CN115466571B - Water-based asphalt-based waterproof paint and preparation method thereof - Google Patents
Water-based asphalt-based waterproof paint and preparation method thereof Download PDFInfo
- Publication number
- CN115466571B CN115466571B CN202210879860.1A CN202210879860A CN115466571B CN 115466571 B CN115466571 B CN 115466571B CN 202210879860 A CN202210879860 A CN 202210879860A CN 115466571 B CN115466571 B CN 115466571B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- parts
- stirring
- water
- waterproof paint
- 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
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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
-
- 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
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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 belongs to the field of waterproof paint, and discloses a water-based asphalt-based waterproof paint and a preparation method thereof. The waterproof paint comprises the following components: asphalt, anti-rutting master batches, petroleum resin, fischer-Tropsch wax, organic montmorillonite clay, anionic emulsifier, water, polystyrene butyl acrylate emulsion, silica sol, dispersing agent, pH regulator, silane coupling agent, heavy calcium carbonate, styrene-butadiene latex and other auxiliary agents. The invention improves the heat resistance, high-temperature shear strength and water resistance of the water-based asphalt-based waterproof coating, and when the water-based asphalt-based waterproof coating is used as a waterproof coating for roads and bridges, the bonding strength between the water-based asphalt-based waterproof coating and a cement base layer and an asphalt surface layer is improved by 200%, the shear strength at 50 ℃ is improved by 300%, and the shear strength at 70 ℃ is improved by 400%.
Description
Technical Field
The invention belongs to the field of waterproof coatings, and in particular relates to a water-based asphalt-based waterproof coating and a preparation method thereof.
Background
The waterproof paint for roads and bridges in the market has the problems of low bonding strength with a cement base layer and an asphalt surface layer, insufficient high-temperature shear strength and poor water resistance, and specifically: the non-asphalt-based rigid waterproof coating has excellent high-temperature performance, but is easy to crack at low temperature, and has insufficient bonding strength with an asphalt surface layer; the asphalt-based waterproof paint has insufficient shearing strength under the action of high temperature, and is easy to generate interlayer shearing damage; waterborne asphalt-based waterproof coatings tend to have poor water resistance, resulting in a decrease in their strength after prolonged immersion.
According to market research, the main failure modes of the road and bridge waterproof coating are bonding failure and shear pushing damage under the action of high temperature (the road surface temperature exceeds 60 ℃) heavy load, so that a new modified system asphalt-based waterproof coating for the road and bridge is needed to be proposed.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides a water-based asphalt-based waterproof coating and a preparation method thereof. The invention improves the heat resistance, high-temperature shear strength, high-temperature bonding strength and water resistance of the water-based asphalt-based waterproof coating, and when the water-based asphalt-based waterproof coating is used as a waterproof coating for roads and bridges, the bonding strength between the water-based asphalt-based waterproof coating and a cement base layer and an asphalt surface layer is improved by 200%, the shear strength of a combined structure at 50 ℃ is improved by 300%, and the high-temperature shear strength at 70 ℃ is improved by 400%.
In order to achieve the above object, the first aspect of the present invention provides an aqueous asphalt-based waterproof paint comprising the following components:
asphalt, anti-rutting master batches, petroleum resin, fischer-Tropsch wax, organic montmorillonite clay, anionic emulsifier, water, polystyrene butyl acrylate emulsion, silica sol, dispersing agent, pH regulator, silane coupling agent, heavy calcium carbonate, styrene-butadiene latex and other auxiliary agents.
According to the present invention, preferably, the waterproof paint comprises the following components in parts by weight: 20-30 parts of asphalt, 1-8 parts of anti-rutting master batch, 1-5 parts of petroleum resin, 0.5-5 parts of Fischer-Tropsch wax, 5-10 parts of organic montmorillonite clay, 0.5-2.5 parts of anionic emulsifier, 20-30 parts of water, 3-12 parts of polystyrene butyl acrylate emulsion, 5-12 parts of silica sol, 0.1-0.5 part of dispersing agent, 0.1-1 part of pH regulator, 0.1-0.5 part of silane coupling agent, 1-5 parts of heavy calcium carbonate, 15-30 parts of styrene-butadiene latex and 0.1-3 parts of other auxiliary agents.
