CN106189297A - A kind of conductive asphalt and preparation method thereof - Google Patents
A kind of conductive asphalt and preparation method thereof Download PDFInfo
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- CN106189297A CN106189297A CN201610679074.1A CN201610679074A CN106189297A CN 106189297 A CN106189297 A CN 106189297A CN 201610679074 A CN201610679074 A CN 201610679074A CN 106189297 A CN106189297 A CN 106189297A
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2495/00—Bituminous materials, e.g. asphalt, tar or pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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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
- 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
Abstract
The invention discloses a kind of conductive asphalt and preparation method thereof, belong to pavement construction material field.Technical scheme main points are: had the conductive asphalt of excellent conductive performance by the preparation of graphene conductive master batch of bitumen, and specifically disclose the preparation method of graphene conductive master batch of bitumen, further by process easy and simple to handle, graphene conductive master batch of bitumen is utilized to prepare the conductive asphalt with excellent conductive performance, it is possible to be effectively improved the electric property on conductive asphalt road surface.
Description
Technical field
The invention belongs to pavement construction material technical field, be specifically related to a kind of conductive asphalt and preparation method thereof.
Background technology
Conductive asphalt is a kind of intelligentized pavement construction material, according to its electrical properties, utilizes conductive asphalt making
Bituminous paving has strain, destroys and the self-sensing capability of the information such as temperature, can be used for road construction structure vibration control,
Traffic administration, load-carrying measurement and building safety aspect.Meanwhile, the electrocaloric effect of available conductive asphalt to conducting self-heating, this merit
Asphalt roads can be can be widely applied to meet an urgent need and deicing and winter ensure the aspects such as current.
Owing to Colophonium itself is insulator, so the principle preparing conductive asphalt is interpolation conductive paste material in Colophonium,
By conductive phase, Colophonium can be conducted electricity.The electric conductivity of the conductive asphalt under prior art is frequently not very good, sternly
Heavily have impact on electric current service efficiency.Conduction is also dripped by conductive paste material as additive, uniformity and stability in Colophonium
Blue or green performance has material impact so that the preparation technology of conductive asphalt is more harsh complicated.It is achieved that conductive paste material innovation
Research with conductive asphalt preparation technology breaks through, and has important Research Significance and using value.
Graphene is by sp2The cellular crystal structure materials of the carbon atom close-packed arrays of hydridization.At Graphene material
In material, the electronics constituting big π key can move freely, and gives the electric conductivity that Graphene is excellent, is very good new of electric conductivity
Type functional material.
Summary of the invention
Present invention solves the technical problem that and there is provided a kind of conductive asphalt with excellent conductive performance and stable performance
And preparation method thereof, material premixing abundant with Colophonium good for this for Graphene electric conductivity is prepared Graphene and leads by the method
Electricity master batch of bitumen, then uses simple and easy to do technique graphene conductive master batch of bitumen to be applied in the production of conductive asphalt,
The final conductive asphalt preparing electric conductivity excellence.
The present invention solves that above-mentioned technical problem adopts the following technical scheme that, the preparation method of a kind of conductive asphalt, it is special
Levy and be to concretely comprise the following steps:
Step (1), add graphene oxide into add in advance and help that to form sepia in the solvent of reducing agent and cosolvent saturating
Bright solution, wherein helping reducing agent is NaClO4、LiClO4、n-Bu4NI, LiCl or NaNO3In one or more, cosolvent is
In dodecylbenzene sodium sulfonate, dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide or sodium cholate
One or more, solvent is ethylene glycol, isopropanol, oxolane, dimethyl sulfoxide, DMF or N-methyl
One or more in ketopyrrolidine, add Colophonium and carry out supersound process, Colophonium carry out ultrasonic disperse and to oxidation stone
Ink alkene carries out ultrasonic stripping dispersion and obtains uniform dark solution, then dark solution is joined in glass electrolyzer, and will
Working electrode, electrode and reference electrode are placed in glass electrolyzer, use the constant potential black to being in stirring molten
Liquid application adds reduction current and graphene oxide is reduced, and obtained product liquid distills 6～12h in 60～180 DEG C of decompressions,
Recycling design and cosolvent, finally give graphene conductive master batch of bitumen；
Step (2), graphene conductive master batch of bitumen is put into that to keep melt temperature be in the matrix pitch of 100～180 DEG C, adopt
Shearing 30～120min with high-speed shearing machine makes graphene conductive master batch of bitumen be dispersed in matrix pitch, finally gives
Conductive asphalt.
