CN115710432A - Hydrophobic durable high-viscosity modified asphalt and preparation method thereof - Google Patents
Hydrophobic durable high-viscosity modified asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN115710432A CN115710432A CN202211612941.1A CN202211612941A CN115710432A CN 115710432 A CN115710432 A CN 115710432A CN 202211612941 A CN202211612941 A CN 202211612941A CN 115710432 A CN115710432 A CN 115710432A
- Authority
- CN
- China
- Prior art keywords
- hydrophobic
- asphalt
- modified asphalt
- weather
- durable high
- 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.)
- Granted
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 122
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 79
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000003607 modifier Substances 0.000 claims abstract description 29
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 23
- 239000003381 stabilizer Substances 0.000 claims abstract description 22
- 239000011159 matrix material Substances 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 43
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 19
- 238000010008 shearing Methods 0.000 claims description 19
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 19
- 229910052717 sulfur Inorganic materials 0.000 claims description 19
- 239000011593 sulfur Substances 0.000 claims description 19
- 239000001993 wax Substances 0.000 claims description 18
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 claims description 17
- 239000010692 aromatic oil Substances 0.000 claims description 17
- 239000004386 Erythritol Substances 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 235000019414 erythritol Nutrition 0.000 claims description 11
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 claims description 11
- 229940009714 erythritol Drugs 0.000 claims description 11
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- UNXHWFMMPAWVPI-QWWZWVQMSA-N D-threitol Chemical compound OC[C@@H](O)[C@H](O)CO UNXHWFMMPAWVPI-QWWZWVQMSA-N 0.000 claims description 6
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 6
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 5
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- HEBKCHPVOIAQTA-QWWZWVQMSA-N D-arabinitol Chemical compound OC[C@@H](O)C(O)[C@H](O)CO HEBKCHPVOIAQTA-QWWZWVQMSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- JVWLUVNSQYXYBE-UHFFFAOYSA-N Ribitol Natural products OCC(C)C(O)C(O)CO JVWLUVNSQYXYBE-UHFFFAOYSA-N 0.000 claims description 2
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 239000004203 carnauba wax Substances 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- HEBKCHPVOIAQTA-ZXFHETKHSA-N ribitol Chemical compound OC[C@H](O)[C@H](O)[C@H](O)CO HEBKCHPVOIAQTA-ZXFHETKHSA-N 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 239000000811 xylitol Substances 0.000 claims description 2
- 235000010447 xylitol Nutrition 0.000 claims description 2
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 2
- 229960002675 xylitol Drugs 0.000 claims description 2
- 239000005543 nano-size silicon particle Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 12
- 239000010410 layer Substances 0.000 description 11
- 239000002086 nanomaterial Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 238000005303 weighing Methods 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 230000003712 anti-aging effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- -1 silane compound Chemical class 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000003075 superhydrophobic effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 150000005846 sugar alcohols Chemical class 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 230000036619 pore blockages Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the technical field of road asphalt, in particular to hydrophobic durable high-viscosity modified asphalt and a preparation method thereof, wherein the hydrophobic durable high-viscosity modified asphalt comprises the following components in parts by weight: 85-90 parts of matrix asphalt, 4.0-6.5 parts of a high-molecular modifier, 0.1-1.0 part of a hydrophobic weather-resistant main agent, 0.4-2.0 parts of a hydrophobic weather-resistant auxiliary agent A, 0.8-1.5 parts of a hydrophobic weather-resistant auxiliary agent B, 1.0-5.0 parts of an organic viscosity reducer and 0.1-1.0 part of a stabilizer.
Description
Technical Field
The invention relates to the technical field of road asphalt, in particular to hydrophobic durable high-viscosity modified asphalt and a preparation method thereof.
Background
The traditional OGFC drainage type asphalt concrete pavement is in a high-performance asphalt pavement structure form, good drainage performance under rainwater weather is realized by setting a large porosity (15% -20%) on the asphalt pavement, and safety and comfort of vehicles running under rainwater weather are effectively guaranteed. However, in the long-term service process of the drainage type pavement, due to the influence of dust deposition, the pores of the pavement structure layer are blocked to different degrees, and the drainage performance and the noise reduction performance of the road are greatly reduced. In the early foreign countries, a small-pore structure layer is used for preventing, but the occurrence of pore blockage phenomenon still can not be effectively avoided, and the road surface drainage capability and the sound absorption and noise reduction capability are greatly reduced along with the pore blockage, so that the corresponding application can not be met.