Further preferably, the waterproof coating comprises the following components in parts by weight: 22-30 parts of asphalt, 2-8 parts of anti-rutting master batch, 1-4 parts of petroleum resin, 1-5 parts of Fischer-Tropsch wax, 7-10 parts of organic montmorillonite clay, 0.5-2.5 parts of anionic emulsifier, 20-30 parts of water, 3-10 parts of polystyrene butyl acrylate emulsion, 5-12 parts of silica sol, 0.1-0.5 part of dispersing agent, 0.1-1 part of pH regulator, 0.1-0.5 part of silane coupling agent, 1-5 parts of heavy calcium carbonate, 15-30 parts of styrene-butadiene latex and 0.1-3 parts of other auxiliary agents.
According to the present invention, preferably, the asphalt is 70#a grade petroleum asphalt, preferably at least one of genibo 70#a grade petroleum asphalt, medium petrochemical 70#a grade petroleum asphalt, and medium petroleum 70#a grade petroleum asphalt.
In the invention, the anti-rutting master batch can improve the viscosity of the modified asphalt so as to further improve the high-temperature shearing resistance of the waterproof coating.
In the present invention, the petroleum resin is a tackifying effect, and may be mixed with other components to enhance the high temperature shear resistance of the waterproof coating and to enhance the compatibility of the components, and according to the present invention, preferably, the petroleum resin is at least one of a C9 petroleum resin, a coumarone resin and a terpene resin.
According to the present invention, preferably, the anionic emulsifier is at least one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, and sodium dodecyl polyoxyethylene ether sulfate.
According to the present invention, preferably, the silica content in the silica sol is 20 to 45%, the silica particle diameter is 5 to 10nm, and the pH of the silica sol is 8 to 11.
According to the present invention, preferably, the silane coupling agent is γ -glycidoxypropyl trimethoxysilane and/or N- β - (aminoethyl) - γ -aminopropyl trimethoxysilane.
According to the present invention, preferably, the heavy calcium carbonate has a particle size of 700 to 900 mesh.
According to the invention, preferably, the other auxiliary agents comprise the following components in parts by weight: 0.1-0.4 part of film forming auxiliary agent, 0.1-0.5 part of defoaming agent and 0.5-2 parts of thickening agent.
According to the present invention, preferably, the film forming aid is at least one of dodecanol ester, ethylene glycol butyl ether and hexanediol butyl ether acetate.
According to the present invention, preferably, the antifoaming agent is at least one of a polydimethylsiloxane antifoaming agent, a polyether-modified silicon antifoaming agent, and a mineral oil antifoaming agent.
According to the present invention, preferably, the thickener is at least one of a hydrophobic modified alkali-soluble emulsion thickener, hydroxyethyl cellulose, and a polyacrylate thickener.
The second aspect of the invention provides a method for preparing the water-based asphalt-based waterproof paint, which comprises the following steps:
s1: preparation of modified asphalt: heating and melting the asphalt to a flowing state to obtain melted asphalt; mixing and stirring the molten asphalt, the anti-rutting master batch, the petroleum resin, the Fischer-Tropsch wax and the organic montmorillonite clay to obtain the modified asphalt;
s2: preparation of soap solution: mixing and stirring the anionic emulsifier and water to obtain the soap solution;
s3: preparation of emulsified asphalt: mixing the modified asphalt with the soap solution, and dispersing and emulsifying to obtain emulsified asphalt;
s4: preparation of silica sol-polystyrene butyl acrylate blending modified emulsion: mixing and stirring the polystyrene butyl acrylate emulsion, a pH regulator, silica sol, a dispersing agent and a silane coupling agent to obtain the silica sol-polystyrene butyl acrylate blending modified emulsion;
s5: preparation of the water-based asphalt-based waterproof paint: and mixing and stirring the emulsified asphalt, the dispersing agent, the pH regulator, the heavy calcium carbonate, the silica sol-polystyrene butyl acrylate blending modified emulsion, the styrene-butadiene latex and other auxiliary agents to obtain the water-based asphalt-based waterproof coating.
In the invention, the styrene-butadiene latex can improve the low-temperature performance, elongation at break and heat resistance of the waterproof coating, and the heavy calcium carbonate can improve the tensile strength of the waterproof coating and reduce the cost.
According to the present invention, preferably, in step S1:
heating and melting the asphalt to a flowing state at 150-170 ℃;
the stirring time is 20-60min, the stirring speed is 400-1200r/min, and the stirring temperature is 160-180 ℃.
In the present invention, as a preferred embodiment, the preparation of the modified asphalt of step S1 comprises: heating and melting the asphalt to a flowing state to obtain melted asphalt; mixing and stirring the molten asphalt, the anti-rutting master batch, the petroleum resin and the Fischer-Tropsch wax for 20-40min at the rotating speed of 400-800r/min to obtain a first mixture; and mixing and stirring the first mixture and the organic montmorillonite, keeping the rotating speed at 600-1200r/min and the temperature at 160-180 ℃ to obtain the modified asphalt.
