CN115678297B - Asphalt stripping-resistant agent and preparation method and application thereof - Google Patents
Asphalt stripping-resistant agent and preparation method and application thereof Download PDFInfo
- Publication number
- CN115678297B CN115678297B CN202110847322.XA CN202110847322A CN115678297B CN 115678297 B CN115678297 B CN 115678297B CN 202110847322 A CN202110847322 A CN 202110847322A CN 115678297 B CN115678297 B CN 115678297B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- stripping
- quaternary ammonium
- ammonium salt
- resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 128
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title abstract description 10
- -1 nitrogen-containing aromatic compound Chemical class 0.000 claims abstract description 42
- 238000002156 mixing Methods 0.000 claims abstract description 28
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 19
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 13
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 13
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000005210 alkyl ammonium group Chemical group 0.000 claims abstract description 9
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 9
- 238000005469 granulation Methods 0.000 claims abstract description 9
- 230000003179 granulation Effects 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000003208 petroleum Substances 0.000 claims description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 238000011161 development Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 4
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 4
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 4
- MVZWLBUGTZKZMN-UHFFFAOYSA-N pyrimidine-4,6-diamine;hydrochloride Chemical compound Cl.NC1=CC(N)=NC=N1 MVZWLBUGTZKZMN-UHFFFAOYSA-N 0.000 claims description 4
- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-UHFFFAOYSA-N 0.000 claims description 3
- VHMLWEBEDKTKOQ-UHFFFAOYSA-N 5,6-diamino-1h-pyrimidine-2,4-dione;hydrochloride Chemical compound Cl.NC=1NC(=O)NC(=O)C=1N VHMLWEBEDKTKOQ-UHFFFAOYSA-N 0.000 claims description 3
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- RJCJNXXYYTWFCM-UHFFFAOYSA-N 2,4-diaminopyrimidin-5-ol dihydrochloride Chemical compound Cl.Cl.Nc1ncc(O)c(N)n1 RJCJNXXYYTWFCM-UHFFFAOYSA-N 0.000 claims description 2
- IIVYOQGIZSPVFZ-UHFFFAOYSA-N 2,5-diamino-4-hydroxy-1h-pyrimidin-6-one;hydrochloride Chemical compound Cl.NC1=NC(O)=C(N)C(=O)N1 IIVYOQGIZSPVFZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- YGBLNCKLYAIPQB-UHFFFAOYSA-N 2-tert-butyl-4-(2,2-dimethylpropyl)phenol Chemical compound CC(C)(C)CC1=CC=C(O)C(C(C)(C)C)=C1 YGBLNCKLYAIPQB-UHFFFAOYSA-N 0.000 claims 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 claims 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 238000004088 simulation Methods 0.000 description 14
- 238000002474 experimental method Methods 0.000 description 13
- 239000011384 asphalt concrete Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 230000035515 penetration Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- KUUXBQKORDCEFO-UHFFFAOYSA-N 1-phenyl-2-pyridin-1-ium-1-ylethanone Chemical class C=1C=CC=CC=1C(=O)C[N+]1=CC=CC=C1 KUUXBQKORDCEFO-UHFFFAOYSA-N 0.000 description 1
- PBIZDZQRODMMPZ-UHFFFAOYSA-N 2-pyridin-1-ium-1-ylacetonitrile Chemical class N#CC[N+]1=CC=CC=C1 PBIZDZQRODMMPZ-UHFFFAOYSA-N 0.000 description 1
- URNFIAHZVRABFB-UHFFFAOYSA-N N1(CC=CC=C1)CC#N Chemical compound N1(CC=CC=C1)CC#N URNFIAHZVRABFB-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses an asphalt stripping-resistant agent, and a preparation method and application thereof. The asphalt stripping-resistant agent comprises the following raw materials: styrene butadiene rubber, ethylene-vinyl acetate copolymer, nitrogen-containing aromatic compound, methacrylate compound, alkyl ammonium chloride, hindered phenol compound. The preparation method of the asphalt stripping-resistant agent comprises the following steps: and uniformly mixing the materials, and carrying out mixing and granulation to obtain the asphalt stripping resistant agent. The asphalt stripping-resistant agent is granular, is used in airport asphalt, can obviously improve the adhesion strength of asphalt, improves the stripping resistance, and has stronger adaptability to the environment of aircraft with high Wen Weiliu.
Description
Technical Field
The invention belongs to the petroleum industry and the basic material chemistry field, in particular to an asphalt stripping-resistant agent and a preparation method thereof, which are particularly suitable for an airport asphalt runway.
