CN109575617A - A kind of emulsified asphalt and preparation method thereof - Google Patents
A kind of emulsified asphalt and preparation method thereof Download PDFInfo
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- CN109575617A CN109575617A CN201811474279.1A CN201811474279A CN109575617A CN 109575617 A CN109575617 A CN 109575617A CN 201811474279 A CN201811474279 A CN 201811474279A CN 109575617 A CN109575617 A CN 109575617A
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- emulsifier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
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Abstract
The present invention provides a kind of emulsified asphalts, are prepared by the raw material for including following components: the pitch of 50wt%~60wt%, the composite emulsifier of 1.5wt%~4.5wt% and the water of surplus；Wherein composite emulsifier is made of the cationic emulsifier of 1wt%~3wt% and the nonionic emulsifier of 0.5wt%~1.5wt%.Present invention also provides the preparation methods of emulsified asphalt.Emulsified asphalt provided by the invention is due to being added Compositional type emulsifier, so that emulsified asphalt has superior storage stability, and performance meets PC-2 type emulsified asphalt index request in JTG-F40-2004 " standard specification for construction and acceptance of highway asphalt pavement " standard.
Description
Technical field
The present invention relates to asphalt production technical fields more particularly to a kind of emulsified asphalt and preparation method thereof.
Background technique
Pitch can be divided into asphalt, coal tar pitch and bitumen etc..Pitch is a kind of solid-state or semisolid at normal temperature
Sticky mass has good cementability and fire resistance characteristic, is mainly used in bituminous pavement and buildings waterproof etc..Tradition
Asphalt roads will construct at high temperature, and asphalt temperature is excessively high easily to be caused to burn to human body, and high temperature generates pitch smog to human body
And environment causes larger harm.For this drawback, seek a kind of road asphalt that can be constructed under room temperature or low-temperature condition
As trend of the times, thus emulsified asphalt technology comes into being, and emulsified asphalt has specific heat drip in numerous road constructions application
Green more safe and environment-friendly and energy saving feature.
The prior art of emulsified asphalt exactly melts pitch heat, by the mechanism of colloid mill, makes pitch with tiny
Micro-droplet status is scattered in the aqueous solution containing emulsifier and auxiliary agent, and wherein bitumen particle is uniformly dispersed, to obtain stable
Lotion.Emulsified asphalt has good mobility at normal temperature, can also construct under low temperature, improve the convenience of work progress,
Construction cost is reduced, pollution of the pitch smog that also can avoid generating in pitch heating process to environment and the person, to reach
To saving, the effect of safety and environmental protection.Emulsified asphalt is mainly used in maintenance of surface, such as cold mixing material, slurry seal, it is also possible to
In newly-built road construction, such as sticking layer oil, priming oil.
Emulsified asphalt storing stability suffers from vital influence to emulsified asphalt production, storage, construction etc..But it is existing
In the stage, for emulsified asphalt there are easy layering and precipitating, overlong time is easy isolation, cause it is insufficient with building stones cohesive force, or even occur with
The unmatched phenomenon of building stones.Due to being influenced by ambient air temperature, the emulsification for being easier to emulsified asphalt should be selected in process of production
Agent, so that the emulsified asphalt produced has excellent storage stability.Therefore, prior art is improved by certain method
The stability for improving emulsified asphalt is very important.
Summary of the invention
Present invention solves the technical problem that being to provide a kind of emulsified asphalt that stability is good.
In view of this, being prepared this application provides a kind of emulsified asphalt by the raw material for including following components:
Pitch 50wt%~60wt%；
Composite emulsifier 1.5wt%~4.5wt%；
The water of surplus；
The composite emulsifier by 1wt%~3wt% cationic emulsifier and 0.5wt%~1.5wt% it is non-from
Subtype emulsifier composition.
Preferably, the nonionic emulsifier be selected from one of polyoxethylene octylphenyl phenol ether and polyoxyethylene ether or
Two kinds；
The cationic emulsifier is quaternary ammonium salt or propylene diamine.
It preferably, further include the stabilizer of 0.02wt%~0.1wt% in the raw material；The stabilizer is selected from calcium chloride
One or both of with carboxymethyl cellulose.
Preferably, the content of the composite emulsifier is 2wt%~4wt%.