According to the present invention, preferably, in step S2, the stirring time is 8 to 12min and the stirring temperature is 55 to 65 ℃.
According to the present invention, preferably, in step S3, the temperature of the modified asphalt is 130 to 160 ℃ and the temperature of the soap solution is 55 to 65 ℃.
According to the present invention, preferably, in step S4:
adding the pH regulator to regulate the pH of the silica sol-polystyrene butyl acrylate blending modified emulsion to 9-11;
the stirring time is 10-80min, and the stirring speed is 400-800r/min.
In the invention, as a preferable scheme, the preparation of the silica sol-polystyrene butyl acrylate blending modified emulsion in the step S4 comprises the following steps: firstly, mixing and stirring the polystyrene butyl acrylate emulsion and a pH regulator, regulating the pH to 9-11, and stirring at the speed of 400-600r/min to obtain a second mixture; mixing and stirring the second mixture, the silica sol and the dispersing agent for 20-40min at the stirring speed of 600-800r/min to obtain a third mixture; and mixing and stirring the third mixture and the silane coupling agent for 15-30min to obtain the silica sol-polystyrene butyl acrylate blending modified emulsion.
According to the present invention, preferably, in step S5:
adding the pH regulator to regulate the pH of the water-based asphalt-based waterproof paint to 9-11;
the stirring time is 10-200min, and the stirring speed is 300-1200r/min;
in the present invention, as a preferred embodiment, step S5 includes:
firstly, mixing and stirring the emulsified asphalt and the dispersing agent for 15-30min at the stirring speed of 300-500r/min to obtain a fourth mixture; stirring the fourth mixture with a pH regulator for 5min, and regulating the pH to 9-11 to obtain a fifth mixture;
mixing and stirring the fifth mixture and heavy calcium carbonate for 30-40min at a stirring rate of 400-800r/min to obtain a sixth mixture; mixing and stirring the sixth mixture, the silica sol-polystyrene butyl acrylate blending modified emulsion and the styrene-butadiene latex for 15-30min at the stirring speed of 600-800r/min to obtain a seventh mixture;
mixing and stirring the seventh mixture, the film forming auxiliary agent and the defoaming agent for 5-10min at the stirring speed of 600-800r/min to obtain an eighth mixture; and mixing and stirring the eighth mixture and the thickener for 20-40min at the stirring speed of 700-1100r/min to obtain the water-based asphalt-based waterproof coating.
According to the present invention, preferably, the ratio of the amount of the pH adjuster in step S4 to the amount of the pH adjuster in step S5 is 1: (1-1.5).
According to the present invention, preferably, the ratio of the dispersant in step S4 to the dispersant in step S5 is 1: (1-1.5).
In the present invention, the dispersing agent can fully wet and uniformly disperse the powder phase in the waterproof paint by the liquid phase, and minimize the separation, aggregation and sedimentation speed of solid particles of the system so as to maintain the maximum dynamic stability of the waterproof paint.
The technical scheme of the invention has the following beneficial effects:
(1) The adhesive strength of the water-based asphalt-based waterproof paint is improved by 200%, the shearing strength at 50 ℃ is improved by 300%, the shearing strength at 70 ℃ is improved by 400% and exceeds the existing standard requirement by 200%, wherein the shearing strength at 70 ℃ is more than 0.15MPa, and the material cannot generate shearing transition diseases at extremely high temperature on the road surface. Meanwhile, the water resistance of the water-based asphalt-based waterproof paint is obviously improved, the material salt treatment quality is increased to be close to 0, and the reduction of the amplitude is more than 85%.
(2) The invention adopts a brand new compound mixed emulsion modification system of silica sol-polystyrene butyl acrylate blending modification emulsion to replace the existing neoprene latex system. The silica sol is a colloidal solution of silica colloid particles dispersed in water, after water is evaporated, firm Si-O bonds can be formed, the Si-O bonds can be larger, and the performances of heat resistance, tensile strength and the like of the coating can be improved. Meanwhile, the silica sol permeates into the cement base layer and can react with calcium hydroxide in the concrete base layer to generate calcium silicate, so that the bonding strength of the coating can be enhanced. After the silica sol is blended with the polystyrene butyl acrylate emulsion, the film forming property and the low-temperature toughness of the coating can be further improved. The silane coupling agent is added in the preparation of the silica sol-polystyrene butyl acrylate blending modified emulsion, one end of the silane coupling agent is hydrolyzed and can form a chemical bond with hydrogen bond in the silica particles, and the other end of the silane coupling agent is interacted with a long molecular chain in the polystyrene butyl acrylate emulsion, so that the inorganic material such as the silica sol is coupled with the polystyrene butyl acrylate emulsion, and the performances such as adhesive strength, water resistance, tensile strength and the like of the material are further improved.