Background
The working state of the asphalt concrete material for the airfield runway is obviously different from that of the asphalt concrete material for the common highway, and the asphalt concrete material mainly comprises the following two points: firstly, high-temperature air flow sprayed by a jet aircraft seriously affects the stability of asphalt concrete materials; secondly, asphalt concrete materials are easy to loosen surface coarse aggregates to form foreign invaders (FODs) after oil content is reduced, and the FODs can cause serious flight accidents once being sucked into aircraft engines. Therefore, the high-temperature stability and the coarse aggregate shedding resistance of the asphalt concrete material are improved, and the method is an important research direction for improving the civil aviation operation safety capability. At present, polymer modified asphalt with better high-temperature performance is widely adopted for paving airport runways worldwide so as to solve the problems of pavement deformation and threshing under the conditions of aircraft wake baking and high shear stress, but the effect is not ideal, and after a period of use, pavement bulges crack and aggregate fall frequently, so that huge flight potential safety hazards and maintenance cost rise.
At present, aiming at the aggregate stripping problem of expressways or common roads, mainly aiming at the water damage resistance, a method for adding an anti-stripping agent into asphalt or asphalt mixture is proposed, but the temperature, the tail gas flow, the air flow speed and the like of automobile tail gas on the roads are greatly different from those of the tail gas of jet aircrafts. Therefore, the aim of adding the stripping-resistant agent on the highway is mainly considered to be water damage resistance and prevent aggregate stripping when asphalt concrete is affected by water; the main consideration on the runway is the purging effect of the jet aircraft with high Wen Weiliu, high temperature (850-900 ℃), large air flow and high air flow speed (180 m/s). There is no anti-stripping agent developed specifically for the problem of asphalt concrete aggregate stripping of airport runways due to the influence of jet aircraft altitude Wen Weiliu.
Disclosure of Invention
Aiming at the problem of aggregate stripping of an airport asphalt runway, the invention provides an asphalt stripping-resistant agent which is particularly suitable for the airport asphalt runway, and a preparation method and application thereof. When the asphalt stripping-resistant agent is used for an airport asphalt runway, the stripping resistance of asphalt can be obviously improved.
The invention provides an asphalt stripping-resistant agent, which comprises the following raw materials in parts by mass:
3-15 parts of styrene-butadiene rubber,
2-10 parts of ethylene-vinyl acetate copolymer,
1-5 parts of a nitrogen-containing aromatic compound,
1-6 parts of methacrylate compounds,
0.1 to 0.6 part of alkyl ammonium chloride,
0.2-0.7 parts of hindered phenol compound.
The asphalt stripping-resistant agent of the invention preferably comprises the following raw materials in parts by mass:
4-14 parts of styrene-butadiene rubber,
3-9 parts of ethylene-vinyl acetate copolymer,
2-5 parts of a nitrogen-containing aromatic compound,
2-6 parts of methacrylate compounds,
0.2 to 0.6 part of alkyl ammonium chloride,
0.3-0.6 parts of hindered phenol compound.
The mass content of the combined styrene of the styrene-butadiene rubber is 24-44 wt%, preferably 25-43 wt%. The styrene-butadiene rubber preferably has a particle size of not more than 20mm, and generally 5-20 mm.
The ethylene-vinyl acetate copolymer has a combined vinyl acetate mass content of 21wt% to 27wt%, preferably 22wt% to 26wt%.
The nitrogen-containing aromatic compound is at least one selected from pyridine quaternary ammonium salt and diaminopyrimidine hydrochloride.
Further, the quaternary pyridinium salt may be also referred to as an azabenzene quaternary ammonium salt, and is at least one selected from the group consisting of N-benzoylmethyl pyridinium salt, O- (7-azabenzotriazol-1-yl) -N, N, N ', N' -tetramethylurea tetrafluoroborate quaternary ammonium salt, N-cyanomethyl pyridinium salt, N- (2-acetylpyridinyl) pyridinium salt, N-ethylacetate pyridinium quaternary ammonium salt, N-nitrile methyl pyridinium salt, N-acetate pyridinium quaternary ammonium salt, 2-mercaptopyridinium quaternary ammonium salt, N- (2-methylpropenyl) picoline quaternary ammonium salt, and bromoN-benzoylmethyl pyridinium quaternary ammonium salt. The diamino pyrimidine hydrochloride is at least one selected from 2, 5-diamino-4, 6-dihydroxypyrimidine hydrochloride, 4, 5-diamino-2, 6-dihydroxypyrimidine hydrochloride and 2, 4-diamino-pyrimidin-5-ol dihydrochloride.
The methacrylate compound is any one or a mixture of a plurality of 2-hydroxyethyl methacrylate, 2-ethylhexyl methacrylate and ethyl methacrylate.
