CN117701018B - Modified high-viscosity asphalt and preparation method thereof - Google Patents
Modified high-viscosity asphalt and preparation method thereof Download PDFInfo
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- CN117701018B CN117701018B CN202311509102.1A CN202311509102A CN117701018B CN 117701018 B CN117701018 B CN 117701018B CN 202311509102 A CN202311509102 A CN 202311509102A CN 117701018 B CN117701018 B CN 117701018B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 49
- 239000003549 soybean oil Substances 0.000 claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 239000000839 emulsion Substances 0.000 claims abstract description 26
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 25
- 125000002091 cationic group Chemical group 0.000 claims abstract description 22
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 150000003512 tertiary amines Chemical class 0.000 claims abstract description 17
- 239000004593 Epoxy Substances 0.000 claims abstract description 16
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 claims abstract description 16
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 11
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 11
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 150000001348 alkyl chlorides Chemical class 0.000 claims abstract description 8
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims abstract description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 18
- 239000000084 colloidal system Substances 0.000 claims description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 11
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 claims description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- IUNMPGNGSSIWFP-UHFFFAOYSA-N dimethylaminopropylamine Chemical compound CN(C)CCCN IUNMPGNGSSIWFP-UHFFFAOYSA-N 0.000 claims description 9
- 229940014800 succinic anhydride Drugs 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007764 o/w emulsion Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000004945 emulsification Methods 0.000 abstract description 2
- 125000003700 epoxy group Chemical group 0.000 abstract description 2
- 238000005886 esterification reaction Methods 0.000 abstract description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract description 2
- 150000003242 quaternary ammonium salts Chemical group 0.000 abstract description 2
- 238000005956 quaternization reaction Methods 0.000 abstract description 2
- 238000007142 ring opening reaction Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- VFWCMGCRMGJXDK-UHFFFAOYSA-N 1-chlorobutane Chemical compound CCCCCl VFWCMGCRMGJXDK-UHFFFAOYSA-N 0.000 description 1
- ZTEHOZMYMCEYRM-UHFFFAOYSA-N 1-chlorodecane Chemical compound CCCCCCCCCCCl ZTEHOZMYMCEYRM-UHFFFAOYSA-N 0.000 description 1
- YAYNEUUHHLGGAH-UHFFFAOYSA-N 1-chlorododecane Chemical compound CCCCCCCCCCCCCl YAYNEUUHHLGGAH-UHFFFAOYSA-N 0.000 description 1
- CNDHHGUSRIZDSL-UHFFFAOYSA-N 1-chlorooctane Chemical compound CCCCCCCCCl CNDHHGUSRIZDSL-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The invention relates to the technical field of asphalt, and discloses modified high-viscosity asphalt and a preparation method thereof, wherein the invention uses 3- (dimethylamino) -1-propionamido butyric acid to catalyze by triphenylphosphine, and (3) carrying out ring opening esterification reaction with epoxy groups of the epoxidized soybean oil to obtain tertiary amine epoxidized soybean oil, and finally carrying out microwave-assisted reaction to carry out quaternization with alkyl chloride to obtain the cationic epoxidized soybean oil emulsifier. The hydroxyethyl cellulose is used as a tackifier, asphalt is added into emulsion of the cationic epoxy soybean oil emulsifier to form uniform oil-in-water emulsion, and the emulsion has the advantages of good emulsification condition, long emulsion stability time and high storage stability; the cationic epoxy soybean oil emulsifier contains nitrogen-containing groups such as quaternary ammonium salt and amide bond, and can prolong the adsorption process between asphalt and stone surface in the mixing process, thereby prolonging the mixing time, achieving the effect of slow cracking and quick setting and better meeting the construction requirements.
Description
Technical Field
The invention relates to the technical field of asphalt, in particular to modified high-viscosity asphalt and a preparation method thereof.