Preferably, the content of cationic emulsifier described in the composite emulsifier is 1.5wt%~2.5wt%.
Present invention also provides the preparation methods of the emulsified asphalt, comprising the following steps:
It is heated after water and composite emulsifier are mixed, obtains soap lye；
The pitch of the soap lye and heating is added after colloid mill is preheated, obtains emulsified asphalt.
Preferably, in the step of preparing soap lye, the temperature of the heating is 50~60 DEG C.
Preferably, the step of obtaining emulsified asphalt specifically:
Colloid mill is preheated, 1~2min of the soap lye high-speed circulating is added, is subsequently poured into the pitch high-speed stirred of heating
1~2min obtains emulsified asphalt.
Preferably, the temperature of the pitch of the heating is 135~145 DEG C.
This application provides a kind of emulsified asphalts, are prepared by the raw material for including following components: 50wt%~
The pitch of 60wt%, the composite emulsifier of 1.5wt%~4.5wt% and the water of surplus；Wherein composite emulsifier by 1wt%~
The cationic emulsifier of 3wt% and the nonionic emulsifier composition of 0.5wt%~1.5wt%.In the application emulsified asphalt
Cationic emulsifier keep emulsified asphalt institute electrically charged for positive charge, contacted when with base-material, for base-material generally in acidity, institute is electrically charged
For negative electrical charge, due to charge property difference, there is a natural attraction between the sexes, and under external force stirring, so that pitch is demulsified；In cationic emulsifier
Nonionic emulsifier is added in solution, has the function of composite synergistic, emulsifying effectiveness can be greatly improved, makes emulsified asphalt performance
It is improved；The molecule of nonionic emulsifier contains hydrophilic group and lipophilic group, and lotion table can be effectively reduced to a certain extent
Face tension, and neutral itself, increase Zeta potential, reduce the electrostatic tension between pitch particle, to make double electricity
Layer is more stable, is more advantageous to pitch storage stability.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described below with reference to embodiment, still
It should be appreciated that these descriptions are only further explanation the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
For the problem of emulsified asphalt stability difference in the prior art, this application provides a kind of emulsified asphalt and its preparations
Method, the emulsified asphalt is by being added compounding cationic emulsifier and nonionic emulsifier, the emulsified asphalt tool made
There is preferable stability.Specifically, the emulsified asphalt is by including that the raw material of following components is prepared:
Pitch 50wt%~60wt%；
Composite emulsifier 1.5wt%~4.5wt%；
The water of surplus；
The composite emulsifier by 1wt%~3wt% cationic emulsifier and 0.5wt%~1.5wt% it is non-from
Subtype emulsifier composition.
In emulsified asphalt, the pitch is base-material, is pitch well known to those skilled in the art, does not have to this application
There is special limitation.The content of the pitch is 50wt%~60wt%；In certain specific embodiments, the content of the pitch
For 52wt%~58wt%.
The composite emulsifier is specifically by the cationic emulsifier of 1wt%~3wt% and 0.5wt%~1.5wt%
Nonionic emulsifier composition；More specifically, the cationic emulsifier is quaternary ammonium salt or propylene diamine；It is described non-ionic
Emulsifier is selected from one or both of polyoxethylene octylphenyl phenol ether and polyoxyethylene ether；In a particular embodiment, described non-
Ionic emulsifying agent is selected from polyoxethylene octylphenyl phenol ether, and the cationic emulsifier is selected from quaternary ammonium salt.The cationic
The content of emulsifier is 1wt%~3wt%, in a particular embodiment, the content of the cationic emulsifier be 1.5wt%~
2.5wt%；The content of the nonionic emulsifier is 0.5wt%~1.5wt%.
Emulsifier size is directly related to the stabilization of emulsified asphalt.Emulsion process is substantially to use surfactant
Reduce the process of surface tension.When emulsifier concentration increases in solution, surface tension constantly declines, if continuing growing emulsifier
Concentration, reach after certain value then variation less, this is because emulsifier molecules form spherical and rodlike glue in aqueous solution
Group, this emulsifier concentration for initially forming micelle is critical micelle concentration.Therefore there are an optimum amounts for emulsifier.Experiment
Show near critical micelle concentration, in addition to interfacial tension minimizes value, other many properties such as electric conductivity, solubility, infiltration
Pressure etc. can all mutate thoroughly.It can determine the critical micelle concentration of emulsifier according to the mutation of these properties, i.e. emulsifier
Minimum amount.Emulsifier is small, and emulsifier molecules are not enough to cover entire oil-water interfaces, and arranges loosely on interface,
Interfacial tension is caused to be not achieved minimum, emulsion system is unstable；Emulsifier is excessive, although interfacial tension is preferably minimized, obtains
Stable lotion has been arrived, but may lead to spume and increase, has influenced quality of the emulsion, has such as caused lotion excessively sticky, to use
It makes troubles, while also will increase production cost.Therefore, it is newborn just to produce stablizing for economical rationality for only suitable emulsifier
Liquid.
