CN103509356B - Asphalt is material modified and preparation method thereof - Google Patents
Asphalt is material modified and preparation method thereof Download PDFInfo
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- CN103509356B CN103509356B CN201310430878.4A CN201310430878A CN103509356B CN 103509356 B CN103509356 B CN 103509356B CN 201310430878 A CN201310430878 A CN 201310430878A CN 103509356 B CN103509356 B CN 103509356B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
A kind of asphalt is material modified, component including following mass fraction: polyethylene is 150～200 parts, styrene butadiene styrene block copolymer is 60～90 parts, polyethylene terephthalate is 16～30 parts, polyvinyl butyral resin is 50～80 parts, and filler is 20～40 parts.The material modified pavement performance that can effectively improve asphalt of above-mentioned asphalt.Additionally, also provide for the preparation method that a kind of asphalt is material modified.
Description
Technical field
The present invention relates to building material field, particularly relate to that a kind of asphalt is material modified and preparation side
Method.
Background technology
Highway is each country indispensable traffic route in each city, and the construction situation of highway can
Traffic development degree or even the integral level of economic development with one countries and regions of reflection.Therefore, high
The performance of speed highway has just become formidable problem.And Colophonium be one can waterproof, moistureproof and anticorrosion
Organic gel gel material, thus be widely used in the construction of highway.But, traditional Colophonium mixes
Close material and remain the imperfect problem of pavement performance.
Summary of the invention
In consideration of it, be necessary to provide a kind of asphalt material modified and preparation method thereof, it is possible to improve drip
The pavement performance of blue or green compound.
A kind of asphalt is material modified, including the component of following mass fraction: polyethylene is 150～200
Part, styrene butadiene styrene block copolymer (SBS) is 60～90 parts, and polyethylene terephthalate is 16～30
Part, polyvinyl butyral resin is 50～80 parts, and filler is 20～40 parts.
Wherein in an embodiment, described styrene butadiene styrene block copolymer (SBS) is line style styrene
-butadiene-styrene block copolymer or star-like styrene butadiene styrene block copolymer (SBS)；Described filling
Agent is Silicon stone ashes, potter's clay, Talcum, Kaolin, flyash, silicon dioxide, asbestos, wood powder and powder
At least one in cellulose.
The preparation method that a kind of asphalt is material modified, comprises the steps:
Raw material is weighed according to the mass fraction of following each component: polyethylene 150～200 parts, styrene-butadiene-
Styrene block copolymer 60～90 parts, polyethylene terephthalate 16～30 parts, polyvinyl butyral resin
50～80 parts and filler 20～40 parts；
Described polyethylene is mixed with described styrene butadiene styrene block copolymer (SBS), melt pelletization,
Mangcorn to described polyethylene Yu described styrene butadiene styrene block copolymer (SBS)；And
Described mangcorn is mixed with described polyethylene terephthalate, polyvinyl butyral resin and filler,
Melt extrude, obtain asphalt material modified.
Wherein in an embodiment, also include the step extracting described polyethylene from white garbage, from institute
State and white garbage extracts the step of described polyethylene include: described white garbage is broken into fragment；To have
Machine solvent joins in described fragment, and at 140 DEG C～160 DEG C, stirring is to dissolving, and obtain containing polyethylene is organic
Solution, is subsequently added into and the coagulator of the quality such as the described organic solution containing polyethylene, continues stirring 30 minutes
～after 40 minutes, it is cooled to 10 DEG C～35 DEG C, and obtaining mixture gel, described organic solvent is toluene, diformazan
Two or more mixed liquor being mixed to form in benzene, chloroform, naphthane and decahydronaphthalene；Then by institute
Stating the pulverizing of mixture gel, then organic solvent is removed in distillation, then through cleaning and the filtration separation of adding water, obtains
Polyethylene.
Wherein in an embodiment, described coagulator is calcium sulfate, calcium carbonate, calcium bicarbonate, calcium phosphate
Or polyethylene.
Wherein in an embodiment, wherein in an embodiment, the area stating fragment is 0.01 square metre
～0.04 square metre.
Wherein in an embodiment, described polyethylene and described styrene butadiene styrene block copolymer (SBS)
The equipment that mixed mixture melt pelletization uses is single screw rod primary and secondary comminutor.
Wherein in an embodiment, a diameter of 1 millimeter～4 millimeters of described mangcorn, a length of 1 millimeter
～10 millimeters.
Wherein in an embodiment, described mangcorn and described polyethylene terephthalate, polyvinyl alcohol
It is double screw extruder that butyral and the mixed mixture of filler melt extrude the equipment of employing.
Wherein in an embodiment, described styrene butadiene styrene block copolymer (SBS) is line style styrene
-butadiene-styrene block copolymer or star-like styrene butadiene styrene block copolymer (SBS)；Described filling
Agent is Silicon stone ashes, potter's clay, Talcum, Kaolin, flyash, silicon dioxide, asbestos, wood powder and powder
At least one in cellulose.
