CN106009739A - Modified emulsified asphalt for ultrathin wearing layers and preparation method thereof - Google Patents
Modified emulsified asphalt for ultrathin wearing layers and preparation method thereof Download PDFInfo
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- CN106009739A CN106009739A CN201610613225.3A CN201610613225A CN106009739A CN 106009739 A CN106009739 A CN 106009739A CN 201610613225 A CN201610613225 A CN 201610613225A CN 106009739 A CN106009739 A CN 106009739A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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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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- 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
- C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Colloid Chemistry (AREA)
Abstract
The invention relates to a modified emulsified asphalt for ultrathin wearing layers and a preparation method thereof. The modified emulsified asphalt for ultrathin wearing layers is composed of the following components in percentage by mass: 43.5-53.8% of substrate asphalt, 1.5-3.2% of modifier SBS (styrene-butadiene-styrene), 0.25-1.6% of stabilizer, 3-5% of cationic emulsifier, 2-8% of diluter, 3-5% of suspending agent, 2-3% of hydrochloric acid and 30-40% of water. The preparation method comprises the following steps: 1. heating the substrate asphalt; 2. adding the modifier into the substrate asphalt, stirring uniformly, and carrying out shear dispersion by using a high-speed shearer; 3. adding a stabilizer for development to obtain an SBS modified asphalt for emulsification, and cooling; 4. dissolving the emulsifier, diluter and suspending agent in water, and regulating the pH value with hydrochloric acid to obtain a soap solution; and 5. preparing the modified emulsified asphalt for ultrathin wearing layers from the modified asphalt obtained in the step 3 and the soap solution according to the ratio of 2:1 by emulsifying equipment.
Description
Technical field
The invention belongs to petrochemical industry, relate to formula and the preparation thereof of a kind of ultra-thin wearing layer modified emulsifying asphalt
Method.
Background technology
Along with the development of expressway construction, people to Road Transportation, the haulage time of especially remote traffic,
The speed of service of vehicle, driving comfort level have higher requirement, are building or the serviceability of built road must be correspondingly improved.
Ultra-thin wearing layer is the technology combined with emulsified asphalt by hot-mix asphalt mixture, it is possible to solution slight crack, road surface,
The loosest, rut (less than 15mm), pavement seepage, the diseases such as surface is oil-poor, aging, antiskid performance reduction, can be not only used for old
The recovery of road surface function, can be used for again the antiskid layer of new pavement.The high evaporation of ultra-thin wearing layer modified emulsifying asphalt
Residuals content advantageously reduces moisture and evaporates the generation reducing hole in a large number, improves the serviceability on road surface, ultra-thin abrasion
The high storage stability of layer modified emulsifying asphalt makes emulsified asphalt to store for a long time, is conducive to wrapping up in of mixing compound
Cover.
Chinese patent CN201610047420.4 is to be heated by matrix pitch, adds SBS modifier stirring, and SBS is modified
Agent evenly spreads in matrix pitch, prepares SBS modified pitch；SBS modified pitch is heated, adds thinner, by thinner
Evenly spread in SBS modified pitch, prepare emulsifying SBS modified pitch；During emulsifying, prepared SBS modified pitch is placed in breast
In the asphalt tank of change equipment, in Soap liquid pot, add cationic emulsifier and water, prepare soap lye after stirring, regulate soap lye
pH；SBS modified emulsifying asphalt is i.e. obtained by mass percentage after colloid mill emulsifying, pressurization cooling；After Colophonium to be emulsified cooling
Outer fill into SBR modifying agent, carry out twice-modified.The height that this patent provides glues composite modified emulsification asphalt high-temperature behavior to be improved not
Substantially, the features such as storage stability is poor, easy breakdown of emulsion, and embodiment do not provide En Gela viscosity index.