In composite emulsifier, it is positive charge that the cationic emulsifier, which keeps emulsified asphalt institute electrically charged, is connect when with base-material
Touching, base-material is generally in acidity, and electrically charged institute is negative electrical charge, and due to charge property difference, there is a natural attraction between the sexes, and under external force stirring,
So that pitch is demulsified；Nonionic emulsifier is added in cation emulsified agent solution, has the function of composite synergistic, it can be significantly
Emulsifying effectiveness is improved, emulsified asphalt performance is improved.
In composite emulsifier, the molecule of the nonionic emulsifier contains hydrophilic group and lipophilic group, to a certain degree
On lotion surface tension, and neutral itself can be effectively reduced, increase Zeta potential, reduce between pitch particle
Electrostatic tension is more advantageous to pitch storage stability to keep electric double layer more stable.
In order to further increase the stability of emulsified asphalt, further include in herein described emulsified asphalt 0.02wt%~
The stabilizer of 0.1wt%, in a particular embodiment, the content of the stabilizer are 0.03wt%~0.08wt%.The stabilization
Agent is selected from one or both of calcium chloride and carboxymethyl cellulose；The addition of calcium chloride is to change the Zeta electricity of emulsified asphalt
Position reduces the density contrast of pitch and water, forms a kind of interfacial film on bitumen particle surface, prevent the cohesion between particle, thus
Improve the stability of emulsified asphalt；The viscosity of pitch can be improved in carboxymethyl cellulose, increases the repulsive force between particle, reduction
Grain sinking speed, to improve the stability of emulsified asphalt.
Present invention also provides the preparation methods of the emulsified asphalt, comprising the following steps:
It is heated after water and composite emulsifier are mixed, obtains soap lye；
The pitch of the soap lye and heating is added after colloid mill is preheated, obtains emulsified asphalt.
During preparing emulsified asphalt, the application mixes water and composite emulsifier first, in accordance with ratio, and heats,
Thus soap lye is obtained.In the process, the temperature of the heating is 50~60 DEG C.
According to the present invention, then colloid mill is preheated and above-mentioned soap lye is added, 1~2min of high-speed circulating；It is eventually adding
The pitch of preheating, 1~2min of high-speed stirred, can be obtained emulsified asphalt.In the process, the pitch of preheating can prepare in advance,
Pitch is previously heated to 135~145 DEG C.
When stabilizer being added in the raw material of emulsified asphalt, need to add stabilization after water and composite emulsifier heating
Thus agent obtains the soap lye containing stabilizer；Temperature after heating is higher to be more advantageous to stabilizer dissolution, avoids its dissolution uneven
The problem of causing particle agglomeration.
In above-mentioned preparation process, need to guarantee the temperature of the soap lye and pitch, soap lye temperature is too low, then makes emulsifier
And stabilizer dissolution is uneven, reduces emulsifying effectiveness, temperature is excessively high, inactivates emulsifier, and in colloid mill shear history easily
Since high temperature causes splash, cause harm to the human body；Asphalt temperature is too low, then is not easy to be mixed with soap lye, causes particle point
It dissipates unevenly, temperature is excessively high, makes the aging of pitch part, in addition to easily causing splash in colloid mill shear history, also easily due to height
Temperature causes emulsified asphalt to be demulsified.
