CN108424663A - A kind of SBS modified pitch and preparation method thereof containing graphene - Google Patents
A kind of SBS modified pitch and preparation method thereof containing graphene Download PDFInfo
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- CN108424663A CN108424663A CN201810275140.8A CN201810275140A CN108424663A CN 108424663 A CN108424663 A CN 108424663A CN 201810275140 A CN201810275140 A CN 201810275140A CN 108424663 A CN108424663 A CN 108424663A
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- graphene
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- sbs
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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
Abstract
The invention belongs to modified asphalt technology fields, relate in particular to a kind of SBS modified pitch and preparation method thereof containing graphene.The SBS modified pitch containing graphene is made of the component of following mass parts：As the pitch of matrix, 92 98 parts, as the star-shaped sbs of modifying agent, 16 parts, 0.01 0.1 parts of stabilizer and the graphene aromatic naphtha compound additive as additive, 0.5 2.0 parts.Compared with prior art, the SBS modified pitch of the present invention containing graphene gives full play to the advantage of graphene, good with SBS modifier and bitumen compatibility, with good high-temperature stability, low-temperature cracking-resistance and ageing resistance, preparation process is simple, and condition mitigates, it is environmentally protective, it is at low cost.
Description
Technical field
The present invention relates to a kind of modified pitch, and in particular to a kind of SBS modified pitch containing graphene and its preparation side
Method.
Background technology
Pitch is easy tod produce as ground surface material such as the defects of track, cracking and aging, limits it in road construction
Extensive use.The performance for being remarkably improved road surface is modified to pitch, SBS (the polyphenyl second in numerous modified pitch
Alkene-butadiene block copolymer) modified pitch due to simultaneously there is high-temperature stability and low-temperature cracking-resistance, be increasingly becoming most
Common modified pitch kind.However, since dispersion particle diameters of the SBS in asphalt material is bigger than normal, and dispersion is not uniform enough, leads
It causes SBS Modified Bitumen Pavements after long period use, is subjected to the multiple action of traffic load and natural cause, different journeys occur
The pavement destruction of degree.In recent years, promote phase between SBS and asphaltene molecule by the way that other nano materials are added in SBS modified pitch
Mutually crosslinking, to improve the research of the performances such as bituminous paving high temperature resistance track and low-temperature resistance cracking by wide coverage.
Graphene be by carbon atom it is tightly packed at two-dimentional honeycomb hexagonal structure, and each carbon atom is SP2 miscellaneous
To change, connection flexibility is good between carbon atom, when exposed to external forces, the bending of carbon atom facial disfigurement, but the position of carbon atom will not be sent out
Life rearranges, this has been maintained for the stability of its structure.Since this lattice of graphene makes it have good flexibility
With the performances such as adhesive force.Each carbon atom carbon atom adjacent with other 3 forms covalent bond, remaining 1 p track in graphene
Pi bond is electronically formed, pi-electron can move freely, and be a kind of typical two-dimensional material, these properties make itself and SBS and drip
Green compatibility is more preferable than other inorganic nano materials, this unique texture that a large amount of electronics can be provided will also become pitch with
Potential bridge between SBS so that SBS modifier is preferably disperseed in pitch.Graphene is added in SBS modified pitch
Afterwards, the high and low temperature performance of SBS modified pitch is improved, and graphene has reached raising with SBS by synergistic effect
The effect of asphalt performance.Graphene has concave-convex fold, jagged microscopic appearance feature simultaneously, is conducive to the roads such as itself and stone
The contact of pipeline material and effectively bonding, to improve the wearability and skid resistance of bituminous paving.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of SBS modified pitch containing graphene and
Preparation method is mixed in SBS modified pitch, using the special structure of grapheme material and unique property with SBS modifier
Synergistic effect improves dispersibilities of the SBS in pitch, improves the high temperature Rut resistance of pitch and low temperature cracking, raising pitch
The wearability and skid resistance on road surface.
In order to realize above-mentioned goal of the invention, the technical scheme is that：
A kind of SBS modified pitch containing graphene is made of the component of following mass parts：As the pitch of matrix, 92-
98 parts, as the star-shaped sbs of modifying agent, 1-6 parts, 0.01-0.1 parts of sulphur stabilizer and graphene-aromatic hydrocarbons as additive
Oily compound additive, 0.5-2.0 parts.
Wherein,
Matrix pitch is bi tumenf orr oad；Star-shaped sbs modifying agent is thermoplastic elastomer (TPE) polystyrene-butadiene block
Copolymer, molecular weight are 25-30 ten thousand, and styrene mass content is 30-33%；Graphene-aromatic naphtha compound additive is graphite
It is obtained through micromechanics stripping method, graphene contained therein is one kind in single-layer graphene, few layer graphene or multi-layer graphene
Or it is several, graphene mass content is 0.5-10%；Stabilizer is sulphur.