Background
Asphalt is a building material with wide application, and is mainly applied to the waterproof and anticorrosion fields of roofing, ground and underground structures. The emulsified asphalt has the advantages of good fluidity, strong cohesiveness, convenient construction and the like, and the emulsified asphalt heats and melts asphalt, forms fine particles through mechanical stirring, and is dispersed in an emulsifier solution to form the oil-in-water emulsion. The asphalt is mainly divided into cationic emulsified asphalt, anionic emulsified asphalt, nonionic emulsified asphalt and the like. The storage stability of emulsified asphalt is improved, the mixing time and other performances are prolonged, the construction requirements can be effectively met, and the patent CN103333136B discloses that polyethylene polyamine, formaldehyde, organic acid, quaternizing agent and the like are used as reaction raw materials to prepare the polyamine amide cationic asphalt emulsifier, and the emulsifier has the advantages of small using amount of the emulsifier and good stability. The invention aims to prepare the cationic epoxidized soybean oil emulsifier, improve the storage stability and the mixing time of emulsified asphalt and better meet the construction requirements.
Disclosure of Invention
The invention solves the following technical problems: the modified high-viscosity asphalt and the preparation method thereof are provided, the storage stability of the emulsified asphalt is improved, and the mixing time is prolonged.
The invention provides the following technical scheme:
A preparation method of modified high-viscosity asphalt comprises the following components, by weight, 100 parts of asphalt, 1.5-3 parts of cationic epoxy soybean oil emulsifier, 50-55 parts of water and 0.2-0.8 part of hydroxyethyl cellulose tackifier; the preparation method comprises the following steps:
(1) Adding N, N-dimethylformamide solvent, tertiary amine epoxidized soybean oil and alkyl chloride into a reaction bottle provided with a condensing tube, placing the reaction bottle into a microwave reactor for reaction, concentrating under reduced pressure, and washing with acetone to obtain a cationic epoxidized soybean oil emulsifier;
(2) Adding a cationic epoxidized soybean oil emulsifier and a hydroxyethyl cellulose tackifier into water, uniformly stirring to form emulsion, dropwise adding hydrochloric acid, and adding the emulsion into a colloid mill; and heating and melting the asphalt, adding the asphalt into a colloid mill, and shearing and emulsifying to obtain the modified high-viscosity asphalt.
Further, the proportion of tertiary amine epoxidized soybean oil and alkyl chloride in the step (1) is 1g (0.38-0.65 g); the molecular formula of the alkyl chloride is C nH2n+1 C l, and n is 4-12.
Further, the power of the microwave reactor in the reaction in the step (1) is 500-700W, the reaction temperature is 130-145 ℃ and the reaction time is 2-4h.
Further, the pH of the emulsion is regulated to 2-3 by dropwise adding hydrochloric acid in the step (2).
Further, (3) adding a solvent, 3- (dimethylamino) -1-propylamine and succinic anhydride into a reaction bottle, reacting for 2-4 hours at the temperature of 30-45 ℃, concentrating under reduced pressure, and washing with petroleum ether to obtain 3- (dimethylamino) -1-propionamidobutyric acid; the reaction formula is as follows:
(4) Adding 3- (dimethylamino) -1-propionamido butyric acid and triphenylphosphine into a reaction bottle, stirring for 10-20min, adding epoxidized soybean oil, stirring for reaction, and cooling to obtain tertiary amine epoxidized soybean oil.
Further, the solvent in (3) is any one of ethyl acetate, toluene, tetrahydrofuran or acetone.
Further, the proportion of 3- (dimethylamino) -1-propylamine and succinic anhydride in (3) is 1g (0.98-1.15 g).
Further, the ratio of 3- (dimethylamino) -1-propionamidobutyric acid, triphenylphosphine, epoxidized soybean oil in (4) is (0.5-0.7) g (0.16-0.24) g:1g.
Further, the reaction temperature in the step (4) is 120-135 ℃ and the reaction time is 5-10 h.
