CN113336962A - Quick demulsifier for cationic emulsified asphalt and preparation method and application thereof - Google Patents
Quick demulsifier for cationic emulsified asphalt and preparation method and application thereof Download PDFInfo
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- CN113336962A CN113336962A CN202110361595.3A CN202110361595A CN113336962A CN 113336962 A CN113336962 A CN 113336962A CN 202110361595 A CN202110361595 A CN 202110361595A CN 113336962 A CN113336962 A CN 113336962A
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- emulsified asphalt
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- cationic emulsified
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- 239000010426 asphalt Substances 0.000 title claims abstract description 92
- 125000002091 cationic group Chemical group 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 17
- -1 organic acid salt Chemical class 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 8
- 239000011591 potassium Substances 0.000 claims description 8
- 229910052700 potassium Inorganic materials 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229920001732 Lignosulfonate Polymers 0.000 claims description 5
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 5
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 4
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 4
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 4
- VAKMIIPDYZXBEV-DPMBMXLASA-M potassium;(z,12r)-12-hydroxyoctadec-9-enoate Chemical compound [K+].CCCCCC[C@@H](O)C\C=C/CCCCCCCC([O-])=O VAKMIIPDYZXBEV-DPMBMXLASA-M 0.000 claims description 4
- WYPBVHPKMJYUEO-NBTZWHCOSA-M sodium;(9z,12z)-octadeca-9,12-dienoate Chemical compound [Na+].CCCCC\C=C/C\C=C/CCCCCCCC([O-])=O WYPBVHPKMJYUEO-NBTZWHCOSA-M 0.000 claims description 4
- SOQQSPURSLWWMI-UHFFFAOYSA-N 1,3-thiazole-4-carbothioamide Chemical compound NC(=S)C1=CSC=N1 SOQQSPURSLWWMI-UHFFFAOYSA-N 0.000 claims description 3
- 108010010803 Gelatin Proteins 0.000 claims description 3
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 3
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 claims description 3
- 229940077388 benzenesulfonate Drugs 0.000 claims description 3
- 235000019445 benzyl alcohol Nutrition 0.000 claims description 3
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 3
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 3
- DTOSIQBPPRVQHS-PDBXOOCHSA-M linolenate Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC([O-])=O DTOSIQBPPRVQHS-PDBXOOCHSA-M 0.000 claims description 3
- 229940040452 linolenate Drugs 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 3
- 229940096992 potassium oleate Drugs 0.000 claims description 3
- 229940114930 potassium stearate Drugs 0.000 claims description 3
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 claims description 3
- MQOCIYICOGDBSG-UHFFFAOYSA-M potassium;hexadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCC([O-])=O MQOCIYICOGDBSG-UHFFFAOYSA-M 0.000 claims description 3
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 claims description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 3
- 229940045870 sodium palmitate Drugs 0.000 claims description 3
- IJRHDFLHUATAOS-DPMBMXLASA-M sodium ricinoleate Chemical compound [Na+].CCCCCC[C@@H](O)C\C=C/CCCCCCCC([O-])=O IJRHDFLHUATAOS-DPMBMXLASA-M 0.000 claims description 3
- 229940080350 sodium stearate Drugs 0.000 claims description 3
- UNZSHUCNBUBSGW-IFNWOZJISA-M sodium;(9z,12z,15z)-octadeca-9,12,15-trienoate Chemical compound [Na+].CC\C=C/C\C=C/C\C=C/CCCCCCCC([O-])=O UNZSHUCNBUBSGW-IFNWOZJISA-M 0.000 claims description 3
- PNGBYKXZVCIZRN-UHFFFAOYSA-M sodium;hexadecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCCCCCS([O-])(=O)=O PNGBYKXZVCIZRN-UHFFFAOYSA-M 0.000 claims description 3
- GGXKEBACDBNFAF-UHFFFAOYSA-M sodium;hexadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCC([O-])=O GGXKEBACDBNFAF-UHFFFAOYSA-M 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003995 emulsifying agent Substances 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- 230000007480 spreading Effects 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002335 surface treatment layer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/08—Cellulose derivatives
- C08J2401/26—Cellulose ethers
- C08J2401/28—Alkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a quick demulsifier for cationic emulsified asphalt, a preparation method and an application thereof, wherein the quick demulsifier is prepared from the following components in percentage by mass: 5-30% of organic acid salt, 5-15% of dispersing agent, 0.01-0.5% of stabilizing agent and 20-80% of organic solvent. The quick demulsifier for the cationic emulsified asphalt has the advantages of low price and easy obtainment of raw materials, simple production process, and direct addition to asphalt for uniform stirring during use, and the prepared cationic emulsified asphalt can greatly improve the demulsification speed, increase the consistency of the emulsified asphalt, improve the storage stability of the emulsified asphalt, shorten the sealing of the emulsified asphalt macadam, shorten the process maintenance and traffic sealing time beyond the surface, and enhance the adhesion effect.
