239000002480 mineral oil Substances 0.000 claims description 3
- 235000010446 mineral oil Nutrition 0.000 claims description 3
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 31
- 238000000034 method Methods 0.000 description 20
- 239000003973 paint Substances 0.000 description 16
- 238000010276 construction Methods 0.000 description 15
- 238000012986 modification Methods 0.000 description 14
- 230000004048 modification Effects 0.000 description 14
- 238000012360 testing method Methods 0.000 description 13
- 238000002156 mixing Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 238000005507 spraying Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 239000003607 modifier Substances 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 6
- 239000002174 Styrene-butadiene Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 229920003048 styrene butadiene rubber Polymers 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 4
- 239000011527 polyurethane coating Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 229960000892 attapulgite Drugs 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical group O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229920003086 cellulose ether Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 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 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000002715 modification method Methods 0.000 description 2
- 229910052625 palygorskite Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- -1 acrylic ester Chemical class 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000006254 rheological additive Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 230000008719 thickening Effects 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a thixotropic water-based modified asphalt waterproof coating which comprises the following components in parts by weight: 28-32 parts of anionic emulsified asphalt, 6-9 parts of neoprene latex, 29-32 parts of water, 28-33 parts of quartz sand and 0.7-1 part of associative thickener. The invention also provides a preparation method of the thixotropic water-based modified asphalt waterproof coating. The invention has higher solid content and better coating performance, temperature resistance, flexibility, creep property and thixotropy.
Description
Technical Field
The invention relates to a waterproof coating, in particular to a thixotropic water-based modified asphalt waterproof coating and a preparation method thereof.
Background
Asphalt is used as a modern petrochemical raw material, is widely applied to the field of building waterproofing due to the specific hydrophobicity and excellent caking property, and the main products at present comprise asphalt coiled materials, spraying rubber asphalt and various modified asphalt coatings. With the recent emergence of various rubber modifiers, the novel water-emulsion modified asphalt paint is unprecedentedly applied and developed in the field of building waterproofing, and is considered as a novel waterproof material which saves energy and resources, protects the environment and reduces pollution. Unlike the construction application of asphalt coiled materials, the water-emulsion asphalt coating is generally divided into spraying, blade coating and brush coating when applied, asphalt is modified to obtain the water-emulsion asphalt waterproof coating in any construction mode, and the modification method and process determine the performance of a coating formed after the coating is constructed. Common modification methods include a hot melting method and a normal temperature method, wherein the normal temperature method is to dissolve asphalt and modified resin (such as SBS) into a proper mixed solvent together and add filler to obtain a solvent type waterproof coating system, although the performance of an asphalt coating film modified by the normal temperature method is not poor, the solvent system does not meet the environmental protection requirement, and the solvent system belongs to non-aqueous asphalt coating; the water-emulsion asphalt waterproof paint is generally produced by a hot-melting method, also called a hot-mixing method, and a mixed modification system of asphalt and a modifier is obtained by primary or secondary hot mixing, for example, neoprene latex modified asphalt paint meeting the waterproof requirement of roads and bridges is prepared by the secondary hot-mixing method, neoprene and SBR rubber modified asphalt for spraying construction is prepared by the primary hot-mixing method, and acrylic ester and SBR latex modified asphalt waterproof paint and the like are prepared by the primary hot-mixing method.
In the period of seven five, the country has already planned to issue development and popularization of water-emulsion asphalt waterproof coating technical projects, and extensive scientific research institutions and related enterprises make efforts and strengthen communication with foreign colleagues, and since eight five, modifiers mainly applied in the research of modified water-emulsion asphalt waterproof coating technology in China are as follows: rubber-based styrene-butadiene latex (SBR), chloroprene latex (CRL), and the like; the thermoplastic rubber is SBS; the thermoplastic resins include acrylic latex, etc., and most of them are SBR and CRL at present. Based on construction factors, the coating is mainly applied to spraying modified asphalt, generally a two-component system, namely, an aqueous system formed by blending and modifying a high-molecular polymer modifier and high-solid emulsified asphalt is a component A, an ionic water solution is a component B of a demulsifier, the two components are sprayed out by a nozzle of spraying equipment, are atomized and mixed and then are quickly demulsified and separated from water to be condensed into a film, however, the solid content of the emulsified and modified asphalt component of the spraying system is generally 55 to 60 percent, a large amount of water is separated out in the demulsification film-forming process, residual water is easily formed between the coating film and the base layer, the adhesive property of the coating film is directly influenced, and the anti-stripping agent and the base surface adhesive are added in the formula by adopting multiple spraying to improve the adhesive strength between the asphalt coating film and the base surface, the problem that the construction process directly affects the application effect is caused, and operators with rich experience can ensure that the material achieves the best effect in the construction application.