Polyethylene, s-B-S block copolymerization is included owing to above-mentioned asphalt is material modified
Thing, polyethylene terephthalate, polyvinyl butyral resin and filler, so that above-mentioned Colophonium
Compound is material modified has stronger modified function, and as elastic in it and good toughness, in the area that the temperature difference is bigger
The most high temperature resistant, anti-seismic design etc. can be embodied, add asphalt to and can effectively improve drip
The heat-resisting freeze proof and anti-rut behavior etc. of blue or green compound, the most above-mentioned asphalt is material modified can be effective
Ground improves the pavement performance of asphalt.
Accompanying drawing explanation
Fig. 1 is the flow chart of the material modified preparation method of the asphalt of an embodiment.
Detailed description of the invention
Below mainly in combination with drawings and the specific embodiments to asphalt material modified and preparation method thereof make into
One step detailed description.
The asphalt of one embodiment is material modified, including the component of following mass fraction: polyethylene is
150～200 parts, styrene butadiene styrene block copolymer (SBS) is 60～90 parts, poly terephthalic acid second two
Ester is 16～30 parts, polyvinyl butyral resin 50～80 parts, and filler is 20～40 parts.
Polyethylene (PE) is the aggregated prepared a kind of thermoplastic resin of ethylene.Polyethylene has excellent resistance to
Cryogenic property, chemical stability is good, is resistant to the erosion of most of soda acid.
Styrene butadiene styrene block copolymer (SBS) (SBS) can be line style styrene-butadiene-benzene second
Alkene block copolymer or star-like styrene butadiene styrene block copolymer (SBS).S-B-S
The viscosity of block copolymer (SBS) is big, and adhesive strength is high.Styrene butadiene styrene block copolymer (SBS)
Having excellent hot strength, elasticity and electrical property, permanent deformation is little, and it is good with resilience to subdue, and rubs in surface
Wipe big；Resistance to ozone, oxygen；Breathability is excellent；And the double bond contained due to main chain makes SBS ageing-resistant poor,
Under the oxidizing condition of high temperature air, butadiene block can crosslink, so that hardness and viscosity increase.
Polyethylene terephthalate (PET) has excellent physical and mechanical properties within the scope of wider temperature,
Life-time service temperature is up to 120 DEG C, and electrical insulating property is excellent, and even under high-temperature high-frequency, its electrical property is still preferable,
But corona resistance is poor, creep resistance, fatigue durability, rub resistance and dimensional stability are all fine, and PET
There is ester bond, can decompose under strong acid, highly basic and water vapor acting, organic solvent-resistant, good weatherability.
Polyvinyl butyral resin has good pliability, cohesiveness and tolerance to cold.
Filler can be filler commonly used in the art, preferably wollastonite in powder, potter's clay, Talcum, kaolinite
Soil, flyash, silicon dioxide, asbestos, wood powder and cellulose powder.More preferably Silicon stone ashes.Silicon stone
Ashes has persistency, weatherability, can strengthen expanding ability as filler, reduces crackle, but also
Oil absorption can be reduced, strengthen erosion resistance.
Polyethylene, s-B-S block copolymerization is included owing to above-mentioned asphalt is material modified
Thing, polyethylene terephthalate, polyvinyl butyral resin and filler, so that above-mentioned Colophonium
Compound is material modified has stronger modified function, and as elastic in it and good toughness, in the area that the temperature difference is bigger
The most high temperature resistant, anti-seismic design etc. can be embodied, add asphalt to and can effectively improve drip
The heat-resisting freeze proof and anti-rut behavior etc. of blue or green compound, the most above-mentioned asphalt is material modified can be effective
Ground improves the pavement performance of asphalt.
As it is shown in figure 1, the preparation method that the asphalt of an embodiment is material modified, including walking as follows
Rapid:
Step S110: weigh raw material according to the mass fraction of following each component: polyethylene 150～200 parts, benzene
Ethylene-butadiene-styrene block copolymer 60～90 parts, polyethylene terephthalate 16～30 parts, poly-second
Enol butyral 50～80 parts and filler 20～40 parts.
In the particular embodiment, the step extracting polyethylene from white garbage is also included, from white garbage
The step of middle extraction polyethylene includes: white garbage is broken into fragment；Add organic solvents in fragment,
At 140 DEG C～160 DEG C, stirring is to dissolving, and obtains the organic solution containing polyethylene, is subsequently added into and containing polyethylene
The coagulator of the quality such as organic solution, after continuing stirring 30 minutes～40 minutes, be cooled to 10 DEG C～35 DEG C,
Obtaining mixture gel, organic solvent is two kinds in toluene, dimethylbenzene, chloroform, naphthane and decahydronaphthalene
Or the two or more mixed liquor being mixed to form；Then being pulverized by mixture gel, then distillation is removed organic molten
Agent, then through cleaning and the filtration separation of adding water, obtain polyethylene.