Chinese patent CN201310348059.5 is to be heated by matrix pitch, adds modifying agent, by grinding after stirring
Grinding machine grinds, and prepares modified pitch；Emulsifying agent and stabilizer are added to the water, regulate pH value with adjuvant, prepare soap lye；Will
Modified pitch and soap lye prepare modified emulsifying asphalt by emulsifier unit in proportion.The ultra-thin wearing layer that this patent provides is modified
Asphalt Emulsion Evaporation Residue content is high, En Gela viscosity is the highest, reduces the serviceability of modified emulsifying asphalt.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of ultra-thin wearing layer modified emulsifying asphalt and preparation side thereof
Method, the raw material of this ultra-thin wearing layer modified pitch is general industrial products, and raw material is easy to get.Colophonium is for meeting JTG F40-
2004 bi tumenf orr oads required, modifying agent is type SBS, and stabilizer is inorganic sulfur, organosulfur compound, and diluent is low
Sulfur cycloalkyl second line of distillation, low-sulfur cycloalkyl subtract three line, suspending agent is Al2(SO4)3。
Modifying agent in the present invention can be obviously improved the high and low temperature performance of modified pitch；Stabilizer can promote and cause
Colophonium and the cross-linking reaction of modifying agent, form solid space network structure, improve the storage stability of modified pitch；Diluent energy
Enough on the premise of not reducing evaporated residue content, the En Gela viscosity of modified emulsifying drip is greatly reduced, makes modified emulsifying drip
Green grass or young crops is provided simultaneously with high evaporated residue content and low En Gela viscosity；Produce cation after suspending agent hydrolysis, make Colophonium and water
System reaches a stable degree, delays modified emulsifying asphalt breakdown of emulsion, increases Pavement Condition.
For reaching object above, present invention employs techniques below scheme: a kind of ultra-thin wearing layer modified emulsifying asphalt,
The mass percent of its component is: matrix pitch 43.5% ~ 53.8%, modifying agent SBS 1.5% ~ 3.2%, stabilizer 0.25% ~
1.6%, cationic emulsifier 3% ~ 5%, diluent 2 ~ 8%, suspending agent 3 ~ 5%, hydrochloric acid 2% ~ 3%, water 30% ~ 40%；
Its preparation method comprises the steps:
1, matrix pitch is heated；
2, modifying agent is joined in matrix pitch, after stirring, use high-speed shearing machine to shear dispersion；
3, add stabilizer to grow, prepare emulsifying SBS modified pitch, cooling；
4, by soluble in water to emulsifying agent, diluent and suspending agent, soap lye is prepared with salt acid for adjusting pH value；
5, the modified pitch and the soap lye that step 3 are obtained prepare ultra-thin wearing layer modified milk in 2:1 ratio by emulsifying device
Change Colophonium.
One ultra-thin wearing layer modified emulsifying asphalt of the present invention, suitable mass percent is: matrix pitch 48% ~
52%, modifying agent SBS 1.9% ~ 2.1%, stabilizer 0. 5% ~ 0.6%, cationic emulsifier 4% ~ 4.2%, diluent 2.4% ~ 3.4%,
Suspending agent 3.9% ~ 4.5%, hydrochloric acid 2.5% ~ 3.0%, water 35% ~ 36%.
One ultra-thin wearing layer modified emulsifying asphalt of the present invention, described matrix pitch needle penetration is 60 dmm ~ 80
Dmm, described modifying agent is styrene butadiene styrene block copolymer (SBS), and mean molecule quantity is 11 ~ 150,000, styrene and
The block of butadiene is than for 3:7, and described stabilizer is inorganic sulfur, organosulfur compound；Described diluent is low-sulfur cycloalkanes
One or both mixture in base second line of distillation, low-sulfur cycloalkyl subtract three line；Described suspending agent is Al2(SO4)3；Described
Modified emulsifying order is first modified emulsifying, and matrix pitch is heated to 175 ~ 185 DEG C, adds modifying agent, stirs, shears, then
Add stabilizer stirring and grow prepared emulsifying SBS modified pitch, be cooled to 125 ~ 135 DEG C；Emulsifying agent, diluent and suspending agent
Prepared soap lye soluble in water, temperature controls at 55 ~ 65 DEG C, finally prepares ultra-thin wearing layer in 2:1 ratio by emulsifying device and uses
Modified emulsifying asphalt.
After using above technical scheme, ultra-thin wearing layer modified emulsifying asphalt prepared by the present invention, use the most modified
The preparation flow of emulsifying, has excellent high temperature performance, reaches the technology requirement in Ministry of Communications's JTG F40-2004 standard, with
Time possess that evaporated residue content is high, softening point high, En Gela viscosity is low, and the advanced level that 5 days storage stabilities are less than 1%,
Production technology is simple, is suitable for large-scale production.