Other aqueous modified asphalt coatings which can be directly applied to brushing, blade coating and other construction modes are generally limited by production processes, the addition of a modifier is limited in the process of preparing the aqueous emulsion modified asphalt coating by hot mixing, and the modification of asphalt is not ideal due to the difficulty in adding, so that the obtained modified emulsified asphalt coating has low solid content which is mostly below 50%; and the coating is a single-component leveling coating, has no quick forming characteristic of spraying quick-setting asphalt coating, and is limited in construction on vertical surfaces and bottom plate roofs.
Therefore, the water-emulsion modified asphalt paint is prepared into a single-component system, and the system is endowed with certain thixotropic property through rheological modification, so that the product can adapt to vertical and plane construction applications such as spraying, brushing and blade coating, and the like, and meanwhile, the performance of a formed coating film can meet the product performance requirements of the water-emulsion asphalt waterproof paint applied at present, but the problems of the water-based modified asphalt paint applied at present can be solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a thixotropic aqueous modified asphalt waterproof coating which has high solid content and good film coating performance, temperature resistance, flexibility, creep property and thixotropy.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a thixotropic water-based modified asphalt waterproof coating comprises the following components in parts by weight: 28-32 parts of anionic emulsified asphalt, 6-9 parts of neoprene latex, 29-32 parts of water, 28-33 parts of quartz sand and 0.7-1 part of associative thickener.
Furthermore, the anionic emulsified asphalt provided by the invention comprises asphalt, an anionic emulsifier, a stabilizer, a defoaming agent and water.
Further, the anionic emulsified asphalt provided by the invention comprises the following components in percentage by weight: 60-62% of asphalt, 4-5% of anionic emulsifier, 0.1% of stabilizer, 0.02% of defoaming agent and the balance of water.
Further, the asphalt of the invention is 70# asphalt.
Furthermore, the anionic emulsifier is sodium dodecyl sulfate or sodium dodecyl benzene sulfonate.
Further, the stabilizer is polyvinyl alcohol or sodium carboxymethyl cellulose.
Further, the defoaming agent is emulsified silicone oil or mineral oil.
Further, the preparation steps of the anionic emulsified asphalt of the invention are as follows:
(1) adding the measured water, anionic emulsifier, stabilizer and defoaming agent into an emulsifier metering tank, heating to 90 ℃, adjusting the pH value to 8-9, uniformly stirring, and cooling to 80 ℃ to obtain an emulsion for later use;
(2) heating 70# asphalt to 160 ℃, pumping into an asphalt metering tank, and cooling to 120-130 ℃ to obtain molten asphalt for later use;
(3) and (3) inputting the emulsion obtained in the step (1) and the molten asphalt obtained in the step (2) into an emulsifying tank provided with an emulsifying machine, adjusting the pH value to 8-9, stirring and emulsifying, grinding by using a colloid mill, homogenizing, sampling, detecting and discharging to obtain the anionic emulsified asphalt.
Further, the associative thickener of the invention is a nonionic polyurethane associative thickener.
The invention also provides a preparation method of the thixotropic water-based modified asphalt waterproof coating.
In order to solve the technical problems, the technical scheme is as follows:
a preparation method of a thixotropic water-based modified asphalt waterproof coating comprises the following steps:
(1) putting the anionic emulsified asphalt into a stirring tank according to the measurement, adding measured neoprene latex, and stirring for 15 minutes at normal temperature, wherein the stirring speed is 500-600 r/min;
(2) putting the metered quartz sand into a stirring tank while stirring, and continuing stirring for 20 minutes after the quartz sand is put into the stirring tank, wherein the stirring speed is 700-800 r/min;
(3) putting the other metered components into a stirring tank, and stirring for 5-10 minutes at the stirring speed of 900-1000 r/min;
(4) sampling, inspecting, weighing and packaging to obtain the thixotropic water-based modified asphalt waterproof coating.
Compared with the prior art, the invention has the following beneficial effects:
1) the water emulsion type asphalt waterproof coating is obtained by modifying asphalt, wherein the asphalt modification comprises the steps of firstly modifying and then emulsifying or firstly emulsifying and then modifying, the effect of the first modification and then emulsifying process on asphalt modification is not ideal, and emulsified modified asphalt with higher solid content is difficult to obtain. The emulsified asphalt is divided into cationic emulsified asphalt, anionic emulsified asphalt and nonionic emulsified asphalt, different emulsified asphalt has direct influence on the subsequent modification process, mainly manifested by that the addition of the modified material can destroy the stability of the system, the elongation of the coating after the film formation of the asphalt coating is low, etc., the elongation of the coating of the waterproof coating is an important index directly showing the waterproof performance, generally, the elongation of more than 200% can meet the waterproof requirement of buildings, and tests show that the elongation of the coating obtained by adopting the anionic emulsified asphalt can meet the requirement of the waterproof coating.
2) The asphalt adopted by the invention is 70# asphalt, the 70# asphalt usually exists in a glass state at normal temperature, flows at high temperature, is brittle and hard at low temperature and cannot be used as a coating at normal temperature, and the anion emulsified asphalt modified by the chloroprene latex has the leveling property of a common water-based coating at normal temperature, the temperature application range of a coating film is expanded to more than-20 to +80 ℃, the coating film has better temperature resistance, the elongation is higher and the coating film has very good flexibility.