The preparation process of the SBS modified pitch containing graphene is as follows：
A. matrix pitch, star-shaped sbs modifying agent, graphene-aromatic naphtha compound additive, steady is weighed by prescription quality number
Determine agent.
B. matrix pitch is heated to 180 DEG C, SBS modifier is added, then adds the compound addition of graphene-aromatic naphtha
30-45min is sheared in agent, and sulphur stabilizer is added, 1h is stirred under the conditions of 180 DEG C, is obtained the SBS containing graphene and is modified drip
It is green.
Technical scheme of the present invention advantage is：
(1) after graphene is added in SBS modified pitch, graphene carries out intermolecular combination with SBS by "=" so that SBS
Distributed in grid cover a layer graphene film, dispersions of the enhancing SBS in pitch improves the stability of grid and reduces organic
The volatilization of oil reduces the opportunity for penetration of harmful components (such as moisture content).Needle penetration, ductility and soft are shown as in pitch index
To change point all to have clear improvement, raising ratio is respectively 19%, and 37%, 16%.
(2) graphene has concave-convex fold, jagged microscopic appearance feature, reaches 1200m after specific surface area is compound2/
G enhances the contact and effectively bonding of the pavement materials such as itself and stone, to improve the wearability and skid resistance of bituminous paving.
(3) addition of graphene is small in the SBS modified pitch containing graphene, at low cost, and road asphalt performance improves,
Road maintenance maintenance cost reduces, and long term economical is good.
(4) preparation process is simple, and condition mitigates, environmentally protective.
Specific implementation mode
With reference to specific example, further understanding of the invention, but specific example is not intended to limit the present invention.
Embodiment 1
A kind of SBS modified pitch containing graphene described in the present embodiment is made of the component of following mass parts：Binzhou
AH-70 pitches are as matrix pitch, 95 parts；4303 modifying agent of star-shaped sbs, 300,000,4 parts of molecular weight；Graphene-aromatic naphtha is compound
Additive, 1.01 parts, wherein containing 100 parts of aromatic naphtha, 1 part of graphene, graphene is few layer graphene, stabilizer sulphur 0.06
Part.
Preparation process：Weigh that matrix pitch, star-shaped sbs modifying agent, graphene-aromatic naphtha is compound adds by prescription quality number
Add agent, stabilizer；Matrix pitch is heated to 180 DEG C, SBS modifier is added, then adds that graphene-aromatic naphtha is compound to be added
Add agent, shear 30-45min, sulphur stabilizer is added, 1h is stirred under the conditions of 180 DEG C, obtains the SBS containing graphene and be modified
Pitch.
Embodiment 2
A kind of SBS modified pitch containing graphene described in the present embodiment is made of the component of following mass parts：Binzhou
AH-70 pitches are as matrix pitch, 95 parts；4303 modifying agent of star-shaped sbs, 300,000,4 parts of molecular weight；Graphene-aromatic naphtha is compound
Additive, 1.02 parts, wherein containing 100 parts of aromatic naphtha, 2 parts of graphene, graphene is few layer graphene, stabilizer sulphur 0.06
Part.
Preparation process is the same as embodiment 1.
Embodiment 3
A kind of SBS modified pitch containing graphene described in the present embodiment is made of the component of following mass parts：Binzhou
AH-70 pitches are as matrix pitch, 95 parts；4303 modifying agent of star-shaped sbs, 300,000,4 parts of molecular weight；Graphene-aromatic naphtha is compound
Additive, 1.03 parts, wherein containing 100 parts of aromatic naphtha, 3 parts of graphene, graphene is few layer graphene, stabilizer sulphur 0.06
Part.
Preparation process is the same as embodiment 1.
Embodiment 4
A kind of SBS modified pitch containing graphene described in the present embodiment is made of the component of following mass parts：Binzhou
AH-70 pitches are as matrix pitch, 95 parts；4303 modifying agent of star-shaped sbs, 300,000,4 parts of molecular weight；Graphene-aromatic naphtha is compound
Additive, 1.04 parts, wherein containing 100 parts of aromatic naphtha, 4 parts of graphene, graphene is few layer graphene, stabilizer sulphur 0.06
Part.
Preparation process is the same as embodiment 1.
Embodiment 5
A kind of SBS modified pitch containing graphene described in the present embodiment is made of the component of following mass parts：Binzhou
AH-70 pitches are as matrix pitch, 95 parts；4303 modifying agent of star-shaped sbs, 300,000,4 parts of molecular weight；Graphene-aromatic naphtha is compound
Additive, 1.05 parts, wherein containing 100 parts of aromatic naphtha, 5 parts of graphene, graphene is few layer graphene, stabilizer sulphur 0.06
Part.