In patent CN112012073A, a method for preparing a super-hydrophobic solution by using a silane compound and nano white carbon black sprays the super-hydrophobic solution on the surface of the pore structures of the upper layer and the lower layer of a double-layer drainage asphalt pavement through a high-pressure spray gun, so that the surface of an asphalt mixture has the super-hydrophobic function, and meanwhile, water flow in pores is used for cleaning, thereby achieving the self-cleaning effect and improving the drainage performance of the double-layer drainage asphalt pavement. Has better hydrophobic effect, simple operation and convenient use. But use solution sprays on the road surface, and the hydrophobic requirement of the difficult surface course that satisfies behind the road surface wearing and tearing, the hydrophobic top layer of lower floor can be covered to glutinous layer oil in the double-deck road surface structure simultaneously, leads to lower floor to lose hydrophobic characteristic, does not possess better whole hydrophobic effect, and the dust also can stop in the hole depressed part after the rainwash, and the deposit blocks up, leads to the surface course to be difficult to satisfy the user demand gradually. Patent CN108102398B uses biological asphalt and hard asphalt to compound, the hard asphalt is modified by a low-dosage warm mixing agent, the biological asphalt is modified by an antioxidant, and then the two are compounded and added with a photocatalyst to form the bio-based modified asphalt, which has better aging resistance and warm mixing characteristics, but because the asphalt body is black and easily reflects sunlight, and most of the photocatalyst such as titanium dioxide is suspended in the asphalt, the surface catalyst of the asphalt film layer is less, and needs to absorb sunlight to play a role in degradation, the degradation function is reduced, and the self-cleaning reaction is difficult to promote. At present, the super-hydrophobic and self-cleaning process is mainly applied to the field of traffic pavements by taking a surface coating and a protective layer of an asphalt pavement mixture as main materials, but the coating cannot deeply penetrate into the bottom of the pavement, and for a drainage type asphalt pavement, water flow is mainly discharged through pores of the asphalt mixture, so that the whole drainage application requirement is difficult to meet.
Based on the defects of the modified asphalt, the inventor creates a hydrophobic durable high-viscosity modified asphalt and a preparation method thereof based on practical experience and professional knowledge of designing and manufacturing the product for many years and by matching with the application of theory and actively researching and creating the hydrophobic durable high-viscosity modified asphalt, so that the modified asphalt has higher practicability.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the hydrophobic durable high-viscosity modified asphalt and the preparation method thereof are provided, and the asphalt has excellent hydrophobic property, low viscosity and excellent ageing resistance by optimizing components and processes.
In order to achieve the purpose, the invention adopts the technical scheme that: the hydrophobic durable high-viscosity modified asphalt comprises the following components in parts by weight:
85-90 parts of matrix asphalt
4.0 to 6.5 portions of macromolecular modifier
0.1 to 1.0 portion of hydrophobic weather-resistant main agent
0.4 to 2.0 portions of hydrophobic weather-resistant auxiliary agent A
0.8 to 1.5 portions of hydrophobic weather-resistant auxiliary agent B
1.0 to 5.0 portions of organic viscosity reducer
0.1 to 1.0 portion of stabilizer
Furthermore, the matrix asphalt is any one or more of 70# straight-run asphalt and 90# straight-run matrix asphalt, the asphalt is refined and produced by adopting heavy crude oil, and the asphalt has high quality content and excellent high-temperature performance and aging resistance.
Further, the polymer modifier is one or more of styrene butadiene rubber, styrene-butadiene-styrene block copolymer, hydrogenated styrene-butadiene block copolymer and styrene-isoprene-styrene.
