CN107189463A - A kind of emulsified asphalt is material modified, preparation method and its application in modified emulsifying asphalt is prepared - Google Patents
A kind of emulsified asphalt is material modified, preparation method and its application in modified emulsifying asphalt is prepared Download PDFInfo
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- CN107189463A CN107189463A CN201710540865.0A CN201710540865A CN107189463A CN 107189463 A CN107189463 A CN 107189463A CN 201710540865 A CN201710540865 A CN 201710540865A CN 107189463 A CN107189463 A CN 107189463A
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- asphalt
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- emulsified asphalt
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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
- C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
- C08L19/003—Precrosslinked rubber; Scrap rubber; Used vulcanised rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2419/00—Characterised by the use of rubbers not provided for in groups C08J2407/00 - C08J2417/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/329—Phosphorus containing acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/24—Recycled plastic recycling of old tyres and caoutchouc and addition of caoutchouc particles
Abstract
The invention discloses a kind of emulsified asphalt is material modified, preparation method and its application in modified emulsifying asphalt is prepared, belong to pavement construction material technical field.Technical scheme main points are：A kind of emulsified asphalt is material modified, is prepared from by the raw material of following parts by weight：50 70 parts of 6 12 parts of polyphosphoric acids, 12 24 parts of styrene butadiene block copolymer, 18 36 parts of rubber powder, 12 22 parts of nonionic asphalt emulsifier and deionized water.The invention further particularly discloses the material modified preparation method of the emulsified asphalt and its application in modified emulsifying asphalt is prepared.Without using solvent in the material modified production technology of emulsified asphalt of the present invention, environmental pollution is not only avoid, and avoids the negative effect that dissolvent residual evaporates physical performance to emulsified asphalt, and with simple and convenient technical advantage.
Description
Technical field
The invention belongs to pavement construction material technical field, and in particular to a kind of emulsified asphalt is material modified, preparation method
And its application in modified emulsifying asphalt is prepared.
Background technology
Emulsified asphalt is that conventional normal temperature mixes and stirs asphalt binding material, and the material need not add in use
Heat, thus be accordingly used in has unique superiority in asphalt pavement construction and maintenance processes.Modified emulsifying asphalt is will be material modified
The performance for making Asphalt Emulsion Evaporation Residue that there is modified emulsifying asphalt in emulsified asphalt is added to, so that modified emulsifying is dripped
Green grass or young crops can preferably meet the requirement of pavement performance.
Styrene-butadiene block copolymer SBS has good mechanical property, has modified well imitate to pitch
Really, it is divided into line style from SBS structure and star-like as modifying road asphalt material most commonly used in the world at present
Two kinds, in general, the effect of SBS modified asphalt is better than type SBS.However, SBS materials are used for into modified pitch at present
Method and few, this is high mainly due to SBS modified pitch viscosity, the characteristics of with hardly possible emulsification, it is not easy to stablized
SBS modified emulsifying asphalts.And the method that SBS materials are added directly into emulsified asphalt is also not easily accomplished, although having been reported that
SBS is swelled using toluene, then oil-in-water emulsion is made using emulsifying agent, toluene is evaporated off and made by last vacuum distillation
Into SBS latex, but there is complex operation, dissolvent residual, energy waste and the defect such as integrated cost is higher in this technique.
Rubber for tire has excellent mechanical property, and pitch material can be significantly improved using it as the material modified of pitch
Expect the adaptability to natural environment temperature, improve low temperature anti-cracking performance.Therefore, rubber asphalt technology has obtained extensive pass
Note, rubber asphalt is the pitch being modified using the levigate obtained rubber powder of waste and used rubber tyre, not only with very protrusion
Low temperature flexibility and anti-crack ability, and junked tire can be largely recycled, effectively alleviate " black dirt caused by waste tire
Dye " problem.However, rubber asphalt viscosity is high-leveled and difficult to emulsify, and rubber powder its own face is in hydrophobic character, it is difficult in emulsification drip
Directly disperse in green grass or young crops, which limits application of the rubber powder in emulsified bituminous materials.
The content of the invention
Present invention solves the technical problem that there is provided, a kind of preparation technology is simple and emulsified asphalt of relative inexpensiveness
Material modified and preparation method thereof, the material modified obtained emulsified asphalt of the emulsified asphalt has good pavement performance.