Further preferably, consumption is asphalt quality 25%～30% of graphene oxide described in step (1).
Further preferably, consumption is asphalt quality 1.25%～the 7.5% of reducing agent is helped described in step (1).
Further preferably, consumption is asphalt quality 2%～10% of cosolvent described in step (1).
Further preferably, consumption is asphalt quality 40%～60% of solvent described in step (1).
Further preferably, described in step (1), working electrode is nickel foam, wire gauze, copper mesh or carbon-point, is platinum to electrode
Electrode, reference electrode is saturated calomel electrode.
Further preferably, described in step (1), constant voltage current potential is-10～10V, and the recovery time is 40～180min.
Further preferably, described in step (1), the ultrasonic power of supersound process is 100～2000w, ultrasonic time be 10～
360min。
Further preferably, graphene conductive master batch of bitumen described in step (2) consumption is matrix pitch quality 2%～
5%。
Conductive asphalt of the present invention, it is characterised in that prepared by said method.
The present invention is directed to High-performance conductive asphalt Technology demand, based on conductive paste material, conductive paste material masterbatch
And the innovation of the preparation method of conductive asphalt, there is following several respects technical advantage:
1, the present invention uses material that this room temperature conductivity of Graphene is good as the conductive paste material of conductive asphalt, can show
Write and strengthen Colophonium electric conductivity；
2, the present invention is during preparing graphene conductive master batch of bitumen, to oxidation in graphene oxide and Colophonium mixed system
Graphene carries out electrochemical reduction, so makes the Graphene in-situ preparation that reduction generates in Colophonium macromolecular surface, thus carries
The high Graphene contact area with Colophonium, is therefore effectively increased the usefulness of conductive paste material；
3, the electrochemical reduction method that the present invention provides is prepared the method for master batch of bitumen and is differed from conventional report, compares and additive method, no
Needing complicated equipment, by simple electrochemical apparatus, device is simple, and processing ease is suitable for industrialization promotion；
4, the invention provides conductive asphalt production technology easy and simple to handle, the method utilization based on Graphene master batch of bitumen,
Prepare conductive asphalt further, be effectively increased Graphene dispersion in conductive asphalt, and enhance conductive asphalt
Stability.
Detailed description of the invention
By the following examples the foregoing of the present invention is described in further details, but this should be interpreted as this
The scope inventing above-mentioned theme is only limitted to below example, and all technology realized based on foregoing of the present invention belong to this
Bright scope.
Embodiment 1
(1) by 5g dodecylbenzene sodium sulfonate and 4g LiClO4Join in 40g DMF, be subsequently adding
20g graphene oxide forms sepia clear solution；80g Colophonium is joined in above-mentioned sepia clear solution, carries out ultrasonic
Processing, Colophonium carries out ultrasonic disperse and graphene oxide carries out ultrasonic stripping dispersion, ultrasonic power is 1000w, ultrasonic
Time is 2h, obtains uniform dark solution；Obtained dark solution is put in glass electrolyzer, then nickel foam is made
It is placed in glass electrolyzer as reference electrode as to electrode, saturated calomel electrode for working electrode, platinum electrode, use-
The 6.5V constant potential above-mentioned dark solution to being in stirring applies reduction current, and the recovery time is 1.5h so that oxidation
Graphene is reduced；Obtained product liquid is in 90 DEG C of decompression distillation 7h, thus recycling design and cosolvent, i.e. obtain graphite
Alkene conductive asphalt masterbatch；
(2) the graphene conductive master batch of bitumen that 110g step (1) prepares is put into the 3000g keeping melt temperature to be 130 DEG C
In matrix pitch, use high-speed shearing machine to shear 1h and make graphene conductive master batch of bitumen be uniformly dispersed in matrix pitch,
Prepare conductive asphalt eventually.
Establishing criteria: BT 1410-2006 " solid insulating material specific insulation and surface resistivity test method ", surveys
The specific insulation of the prepared conductive asphalt of examination, test result is shown in Table 1.
