CN116790128B - High-durability modified asphalt and preparation method thereof - Google Patents
High-durability modified asphalt and preparation method thereof Download PDFInfo
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- CN116790128B CN116790128B CN202311079155.4A CN202311079155A CN116790128B CN 116790128 B CN116790128 B CN 116790128B CN 202311079155 A CN202311079155 A CN 202311079155A CN 116790128 B CN116790128 B CN 116790128B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 278
- 238000002360 preparation method Methods 0.000 title claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 255
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 85
- 239000007822 coupling agent Substances 0.000 claims abstract description 81
- 229920005989 resin Polymers 0.000 claims abstract description 72
- 239000011347 resin Substances 0.000 claims abstract description 72
- 239000008199 coating composition Substances 0.000 claims abstract description 69
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 51
- 239000011159 matrix material Substances 0.000 claims abstract description 44
- 239000003999 initiator Substances 0.000 claims abstract description 41
- 239000000203 mixture Substances 0.000 claims description 138
- 239000003822 epoxy resin Substances 0.000 claims description 104
- 229920000647 polyepoxide Polymers 0.000 claims description 104
- 238000002156 mixing Methods 0.000 claims description 82
- 230000003712 anti-aging effect Effects 0.000 claims description 46
- 239000003795 chemical substances by application Substances 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000010438 heat treatment Methods 0.000 claims description 40
- 239000002245 particle Substances 0.000 claims description 40
- 239000000835 fiber Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 23
- 239000012466 permeate Substances 0.000 claims description 21
- 239000003208 petroleum Substances 0.000 claims description 21
- 239000004593 Epoxy Substances 0.000 claims description 20
- 238000001723 curing Methods 0.000 claims description 20
- 239000008367 deionised water Substances 0.000 claims description 20
- 229910021641 deionized water Inorganic materials 0.000 claims description 20
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 20
- 239000003085 diluting agent Substances 0.000 claims description 20
- 238000007731 hot pressing Methods 0.000 claims description 20
- 239000000725 suspension Substances 0.000 claims description 20
- 239000012948 isocyanate Substances 0.000 claims description 19
- 150000002513 isocyanates Chemical class 0.000 claims description 19
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 16
- 239000004033 plastic Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000013007 heat curing Methods 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 27
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 32
- -1 TiO2 compound Chemical class 0.000 description 20
- 239000004743 Polypropylene Substances 0.000 description 18
- 239000007864 aqueous solution Substances 0.000 description 18
- 229920001155 polypropylene Polymers 0.000 description 18
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003607 modifier Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229940124543 ultraviolet light absorber Drugs 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical group CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229940092782 bentonite Drugs 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical compound CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 description 1
- 229950007917 bumetrizole Drugs 0.000 description 1
- 229910000281 calcium bentonite Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229950002083 octabenzone Drugs 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910000280 sodium bentonite Inorganic materials 0.000 description 1
- 229940080314 sodium bentonite Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (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 application relates to the field of asphalt, and particularly discloses high-durability modified asphalt and a preparation method thereof, wherein the high-durability modified asphalt comprises 200-300 parts by weight of matrix asphalt, 100-130 parts by weight of natural asphalt, 15-60 parts by weight of asphalt softener, 1-6 parts by weight of cross-linking agent, 1-6 parts by weight of coupling agent, 0.1-5 parts by weight of initiator and 5-10 parts by weight of active carbon resin coating composition. The preparation method of the application has the advantage of improved aging resistance and durability.
Description
Technical Field
The application relates to the field of asphalt, in particular to high-durability modified asphalt and a preparation method thereof.
Background
The petroleum asphalt has good cohesiveness and plasticity, so that the petroleum asphalt becomes the most common pavement material for highway construction, especially highway construction. With the development of economic construction in China, the traffic volume is rapidly increased, and the running condition of asphalt pavement faces serious tests due to overload and vehicle channelized traffic. After a few asphalt pavements are built for a long time, thermal shrinkage cracking occurs to form cracks, and the service life of the asphalt pavements is seriously influenced. Asphalt aging is a major factor affecting the service life of asphalt pavement. Asphalt aging refers to the fact that asphalt is exposed to air for a long time in the processes of storage, transportation, construction and pavement use, and volatilizes, oxidizes, decomposes, polymerizes and the like under the action of environmental factors such as heat, oxygen, sunlight and water, so that the internal molecular structure and chemical components of the asphalt are changed, the physical and chemical properties of the asphalt are promoted to be deteriorated, and the asphalt is mainly characterized in that the softening point of the asphalt is increased, the penetration is reduced, the ductility is greatly reduced and the like.