The alkyl ammonium chloride is one or two of octadecyl trimethyl ammonium chloride and hexadecyl trimethyl ammonium chloride.
The hindered phenol compound comprises any one or a mixture of more than one of 2, 8-di-tert-butyl-4-methylphenol, tetra- [3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid octadecyl ester and 1,3,5- (3, 5-di-tert-butyl-4-hydroxyphenyl) s-triazine-2, 4,6 (1H, 3H, 5H) trione.
The asphalt stripping-resistant agent is granular, and the grain diameter is 2-5 mm
The second aspect of the invention provides a preparation method of the asphalt stripping-resistant agent, which comprises the following steps:
the asphalt stripping-resistant agent is prepared by uniformly mixing ethylene-vinyl acetate copolymer, styrene-butadiene rubber, alkyl ammonium chloride, nitrogen-containing aromatic compound, methacrylate compound and hindered phenol compound, and then carrying out mixing and granulation.
The mixing is effected by conventional mixing devices, such as kneaders.
Further, the kneading conditions were as follows: the mixing temperature is 160-180 ℃ and the mixing time is 40-80 min
The granulation is achieved using conventional extrusion granulation equipment, such as a screw extruder. The extrusion granulation conditions were as follows: the extrusion granulating temperature is 160-180 ℃.
Further, the asphalt anti-stripping agent prepared by the method provided by the second aspect is granular, and the granularity can be 2-5 mm.
In a third aspect, the present invention provides a stripping-resistant asphalt comprising: petroleum asphalt and the asphalt stripping-resistant agent.
In the anti-stripping asphalt, the dosage of the anti-stripping agent accounts for 2% -3% of the mass of the anti-stripping asphalt.
Further, in the anti-stripping asphalt, the petroleum asphalt can be conventional petroleum asphalt for airport runways, and is at least one of straight asphalt, oxidized asphalt, blended asphalt, solvent deoiling asphalt and polymer modified asphalt.
The fourth aspect of the present invention provides a method for preparing the anti-stripping asphalt, comprising: heating and melting petroleum asphalt, adding the stripping-resistant agent, uniformly mixing, and developing to obtain the stripping-resistant asphalt.
In the preparation method of the stripping-resistant asphalt, the asphalt is heated and melted at 160-180 ℃, the mixing (such as stirring) temperature is 160-180 ℃, and the mixing time can be 40-80 min. The development temperature is 160-180 ℃ and the development time is 4-8 hours.
The stripping-resistant agent is particularly suitable for application in airfield runway asphalt.
The stripping-resistant asphalt provided by the invention is suitable for being used as airfield runway asphalt.
The invention has the following advantages:
1. the stripping-resistant agent not only can remarkably improve the stripping resistance of asphalt, but also has strong adaptability to the high Wen Weiliu environment of an airplane, can improve the stripping resistance of an airport asphalt runway, reduce the stripping of aggregate, and can reduce the occurrence rate of flight accidents.
2. The stripping resistant agent is granular, and is convenient to transport and store.
3. In the preparation method of the stripping-resistant agent, the nitrogenous aromatic compound is used as an initiator, and the ethylene-vinyl acetate copolymer, the styrene-butadiene rubber and the methacrylate compound are fused in a kneader and in the screw extrusion process, so that the formed product has higher viscosity and flexibility, and also has good polarity and ageing resistance, and the stripping-resistant agent can enable asphalt to have good high-temperature stripping resistance in a high-temperature environment. Alkyl ammonium chloride is added to change the surface acidity of stone, so that the adhesion strength between asphalt and stone is further enhanced. The addition of the hindered phenol compound can improve the anti-aging capability of the substance containing unsaturated bonds, thereby improving the anti-shedding agent and the thermal aging resistance of asphalt.
4. The stripping resistant agent shortens mixing time and development time and improves production efficiency in the preparation and use processes.
Detailed Description
The following examples are given to illustrate the technical aspects of the present invention in detail, but the present invention is not limited to the following examples. In the invention, the weight percent is the mass fraction.
