CN116622291A - High-viscosity anti-slip emulsified asphalt waterproof coating and preparation method thereof - Google Patents
High-viscosity anti-slip emulsified asphalt waterproof coating and preparation method thereof Download PDFInfo
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- CN116622291A CN116622291A CN202310868879.0A CN202310868879A CN116622291A CN 116622291 A CN116622291 A CN 116622291A CN 202310868879 A CN202310868879 A CN 202310868879A CN 116622291 A CN116622291 A CN 116622291A
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- Prior art keywords
- attapulgite
- emulsified asphalt
- slip
- asphalt waterproof
- viscosity
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- 239000010426 asphalt Substances 0.000 title claims abstract description 76
- 238000000576 coating method Methods 0.000 title claims abstract description 21
- 239000011248 coating agent Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 61
- 229960000892 attapulgite Drugs 0.000 claims abstract description 60
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 24
- 239000003973 paint Substances 0.000 claims abstract description 18
- 238000010008 shearing Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 39
- 239000003995 emulsifying agent Substances 0.000 claims description 19
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical group [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical group [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 10
- 235000019270 ammonium chloride Nutrition 0.000 claims description 9
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 239000007822 coupling agent Substances 0.000 claims description 7
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004945 emulsification Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000004927 clay Substances 0.000 abstract description 6
- 230000004048 modification Effects 0.000 abstract description 6
- 238000012986 modification Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 8
- 125000002091 cationic group Chemical group 0.000 description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 229910021642 ultra pure water Inorganic materials 0.000 description 6
- 239000012498 ultrapure water Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000006087 Silane Coupling Agent Substances 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 235000015110 jellies Nutrition 0.000 description 4
- 239000008274 jelly Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- VZXFEELLBDNLAL-UHFFFAOYSA-N dodecan-1-amine;hydrobromide Chemical compound [Br-].CCCCCCCCCCCC[NH3+] VZXFEELLBDNLAL-UHFFFAOYSA-N 0.000 description 1
- TWFQJFPTTMIETC-UHFFFAOYSA-N dodecan-1-amine;hydron;chloride Chemical compound [Cl-].CCCCCCCCCCCC[NH3+] TWFQJFPTTMIETC-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- XQSBLCWFZRTIEO-UHFFFAOYSA-N hexadecan-1-amine;hydrobromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[NH3+] XQSBLCWFZRTIEO-UHFFFAOYSA-N 0.000 description 1
- ZWGTVKDEOPDFGW-UHFFFAOYSA-N hexadecylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[NH3+] ZWGTVKDEOPDFGW-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- -1 hydrogen ions Chemical class 0.000 description 1
- KKWUACQXLWHLCX-UHFFFAOYSA-N hydron;tetradecan-1-amine;chloride Chemical compound Cl.CCCCCCCCCCCCCCN KKWUACQXLWHLCX-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- CUXKZYSCZCNPNX-UHFFFAOYSA-N tetradecan-1-amine;hydrobromide Chemical compound [Br-].CCCCCCCCCCCCCC[NH3+] CUXKZYSCZCNPNX-UHFFFAOYSA-N 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- CEYYIKYYFSTQRU-UHFFFAOYSA-M trimethyl(tetradecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCC[N+](C)(C)C CEYYIKYYFSTQRU-UHFFFAOYSA-M 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
Abstract
The invention relates to the field of emulsified asphalt coating, and in particular discloses a high-viscosity anti-slip emulsified asphalt waterproof coating and a preparation method thereof, wherein the waterproof coating comprises the following raw materials: asphalt, cationic surfactant, amino modified attapulgite, stabilizer and water; the preparation method comprises the following steps: s1: roasting attapulgite, and then carrying out amino modification; s2: shearing the amino modified attapulgite at a high speed; s3: mixing the amino modified attapulgite subjected to high-speed shearing with asphalt, a stabilizer and water to obtain the high-viscosity anti-slip emulsified asphalt waterproof coating. The high-viscosity anti-slip emulsified asphalt waterproof paint adopts low-cost natural clay attapulgite as a raw material, and the raw material is simple and easy to obtain, green and environment-friendly and low in cost; the high-viscosity anti-slip emulsified asphalt waterproof coating is simple in use method, has good viscosity, has the bonding strength of 1.4 MPa, is excellent in anti-slip waterproof effect, has the water impermeability of 0.3 (MPa, 30 min), and has the road surface friction coefficient of more than 70.
Description
Technical Field
The invention relates to the field of emulsified asphalt coating, in particular to a high-viscosity anti-slip emulsified asphalt waterproof coating.