Chinese patent application 200410069166.5 discloses a method for improving the thermo-oxidative aging resistance of asphalt by adding calcium bentonite or sodium bentonite or organic bentonite to powdered styrene-butadiene rubber modified asphalt. Feng Zhengang et al investigated the effect of three ultraviolet light absorbers (Octabenzone, bumetrizole, tinuvin770,770) on asphalt aging performance. The results show that the 3 ultraviolet light absorbers can effectively improve the ultraviolet light aging resistance of asphalt, and have no obvious influence on the heat and oxygen aging resistance of asphalt [ Feng Zhengang, chen Chong, chestnut-dragon, li Xinjun, yu Jianying, the ultraviolet light absorber modifies the rheological and aging properties of asphalt, highway, 2016, (1): 206-210]. The Chinese patent application No. 200810150313.X discloses an anti-aging composite modifier for road asphalt, which consists of an anti-aging agent, an antioxidant and a light shielding agent, and improves the thermal-oxidative aging resistance of asphalt. Zhang Henglong and the like research the improvement effect of the organic vermiculite and nano TiO2 compound modifier on the ageing resistance of asphalt. Research shows that the compound modifier with different mixing amounts has an improvement effect on the short-term and long-term thermo-oxidative aging performance of asphalt, and the improvement on the ultraviolet light aging resistance can be realized only under the specific mixing amount of the compound modifier (Zhang Henglong, tan Bangyao, zhu Chongzheng. The ageing resistance research of the organic vermiculite and nano titanium dioxide compound modified asphalt. Chinese scientific and technological paper, 2016, 11 (7): 728-732). The proposal reported in the above documents only considers unilaterally to improve the heat-resistant oxygen or ultraviolet aging resistance of asphalt, or attempts to improve the heat-resistant oxygen and ultraviolet aging resistance of asphalt comprehensively through compounding of a modifier, but the proposal has high cost and less than ideal durability. Thus, there is a need to explore new methods for improving the thermo-oxidative and ultraviolet aging resistance of asphalt.
Disclosure of Invention
In order to provide improved asphalt durability, the application provides a high-durability modified asphalt and a preparation method thereof.
The high-durability modified asphalt comprises 200-300 parts by weight of matrix asphalt, 100-130 parts by weight of natural asphalt, 15-60 parts by weight of asphalt softener, 1-6 parts by weight of cross-linking agent, 1-6 parts by weight of coupling agent, 0.1-5 parts by weight of initiator and 5-10 parts by weight of active carbon resin coating composition.
The active carbon resin coating composition is used as a main anti-aging and durable component and is added into the asphalt material, and the active carbon resin coating composition contains the anti-aging component and can be released into the asphalt for a long time, so that durable anti-aging protection is formed for the asphalt, and the durability of the asphalt is improved.
Further, the resin coating material in the activated carbon resin coating composition is an epoxy resin composition and plastic fibers.
The coating material composed of the plastic fiber and the epoxy resin can ensure that the active carbon is not easy to be excessively permeated by the flowing matrix asphalt at high temperature in the preparation process of the asphalt, so that the ageing-resistant component in the active carbon is excessively dispersed, and the lasting ageing-resistant capability of the active carbon to the asphalt is reduced. The plastic fiber forms a staggered three-dimensional pore structure, the activated carbon is distributed in the three-dimensional network structure, the epoxy resin only partially permeates the surface of the three-dimensional pore structure, and the ageing-resistant component can penetrate the coating layer formed by the epoxy resin to be gradually volatilized into the asphalt, so that the durability of the asphalt is improved.
Further, the epoxy resin composition comprises 20-30 parts by weight of epoxy resin, 15-25 parts by weight of epoxy diluent AGE, 5-10 parts by weight of diethanolamine and 30-40 parts by weight of deionized water.
The epoxy resin composition has lower solid content and viscosity, can form complete blockage in the staggered three-dimensional pore structure formed by the plastic fibers, only reduces the porosity after solidification, has higher strength and has better release effect persistence of the ageing-resistant components in the activated carbon, thereby improving the durability of asphalt.