Advantages of the present invention:
(1) raw material that ultra-thin wearing layer modified pitch of the present invention is used is easy to get.Colophonium is for meeting JTG F40-2004 requirement
Bi tumenf orr oad, modifying agent is styrene butadiene styrene block copolymer (SBS), and stabilizer is inorganic sulfur, organic sulfide
Compound, cationic emulsifier is diamine compounds, diluent for being low-sulfur cycloalkyl second line of distillation, the low-sulfur cycloalkyl line that subtracts three,
Suspending agent is Al2(SO4)3。
(2) preparation of this ultra-thin wearing layer modified emulsifying asphalt uses the preparation flow of first modified emulsifying, produces work
Skill is simple, is suitable for large-scale production.
The ultra-thin wearing layer modified emulsifying asphalt that (3) prepared by the present invention has that the softening point of evaporated residue is high, viscosity is low,
The features such as evaporated residue content height and storage stability excellence.
Detailed description of the invention
One ultra-thin wearing layer modified emulsifying asphalt of the present invention, the mass percent of its component is: matrix pitch 43.5%
~ 53.8%, modifying agent SBS 1.5% ~ 3.2%, stabilizer 0.25% ~ 1.6%, cationic emulsifier 3% ~ 5%, diluent 2 ~ 8%, outstanding
Floating agent 3 ~ 5%, hydrochloric acid 2% ~ 3%, water 30% ~ 40%；
Its preparation method comprises the steps:
1, matrix pitch is heated；
2, modifying agent is joined in matrix pitch, after stirring, use high-speed shearing machine to shear dispersion；
3, add stabilizer to grow, prepare emulsifying SBS modified pitch, cooling；
4, by soluble in water to emulsifying agent, diluent and suspending agent, soap lye is prepared with salt acid for adjusting pH value；
5, the modified pitch and the soap lye that step 3 are obtained prepare ultra-thin wearing layer modified milk in 2:1 ratio by emulsifying device
Change Colophonium.
One ultra-thin wearing layer modified emulsifying asphalt of the present invention, suitable mass percent is: matrix pitch 48% ~
52%, modifying agent SBS 1.9% ~ 2.1%, stabilizer 0. 5% ~ 0.6%, cationic emulsifier 4% ~ 4.2%, diluent 2.4% ~ 3.4%,
Suspending agent 3.9% ~ 4.5%, hydrochloric acid 2.5% ~ 3.0%, water 35% ~ 36%.
One ultra-thin wearing layer modified emulsifying asphalt of the present invention, described matrix pitch needle penetration is 60 dmm ~ 80
Dmm, described modifying agent is styrene butadiene styrene block copolymer (SBS), and mean molecule quantity is 11 ~ 150,000, styrene and
The block of butadiene is than for 3:7, and described stabilizer is inorganic sulfur, organosulfur compound；Described diluent is low-sulfur cycloalkanes
One or both mixture in base second line of distillation, low-sulfur cycloalkyl subtract three line；Described suspending agent is Al2(SO4)3；Described
Modified emulsifying order is first modified emulsifying, and matrix pitch is heated to 175 ~ 185 DEG C, adds modifying agent, stirs, shears, then
Add stabilizer stirring and grow prepared emulsifying SBS modified pitch, be cooled to 125 ~ 135 DEG C；Emulsifying agent, diluent and suspending agent
Prepared soap lye soluble in water, temperature controls at 55 ~ 65 DEG C, finally prepares ultra-thin wearing layer in 2:1 ratio by emulsifying device and uses
Modified emulsifying asphalt.
Its concrete preparation method comprises the steps:
1, matrix pitch is heated to 175 ~ 185 DEG C；
2, modifying agent is joined in matrix pitch, after stirring, use high-speed shearing machine to shear dispersion；
3, add stabilizer to grow, prepare emulsifying SBS modified pitch, be cooled to 125 ~ 135 DEG C；
4, by soluble in water to emulsifying agent, diluent and suspending agent, with salt acid for adjusting pH value 1.5 ~ 2.5, preparing soap lye, temperature controls
At 55 ~ 65 DEG C；
5, the modified pitch and the soap lye that step 3 are obtained prepare ultra-thin wearing layer modified milk in 2:1 ratio by emulsifying device
Change Colophonium.
The technique effect of the present invention is further described below, it is thus understood that these examples are only used for the mesh of illustration with example
, not limiting the scope of the invention, those of ordinary skill in the art are obviously changed also according to what the present invention made simultaneously
Comprise within the scope of the present invention.