Description
Technical Field
The invention relates to the field of road materials, in particular to a cationic emulsified asphalt rapid demulsifier and a preparation method and application thereof.
Background
China already enters the maintenance stage of the existing large-scale roads, and preventive maintenance technologies such as chip sealing, surface exceeding and the like are widely applied in China.
The macadam seal is characterized in that a special device, namely a macadam seal vehicle, is used for spreading a bonding material (modified asphalt or emulsified asphalt) and stone on a road surface in sequence, and a single-layer asphalt macadam wearing layer is formed by natural driving rolling or rolling by a tire road roller, is mainly used as a road surface treatment layer and can also be used for surface layer construction of low-grade roads. The emulsified asphalt is used as a cementing material for a gravel seal and a super-surface process, and has the advantages of convenience in construction (no need of heating), environmental protection, greenness, high cost performance and the like, but the existing process of using the cationic emulsified asphalt as the cementing material seriously depends on the weather, the temperature and the environment of a construction place, for example, construction on the back of a mountain area or construction in the cloudy weather with lower temperature and higher humidity, the demulsification speed of the emulsified asphalt is sharply reduced compared with the fine weather, so that the time for closing traffic is obviously prolonged, or aggregate falling occurs after traffic is opened, even the situation that a large area is taken away by a vehicle occurs, on one hand, engineering failure can be caused, economic loss is caused, and meanwhile, the flying stone material can also cause traffic accidents and influence the driving safety. Patent application No.: 201310692077.5 discloses a cation emulsified asphalt rapid demulsifier, a preparation method thereof and a method for rapidly obtaining emulsified asphalt residues by using the same, but the cation emulsified asphalt rapid demulsifier can only be used for rapidly obtaining the emulsified asphalt residues in laboratories, wherein the used sodium hydroxide aqueous solution and concentrated hydrochloric acid belong to strong base and strong acid, are inconvenient to use and can cause great damage to the environment, and cannot be used for large-scale engineering construction. Patent application No.: 201610113766.X reports a cationic emulsified asphalt rapid demulsifier, a preparation method thereof and an aqueous early strength agent applied to cold regeneration of emulsified asphalt, which can only be used for mixing construction of cold regeneration and is not applicable to spraying application of a gravel seal. Therefore, we propose a cationic emulsified asphalt rapid demulsifier, a preparation method and an application thereof.
Disclosure of Invention
The invention aims to provide a quick cationic emulsified asphalt demulsifier, and a preparation method and application thereof, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a quick demulsifier for cationic emulsified asphalt comprises the following components in percentage by mass:
preferably, the compound is prepared from the following raw materials in percentage by mass:
further, the organic acid salt is one or more of sodium alkyl benzene sulfonate C10-C16, sodium hexadecyl sulfonate, sodium oleate, sodium linoleate, sodium linolenate, sodium ricinoleate, sodium palmitate, sodium stearate, potassium oleate, potassium linoleate, potassium linolenate, potassium ricinoleate, potassium palmitate and potassium stearate.
Further, the dispersant is one or more of sodium lignosulfonate, potassium lignosulfonate, calcium lignosulfonate and alkaline lignin.
Further, the stabilizer is one or more of hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol and gelatin.
Further, the organic solvent is one or more of methanol, ethanol, propanol, isopropanol, ethylene glycol and benzyl alcohol
Further, the dispersing agent is added into the organic solvent and stirred uniformly, then the stabilizing agent is added and dispersed uniformly, the temperature is raised, and the organic acid salt is fully dissolved and dispersed uniformly.
Further, the preparation method of the quick cationic emulsified asphalt demulsifier comprises the following steps:
step (1): adding a dispersing agent into the organic solvent and uniformly stirring;
step (2): adding a stabilizer and fully and uniformly dispersing;
and (3): heating to 30-50 deg.C, dissolving organic acid salt, and dispersing.
Further, the asphalt is added into the asphalt according to the mass ratio of 0.1-3.0% to be uniformly dispersed, preferably, the mass ratio of the asphalt is 0.3-1.0%.
Further, the quick cationic emulsified asphalt demulsifier is applied to the processes of protecting pavement by cationic emulsified asphalt, such as chip seal, super surface and the like.
The invention also aims to provide an application method of the quick demulsifier for the cationic emulsified asphalt, wherein the quick demulsifier is added into hot (120-145 ℃)70# (or 90#) road petroleum asphalt and is uniformly stirred, and the mass ratio of the addition amount to the asphalt is 0.1-2.0: 100, preferably the mass ratio of 0.3-1.0: and (100) then making emulsified asphalt by passing through a colloid mill (or a shearing machine) together with a hot (40-70 ℃) cation fast-cracking emulsifier aqueous solution, and performing chip sealing and super-surface construction on the obtained emulsified asphalt.
