CN113136128B - Solvent-free elastic asphalt waterproof coating and preparation method thereof - Google Patents
Solvent-free elastic asphalt waterproof coating and preparation method thereof Download PDFInfo
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- CN113136128B CN113136128B CN202110279546.5A CN202110279546A CN113136128B CN 113136128 B CN113136128 B CN 113136128B CN 202110279546 A CN202110279546 A CN 202110279546A CN 113136128 B CN113136128 B CN 113136128B
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- 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
- C09D147/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Coating compositions based on derivatives of such polymers
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- 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
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- 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
- C09D7/63—Additives non-macromolecular organic
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- 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
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Abstract
The invention discloses a solvent-free elastic asphalt waterproof coating. The raw material formula of the asphalt waterproof coating comprises, by mass, 20-50% of low-polarity polyol, 1-10% of silane coupling agent containing isocyanate groups, 10-30% of petroleum asphalt, 20-50% of filler, 0.1-1% of catalyst and 1-10% of auxiliary agent. The solvent-free elastic asphalt waterproof coating does not need to use a plasticizer and can be constructed at normal temperature, and the formed coating layer has good elasticity and extensibility, has good bonding performance on a concrete base layer and the conventional waterproof roll, can improve the reliability of a waterproof structure, and has application value and market prospect.
Description
Technical Field
The invention belongs to the technical field of waterproof coatings, and particularly relates to a solvent-free elastic asphalt waterproof coating and a preparation method thereof.
Background
The asphalt has excellent anticorrosive and waterproof performance, wide source and low cost, and asphalt waterproof coiled materials and asphalt waterproof coatings occupy the leading position of building waterproof materials so far and play a very important role in the field of building waterproofing in China.
Asphalt waterproof coatings on the market are divided into two categories of water-based and oil-based according to different solvents. The oily asphalt waterproof paint on the market is divided into two categories of solvent volatilization type and hot melting type. The traditional asphalt-based waterproof coating is prepared by adding elastic rubbers such as SBS, SBR, SIS and the like to improve the high and low temperature resistance and elasticity of asphalt, so that the viscosity of the asphalt-based waterproof coating is obviously increased, a large amount of plasticizer and organic solvent are required to be added for reducing the viscosity to facilitate construction, the potential safety hazard of production and construction can be increased due to the existence of the solvent, and the environment can be polluted. The addition of plasticizers such as engine oil, naphthenic oil, aromatic oil and the like can cause the service life of the asphalt waterproof coating to be reduced, because the plasticizers in the asphalt waterproof coating can migrate out to pollute a base surface, so that the asphalt waterproof coating is hardened and delaminated from the base layer.
Disclosure of Invention
The invention aims to solve the technical problem of providing the solvent-free elastic asphalt waterproof coating which does not need to use a plasticizer and can be constructed at normal temperature.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a solvent-free elastic asphalt waterproof coating, which comprises, by mass, 20-50% of low-polarity polyol, 1-10% of silane coupling agent containing isocyanate groups, 10-30% of petroleum asphalt, 20-50% of filler, 0.1-1% of catalyst and 1-10% of auxiliary agent.
Preferably, the raw materials of the asphalt waterproof coating material consist of the low-polarity polyol, the silane coupling agent containing isocyanate groups, the petroleum asphalt, the filler, the catalyst and the auxiliary agent.
Preferably, the raw materials of the asphalt waterproof coating do not contain organic solvents and plasticizers.
Wherein, the low polarity polyol is a polyol compound which contains hydroxyl groups at both ends of a molecular chain and does not contain a polar group on a main chain.
Preferably, the low polarity polyol is one having a viscosity (40 ℃) of < 10Pa.s, polyol with number average molecular weight of 1000-6000 and hydroxyl value of 0.4-1 mmol/g.
According to a particular and preferred embodiment, the low polarity polyol is a hydroxyl terminated polybutadiene. Preferably, the hydroxyl-terminated polybutadiene has a number average molecular weight of 1000 to 6000, more preferably 2500 to 4500.