It include composite emulsifier in raw material the present invention provides a kind of emulsified asphalt, though emulsifier compounding can reach
Improve emulsified asphalt stability effect, but and not all cation compounded with nonionic emulsifier and be attained by this purpose,
There is the suitable cation of selection to compound with nonionic emulsifier, preferably suitable additive amount can be only achieved.Therefore, prepared by the present invention
Emulsified asphalt have good stability, and particle is uniformly dispersed, that is, solves that emulsified asphalt storing stability is insufficient to ask
Topic, since nonionic emulsifier is added, Zeta potential is more stable, thus it is more preferable with aggregate associativity, and construct at normal temperature,
It is simple and easy, play the purpose for reducing construction cost and protecting environment.
For a further understanding of the present invention, below with reference to embodiment to emulsified asphalt provided by the invention and preparation method thereof
It is described in detail, protection scope of the present invention is not limited by the following examples.
Embodiment 1
Emulsified asphalt is prepared by each component of following mass percent: pitch 60%, composite emulsifier 2% and remaining
The water of amount；
The composite emulsifier includes 0.5% cationic emulsifier, 0.5% nonionic emulsifier；It is described non-
Ionic emulsifying agent is polyoxethylene octylphenyl phenol ether (OP-10), and the cationic emulsifier is quaternary ammonium salt；
The emulsified asphalt is prepared via a method which:
Water and composite emulsifier are uniformly dissolved according to the ratio, and are heated to 50~60 DEG C, obtains soap lye；Pitch is heated to
It is 135 DEG C~145 DEG C, spare；
Colloid mill is preheated, and soap lye is added in colloid mill and is recycled 1~2 minute, will be added in the pitch of molten condition
Enter into colloid mill, and high-speed stirred recycles 1~2 minute, forms emulsified asphalt, wherein pitch about adds within 1min
It finishes.
Embodiment 2
Emulsified asphalt is prepared by each component of following mass percent: pitch 60%, composite emulsifier 2.5% and
The water of surplus；
The composite emulsifier includes 2% cationic emulsifier, 0.5% nonionic emulsifier；It is described it is non-from
Subtype emulsifier is polyoxethylene octylphenyl phenol ether (OP-10), and the cationic emulsifier is quaternary ammonium salt.
The emulsified asphalt is prepared via a method which:
Water and composite emulsifier are uniformly dissolved according to the ratio, and are heated to 50~60 DEG C, obtains soap lye；Pitch is heated to
It is 135 DEG C~145 DEG C, spare；
Colloid mill is preheated, and soap lye is added in colloid mill and is recycled 1~2 minute, will be added in the pitch of molten condition
Enter into colloid mill, and high-speed stirred recycles 1~2 minute, forms emulsified asphalt, wherein pitch about adds within 1min
It finishes.
Embodiment 3
Emulsified asphalt is prepared by each component of following mass percent: pitch 60%, composite emulsifier 3% and remaining
The water of amount；
The composite emulsifier includes 2.5% cationic emulsifier, 0.5% nonionic emulsifier；It is described non-
Ionic emulsifying agent is polyoxethylene octylphenyl phenol ether (OP-10), and the cationic emulsifier is quaternary ammonium salt.
The emulsified asphalt is prepared via a method which:
Water and composite emulsifier are uniformly dissolved according to the ratio, and are heated to 50~60 DEG C, obtains soap lye；Pitch is heated to
It is 135 DEG C~145 DEG C, spare；
Colloid mill is preheated, and soap lye is added in colloid mill and is recycled 1~2 minute, will be added in the pitch of molten condition
Enter into colloid mill, and high-speed stirred recycles 1~2 minute, forms emulsified asphalt, wherein pitch about adds within 1min
It finishes.
Embodiment 4
Emulsified asphalt is prepared by each component of following mass percent: pitch 60%, composite emulsifier 3.5% and
The water of surplus；
The composite emulsifier includes 2.5% cationic emulsifier, 1% nonionic emulsifier；It is described it is non-from
Subtype emulsifier is polyoxethylene octylphenyl phenol ether (OP-10), and the cationic emulsifier is quaternary ammonium salt.
The emulsified asphalt is prepared via a method which:
Water and composite emulsifier are uniformly dissolved according to the ratio, and are heated to 50~60 DEG C, obtains soap lye；Pitch is heated to
It is 135 DEG C~145 DEG C, spare；
Colloid mill is preheated, and soap lye is added in colloid mill and is recycled 1~2 minute, will be added in the pitch of molten condition
Enter into colloid mill, and high-speed stirred recycles 1~2 minute, forms emulsified asphalt, wherein pitch about adds within 1min
It finishes.