Furthermore, the hydrophobic weather-resistant main agent is any one or more of graphite-like phase carbon nitride, nano titanium dioxide and silicon dioxide nano particles, molecular oxygen is effectively activated through the graphite-like phase carbon nitride, and generated superoxide radical is used for photocatalytic conversion of organic functional groups and photocatalytic degradation of organic pollutants, and can effectively clean organic matters such as leaves, paper scraps and the like accumulated in pores when being applied to high-viscosity asphalt to achieve a self-cleaning function.
Furthermore, the hydrophobic weather-resistant auxiliary agent A is any one or more of PE wax, fischer-Tropsch wax, oxidized polyethylene wax, palm wax and paraffin wax, the wax materials are easily adsorbed with the nano material and have good viscosity reduction characteristics, the dispersion of the nano material is facilitated under the condition of a shearing process, the agglomeration phenomenon caused by the large specific surface area of the nano material is effectively solved, the unique physical precipitation characteristic is realized, the nano material is precipitated at about 100 ℃, and the adhesion rate of the nano material on the surface of an asphalt film layer is effectively improved.
Furthermore, the hydrophobic weather-resistant auxiliary agent B is one or more of threitol, xylitol, sorbitol, arabitol, ribitol and erythritol, the hydrophobic weather-resistant auxiliary agent B such as threitol is a phase change material, is converted into a liquid state at high temperature, greatly reduces the high-temperature viscosity of the modified asphalt, is separated out at one time with the hydrophobic weather-resistant main agent in the process of cooling to normal temperature, and is applied to the surface of the asphalt under the action of two times of wrapping and separation to form a micro-nano layer concave-convex layer.
Furthermore, the organic viscosity reducer is aromatic oil which is a petroleum extraction product and has good dispersibility with asphalt, and the unique high aromatic hydrocarbon component can be well dissolved with components in the asphalt, so that the swelling of the modifier can be promoted to form a network interpenetrating structure, the swelling effect of the modifier is improved, and the development time is shortened.
Furthermore, the stabilizer is sulfur, sulfur components in the sulfur can perform a replacement reaction with hydrogen bonds in the modifier in the modified asphalt, so that the stability of a space network system of the modifier and the asphalt is improved, the phenomena of thermal decomposition and segregation are not easy to occur, and the storage stability of the modified asphalt is improved.
The invention also discloses a preparation method of the hydrophobic durable high-viscosity modified asphalt, which is used for preparing the hydrophobic durable high-viscosity modified asphalt and comprises the following steps:
s1, heating matrix asphalt at 170 +/-2 ℃ to a flowing state, stirring and preheating for 0.5h, adding a polymer modifier and a hydrophobic weather-resistant main agent, shearing for 0.5 to 1.0h at 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at 175 +/-5 ℃;
s2, adding an organic viscosity reducer, and stirring and developing for 0.5-1.0h;
s3, adding a stabilizer, and stirring and developing at 175 +/-5 ℃ for 3-5h;
s4, adding the hydrophobic weather-resistant auxiliary agent A and the hydrophobic weather-resistant auxiliary agent B, and stirring and developing for 1-3h at 175 +/-5 ℃ to obtain the hydrophobic durable high-viscosity modified asphalt.
The invention has the beneficial effects that: the hydrophobic durable high-viscosity asphalt provided by the invention is different from the traditional means of improving the mixing amount of a modifier and the like to improve the anti-aging performance and viscosity of the asphalt, the nano particles are used as a hydrophobic weather-resistant main agent, the wax material and the sugar alcohol material are respectively used as auxiliary agents, the viscosity improving effect of the nano particles on the modified asphalt under the condensation crystallization action of the sugar alcohol material is better, the nano material has higher activity and is easier to adsorb light components in the asphalt to cause the viscosity of the asphalt to be higher, the phase change characteristic of the wax material is used for reducing the high-temperature viscosity of the modified asphalt and improving the low-temperature viscosity of the asphalt, the nano material is sheared together with the nano material to be beneficial to uniform dispersion of the nano material, the light components in the asphalt are adsorbed by the nano material and are separated out on the surface of the asphalt under the two separation actions of the sugar alcohol material and the wax material, the light components in the asphalt are adsorbed and fixed on a wax film surface layer by a high-activity nano material group, the asphalt components and the modifier which are in contact with stone are relatively increased, the high-viscosity of the high-viscosity modifier is higher, the prepared high-viscosity of the asphalt is higher than 200000 pas, the softening point is higher than 85 ℃, the ductility after the low-temperature aging, the SBS, the social benefit is reduced by a certain amount of the SBS, and the social benefit is reduced.