Further, the activated carbon is pretreated by soaking the activated carbon in an aging resistant agent solution for 6-12 hours and then drying.
Further, the preparation method of the activated carbon resin coating composition comprises the following steps:
step 1: stacking and hot-pressing plastic fibers to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: cutting the formed body treated in the step 3 into particles with the diameter of 1-20 mm.
Further, the asphalt softener is at least one selected from petroleum softeners and rosin softeners in a liquid state.
Further, the crosslinking agent is at least one selected from isocyanate-based crosslinking agents and alkenyl-based crosslinking agents.
Further, the coupling agent is at least one selected from silane coupling agent, titanate coupling agent, bimetallic coupling agent, phosphate coupling agent, borate coupling agent, zirconate coupling agent, aluminate coupling agent and chromium complex coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing with an asphalt softener, a cross-linking agent, a coupling agent and an initiator;
s2: mixing the mixture obtained after the step S1 of 1/2 with 1/2 of matrix asphalt, heating for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the rest of matrix asphalt of 1/2, and continuing heating and curing.
Further, the heat curing is performed at 160 to 190 ℃.
In summary, the application has the following beneficial effects:
the active carbon resin coating composition is used as a main anti-aging and durable component and is added into the asphalt material, and the active carbon resin coating composition contains the anti-aging component and can be released into the asphalt for a long time, so that durable anti-aging protection is formed for the asphalt, and the durability of the asphalt is improved.
Detailed Description
The present application will be described in further detail with reference to examples.
Example 1 a high durability modified asphalt comprising 200 parts by weight of base asphalt, 100 parts by weight of natural asphalt, 15 parts by weight of asphalt softener, 1 part by weight of cross-linking agent, 1 part by weight of coupling agent, 0.1 part by weight of initiator, and 5 parts by weight of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is selected from silane coupling agents.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 2 a high durability modified asphalt comprising 300 parts by weight of base asphalt, 100 parts by weight of natural asphalt, 15 parts by weight of asphalt softener, 1 part by weight of cross-linking agent, 1 part by weight of coupling agent, 0.1 part by weight of initiator, and 5 parts by weight of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is selected from silane coupling agents.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 3 a high durability modified asphalt comprising 300 parts by weight of base asphalt, 130 parts by weight of natural asphalt, 15 parts by weight of asphalt softener, 1 part by weight of cross-linking agent, 1 part by weight of coupling agent, 0.1 part by weight of initiator, and 5 parts by weight of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is selected from silane coupling agents.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 4 a high durability modified asphalt comprising 300 parts by weight of base asphalt, 130 parts by weight of natural asphalt, 60 parts by weight of asphalt softener, 6 parts by weight of cross-linking agent, 6 parts by weight of coupling agent, 0.1 part by weight of initiator and 5 parts by weight of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is selected from silane coupling agents.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 5 a high durability modified asphalt comprising 200 parts by weight of base asphalt, 130 parts by weight of natural asphalt, 15 parts by weight of asphalt softener, 1 part by weight of cross-linking agent, 1 part by weight of coupling agent, 5 parts by weight of initiator and 10 parts by weight of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is selected from silane coupling agents.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 6 a high durability modified asphalt comprising 300 parts by weight of base asphalt, 130 parts by weight of natural asphalt, 60 parts by weight of asphalt softener, 6 parts by weight of cross-linking agent, 6 parts by weight of coupling agent, 5 parts by weight of initiator and 10 parts by weight of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is selected from silane coupling agents.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 7 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is selected from silane coupling agents.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 8 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is selected from petroleum softeners.
The crosslinking agent is an alkenyl crosslinking agent.
The coupling agent is a chromium complex coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 9 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator, and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a borate coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 10 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator, and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a rosin softener in a liquid state.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is aluminate coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 11 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a bimetallic coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 12A high durability modified asphalt comprising 200 to 300 parts by weight of base asphalt, 100 to 130 parts by weight of natural asphalt, 15 to 60 parts by weight of asphalt softener, 1 to 6 parts by weight of cross-linking agent, 1 to 6 parts by weight of coupling agent, 0.1 to 5 parts by weight of initiator and 5 to 10 parts by weight of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in 40wt% of the aqueous solution of the anti-aging agent for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a silane coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 13 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator, and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in 10wt% of the aqueous solution of the anti-aging agent for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 20mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a silane coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 14 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 10mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a silane coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 15 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator, and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 15mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a silane coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 16 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in 60wt% of the aqueous solution of the anti-aging agent for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 10mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is a mixture of p-phenylenediamine and p-cresol with the mass ratio of 1:20.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a silane coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 17 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 10mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent adopts anti-aging agent 2246.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a silane coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Example 18 a high durability modified asphalt comprising 250 parts by weight of base asphalt, 120 parts by weight of natural asphalt, 40 parts by weight of asphalt softener, 3 parts by weight of cross-linking agent, 3 parts by weight of coupling agent, 2 parts by weight of initiator, and 9 parts of activated carbon resin coating composition.