Embodiment 5
Emulsified asphalt is prepared by each component of following mass percent: pitch 60%, composite emulsifier 4% and remaining
The water of amount；
The composite emulsifier includes 2.5% cationic emulsifier, 1.5% nonionic emulsifier；It is described non-
Ionic emulsifying agent is polyoxethylene octylphenyl phenol ether (OP-10), and the cationic emulsifier is quaternary ammonium salt.
The emulsified asphalt is prepared via a method which:
Water and composite emulsifier are uniformly dissolved according to the ratio, and are heated to 50~60 DEG C, obtains soap lye；Pitch is heated to
It is 135 DEG C~145 DEG C, spare；
Colloid mill is preheated, and soap lye is added in colloid mill and is recycled 1~2 minute, will be added in the pitch of molten condition
Enter into colloid mill, and high-speed stirred recycles 1~2 minute, forms emulsified asphalt, wherein pitch about adds within 1min
It finishes.
Embodiment 6
Emulsified asphalt is prepared by each component of following mass percent: pitch 60%, composite emulsifier 4% and remaining
The water of amount；
The composite emulsifier includes 3% cationic emulsifier, 2% nonionic emulsifier；The nonionic
Type emulsifier is polyoxethylene octylphenyl phenol ether (OP-10), and the cationic emulsifier is quaternary ammonium salt.
The emulsified asphalt is prepared via a method which:
Water and composite emulsifier are uniformly dissolved according to the ratio, and are heated to 50~60 DEG C, obtains soap lye；Pitch is heated to
It is 135 DEG C~145 DEG C, spare；
Colloid mill is preheated, and soap lye is added in colloid mill and is recycled 1~2 minute, will be added in the pitch of molten condition
Enter into colloid mill, and high-speed stirred recycles 1~2 minute, forms emulsified asphalt, wherein pitch about adds within 1min
It finishes.
Embodiment 7
Emulsified asphalt is prepared by each component of following mass percent: pitch 60%, composite emulsifier 3%,
The water of 0.08% carboxymethyl cellulose and surplus；
The composite emulsifier includes 2.5% cationic emulsifier, 0.5% nonionic emulsifier；It is described non-
Ionic emulsifying agent is polyoxethylene octylphenyl phenol ether (OP-10), and the cationic emulsifier is quaternary ammonium salt.
The emulsified asphalt is prepared via a method which:
According to the ratio by water and composite emulsifier, be uniformly dissolved, and be heated to 50~60 DEG C, stabilizer carboxymethyl cellulose be added
Element, obtains soap lye, and pitch is heated to 135 DEG C~145 DEG C, spare；
Colloid mill preheating, pours into soap lye high-speed circulating 1~2 minute；Addition pitch, high-speed stirred circulation 1~2 minute, i.e.,
Emulsified asphalt can be obtained.
Embodiment 8
Emulsified asphalt is prepared by each component of following mass percent: pitch 60%, composite emulsifier 3%,
The water of 0.08% calcium chloride and surplus；
The composite emulsifier includes 2.5% cationic emulsifier, 0.5% nonionic emulsifier；It is described non-
Ionic emulsifying agent is polyoxethylene octylphenyl phenol ether (OP-10), and the cationic emulsifier is quaternary ammonium salt.
The emulsified asphalt is prepared via a method which:
According to the ratio by water and composite emulsifier, be uniformly dissolved, and be heated to 50~60 DEG C, stabilizer calcium chloride be added, obtains
To soap lye, pitch is heated to 135 DEG C~145 DEG C, spare；
Colloid mill preheating, pours into soap lye high-speed circulating 1~2 minute；Addition pitch, high-speed stirred circulation 1~2 minute, i.e.,
Emulsified asphalt can be obtained.
Comparative example 1
This comparative example is similar to Example 1, and difference is, is not added with nonionic emulsifier OP-10.