Detailed Description
In the examples of the present invention, commercially available material sources are as follows:
SBS modifier: 791h modifier of Hunan Yueyang Ba Ling petrochemical company Limited
Graphite-like phase carbon nitride: guangzhou Quanfeng chemical technology Limited
Nano titanium dioxide: beijing Deke island gold science and technology Co Ltd
PE wax: qingdao Sainuo chemical Co Ltd
Oxidized polyethylene wax: qingdao Sainuo chemical Co Ltd
Threitol: shanghai-derived leaf Biotechnology Co., ltd
Erythritol: shandong three-component Biotechnology Ltd
Aromatic oil: wuhan Kangrun chemical Limited liability company
A sulfur stabilizer: luoyangchen petrochemical Co Ltd
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
The hydrophobic durable high-viscosity modified asphalt provided by the embodiment specifically comprises the following preparation steps:
s1, weighing 884g of Sitai 70# matrix asphalt, 20g of PE wax, 5g of nano titanium dioxide, 40g of SBS modifier, 15g of threitol, 10g of aromatic oil and 1g of sulfur stabilizer;
s2, heating the 70# matrix asphalt at the temperature of 170 +/-2 ℃ to a flowing state, stirring and preheating for 0.5h, adding an SBS modifier, PE wax and nano titanium dioxide, shearing for 0.5h at the temperature of 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at the temperature of 175 +/-5 ℃;
s3, adding aromatic oil, and stirring for development for 0.5h;
s4, adding a sulfur stabilizer, and stirring and developing for 3 hours at the temperature of 175 +/-5 ℃;
s5, adding threitol, and stirring and developing for 2 hours at the temperature of 175 +/-5 ℃ to obtain the hydrophobic durable high-viscosity modified asphalt.
Example 2
The hydrophobic durable high-viscosity modified asphalt provided by the embodiment specifically comprises the following preparation steps:
s1, weighing 883g of Bilong 90# matrix asphalt, 4g of oxidized polyethylene wax, 1g of graphite-like phase carbon nitride particles, 65g of SBS modifier, 15g of erythritol, 30g of aromatic oil and 2g of sulfur stabilizer;
s2, heating the 90# matrix asphalt to a flowing state at the temperature of 170 +/-2 ℃, stirring and preheating for 0.5h, adding an SBS modifier, oxidized polyethylene wax and graphite-like phase carbon nitride, shearing for 1.0h at the temperature of 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at the temperature of 175 +/-5 ℃;
s3, adding aromatic oil, and stirring for development for 0.5h;
s4, adding a sulfur stabilizer, and stirring and developing for 5 hours at the temperature of 175 +/-5 ℃;
s5, adding erythritol, and stirring and developing at 175 +/-5 ℃ for 3 hours to obtain the hydrophobic durable high-viscosity modified asphalt.
Example 3
The hydrophobic durable high-viscosity modified asphalt provided by the embodiment specifically comprises the following preparation steps:
s1, weighing 867g of Bilong 90# matrix asphalt, 10g of PE wax, 10g of nano titanium dioxide, 65g of SBS modifier, 8g of erythritol, 50g of aromatic oil and 10g of sulfur stabilizer;
s2, heating the 70# matrix asphalt at the temperature of 170 +/-2 ℃ to a flowing state, stirring and preheating for 0.5h, adding an SBS modifier, PE wax and nano titanium dioxide, shearing for 0.5h at the temperature of 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at the temperature of 175 +/-5 ℃;
s3, adding aromatic oil, and stirring for development for 0.5h;
s4, adding a sulfur stabilizer, and stirring and developing for 4 hours at the temperature of 175 +/-5 ℃;
s5, adding erythritol, and stirring and developing at 175 +/-5 ℃ for 2h to obtain the hydrophobic durable high-viscosity modified asphalt.