(3) The invention adopts organic montmorillonite as modified filler to replace the existing filler such as heavy calcium or talcum powder and the like as main filler. The Mongolian clay is used as a layered hydrous aluminosilicate mineral with the morphology of 2:1, the structural unit of the Mongolian clay is formed by sandwiching 1 layer of Al-O octahedron by 2 layers of Si-O tetrahedrons, the thickness of the lamellar layer is about 1nm, the length and the width of the lamellar layer are about 100nm, the lamellar layers are connected by weak Van der Waals force or electrostatic effect, the lattice arrangement is highly ordered, and the interlayer is not easy to slip. The polymer (the high polymer particles of the waterproof coating, the silica sol-polystyrene butyl acrylate blending modified emulsion and the high polymer particles therein) can be intercalated, so that the high temperature resistance and the ageing resistance of the waterproof coating are improved. The organized montmorillonite is lipophilic, the interlayer distance can be increased, the polymer intercalation is easier, the high temperature resistance and the ageing resistance are improved more obviously, and meanwhile, the water resistance of the waterproof coating can be improved obviously due to the oleophilic hydrophobicity.
(4) The invention adopts the rut-resistant master batch to further improve the viscosity of asphalt so as to improve the high-temperature shearing resistance of the waterproof paint. The main components of the anti-rutting master batch used in the invention are natural asphalt and Low Density Polyethylene (LDPE). The natural asphalt has high asphalt content, and is mixed with mineral matters in certain proportion, and has softening point far higher than that of petroleum asphalt, so that it may be mixed with asphalt to raise the high temperature resistance of waterproof paint. The low-density polyethylene (LDPE) is uniformly dispersed in asphalt through swelling of light components of the asphalt, and can be used as high-molecular long-chain unsaturated olefin, so that the high-temperature resistance of the waterproof coating can be obviously improved.
(5) The invention adopts Fischer-Tropsch wax to further improve the viscosity of asphalt so as to improve the high-temperature shearing resistance of the waterproof coating, the Fischer-Tropsch wax mainly comprises straight-chain and saturated alkane with the relative molecular mass of 500-1000, has good compatibility with asphalt, forms a lattice structure in the asphalt when the temperature is lower than the melting point, and can improve the high-temperature resistance of the waterproof coating due to the high-crystallinity and high-linearity structure.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the following examples;
the anti-rut master batch is a medium petrochemical anti-rut master batch;
the organic montmorillonite is Feng Hong DK2 nanometer organic montmorillonite;
the defoaming agent is a Dow AFE-1410 polydimethylsiloxane defoaming agent;
the thickener is ACRYSONLTMTT-935 hydrophobic modified alkali soluble emulsion thickener;
the pH regulator is a Dow pH regulator AMP-95;
the dispersing agent is SN5040;
the silica sol is a Shandong Baite new material SS3010 silica sol.
Example 1
The embodiment provides a water-based asphalt-based waterproof coating, which comprises the following components in parts by weight:
25 parts of 70# A grade petroleum asphalt, 6 parts of anti-rutting master batch, 2 parts of C9 petroleum resin, 1 part of Fischer-Tropsch wax, 8 parts of organic montmorillonite clay, 0.5 part of sodium dodecyl sulfonate, 22 parts of deionized water, 8 parts of polystyrene butyl acrylate emulsion, 8 parts of silica sol, 0.2 part of dispersing agent, 0.1 part of pH regulator, 0.2 part of gamma-glycidyl ether oxypropyl trimethoxysilane, 3 parts of 800-mesh heavy calcium carbonate, 15 parts of styrene-butadiene latex, 0.2 part of ethylene glycol butyl ether, 0.2 part of defoamer and 0.6 part of thickener.