Compared with the prior art, the invention has the beneficial effects that: the quick demulsifier for the cationic emulsified asphalt has the advantages of low price and easy obtainment of raw materials, simple production process, and direct addition to asphalt for uniform stirring during use, and the prepared cationic emulsified asphalt can greatly improve the demulsification speed, increase the consistency of the emulsified asphalt, improve the storage stability of the emulsified asphalt, shorten the sealing of the emulsified asphalt macadam, shorten the process maintenance and traffic sealing time beyond the surface, and enhance the adhesion effect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a quick demulsifier for cationic emulsified asphalt, which comprises the following components in percentage by mass:
preferably, the compound is prepared from the following raw materials in percentage by mass:
the organic acid salt is one or more of C10-C16 sodium alkyl benzene sulfonate, sodium hexadecyl sulfonate, sodium oleate, sodium linoleate, sodium linolenate, sodium ricinoleate, sodium palmitate, sodium stearate, potassium oleate, potassium linoleate, potassium linolenate, potassium ricinoleate, potassium palmitate and potassium stearate.
The dispersant is one or more of sodium lignosulfonate, potassium lignosulfonate, calcium lignosulfonate and alkaline lignin.
The stabilizer is one or more of hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol and gelatin.
The organic solvent is one or more of methanol, ethanol, propanol, isopropanol, ethylene glycol and benzyl alcohol
Adding the dispersing agent into the organic solvent, stirring uniformly, adding the stabilizing agent, dispersing uniformly, raising the temperature, and fully dissolving and dispersing the organic acid salt uniformly.
A preparation method of a cation emulsified asphalt rapid demulsifier comprises the following steps:
step (1): adding a dispersing agent into the organic solvent and uniformly stirring;
step (2): adding a stabilizer and fully and uniformly dispersing;
and (3): heating to 30-50 deg.C, dissolving organic acid salt, and dispersing.
The asphalt is added into the asphalt according to the mass ratio of 0.1-3.0% to be uniformly dispersed, preferably, the mass ratio of the asphalt is 0.3-1.0%.
The cationic emulsified asphalt rapid demulsifier is applied to the processes of protecting pavement by cationic emulsified asphalt, such as chip seal, super surface and the like.
The method for testing the indexes of the emulsified asphalt in the application examples and the comparative examples refers to JTG E20-2011 Highway engineering asphalt and asphalt mixture test regulations, the technical indexes of the chip sealer refer to the technical requirements of the chip sealer emulsified asphalt in International slurry cover Association (ISSA) A165, and the quantitative test of the emulsion breaking rate of the emulsified asphalt refers to the method in American ASTM D6936.
Example 1
The preparation of the fast demulsifier is as follows:
weighing 6 parts of sodium lignosulphonate, fully mixing the sodium lignosulphonate with 60 parts of ethylene glycol, adding 7 parts of hydroxymethyl cellulose, fully and uniformly mixing, heating to 45 ℃, adding 25 parts of sodium linoleate, fully and uniformly mixing, and cooling to room temperature after uniform mixing to obtain the quick cationic emulsified asphalt demulsifier.
Application example 1
Dissolving 3 parts of EM-630 emulsifier (Shanghai Longfu materials technology Co., Ltd.) and 2 parts of 36% concentrated hydrochloric acid in 350 parts of 60 ℃ hot water; 650 parts of Zhehai-70 # road petroleum asphalt is taken, the temperature is controlled at 135 ℃, 0.5 part of the rapid demulsifier prepared in the example 1 is added into the Zhehai-70 # asphalt and is stirred uniformly, the asphalt and the emulsifier aqueous solution are sheared for 30s-1min by a colloid mill to prepare emulsified asphalt, and the indexes of the tested emulsified asphalt are shown in the following table 1. Taking 40 parts of emulsified asphalt cooled to room temperature, uniformly spreading the emulsified asphalt on a circular felt with the particle size of 0.03 square meter, quickly and uniformly spreading 500 parts of basalt macadam with the particle size of 5-8mm, repeatedly rolling for 5 times by using a rolling machine, placing the macadam in a thermostat with the temperature of 25 ℃, keeping the temperature for 2 hours, taking out the macadam, wearing the macadam by using an abrader for 5 minutes, and testing the stone falling rate, which is shown in the following table 2.
Comparative example 1
The procedure was the same as in application example 1 except that 0.5 part of the rapid demulsifier was not added.