The preparation method of the active carbon resin coating composition comprises the following steps:
pretreatment of activated carbon: the pretreatment is to soak the activated carbon in a 20wt% anti-aging agent aqueous solution for 8 hours and then dry the activated carbon.
Step 1: stacking polypropylene fibers and hot pressing to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: after the epoxy resin composition was cured, the formed body was cut into 10mm particles.
The epoxy resin composition comprises 20 parts by weight of epoxy resin, 25 parts by weight of epoxy diluent AGE, 5 parts by weight of diethanolamine and 30 parts by weight of deionized water.
The anti-aging agent is antioxidant 264.
The asphalt softener is a petroleum softener.
The crosslinking agent is an isocyanate crosslinking agent.
The coupling agent is a silane coupling agent.
A preparation method of high-durability modified asphalt comprises the following steps:
s1: crushing natural asphalt, and mixing the crushed natural asphalt with an asphalt softener, a cross-linking agent, a coupling agent and an initiator according to a proportion;
s2: mixing the mixture obtained after the step S1 of 1/2 with the matrix asphalt of 1/2, heating to 170 ℃ and keeping for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the matrix asphalt of 1/2, and continuously heating to 190 ℃ for curing.
Comparative example 1 differs from example 1 in that the pitch does not contain an activated carbon resin-coated composition.
Comparative example 2 differs from example 1 in that the bitumen does not contain a cross-linking agent and a coupling agent.
And (3) performance detection: the detection method comprises the following steps: the asphalt prepared in examples 1 to 18 and comparative examples 1 and 2 was UV aged in an Ultraviolet (UV) aging oven at 60 ℃ for 6 days, and the viscosities before and after UV aging of the asphalt were tested as a and b, respectively, with a viscosity aging index c=100% × (b-a)/a, and a softening point temperature increment before and after aging.
The results are shown in the following table:
TABLE 1
| Examples | Viscosity ageing index | Softening point temperature increment |
| Example 1 | 51.4% | 7.1℃ |
| Example 2 | 51.6% | 8.9℃ |
| Example 3 | 52.5% | 6.6℃ |
| Example 4 | 52.5% | 8.3℃ |
| Example 5 | 53.6% | 7.2℃ |
| Example 6 | 53.3% | 8.9℃ |
| Example 7 | 52.1% | 7.5℃ |
| Example 8 | 54.5% | 6.9℃ |
| Example 9 | 53.5% | 6.2℃ |
| Example 10 | 51.8% | 7.1℃ |
| Example 11 | 51.4% | 7.5℃ |
| Example 12 | 48.9% | 5.2℃ |
| Example 13 | 49.2% | 6.8℃ |
| Example 14 | 50.1% | 5.3℃ |
| Example 15 | 49.9% | 6.6℃ |
| Example 16 | 48.8% | 4.8℃ |
| Example 17 | 51.5% | 6.2℃ |
| Example 18 | 48.2% | 6.4℃ |
| Comparative example 1 | 79.6% | 12.8℃ |
| Comparative example 2 | 77.3% | 13.5℃ |
Conclusion: as can be seen from Table 1, the addition of the activated carbon resin coating composition in the present application can improve the aging resistance of asphalt. And after the corresponding cross-linking agent and the coupling agent are added, the active carbon resin coating composition has better ageing resistance effect on 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 (4)
1. The high-durability modified asphalt is characterized by comprising 200-300 parts by weight of matrix asphalt, 100-130 parts by weight of natural asphalt, 15-60 parts by weight of asphalt softener, 1-6 parts by weight of cross-linking agent, 1-6 parts by weight of coupling agent, 0.1-5 parts by weight of initiator and 5-10 parts by weight of active carbon resin coating composition;
the crosslinking agent is at least one selected from isocyanate crosslinking agents and alkenyl crosslinking agents;
the coupling agent is at least one selected from silane coupling agent, titanate coupling agent, bimetallic coupling agent, phosphate coupling agent, borate coupling agent, zirconate coupling agent, aluminate coupling agent and chromium complex coupling agent;