3) The solid content is an important index of the coating, the high solid content is a main requirement of the modern environment-friendly coating, the higher the solid content is, the less the coating amount is required to reach the same coating thickness, the greater the contribution to the environment protection is, the less the consumption is, and the lower the construction cost is, so that the product with the higher solid content is more popular in the market on the premise that the performance index meets the requirement. The factors contributing to the solid content of the coating mainly have two aspects, namely the effective components of the emulsion, namely the solid content of the emulsion, and the added pigment and filler. The solid content of the emulsified asphalt used in the invention is about 60 percent, and the solid content of the neoprene latex is 50-55 percent, which are all fixed, so the solid content of the coating depends on the dosage of the added filler, meanwhile, different fillers have larger influence on the performance and the cost of the coating, and tests show that the quartz sand with proper dosage used in the invention can reach higher solid content, and can keep better temperature resistance and coating elongation.
4) The water-emulsion asphalt coating can be applied at normal temperature because the coating film formed on a base surface after construction coating is in a viscoelastic state after the asphalt coating is modified, which is also the application state of other thermoplastic or thermosetting waterproof coating films, but both thermosetting polyurethane coatings and thermoplastic acrylate coatings can form cohesive stress after film formation, when the coating films crack on the base surface, the cohesive stress can generate stress along with the elastic deformation of the coating films due to the crack displacement, and the stress is unfavorable for the durability of the waterproof coating film and can be transmitted to a bonding point between the coating film and the base surface through the coating film, so that the coating film is pulled away. The coating film of the emulsified asphalt used in the invention has low tensile strength, i.e. the cohesion of the coating film is not high, and the neoprene latex with proper dosage can ensure that the coating prepared into the coating film has the characteristic that the tensile stress does not change along with time, i.e. creep property.
5) The thixotropy of the coating is that the viscosity of the coating is reduced under the action of higher shearing force during construction under the condition of controlling the coating system within a specific viscosity range, so that the coating is convenient to adapt to various construction modes, such as spraying, brushing, blade coating, roller coating and the like, and when the construction is finished and external force is eliminated, the viscosity of the coating is rapidly increased, so that the coating does not flow on a vertical surface due to the action of gravity, form turbulence to influence appearance and subsequent construction, and even cause the whole slurry of the coating to fall off. The rheology modification of the coating is usually carried out by two ways, namely adding a thixotropic material in the process and adding a rheology modifier in the later period. The addition in the process is carried out at the later stage of slurrying, and then paint mixing and color mixing are carried out; the later addition is to add the thixotropic material after the paint mixing and color mixing are finished. The modified asphalt paint is different from common water paint in production process, and the solid powder as stuffing is thrown into the mixture of modifier emulsion and asphalt emulsion directly and stirred, so that no powder slurrying process is required, and the rheological modification of the system may be completed in paint mixing step. The associative thickener used in the invention has ideal rheological control performance, can generate thickening effect on polymers in water and emulsion, only thickens the water and the emulsion with fluidity in a paint system, and does not generate other side effects on the system, so that the mechanical property and the thixotropic property of the final coating film can well meet the standard requirements.
6) The water resistance of the coating film is an important property of the waterproof coating and directly influences the service life of the waterproof coating, the coating is weaker in hydrophilicity and lower in water absorption rate, so that the coating film is a material with the lowest water absorption in the water-based coating, and the change rate of the performance of the coating film after water absorption, namely the degree of influence of water, is the lowest. Actual detection data show that the elongation of a coating film of the coating is hardly affected after the coating film is soaked in water for 96 hours, and the coating is a water-based waterproof coating with better water resistance than reactive coating polyurethane.
Detailed Description
The present invention will be described in detail with reference to specific embodiments, and the exemplary embodiments and descriptions thereof herein are provided to explain the present invention but not to limit the present invention.
Example 1
The thixotropic water-based modified asphalt waterproof coating comprises the following components in parts by weight: 28 parts of anionic emulsified asphalt, 9 parts of neoprene latex, 29 parts of water, 30 parts of quartz sand and 0.8 part of nonionic polyurethane associative thickener; the anionic emulsified asphalt comprises the following components in percentage by weight: 61.5% of No. 70 asphalt, 4% of sodium dodecyl sulfate, 0.1% of polyvinyl alcohol, 0.02% of emulsified silicone oil and the balance of water.