Example 4
The preparation method of the hydrophobic durable high-viscosity modified asphalt provided by the embodiment includes the following specific steps:
s1, weighing 878g of Sitai 70# matrix asphalt, 5g of polyethylene wax, 5g of nano titanium dioxide, 55g of SBS modifier, 15g of erythritol, 25g of aromatic oil and 2g of sulfur stabilizer;
s2, heating the 70# matrix asphalt at the temperature of 170 +/-2 ℃ to a flowing state, stirring and preheating for 0.5h, adding an SBS modifier, polyethylene wax and nano titanium dioxide, shearing for 0.5h at the temperature of 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at the temperature of 175 +/-5 ℃;
s3, adding aromatic oil, and stirring and developing for 1.0h;
s4, adding a sulfur stabilizer, and stirring and developing for 3 hours at the temperature of 175 +/-5 ℃;
s5, adding erythritol, and stirring and developing at 175 +/-5 ℃ for 1.5 hours to obtain the hydrophobic durable high-viscosity modified asphalt.
Comparative example 1
The modified asphalt provided by the embodiment specifically comprises the following preparation steps:
s1, weighing 55g of linear SBS modifier, 918g of Bilong 90# matrix asphalt, 25g of aromatic oil and 2g of sulfur stabilizer;
s2, heating the 70# matrix asphalt at the temperature of 170 +/-2 ℃ to a flowing state, stirring and preheating for 0.5h, adding an SBS modifier, shearing for 0.5h at the temperature of 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at the temperature of 175 +/-5 ℃;
s3, adding aromatic oil, and stirring and developing for 1.0h;
s4, adding a sulfur stabilizer, and stirring and developing at 175 +/-5 ℃ for 4.5 hours to obtain the modified asphalt.
Comparative example 2
The modified asphalt provided by the embodiment specifically comprises the following preparation steps:
s1, weighing 55g of linear SBS modifier, 903g of Bilong 90# matrix asphalt, 15g of erythritol, 25g of aromatic oil and 2g of sulfur stabilizer;
s2, heating the 70# matrix asphalt at the temperature of 170 +/-2 ℃ to a flowing state, stirring and preheating for 0.5h, adding an SBS modifier, shearing for 0.5h at the temperature of 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at the temperature of 175 +/-5 ℃;
s3, adding aromatic oil, and stirring and developing for 1.0h;
s4, adding a sulfur stabilizer, and stirring and developing for 3 hours at the temperature of 175 +/-5 ℃;
s5, adding erythritol, and stirring and developing at 175 +/-5 ℃ for 1.5 hours to obtain the modified asphalt.
Comparative example 3
The modified asphalt provided by the embodiment specifically comprises the following preparation steps:
s1, weighing 55g of linear SBS modifier, 908g of Bilong 90# matrix asphalt, 5g of polyethylene wax, 5g of nano titanium dioxide, 25g of aromatic oil and 2g of sulfur stabilizer;
s2, heating the 70# matrix asphalt at the temperature of 170 +/-2 ℃ to a flowing state, stirring and preheating for 0.5h, adding an SBS modifier, polyethylene wax and nano titanium dioxide, shearing for 0.5h at the temperature of 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at the temperature of 175 +/-5 ℃;
s3, adding aromatic oil, and stirring and developing for 1.0h;
s4, adding a sulfur stabilizer, and stirring and developing at 175 +/-5 ℃ for 4.5 hours to obtain the modified asphalt.
The test results of the above examples and comparative examples are shown in table 1 below.