the resin coating material in the active carbon resin coating composition is an epoxy resin composition and plastic fibers;
the epoxy resin composition comprises 20-30 parts by weight of epoxy resin, 15-25 parts by weight of epoxy diluent AGE, 5-10 parts by weight of diethanolamine and 30-40 parts by weight of deionized water;
the activated carbon is pretreated by soaking the activated carbon in an anti-aging agent solution for 6-12 hours and then drying;
the preparation method of the active carbon resin coating composition comprises the following steps:
step 1: stacking and hot-pressing plastic fibers to form a formed body;
step 2: the suspension liquid obtained by mixing the activated carbon particles with water passes through the forming body at the flow rate of 100LMH until the pressure drop reaches 100 KPa;
step 3: after the formed body treated in the step 2 is dried, pouring the epoxy resin composition on the surface of the formed body until the epoxy resin composition completely permeates the formed body;
step 4: cutting the formed body treated in the step 3 into particles with the diameter of 1-20 mm.
2. The high-durability modified asphalt according to claim 1, wherein the asphalt softener is at least one selected from the group consisting of petroleum-based softeners and rosin-based softeners in a liquid state.
3. A method for preparing a high durability modified asphalt according to any one of claims 1-2, comprising the steps of:
s1: crushing natural asphalt, and mixing with an asphalt softener, a cross-linking agent, a coupling agent and an initiator;
s2: mixing the mixture obtained after the step S1 of 1/2 with 1/2 of matrix asphalt, heating for 10-15min, adding the active carbon resin coating composition, mixing the mixture obtained after the step S1 of 1/2 and the rest of matrix asphalt of 1/2, and continuing heating and curing.
4. A method for producing a high durability modified asphalt according to claim 3 wherein the heat curing is performed at 160-190 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108148419A (en) * | 2016-12-05 | 2018-06-12 | 中国石油天然气股份有限公司 | Anti-aging agent and anti-aging asphalt |
| CN108178571A (en) * | 2017-12-13 | 2018-06-19 | 苍南县交通建设工程有限公司 | A kind of high intensity ground surface material and preparation method thereof |
| CN108641386A (en) * | 2018-05-30 | 2018-10-12 | 广东华路交通科技有限公司 | A kind of environment-friendly type anti-rutting modified asphalt and preparation method thereof |
| CN109762352A (en) * | 2018-12-24 | 2019-05-17 | 湖南鑫长胜材料科技有限公司 | A kind of epoxy resin modified asphalt and preparation method |
| CN113444373A (en) * | 2021-06-03 | 2021-09-28 | 李威风 | Composition for modifying asphalt, modified asphalt, method for producing same, and asphalt mixture |
| CN114015246A (en) * | 2021-10-25 | 2022-02-08 | 河北交规院瑞志交通技术咨询有限公司 | Modified asphalt composite particle and preparation thereof, modified asphalt and application thereof |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108148419A (en) * | 2016-12-05 | 2018-06-12 | 中国石油天然气股份有限公司 | Anti-aging agent and anti-aging asphalt |
| CN108178571A (en) * | 2017-12-13 | 2018-06-19 | 苍南县交通建设工程有限公司 | A kind of high intensity ground surface material and preparation method thereof |
| CN108641386A (en) * | 2018-05-30 | 2018-10-12 | 广东华路交通科技有限公司 | A kind of environment-friendly type anti-rutting modified asphalt and preparation method thereof |
| CN109762352A (en) * | 2018-12-24 | 2019-05-17 | 湖南鑫长胜材料科技有限公司 | A kind of epoxy resin modified asphalt and preparation method |
| CN113444373A (en) * | 2021-06-03 | 2021-09-28 | 李威风 | Composition for modifying asphalt, modified asphalt, method for producing same, and asphalt mixture |
| CN114015246A (en) * | 2021-10-25 | 2022-02-08 | 河北交规院瑞志交通技术咨询有限公司 | Modified asphalt composite particle and preparation thereof, modified asphalt and application thereof |
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