Preferably, the hydroxyl-terminated polybutadiene has an average functionality of 2 to 3.
The hydroxyl-terminated polybutadiene is also called HTPB polymer in the chemical industry, and finished products of the hydroxyl-terminated polybutadiene can be purchased from chemical markets, and are preferably HTPB-IV, HTPB-I, HTPB-II, HTPB-III and the like which are products of Yingkou Tianyuan chemical research institute, inc.
Further preferably, the silane coupling agent containing an isocyanate group is 3-isocyanatopropylmethyldimethoxysilane and/or 3-isocyanatopropyltrimethoxysilane.
Preferably, the mass ratio of the low-polarity polyol to the silane coupling agent containing an isocyanate group is 5 to 12.
The petroleum asphalt is petroleum asphalt meeting various indexes of the technical standard (GB/T15180).
Preferably, the petroleum asphalt is one or a combination of more of petroleum asphalt AH-70, AH-90, AH-110 and AH-130.
Preferably, the filler is one or a combination of several of talcum powder, kaolin, mica powder and calcium carbonate, wherein the calcium carbonate is superfine light calcium carbonate and/or heavy calcium carbonate.
Preferably, the catalyst is an organotin catalyst and/or a carboxylate catalyst.
Specifically, the catalyst includes, but is not limited to, one or a combination of several of dibutyl tin dilaurate, stannous octoate, or lead isooctanoate.
Preferably, the raw material formula of the asphalt waterproof coating also comprises an auxiliary agent with the feeding mass of 1-10% of the total mass of the raw material formula of the asphalt waterproof coating, wherein the auxiliary agent is one or more of an antioxidant, a dehydrating agent, an adhesion promoter and an anti-sagging agent.
Further preferably, the feeding mass of the antioxidant is 0.1-1% of the total mass of the raw material formula of the asphalt waterproof coating.
Further preferably, the feeding mass of the dehydrating agent is 0.1-1% of the total mass of the raw material formula of the asphalt waterproof coating;
further preferably, the feeding mass of the adhesion promoter is 0.5-2% of the total mass of the raw material formula of the asphalt waterproof coating;
further preferably, the feeding mass of the anti-sagging agent is 0.5-2% of the total mass of the raw material formula of the asphalt waterproof coating.
Further preferably, the antioxidant is one or a combination of several of a peroxide decomposition type antioxidant, a free radical scavenging type antioxidant and a metal deactivation type antioxidant.
Specifically, the antioxidant includes, but is not limited to, zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, N-phenyl-a-naphthylamine, alkyl thiophene oxazine, benzotriazole derivatives, and mercaptobenzothiazole derivatives.
Further preferably, the dehydrating agent is one or a combination of several of a molecular sieve, a silane coupling agent with vinyl, an aldimine moisture scavenger, a ketimine moisture scavenger and an oxazolidine moisture scavenger.
Specifically, the vinyl silane coupling agent is preferably vinyl trimethoxysilane, which undergoes a hydrolysis reaction.
Further preferably, the adhesion promoter is one or a combination of N- (2-aminoethyl) -3-aminopropyldimethoxysilane, N- (2-aminoethyl) -3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltrimethoxysilane and N- (2-aminoethyl) -3-aminopropyltriethoxysilane.
Further preferably, the anti-sagging agent is a macromolecular compound containing a polyurea structure.
Specifically, the finished product of the macromolecular compound containing the polyurea structure can be purchased from chemical markets, and is preferably RHEOBYK-410 or RHEOBYK-7410ET which are products of Bike chemical Co., ltd.
According to one embodiment, the raw material formula of the asphalt waterproof coating comprises the following components in percentage by mass:
further preferably: the asphalt waterproof coating comprises the following raw materials in percentage by mass:
the second aspect of the invention also provides a preparation method of the asphalt waterproof coating, which comprises the following specific steps:
adding the petroleum asphalt, the low-polarity polyol and the filler into a reaction vessel for mixing, heating to 130-140 ℃, and dehydrating a material system;
cooling to 70-90 ℃, adding the silane coupling agent containing isocyanate groups and the catalyst into the dehydrated material system for reaction to obtain a reacted mixture;
and cooling to 60 ℃ or below, adding an auxiliary agent into the reacted mixture, and uniformly mixing to obtain the asphalt waterproof coating.