Before white garbage is broken, first reclaim and classify white garbage, obtains polyethylene white garbage.Return
Receive and classify white garbage, just can be simply done with white that polyethylene is main material by range estimation
The classification of rubbish.White garbage with polyethylene as main material is generally compost bag, refuse bag, supermarket use
Light plastic packaging, mulch film etc..
Preferably, the area of fragment is 0.01 square metre～0.04 square metre.The white garbage fragment of this size has
It is beneficial to it be dissolved in organic solvent below.Preferably, the dress used when white garbage is broken into fragment
It is set to band water disintegrating machine.Such as, the band water disintegrating machine that model is PC-600 of journey machinery plant of Zhangjagang City thousand.
Use band water disintegrating machine so that having water to participate in shattering process broken, the particle of band water flows to rinse bath, warp
Again roll, the effect that white waste particles is rinsed cleaning can be played, be conducive to removing on fragment
Mud.Also include cleaning fragment before further being dissolved in organic solvent by fragment, and will clean
After fragment be dried process.In the present embodiment, white garbage fragment sends into rinse bath by transmission belt
Middle cleaning, thus remove the impurity in white garbage fragment and attachment, such as dust, silt etc..First will
White is broken into fragment, then is carried out, beneficially impurity and the removal of attachment.Fragment after cleaning is done
Dry process be use method can be that oven drying method, aeration drying or the sun directly dry.Preferably, after cleaning
Fragment first with drier dry, then dry, thus reach using electricity wisely, put forward high-quality purpose.For
Fragment is mixed into the foreign material such as small stone, sand and weeds, therefore, it is noted that weather during solarization when avoiding drying
Change and dust storm dust.
Directly coagulator is joined in the organic solution containing polyethylene under conditions of 140 DEG C～150 DEG C, save
Can the step such as intercooling, pulverizing, simplify operating process.
Organic solvent is two or more mixing in toluene, dimethylbenzene, chloroform, naphthane and decahydronaphthalene
The mixed liquor formed.Owing to the polyethylene in polyethylene white garbage has three kinds, be respectively high density polyethylene (HDPE),
Low Density Polyethylene and linear polyethylene, by two kinds or two or more organic solvents are mixed, permissible
Regulate to dissolve different melting points, different molecular weight or different types of polyethylene.
Preferably, the mixed liquor that organic solvent is dimethylbenzene and chloroform is mixed to form；It is highly preferred that dimethylbenzene
It is 4:1～2 with the mass ratio of chloroform.By chloroform and dimethylbenzene are mixed to form mixed solvent, chloroform therein
The effect of regulation boiling point can be played, thus reduce the effect of energy consumption.
Preferably, the mixed liquor that organic solvent is toluene and chloroform is mixed to form；It is furthermore preferred that toluene and chlorine
Imitative volume ratio is 1:1.
Dissolve by adding organic solvents in fragment, obtain the organic solution containing polyethylene, be subsequently added into
Coagulator etc. quality, it is possible to play the stable and effect of solidification so that the organic solvent containing polyethylene can
Solidify rapidly, form mixture gel.Preferably, coagulator can be commonly used in the art can playing
Stablize and the material of consolidation, preferably calcium sulfate, calcium carbonate, calcium bicarbonate, calcium phosphate or polyethylene.
Preferably, the device used when fragment adds stirring and dissolving in organic solvent is reactor.Owing to having
Machine solvent has certain volatility, by carrying out in a kettle., it is possible to keeps stability, and dissolved
Journey is at high temperature carried out, and can cause the volatilization of organic solution, causes organic solvent to reduce so that dissolves and does not fills
Point, carry out in a kettle., it is possible to make to dissolve more abundant, more uniformly so that solute effect is preferable.
It is highly preferred that it is 80 revs/min～90 revs/min that fragment joins rotating speed when stirring in organic solvent；More excellent
Selection of land, add the rotating speed when inorganic salt with the quality such as organic solution containing polyethylene continues stirring be 100 turns/
Minute.
Organic solvent, and the Organic substance that distillation is removed is removed, additionally it is possible to recycle and reuse by distillation, from
And effectively saved cost.When the coagulator added is calcium sulfate, calcium carbonate, calcium bicarbonate or calcium phosphate
Time, the cleaning that adds water can remove the calcium sulfate of precipitation, calcium carbonate, calcium bicarbonate or calcium phosphate, due to room temperature
Lower polyethylene is crystalloid, and its density is less than water, can float on the surface, and calcium sulfate, calcium carbonate, carbonic acid
Hydrogen calcium, the density of calcium phosphate are all higher than the density of water, can precipitate.By the cleaning that adds water, will be deposited under water
Calcium sulfate, calcium carbonate, calcium bicarbonate or calcium phosphate remove, separate through adding water filtration the most again, it becomes possible to
Obtain polyethylene.When the coagulator added is polyethylene, directly add water cleaning and filtration separation, it becomes possible to
Obtain polyethylene.