TABLE 1 comparative examples Performance test results
Compared with examples 1-4, the hydrophobic weather-resistant main agent, the hydrophobic weather-resistant auxiliary agent A and the hydrophobic weather-resistant auxiliary agent B are removed from the components, the hydrophobic weather-resistant main agent is a main component of the material for resisting aging and reducing a sliding angle, the sliding angle is an index for representing the wetting characteristic of the material, and under the condition that other conditions are not changed, the smaller the value is, the easier the water drops roll off. As can be seen from the data in the table, after the hydrophobic weather-resistant agent is removed from the asphalt, the sliding angle between the asphalt surface and water is increased from 33 degrees to 68 degrees, and the sliding angle is greatly increased, which indicates that water drops are difficult to slide on the asphalt surface and cannot effectively flow; the penetration ratio of the asphalt is reduced, the reduction degree is about 13 percent, which shows that the anti-aging performance of the asphalt is reduced to some extent; the dynamic viscosity value of the asphalt at 60 ℃ is reduced to a certain extent, the bonding property of the material is reduced by about 39 percent, and the reduction amplitude is large, which shows that the bonding property of the asphalt is greatly improved after the hydrophobic weather-resistant agent is added into the asphalt.
Compared with the compositions of examples 1-4, the hydrophobic weather-resistant main agent and the hydrophobic weather-resistant auxiliary agent A are reduced in the components of comparative example 2, and the penetration ratio of the asphalt is reduced by about 10%, which shows that the anti-aging performance of the asphalt is attenuated; the sliding angle of the asphalt is increased to 52 degrees, which shows that the hydrophobic weather-resistant main agent and the hydrophobic weather-resistant auxiliary agent A can reduce the sliding angle of water and the asphalt surface.
Compared with the examples 1 to 4, the hydrophobic weather-resistant auxiliary agent B is reduced in the components, and the hydrophobic weather-resistant auxiliary agent B can effectively cooperate with the hydrophobic weather-resistant main agent and the hydrophobic weather-resistant auxiliary agent A in the asphalt to form a hydrophobic weather-resistant coating together, the hydrophobic weather-resistant auxiliary agent B is absent, the anti-aging performance of the asphalt surface can be improved only, but the weather-resistant coating cannot be effectively formed, the penetration degree of the asphalt is improved compared with that of the comparative example 2, and the sliding angle reduction amplitude is larger than that of the comparative example 2, so that the anti-aging performance and certain hydrophobic characteristic of the asphalt can be improved by adding the hydrophobic weather-resistant auxiliary agent B into the asphalt, but the improvement amplitude is limited.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The hydrophobic durable high-viscosity modified asphalt is characterized by comprising the following components in parts by weight:
85-90 parts of matrix asphalt
4.0 to 6.5 portions of macromolecular modifier
0.1 to 1.0 portion of hydrophobic weather-resistant main agent
0.4 to 2.0 portions of hydrophobic weather-resistant auxiliary agent A
0.8 to 1.5 portions of hydrophobic weather-resistant auxiliary agent B
1.0 to 5.0 portions of organic viscosity reducer
0.1 to 1.0 portion of stabilizer.
2. The hydrophobic durable high-viscosity modified asphalt according to claim 1, wherein the base asphalt is any one or more of 70# straight-run asphalt and 90# straight-run base asphalt.
3. The hydrophobic durable high-viscosity modified asphalt according to claim 1, wherein the polymer modifier is one or more of styrene-butadiene rubber, styrene-butadiene-styrene block copolymer, hydrogenated styrene-butadiene block copolymer, styrene-isoprene-styrene.
4. The hydrophobic durable high-viscosity modified asphalt according to claim 1, wherein the hydrophobic weather-resistant main agent is any one or more of graphite-like phase carbon nitride, nano titanium dioxide and nano silicon dioxide particles.
5. The hydrophobic durable high viscosity modified asphalt according to claim 1, wherein the hydrophobic weather-resistant auxiliary A is any one or more of PE wax, fischer-Tropsch wax, oxidized polyethylene wax, palm wax and paraffin wax.
6. The hydrophobic durable high-viscosity modified asphalt according to claim 1, wherein the hydrophobic weather-resistant auxiliary B is any one or more of threitol, xylitol, sorbitol, arabitol, ribitol and erythritol.
7. The hydrophobic durable high viscosity modified asphalt according to claim 1, wherein the organic viscosity reducer is an aromatic oil.