Specifically, the preparation method comprises the following steps:
adding petroleum asphalt into a stirring reaction kettle, heating to 120-140 ℃, adding an antioxidant, low-polarity polyol and a filler, stirring and mixing uniformly, and dehydrating the materials in vacuum for 2 hours at 130-140 ℃ and under the pressure of-0.1 to-0.05 MPa;
releasing vacuum with nitrogen, cooling to 70-90 ℃, adding a silane coupling agent containing isocyanate groups and a catalyst, and reacting for 2-3 hours while stirring at a constant temperature;
cooling to 60 ℃ or below, adding a dehydrating agent, an anti-sagging agent and an adhesion promoter, and stirring for 20-30min to obtain the solvent-free elastic asphalt waterproof coating.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the solvent-free elastic asphalt waterproof coating does not need to use a plasticizer and can be constructed at normal temperature, and the formed coating layer has good elasticity and extensibility, has good bonding performance to a concrete base layer and the existing waterproof coiled material, can improve the reliability of a waterproof structure, and has application value and market prospect.
Detailed Description
According to the asphalt waterproof coating, the low-polarity polyol and the silane coupling agent containing the isocyanate group are condensed to form the siloxane-terminated siloxane compound, so that on one hand, the siloxane compound is cured by moisture in the air when the coating is applied, and the coating system is endowed with good elasticity and extensibility; on the other hand, the adopted low-polarity polyol, such as hydroxyl-terminated polybutadiene (the number average molecular weight is 1000-6000), has proper viscosity and good dispersibility for asphalt at normal temperature, can control the viscosity of a system and the dispersibility of the asphalt under the condition of not adding any solvent or plasticizer, can be directly constructed at normal temperature, and has a simpler and more convenient construction mode, and is more environment-friendly and safer. In addition, the asphalt waterproof coating has good bonding performance to low-polarity waterproof coiled materials and concrete base layers, and can greatly improve the reliability, durability and waterproof effect of a waterproof structure when used in the waterproof structure. Furthermore, the asphalt waterproof coating is a single-component product, is easy to obtain raw materials, simple in preparation method, suitable for industrial large-scale production, and convenient to package and transport.
The present invention will be further described with reference to the following examples. However, the present invention is not limited to the following examples. The implementation conditions adopted in the embodiments can be further adjusted according to different requirements of specific use, and the implementation conditions not mentioned are conventional conditions in the industry. The technical features according to the embodiments of the present invention may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides an asphalt waterproof coating and a preparation method thereof.
The asphalt waterproof coating comprises the following raw materials in parts by weight: 40 parts of low-polarity polyol (brand HTPB-IV, number average molecular weight 3000, yingkou Tianyuan chemical research institute Co., ltd.), 15 parts of petroleum asphalt 90 parts, 6 parts of silane coupling agent containing isocyanate groups (3-isocyanate propyl methyl dimethoxy silane, brand T-02, huaian Hongmeng new material Co., ltd.), 36 parts of talcum powder (brand HS218, haichi New Guanyuan powder material Co., ltd.), 0.3 part of antioxidant (brand 1010, beijing Yinghua chemical Co., ltd.), 0.2 part of catalyst (T-12, jiangsu Mingtai chemical Co., ltd.), 0.5 part of dehydrating agent (SCA-V71T vinyl methyl dimethoxy silane, nanjing Needu new material technology Co., ltd.), 1 part of adhesion promoter (SCA-A20T, nanjing Needu technology Co., ltd.), and 1 part of anti-sagging agent (RHEYEOK-410, germany new material technology Co., ltd.).