The invention has the following technical effects:
the preparation method comprises the steps of taking 3- (dimethylamino) -1-propylamine and succinic anhydride as reactants to obtain 3- (dimethylamino) -1-propionamido-butyric acid, then carrying out ring opening esterification reaction on carboxyl and epoxy groups of epoxy soybean oil under the catalysis of triphenylphosphine to obtain tertiary amine epoxy soybean oil, and finally carrying out microwave-assisted reaction to carry out quaternization with alkyl chloride to obtain the cationic epoxy soybean oil emulsifier.
According to the invention, hydroxyethyl cellulose is used as a tackifier, asphalt is added into emulsion of cationic epoxidized soybean oil emulsifier to form uniform oil-in-water emulsion, and the method has the advantages of good emulsification condition, long emulsion stability time and high storage stability, and simultaneously improves the properties of asphalt evaporant such as ductility, softening point and the like; the cationic epoxy soybean oil emulsifier contains nitrogen-containing groups such as quaternary ammonium salt and amide bond, and can prolong the adsorption process between asphalt and stone surface in the mixing process, thereby prolonging the mixing time, achieving the effect of slow cracking and quick setting and better meeting the construction requirements.
Detailed Description
In order to better understand the technical solutions of the present invention, the following description will clearly and completely describe the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1
150ML of ethyl acetate solvent, 10g of 3- (dimethylamino) -1-propylamine and 10.7g of succinic anhydride are added into a reaction bottle to react for 2 hours at the temperature of 45 ℃, and then the mixture is decompressed, concentrated and washed by petroleum ether to obtain 3- (dimethylamino) -1-propionamidobutyric acid;
7.5g of 3- (dimethylamino) -1-propionamidobutyric acid and 2.4g of triphenylphosphine are added into a reaction flask, stirred for 10min, 15g of epoxidized soybean oil is added, stirred at 135 ℃ for 5h, and cooled to obtain tertiary amine epoxidized soybean oil.
Adding 5mL of N, N-dimethylformamide solvent, 4g of tertiary amine epoxy soybean oil and 1.52g of 1-chlorobutane into a reaction bottle provided with a condensing tube, placing the reaction bottle into a microwave reactor, controlling the power to be 600W, reacting for 2 hours at 145 ℃, concentrating under reduced pressure, washing with acetone, and obtaining the cationic epoxy soybean oil emulsifier;
Adding 7.5g of cationic epoxidized soybean oil emulsifier and 2g of hydroxyethyl cellulose tackifier into 250mL of water, uniformly stirring to form emulsion, dropwise adding hydrochloric acid to adjust the pH of the emulsion to 3, and adding the emulsion into a colloid mill; 500g of asphalt is heated and melted, then added into a colloid mill, sheared and emulsified to obtain the modified high-viscosity asphalt.
Example 2
Adding 200mL of acetone solvent, 10g of 3- (dimethylamino) -1-propylamine and 11.5g of succinic anhydride into a reaction bottle, reacting for 3 hours at 30 ℃, concentrating under reduced pressure, and washing with petroleum ether to obtain 3- (dimethylamino) -1-propionamidobutyric acid;
10.2g of 3- (dimethylamino) -1-propionamidobutyric acid and 2.8g of triphenylphosphine are added into a reaction flask, stirred for 20min, 15g of epoxidized soybean oil is added, stirred at 120 ℃ for reaction for 10h, and cooled to obtain tertiary amine epoxidized soybean oil.
Adding 8mL of N, N-dimethylformamide solvent, 4g of tertiary amine epoxy soybean oil and 1.88g of 1-chlorooctane into a reaction bottle provided with a condensing tube, placing the reaction bottle into a microwave reactor, controlling the power to be 500W, reacting for 2 hours at 145 ℃, concentrating under reduced pressure, washing with acetone, and obtaining the cationic epoxy soybean oil emulsifier;
Adding 10g of cationic epoxidized soybean oil emulsifier and 1g of hydroxyethyl cellulose tackifier into 250mL of water, uniformly stirring to form emulsion, dropwise adding hydrochloric acid to adjust the pH of the emulsion to 3, and adding the emulsion into a colloid mill; 500g of asphalt is heated and melted, then added into a colloid mill, sheared and emulsified to obtain the modified high-viscosity asphalt.