The preparation method of the thixotropic water-based modified asphalt waterproof coating comprises the following steps:
(1) adding the measured water, anionic emulsifier, stabilizer and defoaming agent into an emulsifier metering tank, heating to 90 ℃, adjusting the pH value to 9, uniformly stirring, and cooling to 80 ℃ to obtain an emulsion for later use;
(2) heating 70# asphalt to 160 ℃, pumping into an asphalt metering tank, and cooling to 130 ℃ to obtain molten asphalt for later use;
(3) inputting the emulsion obtained in the step (1) and the molten asphalt obtained in the step (2) into an emulsifying tank provided with an emulsifying machine, adjusting the pH value to 9, stirring and emulsifying, grinding by using a colloid mill, homogenizing, sampling, detecting and discharging to obtain anionic emulsified asphalt;
(4) putting the anionic emulsified asphalt into a stirring tank according to the measurement, adding measured neoprene latex, and stirring for 15 minutes at normal temperature, wherein the stirring speed is 600 r/min;
(5) putting the metered quartz sand into a stirring tank while stirring, and continuing stirring for 20 minutes after the quartz sand is put into the stirring tank, wherein the stirring speed is 800 r/min;
(6) putting the other metered components into a stirring tank, and stirring for 5 minutes at the stirring speed of 1000 r/min;
(7) sampling, inspecting, weighing and packaging to obtain the thixotropic water-based modified asphalt waterproof coating.
Example 2
The thixotropic water-based modified asphalt waterproof coating comprises the following components in parts by weight: 32 parts of anionic emulsified asphalt, 6 parts of neoprene latex, 31 parts of water, 32 parts of quartz sand and 0.7 part of nonionic polyurethane associated thickener; the anionic emulsified asphalt comprises the following components in percentage by weight: 62% of No. 70 asphalt, 5% of sodium dodecyl benzene sulfonate, 0.1% of polyvinyl alcohol, 0.02% of emulsified silicone oil and the balance of water.
The preparation method of the thixotropic water-based modified asphalt waterproof coating comprises the following steps:
(1) adding the measured water, anionic emulsifier, stabilizer and defoaming agent into an emulsifier metering tank, heating to 90 ℃, adjusting the pH value to 8, uniformly stirring, and cooling to 80 ℃ to obtain an emulsion for later use;
(2) heating 70# asphalt to 160 ℃, pumping into an asphalt metering tank, and cooling to 120 ℃ to obtain molten asphalt for later use;
(3) inputting the emulsion obtained in the step (1) and the molten asphalt obtained in the step (2) into an emulsifying tank provided with an emulsifying machine, adjusting the pH value to 8, stirring and emulsifying, grinding by using a colloid mill, homogenizing, sampling, detecting and discharging to obtain anionic emulsified asphalt;
(4) putting the anionic emulsified asphalt into a stirring tank according to the measurement, adding measured neoprene latex, and stirring for 15 minutes at normal temperature, wherein the stirring speed is 500 r/min;
(5) putting the metered quartz sand into a stirring tank while stirring, and continuing stirring for 20 minutes after the quartz sand is put into the stirring tank, wherein the stirring speed is 700 r/min;
(6) putting the other metered components into a stirring tank, and stirring for 10 minutes at the stirring speed of 900 r/min;
(7) sampling, inspecting, weighing and packaging to obtain the thixotropic water-based modified asphalt waterproof coating.
Example 3
The thixotropic water-based modified asphalt waterproof coating comprises the following components in parts by weight: 30 parts of anionic emulsified asphalt, 8 parts of neoprene latex, 30 parts of water, 33 parts of quartz sand and 0.9 part of nonionic polyurethane associative thickener; the anionic emulsified asphalt comprises the following components in percentage by weight: 61% of No. 70 asphalt, 4.5% of sodium dodecyl sulfate, 0.1% of sodium carboxymethyl cellulose, 0.02% of emulsified silicone oil and the balance of water.
The preparation method of the thixotropic water-based modified asphalt waterproof coating comprises the following steps:
(1) adding the measured water, anionic emulsifier, stabilizer and defoaming agent into an emulsifier metering tank, heating to 90 ℃, adjusting the pH value to 8.5, uniformly stirring, and cooling to 80 ℃ to obtain an emulsion for later use;
(2) heating 70# asphalt to 160 ℃, pumping into an asphalt metering tank, and cooling to 125 ℃ to obtain molten asphalt for later use;
(3) inputting the emulsion obtained in the step (1) and the molten asphalt obtained in the step (2) into an emulsifying tank provided with an emulsifying machine, adjusting the pH value to 8.5, stirring and emulsifying, grinding by using a colloid mill, homogenizing, sampling, detecting and discharging to obtain anionic emulsified asphalt;
(4) adding the anionic emulsified asphalt into a stirring tank according to the measurement, adding the measured neoprene latex, and stirring for 15 minutes at normal temperature, wherein the stirring speed is 550 r/min;
(5) putting the metered quartz sand into a stirring tank while stirring, and continuing stirring for 20 minutes after the quartz sand is put into the stirring tank, wherein the stirring speed is 750 r/min;
(6) putting the other metered components into a stirring tank, and stirring for 8 minutes at the stirring speed of 950 r/min;
(7) sampling, inspecting, weighing and packaging to obtain the thixotropic water-based modified asphalt waterproof coating.