Background
With the development of road and urban road construction, the road surface required by the present is a high-quality road surface which not only has the function of bearing traffic, but also coordinates with the surrounding environment and can improve the traffic condition. On the one hand, the expressway provides higher driving safety for vehicles, so that high requirements are also provided for the anti-skid performance of the road surface structure, particularly, the phenomenon of skidding and water drifting easily occurs on the road surface due to rain and fog, and great hidden danger is brought to driving safety. It is therefore desirable to have a pavement that is both highly tacky, water-resistant and slip-resistant.
The asphalt pavement has good elastic-plastic property, is favorable for improving the speed of the vehicle, reducing the oil consumption and the like, and becomes the main application field of asphalt. Emulsified asphalt is an oil-in-water (O/W) emulsion formed by heating and melting asphalt, and dispersing the asphalt in an aqueous solution containing an emulsifier and an auxiliary agent as fine particles under the action of mechanical stirring. Compared with common asphalt, the emulsified asphalt can better improve road quality and has the advantages of low maintenance cost, energy conservation, convenient construction and the like. According to the difference of the electrical property of the used emulsifying agent, the cationic emulsified asphalt is divided into cationic emulsified asphalt, anionic emulsified asphalt, nonionic emulsified asphalt and the like, wherein the cationic emulsified asphalt can efficiently adsorb negatively charged rock and mineral surfaces due to positive charges of asphalt particles in emulsion of the cationic emulsified asphalt, and can be constructed normally even in wet or low-temperature seasons, so that the cationic emulsified asphalt has wider application range compared with the anionic emulsified asphalt and the nonionic emulsified asphalt.
The attapulgite clay is also called palygorskite, is an aqueous magnesium-rich silicate clay mineral with a chain layered structure, has loose and porous structure, large specific surface area and high viscosity, contains a large amount of silanol groups and exchangeable cations on the surface, has ideal adsorption performance, colloid performance and heat resistance, and has the advantages of large domestic storage amount, extremely low price, environmental protection, no pollution, wide application prospect and urgent need of industrialization of application ends.
In summary, the present invention is directed to providing a high-viscosity anti-slip emulsified asphalt waterproof coating with low manufacturing cost, which can be applied to humid environments or rain and fog weather.
Disclosure of Invention
The invention aims to provide an emulsified asphalt coating which at least has high viscosity and good anti-skid and waterproof effects.
The aim of the invention is realized by the following technical scheme:
a high-viscosity anti-slip emulsified asphalt waterproof coating comprises the following raw materials: asphalt, cationic surfactant, amino modified attapulgite, stabilizer and water.
Further, the raw materials comprise, by weight: 100-120 parts of asphalt, 0.1-0.2 part of cationic surfactant, 4-5 parts of amino modified attapulgite, 0.1-0.2 part of stabilizer and 60-70 parts of water.
Further, the cationic surfactant includes dodecyl ammonium chloride, tetradecyl ammonium chloride, hexadecyl ammonium chloride, dodecyl ammonium bromide, tetradecyl ammonium bromide, hexadecyl ammonium bromide, dodecyl trimethyl ammonium chloride, tetradecyl trimethyl ammonium chloride, or hexadecyl trimethyl ammonium chloride.
Further, the stabilizer comprises calcium chloride, sodium chloride or ammonium chloride; ammonium chloride is preferred.
The preparation method of the emulsified asphalt waterproof paint comprises the following steps:
s1: grinding and sieving the baked attapulgite, cleaning, adding a solvent for dispersion, adding an aminosilane coupling agent for mixing, reacting for 3-6 hours at 60-80 ℃, and removing the solvent to obtain the amino modified attapulgite;
s2: mixing the amino modified attapulgite with the cationic surfactant, and then adopting a high-speed shearing machine to conduct high-speed shearing under the condition of 3000-5000r/min to obtain an attapulgite emulsifier;
s3: mixing the attapulgite emulsifier, the stabilizer and water, adjusting the pH to 5-6, heating to 65-70 ℃, mixing with the asphalt heated to 100-120 ℃ and carrying out emulsification reaction to obtain the emulsified asphalt waterproof coating.
It is noted that if the attapulgite clay used has too large particle size and too many impurities, the attapulgite clay should be purified before use, and the specific steps are as follows: the attapulgite is pre-ground and sieved by a 120-mesh sieve, then dispersant sodium hexametaphosphate (the dosage is 5% of that of the attapulgite) is added, magnetic stirring is carried out for at least 30min under the condition of 400r/min, ultrasonic dispersion is carried out for 1h, and sediment is taken out for drying after standing for 2h, thus the purification is completed.