The preparation process of the asphalt waterproof coating comprises the following steps:
the first step is as follows: heating the jacket oil in the reaction kettle to 130 ℃, and adding the hot-melt petroleum asphalt, the low-polarity polyol and the talcum powder into the reaction kettle;
the second step is that: dewatering and stirring for 2 hours under the pressure of-0.08 MPa and the temperature of 130-140 ℃;
the third step: introducing nitrogen, relieving negative pressure, cooling to 80 ℃, adding a silane coupling agent containing isocyanate groups and a catalyst, and stirring and mixing for 2 hours at the temperature of 80-85 ℃;
the fourth step: cooling to 60 deg.C, adding dehydrating agent, adhesion promoter and anti-sagging agent, stirring for 20min, discharging and packaging.
Example 2
This example provides an asphalt waterproofing paint and a method for preparing the same, which is prepared by the same method as example 1.
The asphalt waterproof coating comprises the following raw materials in parts by weight: 40 parts of low-polarity polyol (brand HTPB-IV, number average molecular weight 3000, yingkou Tianyuan chemical research institute, co., ltd.), 15 parts of petroleum asphalt 90 parts, 6.5 parts of silane coupling agent containing isocyanate groups (3-isocyanate propyl trimethoxy silane, brand T-03, huaian Hongtian New Material Co., ltd.), 35.5 parts of calcium carbonate (brand GY-216, haichi New Guangyuan powder Material Co., ltd.), 0.3 part of antioxidant (brand 618, beijing Yinghua chemical Co., ltd.), 0.2 part of catalyst (T-12, jiangsu Tai chemical Co., ltd.), 0.5 part of dehydrating agent (V71T vinyl methyl dimethoxy silane, nanjing Nenengde New Material technology Co., ltd.), 1 part of adhesion promoter (SCA-A20T, nanjing Nenene De technology Co., ltd.), and 1 part of anti-sagging agent (RHEYEK-430, germany Bingke chemistry).
Example 3
This example provides an asphalt waterproofing paint and a method for preparing the same, which is prepared by the same method as example 1.
The asphalt waterproof coating comprises the following raw materials in parts by weight: 40 parts of low-polarity polyol (brand HTPB-I, number average molecular weight of 4200, yingkou Tianyuan chemical research institute Co., ltd.), 15 parts of 100 parts of petroleum asphalt, 4 parts of silane coupling agent containing isocyanate groups (3-isocyanatopropyl methyl dimethoxysilane, brand T-02, huaian Hongtian New Material Co., ltd.), 38 parts of talcum powder (brand HS218, haichi New Guanyuan powder Material Co., ltd.), 0.3 parts of antioxidant (brand 1010, beijing Yinghua chemical Co., ltd.), 0.2 part of catalyst (T-12, jiangsu Tai chemical Co., ltd.), 0.5 part of dehydrating agent (LH-103 oxazolidine, suzhou nonspecific brother New Material science Co., ltd.), 1 part of adhesion promoter (SCA-A20M, nanjing Needu technology Co., ltd.), and 1 part of pendant anti-flow agent (RHEOBBYK-410, germany Bik chemical).
Comparative example 1
The comparative example provides a non-cured rubber asphalt waterproof coating meeting JC/T2428-2017 index and a preparation method thereof.
The non-cured rubber asphalt waterproof coating comprises the following raw materials in parts by weight: 30 parts of No. 90 petroleum asphalt, 32 parts of No. 5 naphthenic oil, 2 parts of SBS modifier, 6 parts of SBR modified rubber powder, 2 parts of asphalt high-temperature modifier (high-temperature wax) and 28 parts of stone powder.
The preparation process of the non-cured rubber asphalt waterproof coating comprises the following steps:
the first step is as follows: heating the sleeve oil in the reaction kettle to 140 ℃, and adding hot-melt petroleum asphalt and naphthenic oil into the reaction kettle;
the second step is that: adding SBS and SBR, continuing heating, controlling the temperature at 180-190 ℃, and stirring for 3 hours;
the third step: adding asphalt high-temperature modifier, stirring and mixing for 1 hour at 180-190 ℃;
the fourth step: adding stone powder, stirring and mixing for 1 hour at 180-190 ℃, discharging and packaging.