The preparation method of the water-based asphalt-based waterproof paint comprises the following steps:
s1: preparation of modified asphalt: heating and melting 70# A grade petroleum asphalt to a flowing state at 160 ℃ to obtain melted asphalt; mixing and stirring the molten asphalt, the anti-rutting master batch, the C9 petroleum resin and the Fischer-Tropsch wax for 25min at the rotating speed of 600r/min to obtain a first mixture; mixing and stirring the first mixture and the organic montmorillonite, keeping the rotating speed at 800r/min and the temperature at 170 ℃ to obtain the modified asphalt;
s2: preparation of soap solution: mixing and stirring sodium dodecyl sulfate and water for 10min at 60 ℃ to obtain the soap solution;
s3: preparation of emulsified asphalt: mixing the modified asphalt (155 ℃) with the soap solution (60 ℃) and dispersing and emulsifying by an emulsifying machine to obtain the emulsified asphalt;
s4: preparation of silica sol-polystyrene butyl acrylate blending modified emulsion: firstly, mixing and stirring the polystyrene butyl acrylate emulsion and the pH regulator at normal temperature, regulating the pH to 10, and stirring at the speed of 500r/min to obtain a second mixture; mixing and stirring the second mixture, the silica sol and the dispersing agent for 30min at the stirring speed of 700r/min to obtain a third mixture; mixing and stirring the third mixture and gamma-glycidol ether oxypropyl trimethoxy silane for 25min to obtain the silica sol-polystyrene butyl acrylate blending modified emulsion;
s5: preparation of the water-based asphalt-based waterproof paint:
firstly, mixing and stirring the emulsified asphalt and the dispersing agent for 25min at the stirring speed of 400r/min to obtain a fourth mixture; stirring the fourth mixture with a pH regulator for 5min, and regulating the pH to 10 to obtain a fifth mixture;
mixing and stirring the fifth mixture and 800-mesh heavy calcium carbonate for 35min at a stirring speed of 700r/min to obtain a sixth mixture; mixing and stirring the sixth mixture, the silica sol-polystyrene butyl acrylate blending modified emulsion and the styrene-butadiene latex for 18min at the stirring speed of 700r/min to obtain a seventh mixture;
mixing and stirring the seventh mixture, ethylene glycol butyl ether and a defoaming agent for 6min at the stirring speed of 700r/min to obtain an eighth mixture; and mixing and stirring the eighth mixture and the thickener for 30min at the stirring speed of 1000r/min to obtain the water-based asphalt-based waterproof coating.
The dosage ratio of the pH regulator in the step S4 to the pH regulator in the step S5 is 1:1, a step of;
the ratio of the dispersant in step S4 to the dispersant in step S5 was 1:1.
example 2
The embodiment provides a water-based asphalt-based waterproof coating, which comprises the following components in parts by weight:
30 parts of 70# A grade petroleum asphalt, 2 parts of anti-rutting master batch, 4 parts of C9 petroleum resin, 1 part of Fischer-Tropsch wax, 10 parts of organic montmorillonite clay, 0.5 part of sodium dodecyl sulfonate, 17 parts of deionized water, 10 parts of polystyrene butyl acrylate emulsion, 6 parts of silica sol, 0.3 part of dispersing agent, 0.1 part of pH regulator, 0.2 part of gamma-glycidyl ether oxypropyl trimethoxysilane, 3 parts of 800-mesh heavy calcium carbonate, 14 parts of styrene-butadiene latex, 0.2 part of dodecyl alcohol ester, 0.2 part of defoamer and 1.5 parts of thickener.
The preparation method of the water-based asphalt-based waterproof paint of this example is the same as that of example 1.
Example 3
The embodiment provides a water-based asphalt-based waterproof coating, which comprises the following components in parts by weight:
22 parts of 70# A grade petroleum asphalt, 4 parts of anti-rutting master batch, 3 parts of C9 petroleum resin, 3 parts of Fischer-Tropsch wax, 8 parts of organic montmorillonite clay, 0.4 part of dodecyl polyoxyethylene ether sodium sulfate, 26 parts of deionized water, 5 parts of polystyrene butyl acrylate emulsion, 9 parts of silica sol, 0.2 part of dispersing agent, 0.1 part of pH regulator, 0.25 part of gamma-glycidyl ether oxypropyl trimethoxysilane, 2 parts of 800-mesh heavy calcium carbonate, 16 parts of styrene-butadiene latex, 0.3 part of dodecanol ester, 0.2 part of defoamer and 0.55 part of thickener.
The preparation method of the water-based asphalt-based waterproof paint of this example is the same as that of example 1.
Comparative example 1
The comparative example provides a water-based asphalt-based waterproof coating, which accords with the formula materials and parameter ranges of the PB2 road bridge waterproof coating of the product currently sold in the market, and comprises the following components in parts by weight:
30 parts of 70# A grade petroleum asphalt, 0.4 part of sodium dodecyl sulfonate, 19 parts of deionized water, 0.3 part of dispersing agent, 20 parts of 800-mesh heavy calcium carbonate, 0.1 part of pH regulator, 30 parts of neoprene latex and 0.2 part of thickener 250 HBR.