Example 4
The thixotropic water-based modified asphalt waterproof coating comprises the following components in parts by weight: 31 parts of anionic emulsified asphalt, 7 parts of neoprene latex, 32 parts of water, 28 parts of quartz sand and 1 part of nonionic polyurethane associative thickener; the anionic emulsified asphalt comprises the following components in percentage by weight: 60% of No. 70 asphalt, 4.8% of sodium dodecyl sulfate, 0.1% of polyvinyl alcohol, 0.02% of mineral oil and the balance of water.
The preparation method of the thixotropic water-based modified asphalt waterproof coating comprises the following steps:
(1) adding the measured water, anionic emulsifier, stabilizer and defoaming agent into an emulsifier metering tank, heating to 90 ℃, adjusting the pH value to 8, uniformly stirring, and cooling to 80 ℃ to obtain an emulsion for later use;
(2) heating 70# asphalt to 160 ℃, pumping into an asphalt metering tank, and cooling to 128 ℃ to obtain molten asphalt for later use;
(3) inputting the emulsion obtained in the step (1) and the molten asphalt obtained in the step (2) into an emulsifying tank provided with an emulsifying machine, adjusting the pH value to 8, stirring and emulsifying, grinding by using a colloid mill, homogenizing, sampling, detecting and discharging to obtain anionic emulsified asphalt;
(4) putting the anionic emulsified asphalt into a stirring tank according to the measurement, adding measured neoprene latex, and stirring for 15 minutes at normal temperature, wherein the stirring speed is 520 r/min;
(5) putting the metered quartz sand into a stirring tank while stirring, and continuing stirring for 20 minutes after the quartz sand is put into the stirring tank, wherein the stirring speed is 760 r/min;
(6) putting the other metered components into a stirring tank, and stirring for 6 minutes at the stirring speed of 960 r/min;
(7) sampling, inspecting, weighing and packaging to obtain the thixotropic water-based modified asphalt waterproof coating.
Comparative example 1
The cationic emulsified asphalt was used in place of the anionic emulsified asphalt, and other components and preparation methods were the same as in example 3.
Comparative example 2
The nonionic emulsified asphalt was used in place of the anionic emulsified asphalt, and other components and preparation methods were the same as in example 3.
Comparative example 3
The other components and preparation method were the same as in example 3, except that the chloroprene latex was replaced with styrene-butadiene latex.
Comparative example 4
The polychloroprene latex was replaced with a pure acrylic latex, and the other components and preparation method were the same as in example 3.
Comparative example 5
The other components and preparation method were the same as in example 3, except that the chloroprene latex was replaced with styrene-acrylic latex.
Comparative example 6
Calcium carbonate was used instead of quartz sand, and other components and preparation method were the same as example 3.
Comparative example 7
Talc powder is used in place of silica sand, and the other components and preparation method are the same as those in example 3.
Comparative example 8
Silica powder emulsion was used instead of quartz sand, and other components and preparation method were the same as in example 3.
Comparative example 9
The weight parts of the quartz sand were changed to 44 parts, and the other components and the preparation method were the same as in example 3.
Comparative example 10
The weight part of the quartz sand was changed to 55 parts, and other components and preparation methods were the same as in example 3.
Comparative example 11
The weight parts of the neoprene latex were changed to 5 parts, and the other components and preparation method were the same as example 3.
Comparative example 12
The weight parts of the neoprene latex were changed to 10 parts, and the other components and the preparation method were the same as those of example 3.
Comparative example 13
The non-ionic polyurethane associative thickener was replaced with bentonite, and the other components and preparation method were the same as in example 3.
Comparative example 14
The nonionic polyurethane associative thickener was replaced with attapulgite, and the other components and preparation method were the same as in example 3.
Comparative example 15
The nonionic polyurethane associative thickener was replaced with cellulose ether, and other components and preparation method were the same as in example 3.
Comparative example 16 is a water-borne acrylate coating and comparative example 17 is a two-component polyurethane coating.
Experimental example 1: testing of modification effects of different emulsified asphalts
The method mainly tests the system phenomenon and the film forming property of the coating and comprises the following steps: adding a modifier, uniformly stirring, slightly standing, and coating a film on a glass plate coated with a release agent to prepare a plate; the detection of the elongation of the coating film is carried out according to a method 9.2 in GB/T16777-2008 'test method for waterproof coatings for buildings'. The test results are shown in table 1:
TABLE 1
As can be seen from Table 1, the modification effect and the system stability of the cationic emulsified asphalt and the nonionic emulsified asphalt are poor, and the modification effect and the system stability of the embodiment 3 of the invention are good.