Preparation process is the same as embodiment 1.
Embodiment 6
A kind of SBS modified pitch containing graphene described in the present embodiment is made of the component of following mass parts：Binzhou
AH-70 pitches are as matrix pitch, 95 parts；4303 modifying agent of star-shaped sbs, 300,000,4 parts of molecular weight；Graphene-aromatic naphtha is compound
Additive, 1.06 parts, wherein containing 100 parts of aromatic naphtha, 6 parts of graphene, graphene is few layer graphene, stabilizer sulphur 0.06
Part.
Preparation process is the same as embodiment 1.
Embodiment 7
A kind of SBS modified pitch containing graphene described in the present embodiment is made of the component of following mass parts：Binzhou
AH-70 pitches are as matrix pitch, 95 parts；4303 modifying agent of star-shaped sbs, 300,000,4 parts of molecular weight；Graphene-aromatic naphtha is compound
Additive, 1.05 parts, wherein containing 100 parts of aromatic naphtha, 5 parts of graphene, graphene is single-layer graphene, stabilizer sulphur 0.06
Part.
Preparation process is the same as embodiment 1.
Embodiment 8
A kind of SBS modified pitch containing graphene described in the present embodiment is made of the component of following mass parts：Binzhou
AH-70 pitches are as matrix pitch, 95 parts；4303 modifying agent of star-shaped sbs, 300,000,4 parts of molecular weight；Graphene-aromatic naphtha is compound
Additive, 1.05 parts, wherein containing 100 parts of aromatic naphtha, 5 parts of graphene, graphene is multi-layer graphene, stabilizer sulphur 0.06
Part.
Preparation process is the same as embodiment 1.
Comparative example
A kind of SBS modified pitch described in this comparative example is made of following raw material：Using Binzhou AH-70 pitches as matrix
Pitch；Star-shaped sbs 4303, molecular weight 300,000, as modifying agent, addition is 4 parts；Aromatic naphtha ADD adds as auxiliary additive
It is 1 part to enter amount；For sulphur as stabilizer, addition is 0.06 part.
Preparation process：Matrix pitch, star-shaped sbs modifying agent, aromatic naphtha additive A DD, steady is weighed by prescription quality number
Determine agent；Matrix pitch is heated to 180 DEG C, SBS modifier is added, then adds aromatic naphtha additive A DD again, shears 30-
45min is added sulphur stabilizer, stirs 1h under the conditions of 180 DEG C, obtain SBS modified pitch.
According to《JTG E20-2011 highway engineerings pitches and Asphalt Mixture Experiment regulation》And《JTG F40-2004 highways
Asphalt Pavement Construction Technique specification》Needle penetration, softening point and the ductility of modified pitch obtained by testing example and comparative example, test
As a result as follows：
From the performance test results as can be seen that the performance of modified bitumen of the embodiment sample of addition graphene is superior to compare
Example.The test result of comparing embodiment 1-6 can obtain：In experiment content range, as graphene-aromatic naphtha compound additive adds
Enter amount in 1.01-1.05 parts of ranges to increase, the performance of modified pitch is more excellent, and needle penetration reduces, and ductility increases, softening point
It increases.Graphene-aromatic naphtha compound additive addition is more than the reduced performance of modified pitch after 1.05 parts.Therefore, graphite
There are one optimum values for the addition of alkene-aromatic naphtha compound additive.Within the scope of the present embodiment, the compound addition of graphene-aromatic naphtha
When agent addition is 1.05 parts (wherein containing 100 parts of aromatic naphtha, 5 parts of graphene), the performance of modified pitch is best.Compare implementation
The test result of example 6-8 can obtain：Pitch and component ratio used, the effect that few layer graphene is added in this present embodiment are better than
Single-layer graphene and multi-layer graphene.
Applicant's statement, any improvement in the present invention, to the equivalence replacement and auxiliary element of each raw material of product of the present invention
Addition, concrete mode selection etc., all fall within protection scope of the present invention and the open scope.
Claims (6)
1. a kind of SBS modified pitch and preparation method thereof containing graphene, it is characterised in that by the component structure of following mass parts
At：As the pitch of matrix, 92-98 parts, as the star-shaped sbs of modifying agent, 1-6 parts, 0.01-0.1 parts of stabilizer and as adding
Add graphene-aromatic naphtha compound additive of agent, 0.5-2.0 parts.
2. a kind of SBS modified pitch and preparation method thereof containing graphene according to claim 1, it is characterised in that：
The matrix pitch is bi tumenf orr oad.