Embodiment 2
(1) 6g dodecyl dimethyl benzyl ammonium chloride and 2g LiCl are joined in 50g oxolane, be subsequently adding 26g oxygen
Functionalized graphene forms sepia clear solution；100g Colophonium is joined in above-mentioned sepia clear solution, carries out supersound process,
Colophonium carrying out ultrasonic disperse and graphene oxide carries out ultrasonic stripping dispersion, ultrasonic power is 1200w, and ultrasonic time is
2.5h, obtains uniform dark solution；Obtained dark solution is put in glass electrolyzer, then using copper mesh as work
Electrode, platinum electrode are placed in glass electrolyzer as reference electrode as to electrode, saturated calomel electrode, use-6.9V perseverance electricity
The position above-mentioned dark solution to being in stirring applies reduction current, and the recovery time is 2h so that graphene oxide is gone back
Former；Obtained product liquid is in 80 DEG C of decompression distillation 6h, thus recycling design and cosolvent, i.e. obtain graphene conductive Colophonium
Masterbatch；
(2) the graphene conductive master batch of bitumen that 140g step (1) prepares is put into the 3000g keeping melt temperature to be 130 DEG C
In matrix pitch, use high-speed shearing machine to shear 1.2h and make graphene conductive master batch of bitumen be uniformly dispersed in matrix pitch,
Final prepared conductive asphalt.
Establishing criteria: BT 1410-2006 " solid insulating material specific insulation and surface resistivity test method ", surveys
The specific insulation of the prepared conductive asphalt of examination, test result is shown in Table 1.
Embodiment 3
(1) by 16g dodecyl dimethyl benzyl ammonium bromide and 6g NaNO3Join in 110g dimethyl sulfoxide, be subsequently adding
60g graphene oxide forms sepia clear solution；200g Colophonium is joined in above-mentioned sepia clear solution, carries out ultrasonic
Processing, Colophonium carries out ultrasonic disperse and graphene oxide carries out ultrasonic stripping dispersion, ultrasonic power is 1500w, ultrasonic
Time is 4h, obtains uniform dark solution；Obtained dark solution is put in glass electrolyzer, then wire gauze is made
It is placed in glass electrolyzer as reference electrode as to electrode, saturated calomel electrode for working electrode, platinum electrode, use-
The 7.2V constant potential above-mentioned dark solution to being in stirring applies reduction current, and the recovery time is 2.5h so that oxidation
Graphene is reduced；Obtained product liquid is in 90 DEG C of decompression distillation 9h, thus recycling design and cosolvent, i.e. obtain graphite
Alkene conductive asphalt masterbatch；
(2) the graphene conductive master batch of bitumen that 290g step (1) prepares is put into the 6000g keeping melt temperature to be 135 DEG C
In matrix pitch, use high-speed shearing machine shearing 1.6h to make to lead Graphene electricity master batch of bitumen and be uniformly dispersed in matrix pitch,
Final prepared conductive asphalt.
Establishing criteria: BT 1410-2006 " solid insulating material specific insulation and surface resistivity test method ", surveys
The specific insulation of the prepared conductive asphalt of examination, test result is shown in Table 1.
The specific insulation test result of above example
Table 1 specific insulation test result
| Embodiment | Specific insulation/Ω * m |
| Embodiment 1 | 49.43 |
| Embodiment 2 | 38.26 |
| Embodiment 3 | 21.62 |
Embodiment above describes the ultimate principle of the present invention, principal character and advantage, skilled person will appreciate that of the industry,
The present invention is not restricted to the described embodiments, the principle that the present invention is simply described described in above-described embodiment and description,
Without departing under the scope of the principle of the invention, the present invention also has various changes and modifications, and these changes and improvements each fall within this
In the range of bright protection.
Claims (10)
1. the preparation method of a conductive asphalt, it is characterised in that concretely comprise the following steps:
Step (1), add graphene oxide into add in advance and help that to form sepia in the solvent of reducing agent and cosolvent saturating
Bright solution, wherein helping reducing agent is NaClO4、LiClO4、n-Bu4NI, LiCl or NaNO3In one or more, cosolvent is
In dodecylbenzene sodium sulfonate, dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide or sodium cholate
One or more, solvent is ethylene glycol, isopropanol, oxolane, dimethyl sulfoxide, DMF or N-methyl
One or more in ketopyrrolidine, add Colophonium and carry out supersound process, Colophonium carry out ultrasonic disperse and to oxidation stone
Ink alkene carries out ultrasonic stripping dispersion and obtains uniform dark solution, then dark solution is joined in glass electrolyzer, and will
Working electrode, electrode and reference electrode are placed in glass electrolyzer, use the constant potential black to being in stirring molten
Liquid application adds reduction current and graphene oxide is reduced, and obtained product liquid distills 6～12h in 60～180 DEG C of decompressions,
Recycling design and cosolvent, finally give graphene conductive master batch of bitumen；
Step (2), graphene conductive master batch of bitumen is put into that to keep melt temperature be in the matrix pitch of 100～180 DEG C, adopt
Shearing 30～120min with high-speed shearing machine makes graphene conductive master batch of bitumen be dispersed in matrix pitch, finally gives
Conductive asphalt.