The present invention adopts the following technical scheme that a kind of emulsified asphalt is material modified to solve above-mentioned technical problem, its feature
It is that what is be prepared from by the raw material of following parts by weight：6-12 parts of polyphosphoric acids, styrene-butadiene block copolymer 12-
50-70 parts of 24 parts, 18-36 parts of rubber powder, 12-22 parts of nonionic asphalt emulsifier and deionized water, wherein rubber powder are meridian
80 mesh rubber powders of line junked tire production.
Further preferably, the mass ratio of the polyphosphoric acids, styrene-butadiene block copolymer and rubber powder is 1:2:
3。
Further preferably, the styrene-butadiene block copolymer is star polymerization structure, and relative molecular mass is 15
Ten thousand -20 ten thousand.
The material modified preparation method of emulsified asphalt of the present invention, it is characterised in that concretely comprise the following steps：
(1) polyphosphoric acids of 6-12 parts by weight is heated to 105 DEG C and be incubated；
(2) rubber powder of the styrene-butadiene block copolymer of 12-24 parts by weight and 18-36 parts by weight is heated to
65 DEG C, it is then added into the polyphosphoric acids that step (1) is incubated, is warming up to 120 DEG C and is incubated 3h；
(3) mixed material for obtaining step (2) is down to after room temperature the nonionic asphalt emulsification for adding 12-22 parts by weight
Agent, then 30min is stirred with 300r/min rotating speed, the deionized water of 50-70 parts by weight, lasting stirring are then added while stirring
Until the i.e. obtained emulsified asphalt of homogeneous latex emulsion formation is material modified.
The material modified application in modified emulsifying asphalt is prepared of emulsified asphalt of the present invention, it is characterised in that specific
Process is：The material modified solid content that is added directly into of emulsified asphalt is made to be uniformly mixed in 60% emulsified asphalt
The material modified mass ratio with emulsified asphalt of modified emulsifying asphalt, wherein emulsified asphalt is 1:50.
The emulsified asphalt material modified middle star-shaped sbs and rubber powder of the present invention combine star as modified-high polymer material
Type SBS and rubber powder performance advantage, can assign Asphalt Emulsion Evaporation Residue excellent mechanical property, and pass through rubber
The effect of powder can reduce SBS consumption, so as to effectively reduce material cost；Polyphosphoric acids carries out grafting modification to SBS,
So that SBS has hydrophilicity, so as to improve its ability being emulsified, and rubber powder desulfurization is liquefied, and then make it in emulsification
There is good compatibility in pitch, and polyphosphoric acids is as inorganic polymer, can effectively improve emulsified asphalt evaporation residual
Stay the high-temperature behavior of thing；Nonionic asphalt emulsifier will not be electrolysed in water, the modification agent emulsion of preparation without positive and negative charge,
Therefore the modification of cationic emulsified bitumen can be used for, the modification of anionic emulsified bitumen, and nonionic pitch can be used for again
Emulsifying agent is good with ionic emulsifying agent compatibility, can effectively improve the stability of modified emulsifying asphalt.These components and match somebody with somebody
The combination of ratio is determined by lot of experiments, and modified emulsifying asphalt can be made to have height in the case where such raw material is constituted and is matched
The excellent balance of warm nature energy and cryogenic property.
The present invention has the advantages that compared with prior art：
1st, environmental pollution is not only avoid without using solvent in the material modified production technology of emulsified asphalt of the invention, and
And the negative effect that dissolvent residual evaporates physical performance to emulsified asphalt is avoided, and with simple and convenient technical advantage；
2nd, emulsified asphalt of the invention is material modified is modified using conventional method to emulsified asphalt, i.e., directly by breast
Change modified asphalt material to be added in emulsified asphalt, the modification of emulsified asphalt can be completed by stirring.
Embodiment
The above to the present invention is described in further details by the following examples, but this should not be interpreted as to this
The scope for inventing above-mentioned theme is only limitted to following embodiment, and all technologies realized based on the above of the present invention belong to this hair
Bright scope.