Preferably, after the pulverizing of mixture gel, distillation, also including will be successively through the cleaning that adds water, filtration point
The drying steps of the filtering residue obtained after from.The condition of drying steps is: 60 DEG C～100 DEG C are dried 2 hours～8 little
Time.Further, the device that drying steps uses is explosion-prevention water-bath baking oven.Such as, Shanghai is visitd shield machinery and is set
The BHX series vertical explosion-prevention water-bath baking oven that standby company limited produces.By using explosion-prevention water-bath baking oven that water is situated between
Matter heats, then by the most uniform diffusion in operating room of the heat of water so that it is more can be dried uniformly.
Preferably, the device used during distillation is recirculated water steam distillation unit.Such as, the great vertical life in Guangzhou
The recirculated water steam distillation unit that thing Science and Technology Ltd. produces.Because the organic solvent added has volatility,
By using recirculated water steam distillation unit not to be destroyed with vapor distillation by organic solvent, in water
Stablize and indissoluble or water insoluble, and extract organic principle by this device.Make these organic principles also
Can be with recycling.
Owing to the impurity in the polyethylene of extraction in white garbage is more, and purify further and can largely increase
Add the cost that white garbage reclaims, thus cause the polyethylene extracted from white garbage well not return
With, by the polyethylene that white garbage extracts is used as the raw material that asphalt is material modified, can not only
Enough solve the recycling problem of resource, thus significantly reduce the cost that asphalt is material modified,
And the asphalt mixed material modifier prepared with this adds to and can effectively improve drip in asphalt
The pavement performance on blue or green road surface.
Wherein, styrene butadiene styrene block copolymer (SBS) (SBS) can be line style styrene-butadiene
-styrene block copolymer or star-like styrene butadiene styrene block copolymer (SBS).
Wherein, filler can be filler commonly used in the art, preferably Silicon stone ashes, potter's clay, Talcum,
Kaolin, flyash, silicon dioxide, asbestos, wood powder and cellulose powder.More preferably Silicon stone ashes.
Silicon stone ashes has persistency, weatherability, can strengthen the expanding ability of asphalt as filler,
Reduce crackle, but also oil absorption can be reduced, strengthen erosion resistance.
Step S120: polyethylene is mixed with styrene butadiene styrene block copolymer (SBS) (SBS), molten
Melt pelletize, obtain the mangcorn of polyethylene and styrene butadiene styrene block copolymer (SBS).
Owing to styrene butadiene styrene block copolymer (SBS) (SBS) is a kind of material comparing indissoluble, logical
After first by the mixed melting of polyethylene (PE) Yu styrene butadiene styrene block copolymer (SBS) (SBS),
So that it can preferably mix with polyethylene terephthalate, polyvinyl butyral resin and filler.
In the present embodiment, polyethylene and the mixed mixture of styrene butadiene styrene block copolymer (SBS)
The equipment that melt pelletization uses is single screw rod primary and secondary comminutor.Single screw rod primary and secondary comminutor has good mixing effect
Really, and temperature easily controls, and uses electric power little, and floor space is little.Such as, Guangzhou connection letter plastics machine
Single screw rod primary and secondary comminutor of the LXSJ-015 model of tool company limited.
Wherein, a diameter of 1 millimeter～4 millimeters of mangcorn, a length of 1 millimeter～10 millimeters.Thus it is favourable
In uniformly mixing with polyethylene terephthalate, polyvinyl butyral resin and filler.
Step S130: mangcorn is mixed with polyethylene terephthalate, polyvinyl butyral resin and filler
Close, melt extrude, obtain asphalt material modified.
Wherein, mangcorn and polyethylene terephthalate, polyvinyl butyral resin filler are mixed mixed
The equipment that polymer melt extrusion uses is double screw extruder.Such as, Jiangsu Mei Zhilong Machinery Co., Ltd.
MT65 parallel equidirectional two-screw extruder.
The preparation method that above-mentioned asphalt is material modified, simple to operate, and the asphalt prepared
The material modified pavement performance that can effectively improve asphalt.
It is below specific embodiment part:
Embodiment 1
Preparing that the asphalt of the present embodiment is material modified is as follows:
(1) from white garbage, polyethylene is extracted: reclaim and classify white garbage, finds out poly-second by range estimation
Alkene white garbage, is then sent to band water disintegrating machine and crushes, and being chopped into area is 0.01
Fragment, the fragment of the band water after chopping is sent into rinse bath by transmission belt and is cleaned, through again rolling cleaning, so
After will clean after polyethylene white garbage fragment with drier dry, then dry.Take the poly-second of 1000g
The fragment of alkene white garbage is placed in reactor, adds dimethylbenzene and the mixed solution of chloroform, wherein dimethylbenzene
It is 4:1, altogether 5000g with the volume ratio of chloroform；Temperature of reaction kettle is adjusted to 150 DEG C, and with 90 revs/min
It is stirred 40 minutes extremely dissolving, obtains the organic solution containing polyethylene.Then add from feed inlet and gather with containing
The sulphuric acid calcium powder of the organic solution equivalent of ethylene, and be stirred 30 minutes with 100 revs/min, it is cooled to
10 DEG C obtain mixture gel；This mixture gel pulverizer is pulverized, is broken into powdery；Then will
This flour distills in recirculated water steam distillation unit, until removing dimethylbenzene and chloroform, after cooling,
Add water cleaning, removes the calcium sulfate of precipitation, then separates through adding water filtration, and the filtering residue obtained is placed in explosion-prevention water-bath
In baking oven, 60 DEG C are dried 8 hours, i.e. obtain polyethylene.Wherein, the purity of the polyethylene that the present embodiment extracts
It is more than 90%.