Example 3
Adding 100mL of toluene solvent, 10g of 3- (dimethylamino) -1-propylamine and 9.8g of succinic anhydride into a reaction bottle, reacting for 2 hours at the temperature of 45 ℃, concentrating under reduced pressure, and washing with petroleum ether to obtain 3- (dimethylamino) -1-propionamidobutyric acid;
12.7g of 3- (dimethylamino) -1-propionamidobutyric acid and 3.2g of triphenylphosphine are added into a reaction flask, stirred for 15min, 15g of epoxidized soybean oil is added, stirred at 130 ℃ for reaction for 8h, and cooled to obtain tertiary amine epoxidized soybean oil.
Adding 10mL of N, N-dimethylformamide solvent, 4g of tertiary amine epoxy soybean oil and 2.31g of 1-chlorodecane into a reaction bottle provided with a condensing tube, placing the reaction bottle into a microwave reactor, controlling the power to be 500W, reacting for 4 hours at 135 ℃, concentrating under reduced pressure, washing with acetone, and obtaining the cationic epoxy soybean oil emulsifier;
Adding 12.5g of cationic epoxidized soybean oil emulsifier and 4g of hydroxyethyl cellulose tackifier into 275mL of water, uniformly stirring to form emulsion, dropwise adding hydrochloric acid to adjust the pH of the emulsion to 2, and adding the emulsion into a colloid mill; 500g of asphalt is heated and melted, then added into a colloid mill, sheared and emulsified to obtain the modified high-viscosity asphalt.
Example 4
Adding 150mL of tetrahydrofuran solvent, 10g of 3- (dimethylamino) -1-propylamine and 11.5g of succinic anhydride into a reaction bottle, reacting for 4 hours at 35 ℃, concentrating under reduced pressure, and washing with petroleum ether to obtain 3- (dimethylamino) -1-propionamidobutyric acid;
15g of 3- (dimethylamino) -1-propionamidobutyric acid and 3.6g of triphenylphosphine are added into a reaction flask, stirred for 20min, 15g of epoxidized soybean oil is added, stirred at 135 ℃ for reaction for 6h, and cooled to obtain tertiary amine epoxidized soybean oil.
Adding 10mL of N, N-dimethylformamide solvent, 4g of tertiary amine epoxy soybean oil and 2.6g of 1-chlorododecane into a reaction bottle provided with a condensing tube, placing the reaction bottle into a microwave reactor, controlling the power to be 600W, reacting for 3 hours at 145 ℃, concentrating under reduced pressure, washing with acetone, and obtaining the cationic epoxy soybean oil emulsifier;
Adding 15g of cationic epoxidized soybean oil emulsifier and 3g of hydroxyethyl cellulose tackifier into 275mL of water, uniformly stirring to form emulsion, dropwise adding hydrochloric acid to adjust the pH of the emulsion to 3, and adding the emulsion into a colloid mill; 500g of asphalt is heated and melted, then added into a colloid mill, sheared and emulsified to obtain the modified high-viscosity asphalt.
Comparative example 1
Adding 7.5g of epoxidized soybean oil and 3g of hydroxyethyl cellulose tackifier into 250mL of water, uniformly stirring to form emulsion, dropwise adding hydrochloric acid to adjust the pH of the emulsion to 3, and adding the emulsion into a colloid mill; 500g of asphalt is heated and melted, then added into a colloid mill, sheared and emulsified to obtain the modified high-viscosity asphalt.
Asphalt performance was tested by reference to the JTJ052-2000 standard method.