In the invention, the simulation experiment method of the aircraft height Wen Weiliu comprises the following steps: with aircraft engines (such as newer engines), the tail links a straight barrel of high temperature resistant material with heating. During the experiment, the asphalt to be tested is melted and then placed in a metal tray, and the asphalt is spread flatly to form a film with the thickness of 3mm plus or minus 0.3 mm. The tray with the asphalt film is arranged at the bottom in the cylinder body and is firmly fixed. The bottom of the cylinder body has a heating function, so that the temperature of asphalt in the tray is maintained at 60+/-20 ℃ (the temperature of Wen Shilu table in summer simulation). The engine is started, so that high-temperature tail gas of the engine enters from one end of the straight cylinder, the other end of the straight cylinder is discharged, the high-temperature tail gas is blown over the asphalt membrane, the blowing is continued for 30 minutes, and the blowing is stopped for 10 minutes, so that the process is continuously repeated for a plurality of times. One experimental period was 240 hours from the initial start of blowing. And then taking out the asphalt, analyzing each performance, and comparing the performance with the performance before the simulation experiment. The method simulates the condition of asphalt on an airport runway (especially in a take-off section) when the asphalt is purged by high-temperature tail gas of an airplane for a long time, and examines the change of asphalt properties, especially the change of stripping resistance.
In the invention, the asphalt adhesion strength is obtained by testing with a drawing tester. The instrument and the test method are as follows:
instrument and equipment: drawing tester with model PosiTest AT-A, tester parameters: a draw rate of 150psi/s; test range 0-2000psi; the test method is as follows:
weighing asphalt with the mass of 0.03g on the experimental surface of the spindle; placing the spindle with asphalt on an electric heating plate, after asphalt is melted, uniformly smearing the asphalt within 10 seconds, simultaneously rapidly transferring the preheated white steel plate to a horizontal operation table, buckling the spindle coated with the uniform asphalt on the white steel plate, standing and cooling to room temperature (about 1 h). The liquid asphalt spreads evenly under the action of spindle gravity, and after cooling, the spindle and the white steel plate are bonded, and the thickness of the asphalt film is about 0.1mm. The white steel plate cooled to room temperature and the spindle were put in an environmental box (temperature: 20 ℃ C.; relative humidity: 50 Rh%) and kept AT constant temperature for 1 hour, and then taken out, and the adhesion was measured using a Positest AT-A tester. The drawing strength value at the time of separating the spindle from the metal plate was recorded. The value is used for representing the stripping resistance of asphalt, and the greater the value is, the better the stripping resistance is.
Example 1
And crushing styrene butadiene rubber with the styrene content of 24wt% in advance, wherein the particle size is 5-18 mm, and reserving. The kneader is heated for use.
31.0kg of crushed styrene-butadiene rubber, 21.0kg of ethylene-vinyl acetate copolymer combined with 21wt% of vinyl acetate, 11.0kg of N-benzoyl methyl pyridine quaternary ammonium salt, 11.0kg of 2-hydroxyethyl methacrylate, 1.1 kg of octadecyl trimethyl ammonium chloride and 2.1kg of 2, 8-di-tert-butyl-4-methylphenol are weighed and placed into a kneader for mixing, wherein the mixing temperature is 162 ℃, and the mixing time is 42min; then extruding and granulating, wherein the extrusion temperature is 162 ℃. Cutting into granules with granularity of 2mm to obtain the stripping-resistant agent. The proportions of the components are shown in Table 1.
Example 2
The styrene-butadiene rubber with the combined styrene content of 44wt% is crushed in advance, and the particle size is 5-19 mm for standby. The kneader is heated for use.
Weighing 148.0kg of crushed styrene-butadiene rubber, 98.0 kg of ethylene-vinyl acetate copolymer with 27wt% of combined vinyl acetate, 48.0kg of N-cyanomethyl pyridine quaternary ammonium chloride, 58.0 kg of 2-ethylhexyl methacrylate, 5.8 kg of cetyl trimethyl ammonium chloride and 6.8 kg of tetra- [3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, and mixing in a kneader at 178 ℃ for 78min; then extruding and granulating, wherein the extrusion temperature is 178 ℃. Cutting into granule with particle size of 3mm to obtain the stripping resisting agent. The proportions of the components are shown in Table 1.
Example 3
And crushing styrene butadiene rubber with the styrene content of 33wt% in advance, wherein the particle size is 5-17 mm, and reserving. The kneader is heated for use.
Weighing 90.0kg of crushed styrene-butadiene rubber, 60.0kg of ethylene-vinyl acetate copolymer with the mass content of 24wt% of combined vinyl acetate, 30.0kg of 4, 5-diamino-2, 6-dihydroxypyrimidine hydrochloride, 35.0kg of ethyl methacrylate, 3.5kg of cetyl trimethyl ammonium chloride and 4.5kg of 1,3,5- (3, 5-di-tert-butyl-4-hydroxyphenyl) s-triazine-2, 4,6 (1H, 3H, 5H) trione, and placing the mixture into a kneader for mixing at the temperature of 170 ℃ for 60min; then extruding and granulating, wherein the extrusion temperature is 170 ℃. Cutting into granules with granularity of 4mm to obtain the stripping-resistant agent. The proportions of the components are shown in Table 1.