The main performance indexes of the asphalt waterproof coatings of the examples 1 to 3 and the comparative example 1 were tested, and after the asphalt waterproof coatings of the examples 1 to 3 and the comparative example 1 were coated on a TPO waterproof roll, a modified asphalt waterproof roll, and a concrete substrate at the construction temperatures of table 1 to form an asphalt waterproof coating layer (1.5 mm), the peel strength of the asphalt waterproof coating layer from the TPO waterproof roll, the modified asphalt waterproof roll, and the concrete substrate was tested. See table 1 for test methods and test results. The heat aging treatment conditions were: the sample was placed in a constant temperature oven at 70 ℃ for 336h.
TABLE 1
Note: the coating thickness was 1.5mm.
As can be seen from Table 1: the asphalt waterproof coating for buildings has high solid content and large extension, and the bonding performance with concrete and waterproof coiled materials is obviously superior to that of the comparative example 1. The low-polarity polyol modified asphalt is adopted, the system viscosity is low, so that an organic solvent and/or a plasticizer are not needed, the coating can be directly applied by blade coating, brush coating or roller coating at normal temperature, the product is green and environment-friendly, and the construction safety is high. In the comparative example 1, SBS, SBR and SIS are adopted for modification, high-temperature hot melting is needed during construction, the hot melting temperature exceeds 100 ℃, potential safety hazards exist in construction, in order to reduce the viscosity of the product, a large amount of naphthenic oil serving as a plasticizer is added, and the service life of the product is shortened due to easy migration of the plasticizer.
The present invention has been described in detail in order to enable those skilled in the art to understand the invention and to practice it, and it is not intended to limit the scope of the invention, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.
Claims (8)
1. A solvent-free elastic asphalt waterproof coating is characterized in that: the raw material formula of the asphalt waterproof coating does not contain an organic solvent and a plasticizer, and comprises, by mass, 20-50% of a low-polarity polyol, 1-10% of a silane coupling agent containing isocyanate groups, 10-30% of petroleum asphalt, 20-50% of a filler, 0.1-1% of a catalyst and 1-10% of an auxiliary agent; the low-polarity polyol is hydroxyl-terminated polybutadiene, the number average molecular weight of the hydroxyl-terminated polybutadiene is 1000-6000, and the average functionality is 2-3.
2. The asphalt waterproofing coating according to claim 1, characterized in that: the raw materials of the asphalt waterproof coating comprise the low-polarity polyol, the silane coupling agent containing isocyanate groups, the petroleum asphalt, the filler, the catalyst and the auxiliary agent.
3. The asphalt waterproofing coating according to claim 1 or 2, characterized in that: the silane coupling agent containing isocyanate groups is 3-isocyanatopropyl methyl dimethoxy silane and/or 3-isocyanatopropyl trimethoxy silane.
4. The asphalt waterproofing coating according to claim 1 or 2, characterized in that: the charging mass ratio of the low-polarity polyol to the silane coupling agent containing isocyanate groups is 5-12.
5. The asphalt waterproofing coating according to claim 1 or 2, characterized in that: the petroleum asphalt is one or a combination of more of petroleum asphalt No. 70, no. 90, no. 100, no. 150 and No. 200; the filler is one or a combination of more of talcum powder, kaolin, mica powder and calcium carbonate; the catalyst is an organic tin catalyst and/or a carboxylate catalyst; the auxiliary agent is one or more of an antioxidant, a dehydrating agent, an adhesion promoter and an anti-sagging agent.
6. The asphalt waterproofing coating according to claim 5, characterized in that: the feeding mass of the antioxidant is 0.1-1% of the total mass of the raw material formula of the asphalt waterproof coating; the feeding mass of the dehydrating agent is 0.1-1% of the total mass of the raw material formula of the asphalt waterproof coating; the feeding mass of the adhesion promoter is 0.5-2% of the total mass of the raw material formula of the asphalt waterproof coating; the feeding mass of the anti-sagging agent is 0.5-2% of the total mass of the raw material formula of the asphalt waterproof coating.