(2) raw material is weighed according to the mass fraction of following each component: polyethylene 200 parts, styrene-butadiene
-styrene block copolymer 60 parts, polyethylene terephthalate 18 parts, polyvinyl butyral resin 78 parts and
Silicon stone ashes 35 parts.Wherein, polyethylene is the polyethylene extracted in step (1), carries according to step (1)
The content of the polyethylene taken weighs according to the number of polyethylene in said components.
(3) polyethylene is mixed homogeneously with styrene butadiene styrene block copolymer (SBS), use single screw rod
Primary and secondary comminutor melt pelletization, obtains the mixing of polyethylene and styrene butadiene styrene block copolymer (SBS)
Grain, wherein, the diameter of mangcorn 1 millimeter, a length of 10 millimeters.
(4) above-mentioned mangcorn is mixed with polyethylene terephthalate, polyvinyl butyral resin and wollastonite in powder
Closing, use double screw extruder to melt extrude, the asphalt obtaining the present embodiment is material modified.
Being 0.3% according to quality, the asphalt obtained by the present embodiment is material modified, according to
JTGF40-2004 industry standard is added in asphalt with No. 70 Colophoniumes for matrix pitch, and level is equipped with close
Grating SMA-13, the data of the pavement performance detection of the modified asphalt obtained are shown in Table 1.
Embodiment 2
Preparing that the asphalt of the present embodiment is material modified is as follows:
(1) from white garbage, polyethylene is extracted: reclaim and classify white garbage, finds out poly-second by range estimation
Alkene white garbage, is then sent to band water disintegrating machine and crushes, and being chopped into area is 0.04
Fragment, the fragment of the band water after chopping is sent into rinse bath by transmission belt and is cleaned, through again rolling cleaning, so
After will clean after polyethylene white garbage fragment with drier dry, then dry.Take the poly-second of 1000g
The fragment of alkene white garbage is placed in reactor, adds toluene and the mixed solution of chloroform, wherein toluene and chlorine
Imitative volume ratio is 1:1, altogether 5000g；Temperature of reaction kettle is adjusted to 140 DEG C, and carries out with 85 revs/min
Stir 45 minutes to dissolving the organic solution obtained containing polyethylene.Then add and containing polyethylene from feed inlet
The Paris white of organic solution equivalent, and be stirred 40 minutes with 100 revs/min, it is cooled to 35 DEG C and obtains
To mixture gel；This mixture gel pulverizer is pulverized, is broken into powdery；Then by this powdery
Material distills in recirculated water steam distillation unit, until removing toluene and chloroform, after cooling, add water cleaning,
Removing the calcium carbonate of precipitation, add water filtration and separate, the filtering residue obtained is placed in explosion-prevention water-bath baking oven 100 DEG C and does
Dry 2 hours, i.e. obtain polyethylene.Wherein, the purity of the polyethylene that the present embodiment extracts is more than 90%.
(2) raw material is weighed according to the mass fraction of following each component: polyethylene 160 parts, styrene-butadiene
-styrene block copolymer 70 parts, polyethylene terephthalate 20 parts, polyvinyl butyral resin 65 parts,
Wollastonite in powder 18 parts and 12 parts of potter's clay.Wherein, polyethylene is the polyethylene extracted in step (1), according to
The content of the polyethylene that step (1) is extracted weighs according to the number of polyethylene in said components.
(3) polyethylene is mixed homogeneously with styrene butadiene styrene block copolymer (SBS), use single screw rod
Primary and secondary comminutor melt pelletization, obtains the mixing of polyethylene and styrene butadiene styrene block copolymer (SBS)
Grain, wherein, the diameter of mangcorn 4 millimeters, a length of 1 millimeter.
(4) by above-mentioned mangcorn and polyethylene terephthalate, polyvinyl butyral resin, wollastonite in powder and
Potter's clay mixes, and uses double screw extruder to melt extrude, and the asphalt obtaining the present embodiment is material modified.
Being 0.4% according to quality, the asphalt obtained by the present embodiment is material modified, according to
JTGF40-2004 industry standard is added in asphalt with No. 70 Colophoniumes for matrix pitch, and level is equipped with close
Grating SMA-13, the data of the pavement performance detection of the modified asphalt obtained are shown in Table 1.
Embodiment 3
Preparing that the asphalt of the present embodiment is material modified is as follows:
(1) from white garbage, polyethylene is extracted: reclaim and classify white garbage, finds out poly-second by range estimation
Alkene white garbage, is then sent to band water disintegrating machine and crushes, and being chopped into area is 0.02
Fragment, the fragment of the band water after chopping is sent into rinse bath by transmission belt and is cleaned, through again rolling cleaning, so
After will clean after polyethylene white garbage fragment with drier dry, then dry.Take the poly-second of 1000g
The fragment of alkene white garbage is placed in reactor, addition toluene, chloroform and the mixed solution of naphthane, wherein,
The volume ratio of toluene, chloroform and naphthane is 4:2:1, altogether 5000g；Temperature of reaction kettle is adjusted to 160 DEG C,
And be stirred 45 minutes extremely dissolving with 85 revs/min, obtain the organic solution containing polyethylene.Then from adding
Material mouth adds and the polyethylene powders of the organic solution equivalent containing polyethylene, and is stirred with 100 revs/min
30 minutes, it is cooled to 20 DEG C and obtains mixture gel；This mixture gel pulverizer is pulverized, broken
Powdering；Then this flour is distilled in recirculated water steam distillation unit, until removing toluene, chlorine
Imitative and naphthane, after cooling, adds water filtration and separates, and the filtering residue obtained is placed in explosion-prevention water-bath baking oven 80 DEG C
It is dried 6 hours, i.e. obtains polyethylene.Wherein, the purity of the polyethylene that the present embodiment extracts is more than 90%.
(2) raw material is weighed according to the mass fraction of following each component: polyethylene 180 parts, styrene-butadiene
-styrene block copolymer 75 parts, polyethylene terephthalate 30 parts, polyvinyl butyral resin 80 parts,
10 parts of Talcum, Kaolin 18 parts and 12 parts of flyash.Wherein, extract during polyethylene is step (1)
Polyethylene, the content of the polyethylene extracted according to step (1) weighs according to the number of polyethylene in said components.
(3) polyethylene is mixed homogeneously with styrene butadiene styrene block copolymer (SBS), use single screw rod
Primary and secondary comminutor melt pelletization, obtains the mixing of polyethylene and styrene butadiene styrene block copolymer (SBS)
Grain, wherein, the diameter of mangcorn 4 millimeters, a length of 1 millimeter.
(4) by above-mentioned mangcorn and polyethylene terephthalate, polyvinyl butyral resin, Talcum, kaolinite
Soil and flyash mixing, use double screw extruder to melt extrude, and the asphalt obtaining the present embodiment changes
Property material.
Being 0.5% according to quality, the asphalt obtained by the present embodiment is material modified, according to
JTGF40-2004 industry standard is added in asphalt with No. 70 Colophoniumes for matrix pitch, and level is equipped with close
Grating SMA-13, the data of the pavement performance detection of the modified asphalt obtained are shown in Table 1.
Embodiment 4
Preparing that the asphalt of the present embodiment is material modified is as follows:
(1) from white garbage, polyethylene is extracted: reclaim and classify white garbage, finds out poly-second by range estimation
Alkene white garbage, is then sent to band water disintegrating machine and crushes, and being chopped into area is 0.03
Fragment, the fragment of the band water after chopping is sent into rinse bath by transmission belt and is cleaned, through again rolling cleaning, so
After will clean after polyethylene white garbage fragment with drier dry, then dry.Take the poly-second of 1000g
The fragment of alkene white garbage is placed in reactor, adds dimethylbenzene, chloroform, naphthane and the mixing of decahydronaphthalene
Solution, wherein, the volume ratio of dimethylbenzene, chloroform, naphthane and decahydronaphthalene is 5:1:1:1, altogether 5000g；
Temperature of reaction kettle is adjusted to 140 DEG C, and is stirred 45 minutes with 85 revs/min, obtain containing poly-to dissolving
The organic solution of ethylene.Then add and the bicarbonate calcium powder of the organic solution equivalent containing polyethylene from feed inlet,
And be stirred 30 minutes with 100 revs/min, it is cooled to 20 DEG C and obtains mixture gel；By this mixture
Gel pulverizer is pulverized, and is broken into powdery；Then by this flour in recirculated water steam distillation unit
Middle distillation, until removing dimethylbenzene, chloroform, naphthane and decahydronaphthalene, after cooling, add water cleaning, removes
The calcium phosphate of precipitation, adds water filtration and separates, and the filtering residue obtained is placed in 80 DEG C dry 6 in explosion-prevention water-bath baking oven
Hour, i.e. obtain polyethylene.Wherein, the purity of the polyethylene that the present embodiment extracts is more than 90%.