Example 4
And crushing styrene butadiene rubber with the styrene content of 26wt% in advance, wherein the particle size is 5-10 mm, and reserving. The kneader is heated for use.
42.0kg of crushed styrene-butadiene rubber, 32.0kg of ethylene-vinyl acetate copolymer with the mass content of 23wt% of combined vinyl acetate, 21.0kg of N- (2-methylpropenyl) picoline quaternary ammonium salt, 21.0kg of 2-hydroxyethyl methacrylate, 2.1kg of octadecyl trimethyl ammonium chloride and 3.1 kg of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid octadecyl alcohol ester are weighed and put into a kneader for mixing, wherein the mixing temperature is 165 ℃ and the mixing time is 50min; then extruding and granulating, wherein the extrusion temperature is 165 ℃. Cutting into granules with granularity of 4mm to obtain the stripping-resistant agent. The proportions of the components are shown in Table 1.
Example 5
The anti-stripping agent obtained in example 1 was added to a molten petroleum asphalt (Qilu 70A) produced by Qilu petrochemical company and having a penetration of 70dmm at 25 ℃,: the weight ratio of the stripping resistant agent is 97:3. stirring at a constant temperature of 162 ℃ for 42min, and then developing at a constant temperature of 162 ℃ for 4.2 hours to obtain the anti-stripping asphalt.
The adhesion strength of the anti-stripping asphalt was measured by a pull tester, and the results are shown in Table 2. The anti-stripping asphalt was subjected to a simulation experiment under the environment of aircraft height Wen Weiliu, and after one period of experiment, a drawing experiment was performed, and the results are shown in Table 2.
Example 6
The anti-stripping agent obtained in example 2 was added to a molten petroleum asphalt (Qilu 70A) produced by Qilu petrochemical company and having a penetration of 70dmm at 25 ℃,: the weight ratio of the stripping resistant agent is 97.5:2.5. stirring at a constant temperature of 178 ℃ for 78min, and then developing at a constant temperature of 178 ℃ for 7.8 hours to obtain the anti-stripping asphalt.
The adhesion strength of the anti-stripping asphalt was measured by a pull tester, and the results are shown in Table 2. The anti-stripping asphalt was subjected to a simulation experiment under the environment of aircraft height Wen Weiliu, and after one period of experiment, a drawing experiment was performed, and the results are shown in Table 2.
Example 7
The anti-stripping agent obtained in example 3 was added to a molten petroleum asphalt (Qilu 70A) produced by Qilu petrochemical company and having a penetration of 70dmm at 25 ℃,: the weight ratio of the stripping resistant agent is 98:2. stirring at a constant temperature of 170 ℃ for 60min, and then developing at a constant development temperature of 170 ℃ for 6 hours to obtain the anti-stripping asphalt.
The adhesion strength of the anti-stripping asphalt was measured by a pull tester, and the results are shown in Table 2. The anti-stripping asphalt was subjected to a simulation experiment under the environment of aircraft height Wen Weiliu, and after one period of experiment, a drawing experiment was performed, and the results are shown in Table 2.
Example 8
The anti-stripping agent obtained in example 4 was added to a molten petroleum asphalt (Qilu 70A) produced by Qilu petrochemical company and having a penetration of 70dmm at 25 ℃,: the weight ratio of the stripping resistant agent is 97:3. stirring at a constant temperature of 165 ℃ for 50min, and then developing at a constant development temperature of 165 ℃ for 5 hours to obtain the anti-stripping asphalt.
The adhesion strength of the anti-stripping asphalt was measured by a pull tester, and the results are shown in Table 2. The anti-stripping asphalt was subjected to a simulation experiment under the environment of aircraft height Wen Weiliu, and after one period of experiment, a drawing experiment was performed, and the results are shown in Table 2.
Comparative example 1
For comparison, the adhesion strength of a tensile tester for asphalt (Qilu 70A) produced by Qilu petrochemical company and having a penetration of 70dmm at 25℃was also shown in Table 2; and the simulation experiment of Qilu 70A produced by Qilu petrochemical company under the environment of aircraft height Wen Weiliu is also carried out, and after one period of experiment, drawing experiments are respectively carried out, and the results are shown in Table 2.
Comparative example 2
For comparison, a commercial anti-stripping agent JW-AS1 produced by Shenzhen Jia Cheng Wei was added to a molten petroleum asphalt (Qilu 70A) having a penetration of 70dmm at 25℃produced by Qilu petrochemical Co., ltd.: the weight ratio of the stripping resistant agent is 97.5:2.5. stirring at a constant temperature of 178 ℃ for 78min, and then developing at a constant temperature of 178 ℃ for 7.8 hours to obtain the anti-stripping asphalt.