In certain preferred embodiments, the bitumen is also subjected to high shear of 2000-3000 r/min.
Further, in step S1, the attapulgite is ground and then sieved by a 200-mesh sieve.
Further, in the step S1, the aminosilane coupling agent is A-1160, KH-560, KH-570 or KH-792.
Further, in step S1, the solvent includes: n-butanol or methanol.
Further, in step S1, the weight ratio of the attapulgite, the solvent and the aminosilane coupling agent is 1:6:1.
further, in step S1, the roasting temperature is 250-300 ℃, and the roasting time is 1-2h.
Further, in step S2, the high-speed shearing time is 1-2h.
Further, in step S3, the time of the emulsification reaction is 3-10min.
It is worth noting that in the invention, the emulsified asphalt is obtained by adding a small amount of cationic surfactant, because the attapulgite is broken into a small molecular structure by high-speed shearing, the dispersity and the specific surface of the attapulgite are increased, and the cationic surfactant is used for modification, so that the attapulgite which is hydrophilic has lipophilicity at the same time, and the function of the emulsifier can be realized. In addition, the invention also carries out amino modification on the attapulgite, the attapulgite is rich in transition metal ions, can be replaced by hydrogen ions in a meta-acid environment, and can realize the effect of the cationic emulsifier after grafting the amino with positive charges. Therefore, the emulsified asphalt waterproof paint of the invention can not additionally add a cationic emulsifier, thereby reducing the manufacturing cost. In addition, the attapulgite clay has loose and porous structure and good adsorption capacity and adsorption performance to moisture, so that the water damage on the moisture asphalt ground can be effectively prevented, and the asphalt modified by SBS is different from the traditional method.
The beneficial effects of the invention are as follows:
1. the invention can prepare the emulsified asphalt waterproof paint by only adding a small amount of surfactant, and can realize the waterproof effect without adding SBS.
2. The emulsified asphalt waterproof paint adopts low-cost, green and environment-friendly natural clay attapulgite as a raw material, and has low manufacturing cost and simple preparation method.
3. The emulsified asphalt waterproof paint disclosed by the invention is simple in use method, can be quickly dried when being sprayed on the ground, and has good anti-skid waterproof effect.
Detailed Description
The technical scheme of the present invention is described in further detail below, but the scope of the present invention is not limited to the following.
Example 1
The preparation method of the high-viscosity anti-slip emulsified asphalt waterproof paint comprises the following specific steps:
1) 500g of attapulgite (purified, 120 meshes, purchased from Mitsui mineral works, ming Guang, anhui) is put into a reaction kettle, 3000g of methanol is then added, a stirrer of the reaction kettle is opened, 500g of KH-792 silane coupling agent is slowly added, and the temperature of the reaction kettle is controlled to be 80 ℃ for reaction for 4 hours. And (3) closing a stirrer of the reaction kettle, and filtering materials in the reaction kettle, wherein filter residues are the amino modified attapulgite.
2) 450g of the amino modified attapulgite is added with 10g of dodecyl trimethyl ammonium chloride, stirred for 30min to form a sticky jelly, and then added into a high-speed shearing machine, and the high-speed shearing is carried out at the rotating speed of 4000r/min for 2h to obtain the attapulgite emulsifier.
3) Pouring all the attapulgite emulsifying agent into a reaction kettle, adding 10g of ammonium chloride and 6.5L of ultrapure water, slowly stirring, adjusting the pH to 6 by hydrochloric acid, controlling the temperature of the reaction kettle to be 70 ℃, slowly pouring 10kg of No. 70 asphalt at 120 ℃, and stirring for 5min to obtain the emulsified asphalt waterproof coating.
Example 2
The preparation method of the high-viscosity anti-slip emulsified asphalt waterproof paint comprises the following specific steps:
1) 500g of attapulgite (purified, 120 meshes, purchased from Mitsui mineral works, ming Guang, anhui) is put into a reaction kettle, 3000g of n-butanol is added, a stirrer of the reaction kettle is opened, 500g of KH-792 silane coupling agent is slowly added, and the temperature of the reaction kettle is controlled to be 70 ℃ for reaction for 3 hours. And (3) closing a stirrer of the reaction kettle, and filtering materials in the reaction kettle, wherein filter residues are the amino modified attapulgite.
2) 400g of the amino modified attapulgite is added with 10g of dodecyl trimethyl ammonium chloride, stirred for 30min to form a sticky jelly, and then added into a high-speed shearing machine, and the high-speed shearing is carried out at a rotating speed of 3000r/min for 2h to obtain the attapulgite emulsifier.