Test case
This test example the aqueous asphalt-based waterproof coatings of examples 1 to 3 and comparative example 1 were tested according to the method of JC/T975-2005 road bridge waterproof coating, and the results are shown in Table 1.
TABLE 1
| Example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Heat resistance degree centigrade | 210℃ | 200℃ | 200℃ | 160℃ |
| Low temperature flexibility DEG C | -25℃ | -30℃ | -30℃ | -25℃ |
| Tensile strength MPa | 3.85 | 3.19 | 3.37 | 1.08 |
| Elongation at break% | 850 | 960 | 883 | 952 |
| Tensile Strength retention% | 97％ | 93％ | 95％ | 79％ |
| Mass increase of salt treatment | 0.3％ | 0.6％ | 0.6％ | 4.5％ |
| Coating and cement concrete bonding strength MPa | 1.56 | 1.52 | 1.56 | 0.56 |
| Shear Strength MPa at 50 DEG C | 0.58 | 0.53 | 0.52 | 0.15 |
| Bond strength MPa at 50 DEG C | 0.18 | 0.16 | 0.16 | 0.05 |
| Shear Strength MPa at 70 DEG C | 0.28 | 0.25 | 0.25 | 0.05 |
| Bond strength MPa at 70 DEG C | 0.06 | 0.06 | 0.07 | 0.02 |
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (13)
1. The water-based asphalt-based waterproof paint is characterized by comprising the following components in parts by weight:
20-30 parts of asphalt, 1-8 parts of medium petrochemical anti-rutting master batch, 1-5 parts of petroleum resin, 0.5-5 parts of Fischer-Tropsch wax, 5-10 parts of organic montmorillonite clay, 0.5-2.5 parts of anionic emulsifier, 20-30 parts of water, 3-12 parts of polystyrene butyl acrylate emulsion, 5-12 parts of silica sol, 0.1-0.5 part of dispersing agent, 0.1-1 part of pH regulator, 0.1-0.5 part of silane coupling agent, 1-5 parts of heavy calcium carbonate, 15-30 parts of styrene-butadiene latex and 0.1-3 parts of other auxiliary agents;
the preparation method of the water-based asphalt-based waterproof paint comprises the following steps:
s1: preparation of modified asphalt: heating and melting the asphalt to a flowing state to obtain melted asphalt; mixing and stirring the molten asphalt, the medium petrochemical anti-rutting master batch, petroleum resin, fischer-Tropsch wax and organic montmorillonite clay to obtain modified asphalt;
s2: preparation of soap solution: mixing and stirring the anionic emulsifier and water to obtain the soap solution;
s3: preparation of emulsified asphalt: mixing the modified asphalt with the soap solution, and dispersing and emulsifying to obtain emulsified asphalt;
s4: preparation of silica sol-polystyrene butyl acrylate blending modified emulsion: mixing and stirring the polystyrene butyl acrylate emulsion, a pH regulator, silica sol, a dispersing agent and a silane coupling agent to obtain the silica sol-polystyrene butyl acrylate blending modified emulsion;
s5: preparation of the water-based asphalt-based waterproof paint: and mixing and stirring the emulsified asphalt, the dispersing agent, the pH regulator, the heavy calcium carbonate, the silica sol-polystyrene butyl acrylate blending modified emulsion, the styrene-butadiene latex and other auxiliary agents to obtain the water-based asphalt-based waterproof coating.
2. The aqueous asphalt-based waterproof coating material according to claim 1, wherein the waterproof coating material comprises the following components in parts by weight:
22-30 parts of asphalt, 2-8 parts of medium petrochemical anti-rutting master batch, 1-4 parts of petroleum resin, 1-5 parts of Fischer-Tropsch wax, 7-10 parts of organic montmorillonite clay, 0.5-2.5 parts of anionic emulsifier, 20-30 parts of water, 3-10 parts of polystyrene butyl acrylate emulsion, 5-12 parts of silica sol, 0.1-0.5 part of dispersing agent, 0.1-1 part of pH regulator, 0.1-0.5 part of silane coupling agent, 1-5 parts of heavy calcium carbonate, 15-30 parts of styrene-butadiene latex and 0.1-3 parts of other auxiliary agents.
3. The aqueous asphalt-based waterproof paint according to claim 1 or 2, wherein,
the asphalt is 70#A grade petroleum asphalt;
the petroleum resin is C9 petroleum resin;
the anionic emulsifier is at least one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and sodium dodecyl polyoxyethylene ether sulfate;
the silica content in the silica sol is 20-45%, the silica particle size is 5-10nm, and the pH of the silica sol is 8-11;
the silane coupling agent is gamma-glycidol ether oxypropyl trimethoxy silane and/or N-beta- (aminoethyl) -gamma-aminopropyl trimethoxy silane;
the particle size of the heavy calcium carbonate is 700-900 meshes;
the other auxiliary agents comprise the following components in parts by weight: 0.1-0.4 part of film forming auxiliary agent, 0.1-0.5 part of defoaming agent and 0.5-2 parts of thickening agent.