8. The hydrophobic durable high-viscosity modified asphalt according to claim 1, wherein the stabilizer is sulfur.
9. A method for preparing the hydrophobic durable high-viscosity modified asphalt according to any one of claims 1 to 8, comprising the following steps:
s1, heating matrix asphalt at the temperature of 170 +/-2 ℃ to a flowing state, stirring and preheating for 0.5h, adding a polymer modifier, a hydrophobic weather-resistant main agent and a hydrophobic weather-resistant auxiliary agent A, shearing for 0.5-1.0h at the temperature of 175 +/-2 ℃ by using a shearing machine, and then stirring and developing for 2h at the temperature of 175 +/-5 ℃;
s2, adding an organic viscosity reducer, and stirring and developing for 0.5-1.0h;
s3, adding a stabilizer, and stirring and developing at 175 +/-5 ℃ for 3-5h;
s4, adding the hydrophobic weather-resistant auxiliary agent B, and stirring and developing for 1-3h at the temperature of 175 +/-5 ℃ to obtain the hydrophobic durable high-viscosity modified asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211612941.1A CN115710432B (en) | 2022-12-15 | 2022-12-15 | Hydrophobic durable high-viscosity modified asphalt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211612941.1A CN115710432B (en) | 2022-12-15 | 2022-12-15 | Hydrophobic durable high-viscosity modified asphalt and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115710432A true CN115710432A (en) | 2023-02-24 |
| CN115710432B CN115710432B (en) | 2024-04-19 |
Family
ID=85236006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211612941.1A Active CN115710432B (en) | 2022-12-15 | 2022-12-15 | Hydrophobic durable high-viscosity modified asphalt and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115710432B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117004249A (en) * | 2023-06-21 | 2023-11-07 | 宜都兴发化工有限公司 | Method for preparing modified light calcium carbonate from phosphogypsum |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004244548A (en) * | 2003-02-14 | 2004-09-02 | Toho Rika Kk | Asphalt adhesion-preventing agent |
| CN104559260A (en) * | 2015-01-08 | 2015-04-29 | 吴江华威特种油有限公司 | Heat-resistant modified asphalt |
| WO2016087498A1 (en) * | 2014-12-05 | 2016-06-09 | Akzo Nobel Chemicals International B.V. | Polymer stabilizers for bituminous emulsions |
| CN106479271A (en) * | 2016-10-18 | 2017-03-08 | 苏州吉谷新材料有限公司 | Prevent from blocking the heat sublimation ink of printhead |
| CN107118575A (en) * | 2017-04-14 | 2017-09-01 | 长安大学 | Azotized carbon nano piece improves the application of pitch ageing resistace |
| CN109880121A (en) * | 2019-02-22 | 2019-06-14 | 湖南鑫长胜材料科技有限公司 | A kind of emulsified asphalt and preparation method thereof |
| CN110499036A (en) * | 2019-09-29 | 2019-11-26 | 河北省交通规划设计院 | A kind of nano modified alphalt and preparation method thereof |
| CN111393865A (en) * | 2020-05-27 | 2020-07-10 | 吴碧玉 | High-viscosity modified asphalt and preparation method thereof |
| CN112095926A (en) * | 2020-08-27 | 2020-12-18 | 上海建材集团防水材料有限公司 | Glass fiber base asphalt tile and preparation method thereof |
| CN113461977A (en) * | 2020-09-22 | 2021-10-01 | 闵珩 | High-softening-point asphalt particles |
| CN114276692A (en) * | 2021-12-18 | 2022-04-05 | 中国路桥工程有限责任公司 | Special modified asphalt suitable for tropical asphalt pavement and preparation method thereof |
-
2022
- 2022-12-15 CN CN202211612941.1A patent/CN115710432B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004244548A (en) * | 2003-02-14 | 2004-09-02 | Toho Rika Kk | Asphalt adhesion-preventing agent |
| WO2016087498A1 (en) * | 2014-12-05 | 2016-06-09 | Akzo Nobel Chemicals International B.V. | Polymer stabilizers for bituminous emulsions |
| CN104559260A (en) * | 2015-01-08 | 2015-04-29 | 吴江华威特种油有限公司 | Heat-resistant modified asphalt |
| CN106479271A (en) * | 2016-10-18 | 2017-03-08 | 苏州吉谷新材料有限公司 | Prevent from blocking the heat sublimation ink of printhead |