3) Pouring all the attapulgite emulsifying agent into a reaction kettle, adding 10g of ammonium chloride and 6L of ultrapure water, slowly stirring, adjusting the pH to 5.5 by hydrochloric acid, controlling the temperature of the reaction kettle to be 70 ℃, slowly pouring 9kg of No. 70 asphalt at 120 ℃, and stirring for 5min to obtain the emulsified asphalt waterproof coating.
Example 3
The preparation method of the high-viscosity anti-slip emulsified asphalt waterproof paint comprises the following specific steps:
1) 500g of attapulgite (purified, 120 meshes, purchased from Mitsui mineral works, ming Guang, anhui) is put into a reaction kettle, 3000g of n-butanol is added, a stirrer of the reaction kettle is opened, 500g of KH-792 silane coupling agent is slowly added, and the temperature of the reaction kettle is controlled to be 60 ℃ for reaction for 6 hours. And (3) closing a stirrer of the reaction kettle, and filtering materials in the reaction kettle, wherein filter residues are the amino modified attapulgite.
2) 450g of the amino modified attapulgite is added with 10g of dodecyl trimethyl ammonium chloride, stirred for 30min to form a sticky jelly, and then added into a high-speed shearing machine, and the high-speed shearing is carried out at the rotating speed of 5000r/min for 2h to obtain the attapulgite emulsifier.
3) Pouring all the attapulgite emulsifying agent into a reaction kettle, adding 10g of ammonium chloride and 6.5L of ultrapure water, slowly stirring, adjusting the pH to 6 by hydrochloric acid, controlling the temperature of the reaction kettle to be 70 ℃, slowly pouring 10kg of No. 70 asphalt at 120 ℃, and stirring for 4min to obtain the emulsified asphalt waterproof coating.
Comparative example 1
An emulsified asphalt waterproof paint was prepared, which was different from example 1 in that: the dosage of dodecyl trimethyl ammonium chloride is increased (namely, the dosage is equivalent to that of the conventional emulsified asphalt preparation method) without adding amino modified attapulgite. The specific method comprises the following steps:
100g of dodecyl trimethyl ammonium chloride, 10g of ammonium chloride and 6.5L of ultrapure water are mixed, the pH is regulated to 6 by hydrochloric acid while slowly stirring, then the temperature of a reaction kettle is controlled to be 60 ℃, 10kg of No. 70 asphalt at 120 ℃ is slowly poured into the reaction kettle, and the emulsified asphalt waterproof paint is obtained after stirring for 5 min.
Comparative example 2
An emulsified asphalt waterproof paint was prepared, which was different from example 1 in that: the amino modifier is not sheared by a high-speed shearing method, and is stirred by a general stirrer. The specific method comprises the following steps:
1) 500g of attapulgite (purified, 120 meshes, purchased from Mitsui mineral works, ming Guang, anhui) is put into a reaction kettle, 3000g of methanol is then added, a stirrer of the reaction kettle is opened, 500g of KH-792 silane coupling agent is slowly added, and the temperature of the reaction kettle is controlled to be 80 ℃ for reaction for 4 hours. And (3) closing a stirrer of the reaction kettle, and filtering materials in the reaction kettle, wherein filter residues are the amino modified attapulgite.
2) 450g of the amino modified attapulgite is added with 10g of dodecyl trimethyl ammonium chloride, and stirred by an industrial electric stirrer at the rotating speed of 350r/min for 24 hours to obtain the attapulgite emulsifier.
3) Pouring all the attapulgite emulsifying agent into a reaction kettle, adding 10g of ammonium chloride and 6.5L of ultrapure water, slowly stirring, adjusting the pH to 6 by hydrochloric acid, controlling the temperature of the reaction kettle to be 70 ℃, slowly pouring 10kg of No. 70 asphalt at 120 ℃, and stirring for 5min to obtain the emulsified asphalt waterproof coating.
Comparative example 3
An emulsified asphalt waterproof paint was prepared, which was different from example 1 in that: the non-modified attapulgite is adopted to replace the amino modified attapulgite. The specific method comprises the following steps:
1) 450g of attapulgite (purified, 120 meshes, purchased from Mitsui mineral works of Ming Guangdong, anhui) is added with 10g of dodecyl trimethyl ammonium chloride, stirred for 30min to form a sticky jelly, added into a high-speed shearing machine, and sheared at a high speed of 4000r/min for 2h to obtain the attapulgite emulsifier.