Example 2
The preparation of the fast demulsifier is as follows:
weighing 8 parts of potassium lignosulfonate, fully mixing the potassium lignosulfonate with 75 parts of benzyl alcohol, adding 10 parts of hydroxypropyl methyl cellulose, fully and uniformly mixing, heating to 50 ℃, adding 40 parts of potassium ricinoleate, fully and uniformly mixing, and cooling to room temperature after uniform mixing to obtain the quick cationic emulsified asphalt demulsifier.
Application example 2
4 parts of 4819 parts of emulsifier (Noron Chemicals Co., Ltd.) and 3.5 parts of 36% concentrated hydrochloric acid are dissolved in 350 parts of 60 ℃ hot water; 650 parts of Zhonghai-90 # road petroleum asphalt is taken, the temperature is controlled at 135 ℃, 0.8 part of prepared rapid demulsifier is added into the Zhonghai-90 # asphalt and is stirred uniformly, the asphalt and the emulsifier aqueous solution are sheared for 30s-1min by a colloid mill to prepare emulsified asphalt, and the indexes of the tested emulsified asphalt are shown in the following table 1. Taking 35 parts of emulsified asphalt cooled to room temperature, uniformly spreading the emulsified asphalt on a circular asphalt felt with the square meter of 0.03, quickly and uniformly spreading 380 parts of diabase macadam with the particle size of 3-5mm, repeatedly rolling for 6 times by using a rolling machine, placing the diabase macadam in a 30 ℃ thermostat, keeping the temperature for 1.5h, taking out the diabase macadam, wearing the diabase macadam for 5min by using an abrader, and testing the stone falling rate, which is shown in the following table 2.
Comparative example 2
The procedure was the same as in application example 2 except that 0.8 part of the rapid demulsifier was not added.
TABLE 1 emulsified asphalt Performance index
TABLE 2 abrasion and adhesion resistance index of the mixture
As can be seen from the analysis in the above table 1, the demulsification rate of the example added with the cationic emulsified asphalt demulsifier is obviously improved, the Saibotch viscosity of the emulsified asphalt is obviously improved, and the storage stability is also improved compared with the comparative example.
As can be seen from the analysis of the above table 2, the example added with the cationic emulsified asphalt demulsifier has a shorter curing time in a low-temperature oven, and the stone falling rate is reduced obviously and does not fall off basically compared with the comparative example.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The quick cationic emulsified asphalt demulsifier is characterized by comprising the following components in percentage by mass:
preferably, the compound is prepared from the following raw materials in percentage by mass:
2. the rapid cationic emulsified asphalt demulsifier according to claim 1, which is characterized in that: the organic acid salt is one or more of C10-C16 sodium alkyl benzene sulfonate, sodium hexadecyl sulfonate, sodium oleate, sodium linoleate, sodium linolenate, sodium ricinoleate, sodium palmitate, sodium stearate, potassium oleate, potassium linoleate, potassium linolenate, potassium ricinoleate, potassium palmitate and potassium stearate.
3. The rapid cationic emulsified asphalt demulsifier according to claim 1, which is characterized in that: the dispersant is one or more of sodium lignosulfonate, potassium lignosulfonate, calcium lignosulfonate and alkaline lignin.
4. The rapid cationic emulsified asphalt demulsifier according to claim 1, which is characterized in that: the stabilizer is one or more of hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol and gelatin.
5. The rapid cationic emulsified asphalt demulsifier according to claim 1, which is characterized in that: the organic solvent is one or more of methanol, ethanol, propanol, isopropanol, ethylene glycol and benzyl alcohol.
6. The method for preparing the rapid demulsifier for the cationic emulsified asphalt according to any one of claims 1 to 5, wherein the rapid demulsifier for the cationic emulsified asphalt comprises the following steps: adding the dispersing agent into the organic solvent, stirring uniformly, adding the stabilizing agent, dispersing uniformly, raising the temperature, and fully dissolving and dispersing the organic acid salt uniformly.
7. The method for preparing the rapid cationic emulsified asphalt demulsifier according to claim 6, which is characterized by comprising the following steps:
step (1): adding a dispersing agent into the organic solvent and uniformly stirring;
step (2): adding a stabilizer and fully and uniformly dispersing;
and (3): heating to 30-50 deg.C, dissolving organic acid salt, and dispersing.
8. The method for preparing the rapid demulsifier for the cationic emulsified asphalt according to claim 7, wherein the rapid demulsifier for the cationic emulsified asphalt comprises the following steps: the asphalt is added into the asphalt according to the mass ratio of 0.1-3.0% to be uniformly dispersed, preferably, the mass ratio of the asphalt is 0.3-1.0%.
9. The method for preparing the rapid demulsifier for the cationic emulsified asphalt according to claim 7, wherein the rapid demulsifier for the cationic emulsified asphalt comprises the following steps: the cationic emulsified asphalt rapid demulsifier is applied to the processes of protecting pavement by cationic emulsified asphalt, such as chip seal, super surface and the like.
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