TABLE 1 testing of the blendable time of modified high viscosity asphalt
| Mixing time(s) | |
| Example 1 | 265 |
| Example 2 | 280 |
| Example 3 | 310 |
| Example 4 | 335 |
| Comparative example 1 | 145 |
Table 2 table for performance test of modified high viscosity asphalt
Table 3 table of performance test of evaporation residue of modified high viscosity asphalt
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (6)
1. The preparation method of the modified high-viscosity asphalt is characterized by comprising the following components in parts by weight: 100 parts of asphalt, 1.5-3 parts of cationic epoxy soybean oil emulsifier, 50-55 parts of water and 0.2-0.8 part of hydroxyethyl cellulose tackifier; the preparation method comprises the following steps:
(1) Adding N, N-dimethylformamide solvent, tertiary amine epoxidized soybean oil and alkyl chloride into a reaction bottle provided with a condensing tube, placing the reaction bottle into a microwave reactor for reaction, concentrating under reduced pressure, and washing with acetone to obtain a cationic epoxidized soybean oil emulsifier;
(2) Adding a cationic epoxidized soybean oil emulsifier and a hydroxyethyl cellulose tackifier into water, uniformly stirring to form emulsion, dropwise adding hydrochloric acid, and adding the emulsion into a colloid mill; heating and melting asphalt, adding the asphalt into a colloid mill, and shearing and emulsifying to obtain modified high-viscosity asphalt;
the preparation method of the tertiary amine epoxidized soybean oil comprises the following steps:
S1, adding a solvent, 3- (dimethylamino) -1-propylamine and succinic anhydride into a reaction bottle, reacting for 2-4 hours at the temperature of 30-45 ℃, concentrating under reduced pressure, and washing with petroleum ether to obtain 3- (dimethylamino) -1-propionamidobutyric acid;
S2, adding 3- (dimethylamino) -1-propionamido butyric acid and triphenylphosphine into a reaction bottle, stirring for 10-20min, adding epoxidized soybean oil, stirring for reaction, and cooling to obtain tertiary amine epoxidized soybean oil;
the proportion of 3- (dimethylamino) -1-propylamine and succinic anhydride in the S1 is 1g (0.98-1.15 g);
The proportion of 3- (dimethylamino) -1-propionamidobutyric acid, triphenylphosphine and epoxidized soybean oil in the S2 is (0.5-0.7) g (0.16-0.24) g and 1g.
2. The method for preparing modified high-viscosity asphalt according to claim 1, wherein the proportion of tertiary amine epoxidized soybean oil and alkyl chloride in (1) is 1g (0.38-0.65) g; the molecular formula of the alkyl chloride is C nH2n+1 Cl, and n is 4-12.
3. The method for preparing modified high-viscosity asphalt according to claim 1, wherein the power of the microwave reactor in the reaction in the step (1) is 500-700W, the reaction temperature is 130-145 ℃ and the time is 2-4h.
4. The method for producing a modified high-viscosity asphalt according to claim 1, wherein the pH of the emulsion is adjusted to 2 to 3 by dropping hydrochloric acid into the (2).
5. The method for preparing modified high-viscosity asphalt according to claim 1, wherein the solvent in S1 is any one of ethyl acetate, toluene, tetrahydrofuran or acetone.
6. The method for preparing modified high-viscosity asphalt according to claim 1, wherein the reaction temperature in S2 is 120-135 ℃ for 5-10 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311509102.1A CN117701018B (en) | 2023-11-14 | Modified high-viscosity asphalt and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311509102.1A CN117701018B (en) | 2023-11-14 | Modified high-viscosity asphalt and preparation method thereof |
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| Publication Number | Publication Date |
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| CN117701018A CN117701018A (en) | 2024-03-15 |
| CN117701018B true CN117701018B (en) | 2024-09-24 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633102A (en) * | 2016-11-22 | 2017-05-10 | 汪逸凡 | Preparation method of high-stability composite cationic asphalt emulsifier |
| CN111423734A (en) * | 2020-04-13 | 2020-07-17 | 湖南大学 | Reactive type regenerated SBS (styrene butadiene styrene) modified asphalt and preparation method thereof |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633102A (en) * | 2016-11-22 | 2017-05-10 | 汪逸凡 | Preparation method of high-stability composite cationic asphalt emulsifier |
| CN111423734A (en) * | 2020-04-13 | 2020-07-17 | 湖南大学 | Reactive type regenerated SBS (styrene butadiene styrene) modified asphalt and preparation method thereof |
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