2) Pouring all the attapulgite emulsifying agent into a reaction kettle, adding 10g of ammonium chloride and 6.5L of ultrapure water, slowly stirring, adjusting the pH to 6 by hydrochloric acid, controlling the temperature of the reaction kettle to be 70 ℃, slowly pouring 10kg of No. 70 asphalt at 120 ℃, and stirring for 5min to obtain the emulsified asphalt waterproof coating.
Comparative example 4
Referring to CN201911401567.9, the preparation method of the SBS emulsified asphalt waterproof paint comprises the following specific steps:
1) The SBS is dissolved in xylene and then mixed with dodecyl trimethyl, and excess xylene is removed to obtain SBS emulsion.
2) 4Kg of SBS emulsion, 100g of dodecyl trimethyl ammonium chloride, 2Kg of neoprene emulsion and 0.8Kg of titanate coupling agent are uniformly mixed, then 10Kg of No. 70 asphalt at 120 ℃ is added, and the mixture is sheared at a high speed in a colloid mill at a rotating speed of 3000r/min, so that the SBS emulsified asphalt waterproof paint is obtained.
Experimental example 1
The viscosity, particle charge, and water resistance of the emulsified asphalt water-proof coatings prepared in examples 1 to 3 and comparative examples 1 to 4 were examined. The viscosity detection method refers to a T0621 road asphalt standard viscosimeter method, the particle charge refers to T0653, the road friction coefficient (bpn) is detected through a pendulum friction coefficient instrument, and the rest detection methods refer to JC/T408.
| Standard viscosity of asphalt C 25,3 （s） | Particle charge | Impermeability (MPa, 30 min) | Bond Strength (MPa) | Coefficient of friction of road surface | |
| Example 1 | 21.3 | Positive charge (+) | 0.3 | 1.4 | 72.5 |
| Example 2 | 22.6 | Positive charge (+) | 0.3 | 1.4 | 70.1 |
| Example 3 | 21.1 | Positive charge (+) | 0.3 | 1.4 | 73.8 |
| ComparisonExample 1 | 10.2 | Positive charge (+) | 0.1 | 1.2 | 65.2 |
| Comparative example 2 | 14.7 | Positive charge (+) | 0.2 | 1.3 | 69.7 |
| Comparative example 3 | 19.3 | Positive charge (+) | 0.2 | 1.4 | 68.5 |
| Comparative example 4 | 11.5 | Positive charge (+) | 0.3 | 1.2 | 68.7 |
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (9)
1. The high-viscosity anti-slip emulsified asphalt waterproof coating is characterized by comprising the following raw materials: 100-120 parts of asphalt, 0.1-0.2 part of cationic surfactant, 4-5 parts of amino modified attapulgite, 0.1-0.2 part of stabilizer and 60-70 parts of water.
2. The high-viscosity anti-slip emulsified asphalt waterproof paint according to claim 1, wherein: the cationic surfactant is dodecyl trimethyl ammonium chloride.
3. The high-viscosity anti-slip emulsified asphalt waterproof paint according to claim 1, wherein: the stabilizer is ammonium chloride.
4. A method for preparing the high-viscosity anti-slip emulsified asphalt waterproof paint according to any one of claims 1 to 3, which is characterized in that: the method comprises the following steps:
s1: grinding and sieving the baked attapulgite, cleaning, adding a solvent for dispersion, adding an aminosilane coupling agent for mixing, reacting for 3-6 hours at 60-80 ℃, and removing the solvent to obtain the amino modified attapulgite;
s2: mixing the amino modified attapulgite with the cationic surfactant, and then adopting a high-speed shearing machine to conduct high-speed shearing under the condition of 3000-5000r/min to obtain an attapulgite emulsifier;
s3: mixing the attapulgite emulsifier, the stabilizer and water, adjusting the pH to 5-6, heating to 65-70 ℃, mixing with the asphalt heated to 100-120 ℃ and carrying out emulsification reaction to obtain the emulsified asphalt waterproof coating.
5. The method of manufacturing according to claim 4, wherein: in the step S1, the attapulgite is ground and then screened by a 200-mesh sieve.
6. The method of manufacturing according to claim 4, wherein: in the step S1, the aminosilane coupling agent is KH-792.
7. The method of manufacturing according to claim 4, wherein: in step S1, the solvent includes: n-butanol or methanol.
8. The method of manufacturing according to claim 4, wherein: in the step S1, the weight ratio of the attapulgite to the solvent to the aminosilane coupling agent is 1:6:1.
9. the method of manufacturing according to claim 4, wherein: in the step S1, the roasting temperature is 250-300 ℃, and the roasting time is 1-2h.
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