4. The aqueous asphalt-based waterproof paint according to claim 3, wherein,
the film forming auxiliary agent is at least one of dodecanol ester, ethylene glycol butyl ether and hexanediol butyl ether acetate;
the defoaming agent is at least one of polydimethylsiloxane defoaming agent, polyether modified silicon defoaming agent and mineral oil defoaming agent;
the thickener is at least one of hydrophobic modified alkali-soluble emulsion thickener, hydroxyethyl cellulose and polyacrylate thickener.
5. The aqueous asphalt-based waterproof paint according to claim 1, wherein, in step S1:
heating and melting the asphalt to a flowing state at 150-170 ℃;
the stirring time is 20-60min, the stirring speed is 400-1200r/min, and the stirring temperature is 160-180 ℃.
6. The aqueous asphalt-based waterproof paint according to claim 1, wherein in step S2, the stirring time is 8-12min and the stirring temperature is 55-65 ℃.
7. The aqueous asphalt-based waterproof paint according to claim 1, wherein in step S3, the modified asphalt has a temperature of 130-160 ℃ and the soap solution has a temperature of 55-65 ℃.
8. The aqueous asphalt-based waterproof paint according to claim 1, wherein,
in step S4:
adding the pH regulator to regulate the pH of the silica sol-polystyrene butyl acrylate blending modified emulsion to 9-11;
the stirring time is 10-80min, and the stirring speed is 400-800r/min;
in step S5:
adding the pH regulator to regulate the pH of the water-based asphalt-based waterproof paint to 9-11;
the stirring time is 10-200min, and the stirring speed is 300-1200r/min;
the dosage ratio of the pH regulator in the step S4 to the pH regulator in the step S5 is 1: (1-1.5);
the ratio of the dispersant in step S4 to the dispersant in step S5 was 1: (1-1.5).
9. A method for preparing the aqueous asphalt-based waterproof paint as defined in any one of claims 1 to 8, characterized in that the method comprises the steps of:
s1: preparation of modified asphalt: heating and melting the asphalt to a flowing state to obtain melted asphalt; mixing and stirring the molten asphalt, the medium petrochemical anti-rutting master batch, petroleum resin, fischer-Tropsch wax and organic montmorillonite clay to obtain modified asphalt;
s2: preparation of soap solution: mixing and stirring the anionic emulsifier and water to obtain the soap solution;
s3: preparation of emulsified asphalt: mixing the modified asphalt with the soap solution, and dispersing and emulsifying to obtain emulsified asphalt;
s4: preparation of silica sol-polystyrene butyl acrylate blending modified emulsion: mixing and stirring the polystyrene butyl acrylate emulsion, a pH regulator, silica sol, a dispersing agent and a silane coupling agent to obtain the silica sol-polystyrene butyl acrylate blending modified emulsion;
s5: preparation of the water-based asphalt-based waterproof paint: and mixing and stirring the emulsified asphalt, the dispersing agent, the pH regulator, the heavy calcium carbonate, the silica sol-polystyrene butyl acrylate blending modified emulsion, the styrene-butadiene latex and other auxiliary agents to obtain the water-based asphalt-based waterproof coating.
10. The method for producing an aqueous asphalt-based waterproof paint according to claim 9, wherein, in step S1:
heating and melting the asphalt to a flowing state at 150-170 ℃;
the stirring time is 20-60min, the stirring speed is 400-1200r/min, and the stirring temperature is 160-180 ℃.
11. The method for producing an aqueous asphalt-based waterproof paint according to claim 9, wherein in step S2, the stirring time is 8 to 12 minutes and the stirring temperature is 55 to 65 ℃.
12. The method for preparing a water-based asphalt-based waterproof paint according to claim 9, wherein in step S3, the modified asphalt has a temperature of 130-160 ℃ and the soap solution has a temperature of 55-65 ℃.