In the following Examples and Comparative Examples, reflect that emulsified asphalt is modified material by the performance indications of modified emulsifying asphalt
The modified effect of material.According to《Highway engineering pitch and Asphalt Mixture Experiment code》T0605-2011 in (JTG E20-2011)
" bitumen ductility experiment ", T0606-2011 " bituminous softening-point test (ring and ball method) " are obtained respectively to be referred to below modified emulsifying asphalt
Mark：5 DEG C of ductilities and softening point.5 DEG C of ductilities reflect the cryogenic property of modified emulsifying asphalt, and numerical value is more big, illustrates cryogenic property more
It is good；Softening point refers to that under certain condition pitch reaches temperature during a certain denseness, and numerical value is more high, shows high-temperature behavior more
It is good.
Embodiment
The material modified raw material composition and ratio of 1-3 emulsified asphalts of the embodiment of the present invention is shown in Table 1：
The material modified raw material composition and ratio (Kg) of the emulsified asphalt of table 1
| Embodiment | Polyphosphoric acids | SBS | Rubber powder | Nonionic asphalt emulsifier | Deionized water |
| 1 | 6 | 12 | 18 | 12 | 50 |
| 2 | 8 | 18 | 27 | 17 | 60 |
| 3 | 12 | 24 | 36 | 22 | 70 |
The material modified preparation method of 1-3 emulsified asphalts of the embodiment of the present invention is：
(1) various raw materials are prepared respectively according to the material modified raw material composition and ratio of emulsified asphalt described in table 1；
(2) polyphosphoric acids is heated to 105 DEG C and be incubated；
(3) styrene-butadiene block copolymer SBS and rubber powder are heated to 65 DEG C, then add it to step (2)
In the polyphosphoric acids of insulation, then heat to 120 DEG C and be incubated 3h；
(4) mixed material for obtaining step (3) is down to addition nonionic asphalt emulsifier after room temperature, then with 300r/min
Rotating speed stirring 30min, deionized water is then added while stirring, be stirred continuously until homogeneous latex emulsion formation i.e. be made emulsification drip
It is blue or green material modified.
The material modified 40g of obtained emulsified asphalt is added directly into the emulsified asphalt that 2000g solid contents are 60% simultaneously
Obtained modified emulsifying asphalt is uniformly mixed, the performance indications of modified emulsifying asphalt are tested, test result is shown in Table 2.
Comparative example
From SBR latex as emulsified bitumen modifying agent, it is 60% to take SBR latex 40g to be added directly into 2000g solid contents
Emulsified asphalt in and be uniformly mixed obtained modified emulsifying asphalt, test the performance indications of modified emulsifying asphalt, test knot
Fruit is shown in Table 2：
The modified emulsifying asphalt performance test results of table 2
5 DEG C of ductilities of each embodiment and comparative example and softening point test data explanation in above-mentioned table 2, either in unicity
On energy, or in combination property, material modified the be modified emulsified asphalt performance of emulsified asphalt of the invention is all substantially better than
The modified emulsifying asphalt performance of comparative example.
Embodiment above describes general principle, principal character and the advantage of the present invention, the technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, under the scope for not departing from the principle of the invention, various changes and modifications of the present invention are possible, and these changes and improvements are each fallen within
In the scope of protection of the invention.
Claims (5)
1. a kind of emulsified asphalt is material modified, it is characterised in that be prepared from by the raw material of following parts by weight：Polyphosphoric acids
6-12 parts, 12-24 parts of styrene-butadiene block copolymer, 18-36 parts of rubber powder, 12-22 parts of nonionic asphalt emulsifier and
50-70 parts of deionized water, wherein rubber powder are the 80 mesh rubber powders that meridian junked tire is produced.
2. emulsified asphalt according to claim 1 is material modified, it is characterised in that：The polyphosphoric acids, styrene-fourth two
The mass ratio of alkene block copolymer and rubber powder is 1:2:3.
3. emulsified asphalt according to claim 1 is material modified, it is characterised in that：The Styrene-Butadiene block is total to
Polymers is star polymerization structure, and relative molecular mass is 150,000-20 ten thousand.