3. a kind of SBS modified pitch and preparation method thereof containing graphene according to claim 1, it is characterised in that：
The star-shaped sbs modifying agent is thermoplastic elastomer (TPE) polystyrene-butadiene block copolymer, and molecular weight is 25-30 ten thousand, benzene second
Alkene mass content is 30-33%.
4. a kind of SBS modified pitch and preparation method thereof containing graphene according to claim 1, it is characterised in that：
The graphene-aromatic naphtha compound additive is that graphite is obtained through micromechanics stripping method, and graphene contained therein is single layer stone
Black alkene, few one or more of layer graphene or multi-layer graphene, graphene mass content are 0.5-10%.
5. a kind of SBS modified pitch and preparation method thereof containing graphene according to claim 1, it is characterised in that：
The stabilizer is sulphur.
6. a kind of SBS modified pitch and preparation method thereof containing graphene according to claim 1, it is characterised in that：
The preparation method the specific steps are：
A. matrix pitch, star-shaped sbs modifying agent, graphene-aromatic naphtha compound additive, stabilization are weighed by prescription quality number
Agent.
B. matrix pitch is heated to 180 DEG C, SBS modifier is added, then adds graphene-aromatic naphtha compound additive,
30-45min is sheared, sulphur stabilizer is added, stirs 1h under the conditions of 180 DEG C, obtains the SBS modified pitch containing graphene.
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| CN201810275140.8A CN108424663A (en) | 2018-03-22 | 2018-03-22 | A kind of SBS modified pitch and preparation method thereof containing graphene |
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| CN201810275140.8A CN108424663A (en) | 2018-03-22 | 2018-03-22 | A kind of SBS modified pitch and preparation method thereof containing graphene |
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Cited By (8)
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| CN109504108A (en) * | 2018-11-21 | 2019-03-22 | 魏林涛 | A kind of weather-proof modified pitch |
| CN109575618A (en) * | 2018-12-10 | 2019-04-05 | 青岛明象新材料技术有限公司 | A kind of compound rock asphalt tracking-resisting modifier of graphene and preparation method thereof |
| CN109735126A (en) * | 2019-01-16 | 2019-05-10 | 广西云亭烯技术有限公司 | A kind of graphene asphalt modification dispersion liquid and preparation method thereof |
| CN110126412A (en) * | 2019-05-29 | 2019-08-16 | 崇左市豫祥科技股份有限公司 | A kind of SBS root-resistant puncturing waterproof material and preparation method thereof |
| CN110791110A (en) * | 2019-11-07 | 2020-02-14 | 江苏路耐德公路养护技术有限公司 | Asphalt adhesion promoter and preparation method thereof |
| CN112521857A (en) * | 2020-10-30 | 2021-03-19 | 江西玉龙防水科技有限公司 | High-strength non-cured asphalt waterproof coating and preparation method thereof |
| CN113861706A (en) * | 2021-10-18 | 2021-12-31 | 陕西理工大学 | Modified asphalt containing nano material and application thereof |
| CN115093713A (en) * | 2022-07-18 | 2022-09-23 | 华运通达(浙江)交通科技有限公司 | Graphene modified asphalt and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504108A (en) * | 2018-11-21 | 2019-03-22 | 魏林涛 | A kind of weather-proof modified pitch |
| CN109575618A (en) * | 2018-12-10 | 2019-04-05 | 青岛明象新材料技术有限公司 | A kind of compound rock asphalt tracking-resisting modifier of graphene and preparation method thereof |
| CN109735126A (en) * | 2019-01-16 | 2019-05-10 | 广西云亭烯技术有限公司 | A kind of graphene asphalt modification dispersion liquid and preparation method thereof |
| CN110126412A (en) * | 2019-05-29 | 2019-08-16 | 崇左市豫祥科技股份有限公司 | A kind of SBS root-resistant puncturing waterproof material and preparation method thereof |
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| CN112521857A (en) * | 2020-10-30 | 2021-03-19 | 江西玉龙防水科技有限公司 | High-strength non-cured asphalt waterproof coating and preparation method thereof |
| CN113861706A (en) * | 2021-10-18 | 2021-12-31 | 陕西理工大学 | Modified asphalt containing nano material and application thereof |
| CN115093713A (en) * | 2022-07-18 | 2022-09-23 | 华运通达(浙江)交通科技有限公司 | Graphene modified asphalt and preparation method thereof |
| CN115093713B (en) * | 2022-07-18 | 2023-02-21 | 华运通达(浙江)交通科技有限公司 | Graphene modified asphalt and preparation method thereof |
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Application publication date: 20180821 |