13. The method for producing an aqueous asphalt-based waterproof paint according to claim 9, wherein,
in step S4:
adding the pH regulator to regulate the pH of the silica sol-polystyrene butyl acrylate blending modified emulsion to 9-11;
the stirring time is 10-80min, and the stirring speed is 400-800r/min;
in step S5:
adding the pH regulator to regulate the pH of the water-based asphalt-based waterproof paint to 9-11;
the stirring time is 10-200min, and the stirring speed is 300-1200r/min;
the dosage ratio of the pH regulator in the step S4 to the pH regulator in the step S5 is 1: (1-1.5);
the ratio of the dispersant in step S4 to the dispersant in step S5 was 1: (1-1.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210879860.1A CN115466571B (en) | 2022-07-25 | 2022-07-25 | Water-based asphalt-based waterproof paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210879860.1A CN115466571B (en) | 2022-07-25 | 2022-07-25 | Water-based asphalt-based waterproof paint and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115466571A CN115466571A (en) | 2022-12-13 |
| CN115466571B true CN115466571B (en) | 2023-07-14 |
Family
ID=84365920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210879860.1A Active CN115466571B (en) | 2022-07-25 | 2022-07-25 | Water-based asphalt-based waterproof paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115466571B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105273507A (en) * | 2014-07-12 | 2016-01-27 | 卢桂才 | Reactive waterproof coating |
| FR3045648B1 (en) * | 2015-12-22 | 2020-07-31 | Total Marketing Services | COMPOSITION OF SOLID BITUMEN AND ITS OBTAINING PROCESS |
| CN108285743B (en) * | 2017-12-29 | 2022-08-09 | 北京东方雨虹防水技术股份有限公司 | Water-emulsion asphalt waterproof coating for roads and bridges and preparation method thereof |
| CN110016291A (en) * | 2019-04-02 | 2019-07-16 | 河南驼峰防水科技有限公司 | A kind of uncured water-repellent paint of novel fire resistant and preparation method thereof |
| CN111748245A (en) * | 2020-08-13 | 2020-10-09 | 河北盛园防水材料有限公司 | Low-temperature-resistant polymer modified asphalt waterproof coating and preparation method thereof |
-
2022
- 2022-07-25 CN CN202210879860.1A patent/CN115466571B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115466571A (en) | 2022-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108285743B (en) | Water-emulsion asphalt waterproof coating for roads and bridges and preparation method thereof | |
| CN111363373B (en) | High-stability aqueous epoxy resin modified emulsified asphalt and preparation method thereof | |
| CN104449381A (en) | Composite emulsified asphalt waterproof coating and preparation method thereof | |
| CN101619149B (en) | Method for preparing cation emulsified rubber asphalt | |
| CN107010890B (en) | Environment-friendly polymer cement wall waterproof slurry and preparation method thereof | |
| CN109486421B (en) | Environment-friendly anti-slip ultrathin seal layer material and preparation method thereof | |
| CN104277462A (en) | Emulsified asphalt for ballastless track cement emulsified asphalt mortar and preparation method of emulsified asphalt | |
| CN111944424B (en) | Spraying rapid-hardening rubber asphalt waterproof coating and preparation and construction methods thereof | |
| CN114196274A (en) | Novel polymer cement waterproof coating and preparation method thereof | |
| CN115572544B (en) | Single-component water-based non-cured rubber asphalt waterproof paint, and preparation method and application thereof | |
| CN107987725A (en) | A kind of bridge floor waterproofing paint and its production method | |
| CN115466571B (en) | Water-based asphalt-based waterproof paint and preparation method thereof | |
| CN114605848A (en) | Polymer waterproof protective material for roads and bridges | |
| CN113150726B (en) | Carbon nano tube modified liquid waterproof coiled material and production process thereof | |
| CN112898595B (en) | Anionic emulsified asphalt and preparation method thereof | |
| CN110734593B (en) | Method for preparing emulsion polymerized styrene butadiene rubber from modified graphene | |
| CN108753100B (en) | Water-based epoxy concrete repairing interface agent and preparation method thereof | |
| CN113512359B (en) | Environment-friendly water-based calcium-resistant high-molecular liquid coiled material and preparation method thereof | |
| CN104592823A (en) | Bismuth nickelate nano-wire multifunctional paint | |
| CN114196324A (en) | Water-emulsion type rubber asphalt waterproof coating and preparation method thereof | |
| CN112778961B (en) | Environment-friendly adhesive for color anti-skid pavement and preparation method thereof | |
| CN108441113A (en) | A kind of Water-tight Agent Used in Asphalt Pavement | |
| CN102120888A (en) | Environmental-protection high-power liquid material for room-temperature asphalt surface course and preparation method thereof | |
| CN114874669A (en) | Energy-saving heat-preserving polymer modified asphalt waterproof coating and preparation method thereof | |
| CN110330270B (en) | Steel slag cold-patch material and preparation method thereof |
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 |