The adhesion strength of the anti-stripping asphalt was measured by a pull tester, and the results are shown in Table 2. The anti-stripping asphalt was subjected to a simulation experiment under the environment of aircraft height Wen Weiliu, and after one period of experiment, a drawing experiment was performed, and the results are shown in Table 2.
Table 1 raw material ratio for preparing anti-stripping agent
| Weight of material/kg | Example 1 | Example 2 | Example 3 | Example 4 |
| Styrene-butadiene rubber | 31.0 | 148.0 | 90.0 | 42.0 |
| Ethylene-vinyl acetate copolymer | 21.0 | 98.0 | 60.0 | 32.0 |
| Nitrogen-containing aromatic compound | 11.0 | 48.0 | 30.0 | 21.0 |
| Methacrylate compounds | 11.0 | 58.0 | 35.0 | 21.0 |
| Alkyl ammonium chloride | 1.1 | 5.8 | 3.5 | 2.1 |
| Hindered phenol compound | 2.1 | 6.8 | 4.5 | 3.1 |
Table 2 asphalt drawing test results
| Adhesion strength/psi | Example 5 | Example 6 | Example 7 | Example 8 | Comparative example 1 | Comparative example 2 |
| No simulation experiments were performed | 564 | 493 | 620 | 591 | 380 | 421 |
| After simulation experiment | 616 | 536 | 672 | 642 | 308 | 432 |
As can be seen from table 2, the addition of the stripping-resistant agent of the invention to asphalt can significantly improve the adhesion strength and stripping resistance of asphalt; after one period of aircraft height Wen Weiliu simulation experiment, the adhesion strength of the asphalt added with the anti-stripping agent is not reduced, but is increased, so that the anti-stripping agent not only can improve the anti-stripping performance of the asphalt, but also has strong adaptability to the aircraft height Wen Weiliu environment. Asphalt without the stripping resistance agent has obviously reduced adhesion strength after simulation experiments; when a commercially available stripping inhibitor was added, the extent of improvement in the adhesion strength was smaller than that of the stripping inhibitor of the present invention, and the adhesion strength was not substantially improved although not reduced after the simulation test.
Claims (16)
1. The asphalt stripping-resistant agent comprises the following raw materials in parts by mass:
the mass content of the combined styrene in the styrene-butadiene rubber is 24-44 wt%;
the ethylene-vinyl acetate copolymer has a combined vinyl acetate mass content of 21wt% to 27wt%;
the nitrogen-containing aromatic compound is at least one selected from pyridine quaternary ammonium salt and diaminopyrimidine hydrochloride.
2. The asphalt anti-stripping agent according to claim 1, which comprises the following raw materials in parts by mass:
3. the asphalt stripping-resistant agent according to claim 1 or 2, wherein said styrene-butadiene rubber has a particle diameter of not more than 20mm.
4. The asphalt stripping agent according to claim 1 or 2, wherein said alkyl ammonium chloride is one or a mixture of two of octadecyl trimethyl ammonium chloride and hexadecyl trimethyl ammonium chloride.
5. The asphalt anti-stripping agent as defined in claim 1, characterized in that: the pyridine quaternary ammonium salt is at least one selected from N-benzoyl methyl pyridine quaternary ammonium salt, O- (7-aza-benzotriazole-1-yl) -N, N, N ', N' -tetramethyl urea tetrafluoroboric acid quaternary ammonium salt, N-cyanomethyl pyridine quaternary ammonium salt, N- (2-acetyl pyridine) pyridine quaternary ammonium salt, N-ethyl acetate pyridine quaternary ammonium salt, N-nitrile methyl pyridine quaternary ammonium salt, N-acetic acid pyridine quaternary ammonium salt, 2-mercapto pyridine quaternary ammonium salt, N- (2-methylpropenyl) methyl pyridine quaternary ammonium salt and bromo N-benzoyl methyl pyridine quaternary ammonium salt; the diamino pyrimidine hydrochloride is at least one selected from 2, 5-diamino-4, 6-dihydroxypyrimidine hydrochloride, 4, 5-diamino-2, 6-dihydroxypyrimidine hydrochloride and 2, 4-diamino-pyrimidin-5-ol dihydrochloride.
6. The asphalt anti-stripping agent according to claim 1 or 2, characterized in that: the methacrylate compound is any one or a mixture of a plurality of 2-hydroxyethyl methacrylate, 2-ethylhexyl methacrylate and ethyl methacrylate.