7. The asphalt waterproofing coating according to claim 6, characterized in that: the antioxidant is one or a combination of several of peroxide decomposition type antioxidant, free radical scavenging type antioxidant and metal deactivation type antioxidant; the dehydrating agent is one or a combination of more of a molecular sieve, a silane coupling agent with vinyl, an aldimine moisture scavenger, a ketimine moisture scavenger and an oxazolidine moisture scavenger; the adhesion promoter is one or a combination of more of N- (2-aminoethyl) -3-aminopropyldimethoxysilane, N- (2-aminoethyl) -3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltrimethoxysilane and N- (2-aminoethyl) -3-aminopropyltriethoxysilane; the anti-sagging agent is a macromolecular compound containing a polyurea structure.
8. A method for preparing the asphalt waterproofing paint according to any one of claims 1 to 7, wherein the method specifically comprises the following steps:
adding the petroleum asphalt, the low-polarity polyol and the filler into a reaction vessel for mixing, heating to 130-140 ℃, and dehydrating a material system;
cooling to 70-90 ℃, adding the silane coupling agent containing the isocyanate group and the catalyst into the dehydrated material system for reaction to obtain a reacted mixture;
and cooling to 60 ℃ or below, adding an auxiliary agent into the reacted mixture, and uniformly mixing to obtain the asphalt waterproof coating.
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| CN202110279546.5A CN113136128B (en) | 2021-03-16 | 2021-03-16 | Solvent-free elastic asphalt waterproof coating and preparation method thereof |
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| JPH08311349A (en) * | 1995-05-19 | 1996-11-26 | Toyo Tire & Rubber Co Ltd | Asphalt binder composition for pavement and road-paving material for water-draining road using the same |
| US9221996B2 (en) * | 2011-11-30 | 2015-12-29 | Basf Se | Process for repairing road surfacing systems, in particular for open-pore asphalts |
| CN105038686A (en) * | 2015-07-09 | 2015-11-11 | 溧阳康达威实业有限公司 | Modified polyurethane asphalt adhesive and methods for preparing and using same |
| CN108047950A (en) * | 2017-11-21 | 2018-05-18 | 广西武宣金牌防水材料科技有限公司 | Flame-retardant polyurethane modified waterproof asphalt material and preparation method thereof |
| CN109111771A (en) * | 2018-05-31 | 2019-01-01 | 烟台德邦科技有限公司 | A kind of moisture cured high reliability UV conformal coating and preparation method thereof |
| CN110016290B (en) * | 2019-03-15 | 2021-03-23 | 河北宇阳泽丽防水材料有限公司 | Normal-temperature rapid-reaction type non-cured rubber asphalt waterproof coating and application thereof |
| CN110760264B (en) * | 2019-09-29 | 2021-10-22 | 江苏凯伦建材股份有限公司 | Asphalt polyurethane waterproof coating suitable for cement base layer and preparation method and application thereof |
| CN111334103B (en) * | 2020-02-19 | 2021-11-19 | 雨中情防水技术集团股份有限公司 | Non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature |
| CN111548734A (en) * | 2020-05-27 | 2020-08-18 | 潍坊石花化工建材有限公司 | Normal-temperature construction type non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN113107102B (en) * | 2021-03-16 | 2023-01-24 | 苏州正硅防水科技有限公司 | Building waterproof structure |
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| CN113897110A (en) | 2022-01-07 |
| CN113897110B (en) | 2022-07-12 |
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Effective date of registration: 20230807 Address after: Suzhou City, Jiangsu province 215008 Guangji Road No. 284 Patentee after: China building materials Suzhou waterproofing Research Institute Co.,Ltd. Address before: 215151 No.169 Anyang Road, Hushuguan, high tech Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU SINOMA DESIGN AND RESEARCH INSTITUTE OF NON-METALLIC MINERALS INDUSTRY CO.,LTD. |