Experimental example 2: testing of the modification Effect of different modified latices
The performance of the coating film is mainly tested, and the detection of the tensile strength, the elongation, the low-temperature flexibility, the heat resistance and the water resistance of the coating film is carried out according to the JC/T408-2005 'Water-emulsion asphalt waterproof coating'. The water resistance test method comprises the following steps: 7 days after each coating is prepared into a plate and formed into a film, dumbbell type I samples are prepared according to the standard requirements of GB/T16777-2008 'test method for waterproof coatings for buildings', and the dumbbell type I samples are observed after being soaked in water for 96 hours. The test results are shown in table 2:
TABLE 2
The No. 70 asphalt is usually in a glass state at normal temperature, flows at high temperature, is brittle and hard at low temperature, and cannot be used as a coating at normal temperature. As can be seen from Table 2, in addition to the leveling property of the general aqueous coating material, the temperature application range of the coating film is expanded to more than-20 to +80 ℃ in the example 3 at normal temperature, and the coating film has very good flexibility and higher elongation, while the elongation of the coating film is inferior to that of the example 3 in the comparative examples 3-5, and the water resistance of the comparative examples 4 and 5 is obviously inferior.
Experimental example 3: effect of Filler on solid content and coating Properties
The test results are shown in tables 3 and 4:
TABLE 3
As can be seen from Table 3, the fillers used in general water-based paints are not all suitable for the present invention due to the limited characteristics of the modified asphalt system, and the same amount of talc powder (comparative example 7) causes system agglomeration, makes it difficult to form a uniform system, and has the worst performance after film formation; while calcium carbonate (comparative example 6) can form a uniform system by matching with the modified asphalt, the coating performance is reduced; silica micropowder (comparative example 8) and silica sand (example 3) are suitable fillers, combining performance and cost considerations, with silica sand being the best choice.
TABLE 4
As can be seen from Table 4, the solid content of the invention is about 65-71%, the low and high temperature performance of the coating film is guaranteed in the solid content range, the elongation of the coating film is reduced along with the increase of the solid content, the 75% solid content is a critical value, the performance of the coating system is rapidly reduced above the critical value, and when the solid content reaches more than 80%, the heat resistance can be maintained, and other indexes can not reach the standard.
Example 4: creep test
Stress relaxation is an index for measuring the creep property of a coating film, and the creep property is better when the numerical value is smaller; the detection of stress relaxation is carried out according to the standard JC/T2428-2017 'non-cured rubber asphalt waterproof coating', and the results are shown in the table 5:
TABLE 5
As can be seen from Table 5, examples 1 and 2 have lower stress relaxation and show better creep properties according to the present invention. Although the stress relaxation of comparative example 11 is lower than that of examples 1 and 2, the elongation and strength of the coating film are significantly inferior to those of examples 1 and 2; the stress relaxation of comparative example 12 is significantly higher than that of examples 1 and 2, and the creep is very poor. The neoprene latex is added in an amount which is the most ideal range for balancing the waterproof performance and maintaining the creep property of the system.
Experimental example 5: thixotropy test
The test results are shown in table 6:
TABLE 6
As can be seen from Table 6, both bentonite (comparative example 13) and attapulgite (comparative example 14) are difficult to disperse uniformly in the system and cannot change the rheology of the system; the cellulose ether (comparative example 15) can provide thixotropy to the system, but still has the problem of not being completely uniformly dispersed in the system and thus affecting the properties of the coating, resulting in a decrease in elongation, low temperature properties; while the embodiment 3 of the invention using the nonionic polyurethane associative thickener has more ideal rheological adjustment performance, and the mechanical properties of the coating film well meet the standard requirements.
Experimental example 6: water resistance test
The coating is prepared into a detection coating according to the standard, then the detection coating is soaked in water for 96 hours, and then the weight change and the elongation change of the coating are measured. The test results are shown in table 7:
TABLE 7