Above-described embodiment and comparative example are compared, and Indexs measure is carried out to the emulsified asphalt of preparation, test result is as follows table
It is shown:
The performance data table of 1 embodiment of table and the emulsified asphalt of comparative example preparation
Above-mentioned data are analyzed it is found that emulsified asphalt performance prepared by comparative example is unsatisfactory for JTG_F40-2004
PC-2 type emulsified asphalt index request in " standard specification for construction and acceptance of highway asphalt pavement " standard；After nonionic emulsifier is added, such as
Embodiment 1, stability increases, but still bad；Cationic emulsifier and nonionic emulsifier additive amount are further increased, such as
Embodiment 2~5, the emulsified asphalt performance of preparation meet PC-2 technical requirements, and as cationic emulsifier and nonionic add
The increase of amount, stability improve；In order to further increase emulsified asphalt stability, pass through addition stabilizer calcium chloride and carboxymethyl
Cellulose, such as embodiment 7~8, the addition of stability not only improves the viscosity of emulsified asphalt to a certain extent, also makes to stablize
Property improve, thus more conducively storage stability.
According to table 1, the content of 1 composite emulsifier of embodiment is low, and stability indicator is underproof；Compound emulsion
Agent is mainly reflected in embodiment 2~5 raising of stability；Composite emulsifier too high levels, such as 6 emulsifier mistake of embodiment
Height will cause unreacted emulsifier molecules and reunite, influence emulsion dispersibility, to influence stability.Therefore, compounding cream
Agent optimum content is embodied in embodiment 2~5.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of emulsified asphalt is prepared by the raw material for including following components:
Pitch 50wt%~60wt%；
Composite emulsifier 1.5wt%~4.5wt%；
The water of surplus；
The composite emulsifier by 1wt%~3wt% cationic emulsifier and 0.5wt%~1.5wt% it is non-ionic
Emulsifier composition.
2. emulsified asphalt according to claim 1, which is characterized in that it is pungent that the nonionic emulsifier is selected from polyoxyethylene
One or both of alkylphenol ether and polyoxyethylene ether；
The cationic emulsifier is quaternary ammonium salt or propylene diamine.
3. emulsified asphalt according to claim 1, which is characterized in that further include in the raw material 0.02wt%~
The stabilizer of 0.1wt%；The stabilizer is selected from one or both of calcium chloride and carboxymethyl cellulose.
4. emulsified asphalt according to claim 1, which is characterized in that the content of the composite emulsifier be 2wt%~
4wt%.
5. emulsified asphalt according to claim 1 or 4, which is characterized in that cationic described in the composite emulsifier
The content of emulsifier is 1.5wt%~2.5wt%.
6. the preparation method of the described in any item emulsified asphalts of Claims 1 to 5, comprising the following steps:
It is heated after water and composite emulsifier are mixed, obtains soap lye；
The pitch of the soap lye and heating is added after colloid mill is preheated, obtains emulsified asphalt.
7. preparation method according to claim 6, which is characterized in that in the step of preparing soap lye, the temperature of the heating
Degree is 50~60 DEG C.
8. preparation method according to claim 6, which is characterized in that the step of obtaining emulsified asphalt specifically:
Colloid mill is preheated, 1~2min of the soap lye high-speed circulating is added, be subsequently poured into the pitch high-speed stirred 1 of heating~
2min obtains emulsified asphalt.
9. the preparation method according to claim 6 or 8, which is characterized in that the temperature of the pitch of the heating be 135~
145℃。
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| CN110218462B (en) * | 2019-06-26 | 2021-05-25 | 重庆海木交通技术有限公司 | Nonionic emulsified asphalt and preparation method thereof |
| CN111793369A (en) * | 2020-08-03 | 2020-10-20 | 山东京博石油化工有限公司 | Spraying SBS modified emulsified asphalt and preparation method thereof |
| CN112411302A (en) * | 2020-11-18 | 2021-02-26 | 西安公路研究院 | Impermeable composite material and preparation method thereof, impermeable pavement and construction method thereof |
| CN112411302B (en) * | 2020-11-18 | 2022-07-15 | 西安公路研究院 | Impermeable composite material and preparation method thereof, impermeable pavement and construction method thereof |
| CN113025069A (en) * | 2021-03-12 | 2021-06-25 | 山东京博石油化工有限公司 | Emulsified asphalt and preparation method thereof |
| CN114621678A (en) * | 2022-03-29 | 2022-06-14 | 山东锦绣防水科技有限公司 | Liquid coiled material waterproof paint and preparation method thereof |
| CN115181496A (en) * | 2022-08-15 | 2022-10-14 | 江西玉龙防水科技有限公司 | Water-based non-cured rubber asphalt waterproof coating and preparation method thereof |
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