7. The asphalt stripping-resistant agent according to claim 1 or 2, wherein said hindered phenol compound comprises any one or a mixture of 2, 8-di-t-butyl-4-methylphenol, tetrakis- [3- (3, 5-di-t-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester, beta- (3, 5-di-t-butyl-4-hydroxyphenyl) propionate stearyl alcohol ester, 1,3,5- (3, 5-di-t-butyl-4-hydroxyphenyl) s-triazine-2, 4,6 (1H, 3H, 5H) trione.
8. The asphalt stripping agent according to claim 1 or 2, wherein said asphalt stripping agent is in the form of particles having a particle diameter of 2 to 5mm.
9. A process for preparing the asphalt anti-stripping agent according to any one of claims 1-8, comprising:
the asphalt stripping-resistant agent is prepared by uniformly mixing ethylene-vinyl acetate copolymer, styrene-butadiene rubber, alkyl ammonium chloride, nitrogen-containing aromatic compound, methacrylate compound and hindered phenol compound, and then carrying out mixing and granulation.
10. The method according to claim 9, wherein the mixing conditions are as follows: the mixing temperature is 160-180 ℃ and the mixing time is 40-80 min;
and/or, the granulation adopts extrusion granulation, and the temperature of extrusion granulation is 160-180 ℃.
11. A stripping-resistant asphalt comprising: petroleum asphalt and the asphalt anti-stripping agent as defined in any one of claims 1 to 8.
12. A stripping-resistant asphalt as claimed in claim 11, wherein the stripping-resistant asphalt comprises from 2% to 3% of the stripping-resistant asphalt by mass.
13. The anti-stripping asphalt as defined in claim 11, wherein said petroleum asphalt is at least one of straight asphalt, oxidized asphalt, blended asphalt, solvent deasphalted asphalt, and polymer modified asphalt.
14. A method of preparing the anti-strippable asphalt of any of claims 11-13, comprising: heating and melting petroleum asphalt, adding the asphalt anti-stripping agent, uniformly mixing, and developing to obtain the anti-stripping asphalt.
15. The method according to claim 14, wherein the petroleum asphalt has a heating and melting temperature of 160 ℃ to 180 ℃, a mixing temperature of 160 ℃ to 180 ℃ and a mixing time of 40 min to 80min; the development temperature is 160-180 ℃ and the development time is 4-8 hours.
16. Use of the bitumen anti-stripping agent of any one of claims 1 to 8 or the anti-stripping bitumen of any one of claims 11 to 13 in an airport runway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110847322.XA CN115678297B (en) | 2021-07-27 | 2021-07-27 | Asphalt stripping-resistant agent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110847322.XA CN115678297B (en) | 2021-07-27 | 2021-07-27 | Asphalt stripping-resistant agent and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115678297A CN115678297A (en) | 2023-02-03 |
| CN115678297B true CN115678297B (en) | 2023-10-10 |
Family
ID=85058289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110847322.XA Active CN115678297B (en) | 2021-07-27 | 2021-07-27 | Asphalt stripping-resistant agent and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115678297B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7459353B1 (en) | 2023-07-05 | 2024-04-01 | 日本製紙株式会社 | Anti-peeling agent |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167152A1 (en) * | 2011-06-03 | 2012-12-06 | Billian I.P. Limited | Asphalt pellets |
| CN103102706A (en) * | 2013-01-22 | 2013-05-15 | 烟台万华聚氨酯股份有限公司 | Polyurethane high-temperature-resistant anti-rutting modifier for road asphalt |
| CN103803836A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Additive for improving performance of asphalt pavement and preparation method thereof |
| CN103804927A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Asphalt mixture modifier and preparation method thereof |
| CN106189290A (en) * | 2016-07-12 | 2016-12-07 | 同济大学 | Modified asphalt material, its preparation method and application for airport pavement |
| CN106398239A (en) * | 2015-11-27 | 2017-02-15 | 梁清源 | Novel anti-rutting agent and preparation method thereof |
| CN109370240A (en) * | 2018-10-15 | 2019-02-22 | 高秀阁 | Environment protection modified pitch and its production technology |
| CN109722046A (en) * | 2018-12-29 | 2019-05-07 | 徐州道润公路工程有限公司 | A kind of color emulsified asphalt and preparation method thereof and colored micro-surface area |
| CN112280496A (en) * | 2020-10-21 | 2021-01-29 | 江苏共创人造草坪股份有限公司 | Water-based thermoplastic adhesive and application thereof in artificial turf |
| CN112824457A (en) * | 2019-11-21 | 2021-05-21 | 中国石油化工股份有限公司 | High-viscosity asphalt modifier, high-viscosity asphalt material and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7781503B2 (en) * | 2005-12-29 | 2010-08-24 | Firestone Polymers, Llc | Modified asphalt binders and asphalt paving compositions |