The preparation method of conductive asphalt the most according to claim 1, it is characterised in that: graphite oxide described in step (1)
The consumption of alkene is the 25%～30% of asphalt quality.
The preparation method of conductive asphalt the most according to claim 1, it is characterised in that: step helps reducing agent described in (1)
Consumption is asphalt quality 1.25%～7.5%.
The preparation method of conductive asphalt the most according to claim 1, it is characterised in that: cosolvent described in step (1)
Consumption is the 2%～10% of asphalt quality.
The preparation method of conductive asphalt the most according to claim 1, it is characterised in that: the use of solvent described in step (1)
Amount is the 40%～60% of asphalt quality.
The preparation method of conductive asphalt the most according to claim 1, it is characterised in that: working electrode described in step (1)
For nickel foam, wire gauze, copper mesh or carbon-point, being platinum electrode to electrode, reference electrode is saturated calomel electrode.
The preparation method of conductive asphalt the most according to claim 1, it is characterised in that: constant voltage current potential described in step (1)
For-10～10V, the recovery time is 40～180min.
The preparation method of conductive asphalt the most according to claim 1, it is characterised in that: supersound process described in step (1)
Ultrasonic power be 100～2000w, ultrasonic time is 10～360min.
The preparation method of conductive asphalt the most according to claim 1, it is characterised in that: described in step (2), Graphene is led
Consumption is matrix pitch quality 2%～the 5% of electricity master batch of bitumen.
10. a conductive asphalt, it is characterised in that be to be prepared by the method described in any one in claim 1-9.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977962A (en) * | 2017-04-19 | 2017-07-25 | 成都新柯力化工科技有限公司 | A kind of graphene microchip masterbatch and preparation method for modifying road asphalt |
| CN108530916A (en) * | 2018-03-30 | 2018-09-14 | 长安大学 | A kind of graphene enhancing tourmaline modified asphalt material and preparation method thereof |
| CN109401349A (en) * | 2018-11-26 | 2019-03-01 | 长沙理工大学 | A kind of graphene oxide modified pitch and preparation method thereof |
| CN110093045A (en) * | 2019-04-30 | 2019-08-06 | 中国建筑土木建设有限公司 | A kind of convenient environment friendly deicing asphalt and preparation method thereof |
| CN111748210A (en) * | 2020-07-23 | 2020-10-09 | 赵俊 | Asphalt mixture with conductive function and preparation method thereof |
| CN111996865A (en) * | 2020-08-20 | 2020-11-27 | 吴品娟 | Construction method of road wearing layer |
| CN114410121A (en) * | 2021-12-27 | 2022-04-29 | 湖北工业大学 | Conductive asphalt and preparation method and application thereof |
| CN114479497A (en) * | 2022-02-24 | 2022-05-13 | 戴燕萍 | Environment-friendly high-transparency asphalt and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977962A (en) * | 2017-04-19 | 2017-07-25 | 成都新柯力化工科技有限公司 | A kind of graphene microchip masterbatch and preparation method for modifying road asphalt |
| CN106977962B (en) * | 2017-04-19 | 2019-05-24 | 南通永诚惠海建设工程有限公司 | A kind of graphene microchip masterbatch and preparation method for modifying road asphalt |
| CN108530916A (en) * | 2018-03-30 | 2018-09-14 | 长安大学 | A kind of graphene enhancing tourmaline modified asphalt material and preparation method thereof |
| CN109401349A (en) * | 2018-11-26 | 2019-03-01 | 长沙理工大学 | A kind of graphene oxide modified pitch and preparation method thereof |
| CN109401349B (en) * | 2018-11-26 | 2020-11-10 | 长沙理工大学 | Graphene oxide modified asphalt and preparation method thereof |
| CN110093045A (en) * | 2019-04-30 | 2019-08-06 | 中国建筑土木建设有限公司 | A kind of convenient environment friendly deicing asphalt and preparation method thereof |
| CN111748210A (en) * | 2020-07-23 | 2020-10-09 | 赵俊 | Asphalt mixture with conductive function and preparation method thereof |
| CN111996865A (en) * | 2020-08-20 | 2020-11-27 | 吴品娟 | Construction method of road wearing layer |
| CN114410121A (en) * | 2021-12-27 | 2022-04-29 | 湖北工业大学 | Conductive asphalt and preparation method and application thereof |
| CN114479497A (en) * | 2022-02-24 | 2022-05-13 | 戴燕萍 | Environment-friendly high-transparency asphalt and preparation method thereof |
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