| CN107118575A (en) * | 2017-04-14 | 2017-09-01 | 长安大学 | Azotized carbon nano piece improves the application of pitch ageing resistace |
| CN109880121A (en) * | 2019-02-22 | 2019-06-14 | 湖南鑫长胜材料科技有限公司 | A kind of emulsified asphalt and preparation method thereof |
| CN110499036A (en) * | 2019-09-29 | 2019-11-26 | 河北省交通规划设计院 | A kind of nano modified alphalt and preparation method thereof |
| CN111393865A (en) * | 2020-05-27 | 2020-07-10 | 吴碧玉 | High-viscosity modified asphalt and preparation method thereof |
| CN112095926A (en) * | 2020-08-27 | 2020-12-18 | 上海建材集团防水材料有限公司 | Glass fiber base asphalt tile and preparation method thereof |
| CN113461977A (en) * | 2020-09-22 | 2021-10-01 | 闵珩 | High-softening-point asphalt particles |
| CN114276692A (en) * | 2021-12-18 | 2022-04-05 | 中国路桥工程有限责任公司 | Special modified asphalt suitable for tropical asphalt pavement and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117004249A (en) * | 2023-06-21 | 2023-11-07 | 宜都兴发化工有限公司 | Method for preparing modified light calcium carbonate from phosphogypsum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115710432B (en) | 2024-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115710432B (en) | Hydrophobic durable high-viscosity modified asphalt and preparation method thereof | |
| CN100596285C (en) | A recapitalization generating oil hydrogenation catalysts and its preparing method | |
| CN111944354B (en) | Anti-aging agent and application thereof, elastomer modified asphalt waterproof coiled material coating material and preparation method thereof, and modified asphalt waterproof coiled material | |
| CN104030609B (en) | The special asphalt compound suppressing drainage asphalt pavement building stones to disperse and preparation method | |
| CN103497481A (en) | Colored asphalt cementing material and preparation method thereof | |
| CN101260320A (en) | Selectivity hydrodeolefin catalyst used for continuously reforming gasoline and preparation method thereof | |
| AU2002248622A1 (en) | Process for selective hydrogenation of alkynes and catalyst therefor | |
| CN102010184B (en) | Ceramic powder composition and slurry, catalyst and carrier as well as preparation method and application | |
| CN110872447B (en) | High-viscosity asphalt material for purifying automobile exhaust and preparation method thereof | |
| KR100840708B1 (en) | Asphalt modifier containing blowing agent and asphalt composition containing thereof | |
| CN102277048A (en) | Self-cleaning polytetrafluoroethylene FEVE (fluoralkene alkyl vinyl ether or ester) coating and preparation method thereof | |
| CN101817982A (en) | Nanoscale organized montmorillonite and SBS composite modified asphalt and preparation method thereof | |
| CN108690478A (en) | A kind of anticorrosive paint and preparation method thereof for flue gas desulfurization device | |
| EP1999237B1 (en) | Process to prepare an aviation fuel and an automotive gas oil | |
| CN113105747B (en) | Low-temperature-resistant modified asphalt suitable for alpine regions and preparation method thereof | |
| CN101121899A (en) | Selectivity hydrogenation method for whole fraction crack petroleum | |
| CN107474790B (en) | A kind of waterproof color cementitious matter and preparation method thereof, waterproof roll | |
| US4443570A (en) | Asphalt compositions | |
| CN108579703B (en) | Road surface adsorbing material | |
| CN113773887A (en) | Desulfurizing agent for fuel oil, preparation method thereof and application of oil desulfurization residue in road base material | |
| CN111675914A (en) | Rubber asphalt and preparation method thereof | |
| EP2478057B1 (en) | Storage stable, light coloured emulsions from low penetration grade clear binders | |
| CN102040905A (en) | Water-base coating composition and preparation method thereof | |
| CN111909756A (en) | Gel ink pen refill follow-up sealant and preparation method and application thereof | |
| EP2478058B1 (en) | Waterproofing asphalt top seal composition |
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 |