| US9944796B1 (en) * | 2014-02-21 | 2018-04-17 | Pri Asphalt Technologies, Inc. | Recycled oil- and rubber-modified asphalt and method of use |
| US10739269B2 (en) * | 2018-10-18 | 2020-08-11 | Baker Hughes, A Ge Company, Llc | Detection of trace chemicals in oil and gas applications |
-
2021
- 2021-07-27 CN CN202110847322.XA patent/CN115678297B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167152A1 (en) * | 2011-06-03 | 2012-12-06 | Billian I.P. Limited | Asphalt pellets |
| CN103803836A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Additive for improving performance of asphalt pavement and preparation method thereof |
| CN103804927A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Asphalt mixture modifier and preparation method thereof |
| CN103102706A (en) * | 2013-01-22 | 2013-05-15 | 烟台万华聚氨酯股份有限公司 | Polyurethane high-temperature-resistant anti-rutting modifier for road asphalt |
| CN106398239A (en) * | 2015-11-27 | 2017-02-15 | 梁清源 | Novel anti-rutting agent and preparation method thereof |
| CN106189290A (en) * | 2016-07-12 | 2016-12-07 | 同济大学 | Modified asphalt material, its preparation method and application for airport pavement |
| CN109370240A (en) * | 2018-10-15 | 2019-02-22 | 高秀阁 | Environment protection modified pitch and its production technology |
| CN109722046A (en) * | 2018-12-29 | 2019-05-07 | 徐州道润公路工程有限公司 | A kind of color emulsified asphalt and preparation method thereof and colored micro-surface area |
| CN112824457A (en) * | 2019-11-21 | 2021-05-21 | 中国石油化工股份有限公司 | High-viscosity asphalt modifier, high-viscosity asphalt material and preparation method thereof |
| CN112280496A (en) * | 2020-10-21 | 2021-01-29 | 江苏共创人造草坪股份有限公司 | Water-based thermoplastic adhesive and application thereof in artificial turf |
Non-Patent Citations (2)
| Title |
|---|
| 改性沥青及SMA混合料路用性能研究;杨金泉, 王京荣, 韩萍, 张晓燕;中国公路学报(第03期);第17-26页 * |
| 改性沥青在机场道面的应用分析;史保华, 蔡良才, 王声, 焦明声, 曲崇东;公路(第06期);第126-130页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115678297A (en) | 2023-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115678293B (en) | Anti-stripping agent and preparation method and application thereof | |
| CN115678297B (en) | Asphalt stripping-resistant agent and preparation method and application thereof | |
| CN109721286B (en) | Heat-resistant recycled asphalt concrete and preparation method thereof | |
| EP3237559B1 (en) | Polymer mixture, multilayer article containing same, and process of preparing multilayer article | |
| CN115678296B (en) | Asphalt stripping-resistant agent, and preparation method and application thereof | |
| CA2752971C (en) | Method for producing bituminous paving compositions | |
| CN115678291B (en) | Anti-falling agent and preparation method and application thereof | |
| CN115678295B (en) | Anti-stripping agent and preparation method and application thereof | |
| CN114486609B (en) | Method for detecting segregation degree of asphalt mixture | |
| CN115678290B (en) | Anti-stripping agent and preparation method and application thereof | |
| CN114479486B (en) | Asphalt stripping-resistant agent, and preparation method and application thereof | |
| CN115678294B (en) | Anti-stripping agent and preparation method and application thereof | |
| EP3363775B1 (en) | Method for making a granular thermoplastic filler | |
| CN114479487B (en) | Anti-shedding agent and preparation method and application thereof | |
| CN115678199A (en) | Anti-shedding agent and preparation method and application thereof | |
| CN103319753A (en) | Non-bloomed natural rubber sole composite and method for preparing corresponding sole | |
| CN114479365B (en) | Anti-shedding agent and preparation method and application thereof | |
| CN116925442A (en) | Asphalt anti-stripping aging-resistant warm mix agent and preparation method and application thereof | |
| CN114479218B (en) | Stripping-resistant agent and preparation method and application thereof | |
| CN116925441A (en) | Anti-stripping and anti-aging agent, and preparation method and application thereof | |
| CN116925490A (en) | Anti-falling-aging resistant agent and preparation method and application thereof | |
| CN115717022A (en) | High-temperature-resistant powder coating for battery trays of electric and hybrid vehicles | |
| CN114479488A (en) | Anti-stripping agent and preparation method and application thereof | |
| CN116925489A (en) | Anti-stripping aging-resistant warm-mix agent and preparation method and application thereof | |
| CN116925455A (en) | Anti-stripping and anti-aging agent, and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231222 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |