CN108275906A - Bituminous concrete high-modulus agent based on worn-out agricultural film - Google Patents
Bituminous concrete high-modulus agent based on worn-out agricultural film Download PDFInfo
- Publication number
- CN108275906A CN108275906A CN201810071716.9A CN201810071716A CN108275906A CN 108275906 A CN108275906 A CN 108275906A CN 201810071716 A CN201810071716 A CN 201810071716A CN 108275906 A CN108275906 A CN 108275906A
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- agricultural film
- out agricultural
- bituminous concrete
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- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 42
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 56
- 239000000835 fiber Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000012188 paraffin wax Substances 0.000 claims abstract description 17
- 238000012986 modification Methods 0.000 claims abstract description 15
- 230000004048 modification Effects 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 14
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 14
- 239000006229 carbon black Substances 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 14
- 229920000642 polymer Polymers 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims description 33
- 238000002360 preparation method Methods 0.000 claims description 20
- 239000011265 semifinished product Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 8
- -1 age resister Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 4
- 239000010408 film Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 210000001015 abdomen Anatomy 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- 239000010426 asphalt Substances 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 230000003712 anti-aging effect Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 235000019241 carbon black Nutrition 0.000 description 10
- 238000011161 development Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910017435 S2 In Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The present invention provides the bituminous concrete high-modulus agent based on worn-out agricultural film, including internal polymer modification layer to wrap up in stern layer with the worn-out agricultural film being wrapped in outside polymer modification layer, wherein worn-out agricultural film wraps up in the material that stern layer includes following parts by weight：Worn-out agricultural film, 35 50 parts；Polymer modification layer includes the raw material of following parts by weight：Epoxy resin, 58 parts；Fiber, 5 10 parts；Paraffin, 35 parts；Age resister, 24 parts；Antioxidant, 0.1 0.8 parts；Stabilizer, 1.5 3 parts；Carbon black, 2.9 4.2 parts；Antistripping agent, 2 3.5 parts；Diatomite, 8.5 13 parts.The present invention makes the modulus of bituminous concrete and anti-aging property significantly be improved, and improves synthesis performance, the prolonging service life of pavement of asphalt roads, reduces road construction and maintenance cost, has high economic value and social benefit；The environmental pollution problem of China's agricultural mulching is solved simultaneously.
Description
Technical field
The present invention relates to agricultural, traffic, Water Resources Domain new technology, more specifically to a kind of based on worn-out agricultural film
High modulus asphalt concrete additive agent and preparation method thereof.
Background technology
Soil is the supplier of physical resources for the survival of mankind, and raw material carry during socio-economic development
Donor.As a large agricultural country, the importance in soil is more prominent in China.There is no the sustainable development in soil, just without complete
The sustainable development of state.But with the quickening of China's modernization, agricultural mulching is on the rise to the pollution of environment.By
In the restriction of many factors, agricultural mulching pollution in China's is not administered effectively, restrict rural economy society of China into
One step develops.The solution of agricultural mulching pollution problem is related to the prosperity and stability of the sustainable and healthy development and society of rural economy,
How the sprawling that could effectively prevent and remedy pollution, be present society development priority project.
In the middle and later periods nineties 19th century, Europe has started worn-out agricultural film exploitation for asphalt roads base, middle face layer
It builds.In China, this problem obtained the great attention of the scientific research institutions such as Ministry of Communications, Chinese Ministry of Environmental Protection since 2009, and set up the project
In state key developmental research project.Therefore, if worn-out agricultural film can be converted into asphalt roads high-modulus agent for road
Asphalt pavement construction and maintenance are to improving road surface comprehensive performance, reducing road construction and maintenance cost, lifting construction efficiency, protection
Ecological environment, saving social resources have a very important significance.
Invention content
The bituminous concrete high-modulus agent and preparation method thereof based on worn-out agricultural film that the purpose of the present invention is to provide a kind of.
On the one hand, the embodiment of the present invention provides a kind of bituminous concrete high-modulus agent based on worn-out agricultural film, described to be based on
The bituminous concrete high-modulus agent of worn-out agricultural film includes the polymer modification layer of inside and is wrapped in outside the polymer modification layer
Worn-out agricultural film wrap up in stern layer, wherein the worn-out agricultural film wraps up in the material that stern layer includes following parts by weight：Worn-out agricultural film, 35-50
Part；The polymer modification layer includes the raw material of following parts by weight：
Epoxy resin, 5-8 parts；Fiber, 5-10 parts；Paraffin, 3-5 parts；Age resister, 2-4 parts；Antioxidant, 0.1-0.8
Part；Stabilizer, 1.5-3 parts；Carbon black, 2.9-4.2 parts；Antistripping agent, 2-3.5 parts；Diatomite, 8.5-13 parts.
In the bituminous concrete high-modulus agent provided by the invention based on worn-out agricultural film, the worn-out agricultural film is sheet.
In the bituminous concrete high-modulus agent provided by the invention based on worn-out agricultural film, the fiber is polyester fiber,
The diatomite is modification infusorial earth.
In the bituminous concrete high-modulus agent provided by the invention based on worn-out agricultural film, the paraffin temperature is 90-110
℃。
Correspondingly, the bituminous concrete high-modulus agent based on worn-out agricultural film as described above is prepared the present invention also provides a kind of
Preparation method, include the following steps：
Step S1：Epoxy resin, fiber, paraffin, age resister, antioxidant, stabilizer, carbon black, antistripping agent are added
Enter in horizontal color mixing machine, carries out uniform stirring and semi-finished product are made；
Step S2：Worn-out agricultural film and diatomite are added in horizontal color mixing machine, carried out again together with the semi-finished product equal
Then even stirring produces the bituminous concrete high-modulus agent based on worn-out agricultural film with double screw extruder.
In preparation method provided by the invention, in the step S1, whipping temp is room temperature, mixing time 5-10
Minute.
In preparation method provided by the invention, in the step S2, whipping temp is room temperature, mixing time 10-
20 minutes, the production temperature of the double screw extruder was 140 DEG C -165 DEG C.
Correspondingly, the bituminous concrete high-modulus agent based on worn-out agricultural film as described above is prepared the present invention also provides a kind of
Preparation method, include the following steps：
By worn-out agricultural film, epoxy resin, fiber, paraffin, age resister, antioxidant, stabilizer, carbon black, antistripping agent,
Diatomite is placed in together in horizontal color mixing machine, and semi-finished product are generated after carrying out uniform stirring；
The semi-finished product are placed in double screw extruder and are stirred for, the pitch based on worn-out agricultural film is produced
Concrete high-modulus agent.
In preparation method provided by the invention, the temperature stirred in the horizontal color mixing machine is room temperature, mixing time
It is 15-25 minutes.
In preparation method provided by the invention, the time being stirred in the double screw extruder is 15-20 minutes,
It is 140 DEG C -165 DEG C to produce temperature.
Implement the embodiment of the present invention, has the advantages that：Pitch coagulation provided by the invention based on worn-out agricultural film
Native high-modulus agent directly in asphalt mixing building and can gather materials and be carried out at the same time dispensing, right under the shearing peptizaiton that high temperature gathers materials
Gather materials to form website cross-linked structure；It is placed in pitch again to be mixed, pitch can equably be wrapped up in gathering materials, make pitch
The modulus and anti-aging property of concrete are significantly improved, and are improved the synthesis performance of asphalt roads, are extended road surface
Service life reduces road construction and maintenance cost, has high economic value and social benefit；Solve China's agriculture simultaneously
With the environmental pollution problem of mulch.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 shows the perpendicular sectility for the bituminous concrete high-modulus agent based on worn-out agricultural film that one embodiment of the invention provides
Face schematic diagram；
Fig. 2 shows crosscutting the cuing open for the bituminous concrete high-modulus agent based on worn-out agricultural film that one embodiment of the invention provides
Face schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
The present invention provides the bituminous concrete high-modulus agent based on worn-out agricultural film, include the raw material of following parts by weight：
Worn-out agricultural film, 35-50 parts；Epoxy resin, 5-8 parts；Fiber, 5-10 parts；Paraffin, 3-5 parts；Age resister, 2-4
Part；Antioxidant, 0.1-0.8 parts；Stabilizer, 1.5-3 parts；Carbon black, 2.9-4.2 parts；Antistripping agent, 2-3.5 parts；Diatomite,
8.5-13 part.
Wherein, the worn-out agricultural film is sheet；
The fiber is polyester fiber；
The diatomite is modification infusorial earth；The paraffin is 90-110 DEG C.
In the present invention, first worn-out agricultural film is cleaned, is then placed in crusher and cuts into pieces, then by epoxy
Resin, fiber, paraffin, age resister, antioxidant, stabilizer, carbon black, antistripping agent are added in horizontal color mixing machine, carry out equal
Semi-finished product are made in even stirring；Worn-out agricultural film and diatomite will be added in horizontal color mixing machine again, together with the semi-finished product again
Uniform stirring is carried out, then produces the bituminous concrete high-modulus agent based on worn-out agricultural film with double screw extruder.It obtains
The bituminous concrete high-modulus agent based on worn-out agricultural film directly in asphalt mixing building and can gather materials and be carried out at the same time dispensing, mix
180-185 DEG C of temperature, duration of mixing 5-10s to form website cross-linked structure under the shearing peptizaiton that high temperature gathers materials to gathering materials；
It is placed in pitch again to be mixed, mixing time 30-40s, pitch equably be wrapped up in gathering materials, thus, it is possible to make drip
The modulus and anti-aging property of green concrete are significantly improved, and are improved the synthesis performance of asphalt roads, are extended road
Face service life reduces road construction and maintenance cost, has high economic value and social benefit；Solve China simultaneously
The environmental pollution problem of agricultural mulching.
Fig. 1 shows the perpendicular sectility for the bituminous concrete high-modulus agent based on worn-out agricultural film that one embodiment of the invention provides
Face schematic diagram；Fig. 2 shows the crosscutting of the bituminous concrete high-modulus agent based on worn-out agricultural film of one embodiment of the invention offer
Diagrammatic cross-section.As depicted in figs. 1 and 2, in the present invention, it is particle to be somebody's turn to do the bituminous concrete high-modulus agent based on worn-out agricultural film
Shape, for example, cylinder.It should be noted that during preparation, it is possible to create the not exclusively cylinder of rule, this is not
Influence the implementation of the present invention.The length that is dimensioned to of the bituminous concrete high-modulus agent based on worn-out agricultural film of the present invention is 5-
8mm, a diameter of 0.5-1.8mm so that it can quickly be melted during asphalt modification, participate in reaction.Fig. 1 is cylinder
Vertically basal diameter at cutting sectional view, Fig. 2 be cylinder cross-sectional view, it can be seen that it is provided by the invention to be based on
The bituminous concrete high-modulus agent of worn-out agricultural film includes the polymer modification layer 1 of inside, and is wrapped in the polymer modification
Worn-out agricultural film outside layer wraps up in stern layer 2.Wherein, the worn-out agricultural film wraps up in the material that stern layer includes following parts by weight：Worn-out agricultural film,
35-50 parts；The polymer modification layer includes the raw material of following parts by weight：Epoxy resin, 5-8 parts；Fiber, 5-10 parts；Paraffin,
3-5 parts；Age resister, 2-4 parts；Antioxidant, 0.1-0.8 parts；Stabilizer, 1.5-3 parts；Carbon black, 2.9-4.2 parts；Anti-strip
Agent, 2-3.5 parts；Diatomite, 8.5-13 parts.
The present invention also specifically provides the preparation method of the above-mentioned bituminous concrete high-modulus agent based on worn-out agricultural film, packet
It includes：
Step S1：Epoxy resin, fiber, paraffin, age resister, antioxidant, stabilizer, carbon black, antistripping agent are added
Enter in horizontal color mixing machine, carries out uniform stirring and semi-finished product are made；
Step S2：Worn-out agricultural film and diatomite are added in horizontal color mixing machine, carried out again together with the semi-finished product equal
Then even stirring produces the bituminous concrete high-modulus agent based on worn-out agricultural film with double screw extruder.
Specifically, in the step S1, whipping temp is room temperature, and mixing time is 5-10 minutes；In the step S2
In, whipping temp is room temperature, and mixing time is 10-20 minutes, and the production temperature of the double screw extruder is 140 DEG C -165
℃。
In an alternative embodiment of the invention, the another of the above-mentioned bituminous concrete high-modulus agent based on worn-out agricultural film is additionally provided
A kind of preparation method, includes the following steps：
By worn-out agricultural film, epoxy resin, fiber, paraffin, age resister, antioxidant, stabilizer, carbon black, antistripping agent,
Diatomite is placed in together in horizontal color mixing machine, and semi-finished product are generated after carrying out uniform stirring；
The semi-finished product are placed in double screw extruder and are stirred for, the pitch based on worn-out agricultural film is produced
Concrete high-modulus agent.
Specifically, the temperature stirred in the horizontal color mixing machine is room temperature, and mixing time is 15-25 minutes；Described double
The time being stirred in screw extruder is 15-20 minutes, and production temperature is 140 DEG C -165 DEG C.
In preparation process, what is taken is secondary mixing for the bituminous concrete high-modulus agent based on worn-out agricultural film of the present invention
Production so that various raw materials and high molecular material uniformly mix, the combination of generation physical property rapidly, thus prepare based on
The bituminous concrete high-modulus agent of worn-out agricultural film not only solves the environmental pollution problem of agricultural mulching, while being changed by polymer
Property, it solves the with high investment of asphalt pavement construction, high pollution, high energy consumption, integrate the skills such as pavement performance is low, service life of road surface is short
Art problem reduces road construction and maintenance cost, lifting construction efficiency, preserves the ecological environment, saves social resources.
The raw material and preparation process of the material of the present invention are specifically described by the following examples, it is used below
Expression " part " is by weight number.
Embodiment 1
6 parts of epoxy resin, 7 parts of fibers, 3 parts of paraffin, 3 parts of age resisters, 0.2 are added in the horizontal color mixing machine of bin device
Part antioxidant, 1.6 parts of stabilizers, 3 parts of carbon blacks, 2.5 parts of antistripping agents carry out uniform stirrings and semi-finished product are made；Whipping temp is
Room temperature, mixing time are 8 minutes.
40 parts of worn-out agricultural films and 10 parts of diatomite are added in horizontal color mixing machine, are carried out again together with the semi-finished product equal
Then even stirring produces the bituminous concrete high-modulus agent based on worn-out agricultural film with double screw extruder.Wherein, mixing
Temperature is room temperature, and the time is 15 minutes；The production temperature of double screw extruder is 145 DEG C.
Embodiment 2
By 48 parts of worn-out agricultural films, 7 parts of epoxy resin, 7 parts of fibers, 3 parts of paraffin, 2 parts of age resisters, 0.5 part of antioxidant,
1.7 parts of stabilizers, 3.5 parts of carbon blacks, 3.5 parts of antistripping agents, 9 parts of diatomite are placed in together in horizontal color mixing machine, are uniformly stirred
Semi-finished product are generated after mixing；The temperature of stirring is room temperature, and mixing time is 20 minutes.
The semi-finished product are placed in double screw extruder and are stirred for, the pitch based on worn-out agricultural film is produced
Concrete high-modulus agent；Wherein, the time being stirred for is 20 minutes, and production temperature is 145 DEG C.
It is above disclosed to be only a preferred embodiment of the present invention, the power of the present invention cannot be limited with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and is weighed according to the present invention
Equivalent variations made by profit requirement, still belong to the scope covered by the invention.
Claims (10)
1. a kind of bituminous concrete high-modulus agent based on worn-out agricultural film, which is characterized in that the pitch based on worn-out agricultural film
Concrete high-modulus agent includes that internal polymer modification layer and the worn-out agricultural film being wrapped in outside the polymer modification layer wrap up in abdomen
Layer, wherein the worn-out agricultural film wraps up in the material that stern layer includes following parts by weight：Worn-out agricultural film, 35-50 parts；The polymer changes
Property layer includes the raw material of following parts by weight：
Epoxy resin, 5-8 parts；Fiber, 5-10 parts；Paraffin, 3-5 parts；Age resister, 2-4 parts；Antioxidant, 0.1-0.8 parts；
Stabilizer, 1.5-3 parts；Carbon black, 2.9-4.2 parts；Antistripping agent, 2-3.5 parts；Diatomite, 8.5-13 parts.
2. the bituminous concrete high-modulus agent according to claim 1 based on worn-out agricultural film, which is characterized in that described waste and old
Agricultural film is sheet.
3. the bituminous concrete high-modulus agent according to claim 1 based on worn-out agricultural film, which is characterized in that the fiber
For polyester fiber, the diatomite is modification infusorial earth.
4. the bituminous concrete high-modulus agent according to claim 1 based on worn-out agricultural film, the paraffin temperature is 90-
110℃。
5. a kind of preparation method preparing the bituminous concrete high-modulus agent based on worn-out agricultural film as described in claim 1,
It is characterized in that, includes the following steps：
Step S1：Epoxy resin, fiber, paraffin, age resister, antioxidant, stabilizer, carbon black, antistripping agent are added sleeping
In formula color mixing machine, carries out uniform stirring and semi-finished product are made；
Step S2：Worn-out agricultural film and diatomite are added in horizontal color mixing machine, uniformly stirred again together with the semi-finished product
It mixes, then produces the bituminous concrete high-modulus agent based on worn-out agricultural film with double screw extruder.
6. preparation method according to claim 5, which is characterized in that in the step S1, whipping temp is room temperature, is stirred
It is 5-10 minutes to mix the time.
7. preparation method according to claim 5, which is characterized in that in the step S2, whipping temp is room temperature, is stirred
It is 10-20 minutes to mix the time, and the production temperature of the double screw extruder is 140 DEG C -165 DEG C.
8. a kind of preparation method preparing the bituminous concrete high-modulus agent based on worn-out agricultural film as described in claim 1,
It is characterized in that, includes the following steps：
By worn-out agricultural film, epoxy resin, fiber, paraffin, age resister, antioxidant, stabilizer, carbon black, antistripping agent, diatom
Soil is placed in together in horizontal color mixing machine, and semi-finished product are generated after carrying out uniform stirring；
The semi-finished product are placed in double screw extruder and are stirred for, the pitch coagulation based on worn-out agricultural film is produced
Native high-modulus agent.
9. preparation method according to claim 8, which is characterized in that the temperature stirred in the horizontal color mixing machine is room
Temperature, mixing time are 15-25 minutes.
10. preparation method according to claim 8, which is characterized in that be stirred in the double screw extruder when
Between be 15-20 minute, production temperature be 140 DEG C -165 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071716.9A CN108275906A (en) | 2018-01-24 | 2018-01-24 | Bituminous concrete high-modulus agent based on worn-out agricultural film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071716.9A CN108275906A (en) | 2018-01-24 | 2018-01-24 | Bituminous concrete high-modulus agent based on worn-out agricultural film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108275906A true CN108275906A (en) | 2018-07-13 |
Family
ID=62805003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810071716.9A Pending CN108275906A (en) | 2018-01-24 | 2018-01-24 | Bituminous concrete high-modulus agent based on worn-out agricultural film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486234A (en) * | 2018-11-16 | 2019-03-19 | 深圳市天坤元环保科技有限公司 | A kind of waste plastic regeneration direct putting type asphalt mixed material modifier and preparation method thereof |
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| CN109486234A (en) * | 2018-11-16 | 2019-03-19 | 深圳市天坤元环保科技有限公司 | A kind of waste plastic regeneration direct putting type asphalt mixed material modifier and preparation method thereof |
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