4. a kind of material modified preparation method of emulsified asphalt in claim 1-3 described in any one, it is characterised in that tool
Body step is：
（1）The polyphosphoric acids of 6-12 parts by weight is heated to 105 DEG C and is incubated；
（2）The rubber powder of the styrene-butadiene block copolymer of 12-24 parts by weight and 18-36 parts by weight is heated to 65 DEG C,
It is then added into step（1）In the polyphosphoric acids of insulation, it is warming up to 120 DEG C and is incubated 3h；
（3）By step（2）Obtained mixed material is down to after room temperature the nonionic asphalt emulsifier for adding 12-22 parts by weight, then
30min is stirred with 300r/min rotating speed, the deionized water of 50-70 parts by weight is then added while stirring, is stirred continuously until
It is material modified that emulsified asphalt is made in homogeneous latex emulsion formation.
5. the material modified application in modified emulsifying asphalt is prepared of emulsified asphalt in claim 1-3 described in any one,
It is characterized in that detailed process is：Material modified be added directly into the emulsified asphalt that solid content is 60% of emulsified asphalt is stirred
Well mixed that modified emulsifying asphalt is made, the wherein material modified mass ratio with emulsified asphalt of emulsified asphalt is 1:50.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540865.0A CN107189463A (en) | 2017-07-05 | 2017-07-05 | A kind of emulsified asphalt is material modified, preparation method and its application in modified emulsifying asphalt is prepared |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540865.0A CN107189463A (en) | 2017-07-05 | 2017-07-05 | A kind of emulsified asphalt is material modified, preparation method and its application in modified emulsifying asphalt is prepared |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698992A (en) * | 2017-10-31 | 2018-02-16 | 桂林市漓江机电制造有限公司 | A kind of emulsified asphalt is material modified and preparation method thereof |
| CN107722414A (en) * | 2017-10-31 | 2018-02-23 | 桂林市漓江机电制造有限公司 | A kind of heat-resisting freeze proof modified asphalt material and preparation method thereof |
| CN111286209A (en) * | 2020-03-31 | 2020-06-16 | 东南大学 | SBS high-viscosity modified emulsified asphalt material and preparation process thereof |
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| CN103788668A (en) * | 2013-12-30 | 2014-05-14 | 长沙理工大学 | Composite modified asphalt and preparation method thereof |
| CN104194364A (en) * | 2014-09-11 | 2014-12-10 | 广西国创道路材料有限公司 | Composite asphalt modifier, composite modified asphalt and production process of composite asphalt modifier and composite modified asphalt |
| CN104479375A (en) * | 2014-12-04 | 2015-04-01 | 天津海泰环保科技发展有限公司 | SBS (styrene-butadiene-styrene triblock copolymer) and liquid rubber composite modified emulsified asphalt and preparation method thereof |
| CN105176115A (en) * | 2015-10-14 | 2015-12-23 | 辽宁省交通科学研究院 | SBS-rubber powder composite modified asphalt and preparation method thereof |
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| CN106633951A (en) * | 2016-09-22 | 2017-05-10 | 河北冀通路桥建设有限公司 | Rubber powder compound modified asphalt composition as well as preparation and application thereof |
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| US6136898A (en) * | 1999-06-15 | 2000-10-24 | Marathon Ashland Petroleum Llc | Unblown ethylene-vinyl acetate copolymer treated asphalt and its method of preparation |
| CN103788668A (en) * | 2013-12-30 | 2014-05-14 | 长沙理工大学 | Composite modified asphalt and preparation method thereof |
| CN104194364A (en) * | 2014-09-11 | 2014-12-10 | 广西国创道路材料有限公司 | Composite asphalt modifier, composite modified asphalt and production process of composite asphalt modifier and composite modified asphalt |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698992A (en) * | 2017-10-31 | 2018-02-16 | 桂林市漓江机电制造有限公司 | A kind of emulsified asphalt is material modified and preparation method thereof |
| CN107722414A (en) * | 2017-10-31 | 2018-02-23 | 桂林市漓江机电制造有限公司 | A kind of heat-resisting freeze proof modified asphalt material and preparation method thereof |
| CN111286209A (en) * | 2020-03-31 | 2020-06-16 | 东南大学 | SBS high-viscosity modified emulsified asphalt material and preparation process thereof |
| CN111286209B (en) * | 2020-03-31 | 2022-03-04 | 东南大学 | SBS high-viscosity modified emulsified asphalt material and preparation process thereof |
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