As can be seen from table 7, the polyurethane coating film (comparative example 17) was the lowest in terms of water absorption alone, which corresponds to the non-hydrophilic characteristic of the reactive thermosetting material; on the other hand, the acrylate coating film (comparative example 16) which is also a water-based paint is significantly lower in hydrophilicity than the acrylate coating films (comparative examples 17) of examples 1 and 3 of the present invention, and the water absorption of the acrylate coating films is only slightly higher than that of the polyurethane coating film (comparative example 16), so that the acrylate coating film is the material with the lowest water absorption in the water-based paint; on the other hand, in terms of the retention rate of the performance of the coating after water absorption, the coating of the invention of the embodiments 1 and 3 is undoubtedly the highest, which shows that the elongation of the coating of the invention of the embodiments 1 and 3 is hardly affected after being soaked in water for 96 hours, and the coating is a water-based waterproof coating product with better water resistance than the reactive coating polyurethane.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A thixotropic water-based modified asphalt waterproof coating is characterized in that: the composition comprises the following components in parts by weight: 28-32 parts of anionic emulsified asphalt, 6-9 parts of neoprene latex, 29-32 parts of water, 28-33 parts of quartz sand and 0.7-1 part of associative thickener, wherein the solid content of the neoprene latex is 50-55%, and the anionic emulsified asphalt comprises the following components in percentage by weight: 60-62% of No. 70 asphalt, 4-5% of anionic emulsifier, 0.1% of stabilizer, 0.02% of defoaming agent and the balance of water;
the preparation steps of the anionic emulsified asphalt are as follows:
(1) adding the measured water, anionic emulsifier, stabilizer and defoaming agent into an emulsifier metering tank, heating to 90 ℃, adjusting the pH value to 8-9, uniformly stirring, and cooling to 80 ℃ to obtain an emulsion for later use;
(2) heating 70# asphalt to 160 ℃, pumping into an asphalt metering tank, and cooling to 120-130 ℃ to obtain molten asphalt for later use;
(3) inputting the emulsion obtained in the step (1) and the molten asphalt obtained in the step (2) into an emulsifying tank provided with an emulsifying machine, adjusting the pH value to 8-9, stirring and emulsifying, grinding by using a colloid mill, homogenizing, sampling, detecting and discharging to obtain anionic emulsified asphalt, wherein the solid content of the anionic emulsified asphalt is 60%;
the preparation steps of the thixotropic water-based modified asphalt waterproof coating are as follows:
(1) putting the anionic emulsified asphalt into a stirring tank according to the measurement, adding measured neoprene latex, and stirring for 15 minutes at normal temperature, wherein the stirring speed is 500-600 r/min;
(2) putting the metered quartz sand into a stirring tank while stirring, and continuing stirring for 20 minutes after the quartz sand is put into the stirring tank, wherein the stirring speed is 700-800 r/min;
(3) putting the other metered components into a stirring tank, and stirring for 5-10 minutes at the stirring speed of 900-1000 r/min;
(4) sampling, inspecting, weighing and packaging to obtain the thixotropic aqueous modified asphalt waterproof coating, wherein the solid content of the thixotropic aqueous modified asphalt waterproof coating is 65-71%.
2. The thixotropic aqueous modified asphalt waterproof coating material as claimed in claim 1, wherein: the anionic emulsifier is sodium dodecyl sulfate or sodium dodecyl benzene sulfonate.
3. The thixotropic aqueous modified asphalt waterproof coating material as claimed in claim 1, wherein: the stabilizer is polyvinyl alcohol or sodium carboxymethyl cellulose.
4. The thixotropic aqueous modified asphalt waterproof coating material as claimed in claim 1, wherein: the defoaming agent is emulsified silicone oil or mineral oil.
5. The thixotropic aqueous modified asphalt waterproof coating material as claimed in claim 1, wherein: the associative thickener is a nonionic polyurethane associative thickener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231614.5A CN109401624B (en) | 2018-10-22 | 2018-10-22 | Thixotropic water-based modified asphalt waterproof coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231614.5A CN109401624B (en) | 2018-10-22 | 2018-10-22 | Thixotropic water-based modified asphalt waterproof coating and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109401624A CN109401624A (en) | 2019-03-01 |
| CN109401624B true CN109401624B (en) | 2020-11-06 |
Family
ID=65468218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811231614.5A Active CN109401624B (en) | 2018-10-22 | 2018-10-22 | Thixotropic water-based modified asphalt waterproof coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109401624B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205027A (en) * | 2019-05-29 | 2019-09-06 | 李前进 | A kind of liquid water-proof material of rigid flexible system |
| CN110128947A (en) * | 2019-05-29 | 2019-08-16 | 李前进 | A kind of liquid water-proof material of rigid flexible system and preparation method thereof |
| CN110484141A (en) * | 2019-08-26 | 2019-11-22 | 福建中意铁科新型材料有限公司 | A kind of manufacturing method spraying rapid hardening rubber asphalt waterproof coating |
| CN111205770A (en) * | 2020-01-03 | 2020-05-29 | 中国化工株洲橡胶研究设计院有限公司 | Water-based environment-friendly modified asphalt waterproof coating liquid coiled material and production method thereof |
| CN111793436A (en) * | 2020-07-20 | 2020-10-20 | 上海三棵树防水技术有限公司 | Single-component asphalt-based water-based non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN113336962A (en) * | 2021-04-02 | 2021-09-03 | 西安博望新材料科技有限公司 | Quick demulsifier for cationic emulsified asphalt and preparation method and application thereof |
| CN114196324A (en) * | 2021-12-27 | 2022-03-18 | 四川蜀羊防水材料有限公司 | Water-emulsion type rubber asphalt waterproof coating and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7547356B2 (en) * | 2003-07-14 | 2009-06-16 | John Eric Partanen | Synthetic asphalt recycled tire rubber emulsions and processes for making them |
| CN101235252B (en) * | 2008-01-15 | 2011-04-20 | 大连美宸特环保节能产品有限公司 | Multifunctional liquid rubber spray-coating material, preparation method, using method and special-purpose device |