(2) raw material is weighed according to the mass fraction of following each component: polyethylene 170 parts, styrene-butadiene
-styrene block copolymer 80 parts, polyethylene terephthalate 28 parts, polyvinyl butyral resin 70 parts,
Wollastonite in powder 9 parts, silica 10 part, 5 parts of asbestos, wood powder 6 parts and cellulose powder 5 parts.Wherein,
Polyethylene is the polyethylene extracted in step (1), the content of the polyethylene extracted according to step (1) according to
In said components, the number of polyethylene weighs.
(3) polyethylene is mixed homogeneously with styrene butadiene styrene block copolymer (SBS), use single screw rod
Primary and secondary comminutor melt pelletization, obtains the mixing of polyethylene and styrene butadiene styrene block copolymer (SBS)
Grain, wherein, the diameter of mangcorn 1 millimeter, a length of 10 millimeters.
(4) by above-mentioned mangcorn and polyethylene terephthalate, polyvinyl butyral resin, wollastonite in powder,
Silicon dioxide, asbestos, wood powder and cellulose powder mixing, use double screw extruder to melt extrude, obtain
The asphalt of the present embodiment is material modified.
Being 0.6% according to quality, the asphalt obtained by the present embodiment is material modified, according to
JTGF40-2004 industry standard is added in asphalt with No. 70 Colophoniumes for matrix pitch, and level is equipped with close
Grating SMA-13, the data of the pavement performance detection of the modified asphalt obtained are shown in Table 1.
Embodiment 5
Preparing that the asphalt of the present embodiment is material modified is as follows:
(1) from white garbage, polyethylene is extracted: reclaim and classify white garbage, finds out poly-second by range estimation
Alkene white garbage, is then sent to band water disintegrating machine and crushes, and being chopped into area is 0.01
Fragment, the fragment of the band water after chopping is sent into rinse bath by transmission belt and is cleaned, through again rolling cleaning, so
After will clean after polyethylene white garbage fragment with drier dry, then dry.Take the poly-second of 1000g
The fragment of alkene white garbage is placed in reactor, adds dimethylbenzene and the mixed solution of chloroform, wherein dimethylbenzene
It is 4:2, altogether 5000g with the volume ratio of chloroform；Temperature of reaction kettle is adjusted to 150 DEG C, and with 90 revs/min
It is stirred 40 minutes extremely dissolving, obtains the organic solution containing polyethylene.Then add from feed inlet and gather with containing
The sulphuric acid calcium powder of the organic solution equivalent of ethylene, and be stirred 30 minutes with 100 revs/min, it is cooled to
10 DEG C obtain mixture gel；This mixture gel pulverizer is pulverized, is broken into powdery；Then will
This flour distills in recirculated water steam distillation unit, until removing dimethylbenzene and chloroform, after cooling,
Add water cleaning, removes the calcium sulfate of precipitation, then separates through adding water filtration, and the filtering residue obtained is placed in explosion-prevention water-bath
In baking oven, 60 DEG C are dried 8 hours, i.e. obtain polyethylene.Wherein, the purity of the polyethylene that the present embodiment extracts
It is more than 90%.
(2) raw material is weighed according to the mass fraction of following each component: polyethylene 150 parts, styrene-butadiene
-styrene block copolymer 90 parts, polyethylene terephthalate 16 parts, polyvinyl butyral resin 50 parts,
Wollastonite in powder 6 parts, 3 parts of Talcum, Kaolin 5 parts, 3 parts of asbestos and cellulose powder 3 parts.Wherein,
Polyethylene is the polyethylene extracted in step (1), the content of the polyethylene extracted according to step (1) according to
In said components, the number of polyethylene weighs.
(3) polyethylene is mixed homogeneously with styrene butadiene styrene block copolymer (SBS), use single screw rod
Primary and secondary comminutor melt pelletization, obtains the mixing of polyethylene and styrene butadiene styrene block copolymer (SBS)
Grain, wherein, the diameter of mangcorn 1 millimeter, a length of 10 millimeters.
(4) by above-mentioned mangcorn and polyethylene terephthalate, polyvinyl butyral resin, wollastonite in powder,
Talcum, Kaolin, asbestos and cellulose powder mixing, use double screw extruder to melt extrude, obtain this
The asphalt of embodiment is material modified.
Being 0.7% according to quality, the asphalt obtained by the present embodiment is material modified, according to
JTGF40-2004 industry standard is added in asphalt with No. 70 Colophoniumes for matrix pitch, and level is equipped with close
Grating SMA-13, the data of the pavement performance detection of the modified asphalt obtained are shown in Table 1.
The asphalt that what table 1 represented be embodiment 1～embodiment 5 prepares is material modified, according to
JTGF40-2004 industry standard is added in asphalt with No. 70 Colophoniumes for matrix pitch, and level is equipped with close
Modified asphalt and traditional direct modified pitch to asphalt modification that grating SMA-13 obtains mix
Close the data of the pavement performance detection of material.