| JP5532580B2 (en) * | 2008-10-24 | 2014-06-25 | 東ソー株式会社 | Chloroprene latex and method for producing the same |
| WO2012017705A1 (en) * | 2010-08-06 | 2012-02-09 | 電気化学工業株式会社 | Polychloroprene latex, rubber-asphalt composition and construction method thereof, sheet, and waterproof coating film |
| CN102936439A (en) * | 2012-11-27 | 2013-02-20 | 湖北工业大学 | Water-emulsified chloroprene rubber modified asphalt waterproof paint and preparation method thereof |
| CN103965783A (en) * | 2014-05-14 | 2014-08-06 | 株洲飞鹿高新材料技术股份有限公司 | Water-based liquid rubber waterproof paint and preparation method thereof |
| CN104059370B (en) * | 2014-07-01 | 2016-05-18 | 常州展华机器人有限公司 | Inorganic modified emulsified asphalt and preparation method thereof |
| CN104449381A (en) * | 2014-12-19 | 2015-03-25 | 锦州东方雨虹建筑材料有限责任公司 | Composite emulsified asphalt waterproof coating and preparation method thereof |
| CN106957601B (en) * | 2017-03-28 | 2019-10-01 | 北京东方雨虹防水技术股份有限公司 | The preparation method and modified waterproof asphalt material and its application method of a kind of modified waterproof asphalt material |
-
2018
- 2018-10-22 CN CN201811231614.5A patent/CN109401624B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109401624A (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109401624B (en) | Thixotropic water-based modified asphalt waterproof coating and preparation method thereof | |
| CN109575310B (en) | Anionic emulsified modified asphalt, preparation method thereof and anionic high-adhesion water-based asphalt waterproof coating | |
| CN106398244B (en) | Self-adhesive asphalt sizing material, preparation method thereof and self-adhesive asphalt waterproof coiled material | |
| US8536263B2 (en) | Polyurethane-acrylic polymer dispersions and uses thereof | |
| CN106366776B (en) | A kind of non-bituminous base spraying rapid hardening liquid rubber water-repellent paint and preparation method thereof | |
| CN105110732B (en) | A kind of polymer cement RG water-repellent paints and preparation method thereof | |
| CN110016289B (en) | High-performance polymer modified asphalt waterproof coating and preparation method thereof | |
| CN106810814B (en) | Colored emulsified asphalt composition, preparation method and application thereof, waterproof coating and waterproof coating film | |
| CN105645882A (en) | Composite binder for repairing of pits in asphalt pavement and preparation method of composite binder | |
| CN104845491A (en) | Graphene composite floor coating and preparation method thereof | |
| CN101880508B (en) | Preparation method of high abrasion water-borne wood coating | |
| CN109852079B (en) | Novel normal-temperature asphalt modified material and preparation method and application thereof | |
| CN102702909B (en) | Aqueous anti-stone-bumping automobile prime coat material and preparation method thereof | |
| CN102993864B (en) | Aqueous traffic paint and preparation method thereof | |
| CN104673051A (en) | Anti-static epoxy self-leveling coating material | |
| CN110016290A (en) | A kind of uncured rubber asphalt waterproof coating of room temperature quick-reaction type and its application | |
| CN108864447B (en) | Reactive solvent and method for realizing normal-temperature fluidity of asphalt | |
| CN106366923B (en) | A kind of uncured rubber asphalt waterproof coating and preparation method thereof | |
| CN107474774A (en) | A kind of high-durability epoxy construction structure glue and preparation method thereof | |
| Zhang et al. | An asphalt emulsion modified by compound of epoxy resin and styrene-butadiene rubber emulsion | |
| CN106867377B (en) | A kind of aspartate self-leveling coating and preparation method thereof | |
| CN114276780A (en) | Sizing material for improving surface adhesion of S-CLF coiled material and preparation method thereof | |
| CN114350296A (en) | Water-based two-component epoxy crack sealer and preparation method thereof | |
| CN113429887A (en) | Normal-temperature non-curing rubber asphalt waterproof coating and preparation method thereof | |
| CN106047174A (en) | High-temperature-resistant waterproof emulsified asphalt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Thixotropic waterborne modified asphalt waterproof coating and preparation method thereof Effective date of registration: 20220124 Granted publication date: 20201106 Pledgee: Yuexiu sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: GUANGZHOU LUBAN CONSTRUCTION TECHNOLOGY GROUP CO.,LTD. Registration number: Y2022980001013 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230208 Granted publication date: 20201106 Pledgee: Yuexiu sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: GUANGZHOU LUBAN CONSTRUCTION TECHNOLOGY GROUP CO.,LTD. Registration number: Y2022980001013 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A thixotropic waterborne modified asphalt waterproof coating and its preparation method Effective date of registration: 20230210 Granted publication date: 20201106 Pledgee: Yuexiu sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: GUANGZHOU LUBAN CONSTRUCTION TECHNOLOGY GROUP CO.,LTD. Registration number: Y2023980032421 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20201106 Pledgee: Yuexiu sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: GUANGZHOU LUBAN CONSTRUCTION TECHNOLOGY GROUP CO.,LTD. Registration number: Y2023980032421 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A thixotropic waterborne modified asphalt waterproof coating and its preparation method Granted publication date: 20201106 Pledgee: Yuexiu sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: GUANGZHOU LUBAN CONSTRUCTION TECHNOLOGY GROUP CO.,LTD. Registration number: Y2024980012126 |