Table 1
It is known that the asphalt of embodiment 1～embodiment 5 preparation is material modified modified from table 1
The Marshall stability of asphalt, rut dynamic stability, immersion Marshall residual stability, freeze thawing
Splitting residual stability and low-temperature bending failure strain obviously higher than JTG F40-2004 national regulation requirement,
And higher than traditional direct modified asphalt mixture to asphalt modification, the asphalt in the present invention is described
Material modified have in good high temperature Rut resistance stability, anti-low-temperature cracking morphotropism and high/low temperature soaked
The water stability of experiment, i.e. asphalt in the present invention are material modified can improve Colophonium mixing effectively
The pavement performance of material.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (7)
1. the preparation method that an asphalt is material modified, it is characterised in that comprise the steps:
Raw material is weighed according to the mass fraction of following each component: polyethylene 150～200 parts, styrene-butadiene-
Styrene block copolymer 60～90 parts, polyethylene terephthalate 16～30 parts, polyvinyl butyral resin
50～80 parts and filler 20～40 parts；
Described polyethylene is mixed with described styrene butadiene styrene block copolymer (SBS), melt pelletization,
Mangcorn to described polyethylene Yu described styrene butadiene styrene block copolymer (SBS)；And
Described mangcorn is mixed with described polyethylene terephthalate, polyvinyl butyral resin and filler,
Melt extrude, obtain asphalt material modified；
Wherein, the polyethylene in the raw material weighed extracts from white garbage, extracts from white garbage
The step of polyethylene includes: white garbage is broken into fragment；Add organic solvents in fragment, at 140 DEG C
～stirring, to dissolving, obtains the organic solution containing polyethylene at 160 DEG C, be subsequently added into containing polyethylene is organic
The coagulator of the quality such as solution, after continuing stirring 30 minutes～40 minutes, is cooled to 10 DEG C～35 DEG C, obtains
Mixture gel, organic solvent is at least one in toluene, dimethylbenzene, naphthane and decahydronaphthalene and chloroform
The mixed liquor formed；Then being pulverized by mixture gel, then organic solvent is removed in distillation, more clear through adding water
Wash and filter separation, obtaining polyethylene；
The device used during distillation is recirculated water steam distillation unit.
The preparation method that asphalt the most according to claim 1 is material modified, it is characterised in that
Described coagulator is calcium sulfate, calcium carbonate, calcium bicarbonate, calcium phosphate or polyethylene.
The preparation method that asphalt the most according to claim 1 is material modified, it is characterised in that
The area of described fragment is 0.01 square metre～0.04 square metre.
The preparation method that asphalt the most according to claim 1 is material modified, it is characterised in that
Described polyethylene and described styrene butadiene styrene block copolymer (SBS) mixed mixture melt pelletization
The equipment used is single screw rod primary and secondary comminutor.
The preparation method that asphalt the most according to claim 1 is material modified, it is characterised in that
A diameter of 1 millimeter～4 millimeters of described mangcorn, a length of 1 millimeter～10 millimeters.
The preparation method that asphalt the most according to claim 1 is material modified, it is characterised in that
Described mangcorn is mixed with described polyethylene terephthalate, polyvinyl butyral resin and filler mixed
The equipment that polymer melt extrusion uses is double screw extruder.
The preparation method that asphalt the most according to claim 1 is material modified, it is characterised in that
Described styrene butadiene styrene block copolymer (SBS) is line style styrene butadiene styrene block copolymer (SBS)
Or star-like styrene butadiene styrene block copolymer (SBS)；Described filler be Silicon stone ashes, potter's clay, Talcum,
At least one in Kaolin, flyash, silicon dioxide, asbestos, wood powder and cellulose powder.
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| CN105599399A (en) * | 2015-09-24 | 2016-05-25 | 天长市金牛防水防腐材料有限公司 | Plastomer modified asphalt waterproof coiled material |
| CN110914367B (en) * | 2017-07-18 | 2022-02-25 | 花王株式会社 | Asphalt composition |
| EP3656920A4 (en) | 2017-07-18 | 2021-03-31 | Kao Corporation | Road paving method |
| TWI794322B (en) | 2017-11-07 | 2023-03-01 | 義大利商伊特其米卡股份有限公司 | Additive composition for bituminous conglomerates with high mechanical performances |
| CN109575616B (en) * | 2018-11-02 | 2021-04-06 | 广东工业大学 | High-performance asphalt modifier and preparation method and application thereof |
| IT201900006600A1 (en) | 2019-05-07 | 2020-11-07 | Iterchimica S R L | Process for the production of an additive for bituminous conglomerates with high mechanical performance |
| EP4116489A4 (en) * | 2020-03-06 | 2024-03-20 | Kao Corporation | Asphalt composition |
| CN112409669A (en) * | 2020-11-04 | 2021-02-26 | 青岛特固机械有限公司 | Application and preparation method of high-strength low-temperature-resistant polyethylene material in construction engineering |
| CN116874231B (en) * | 2023-09-07 | 2023-12-22 | 山东绿达建设发展集团有限公司 | Preparation method of asphalt mixture containing waste PET |
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