Embodiment 1
With low-sulfur cycloalkyl second line of distillation as diluent.Experiment weighs 480g Colophonium, 19g modifying agent, 5g stabilizer, 42g cation
Emulsifying agent, 34g diluent, 45g suspending agent, 25g hydrochloric acid, 350g water.Matrix pitch is heated to 180 DEG C, is joined by modifying agent
In matrix pitch, use high-speed shearing machine to shear dispersion after stirring, add stabilizer, prepare emulsifying SBS after growth and change
Property Colophonium, by soluble in water to cationic emulsifier, diluent and suspending agent, salt acid for adjusting pH value, prepare soap lye, by said method
The SBS modified pitch and the soap lye that obtain prepare ultra-thin wearing layer modified emulsifying asphalt, character in 2:1 ratio by emulsifying device
It is shown in Table 1.
Embodiment 2
With the low-sulfur cycloalkyl line that subtracts three as diluent.Experiment weighs 480g Colophonium, 21g modifying agent, 6g stabilizer, 40g cation
Emulsifying agent, 24g diluent, 39g suspending agent, 30g hydrochloric acid, 360g water.Matrix pitch is heated to 180 DEG C, by modifying agent and addition
In matrix pitch, use high-speed shearing machine to shear dispersion after stirring, add stabilizer, after growth, prepare emulsifying SBS
Modified pitch, by soluble in water to cationic emulsifier, diluent and suspending agent, salt acid for adjusting pH value, prepare soap lye, by above-mentioned side
SBS modified pitch and soap lye that method obtains prepare ultra-thin wearing layer modified emulsifying asphalt, property in 2:1 ratio by emulsifying device
Matter is shown in Table 1.
The composition of following comparative example modified emulsifying asphalt, preparation method and test data are all from Chinese patent
The embodiment of CN105482477 A, only compares and is used.
Comparative example 1
A kind of super viscous composite modified emulsification asphalt, by weight percentage, including following components: matrix pitch 52%, SBS modifier
2%, thinner 1%, cationic emulsifier BE-2 1%, hydrochloric acid 0.5%, water 42%, SBR modifying agent 1.5%, character is shown in Table 1.
Comparative example 2
A kind of super viscous composite modified emulsification asphalt, by weight percentage, including following components: matrix pitch 53%, SBS modifier
1.5%, thinner 1%, cationic emulsifier MQK-1M 1%, hydrochloric acid 0.5%, water 41%, SBR modifying agent 2%, character is shown in Table 1.
Modified emulsifying asphalt character prepared by table 1 embodiment
From table 1, ultra-thin wearing layer modified pitch prepared by the present invention has high evaporated residue content, high softening
Point, low En Gela viscosity, and the storage stability of excellence.
Claims (6)
1. a ultra-thin wearing layer modified emulsifying asphalt, it is characterised in that: the mass percent of its component is: matrix pitch
43.5% ~ 53.8%, modifying agent SBS 1.5% ~ 3.2%, stabilizer 0.25% ~ 1.6%, cationic emulsifier 3% ~ 5%, diluent 2 ~
8%, suspending agent 3 ~ 5%, hydrochloric acid 2% ~ 3%, water 30% ~ 40%；
Its preparation method comprises the steps:
1, matrix pitch is heated；
2, modifying agent is joined in matrix pitch, after stirring, use high-speed shearing machine to shear dispersion；
3, add stabilizer to grow, prepare emulsifying SBS modified pitch, cooling；
4, by soluble in water to emulsifying agent, diluent and suspending agent, soap lye is prepared with salt acid for adjusting pH value；
5, the modified pitch and the soap lye that step 3 are obtained prepare ultra-thin wearing layer modified milk in 2:1 ratio by emulsifying device
Change Colophonium.
A kind of ultra-thin wearing layer modified emulsifying asphalt the most according to claim 1, it is characterised in that: suitably quality hundred
Proportion by subtraction is: matrix pitch 48% ~ 52%, modifying agent SBS 1.9% ~ 2.1%, stabilizer 0. 5% ~ 0.6%, cationic emulsifier 4% ~
4.2%, diluent 2.4% ~ 3.4%, suspending agent 3.9% ~ 4.5%, hydrochloric acid 2.5% ~ 3.0%, water 35% ~ 36%.
A kind of ultra-thin wearing layer modified emulsifying asphalt the most according to claim 1, it is characterised in that: described substrate drip
Blue or green needle penetration is 60 dmm ~ 80 dmm, and described modifying agent is styrene butadiene styrene block copolymer (SBS), average mark
Son amount is 11 ~ 150,000, and the block of styrene and butadiene ratio is for 3:7, and described stabilizer is inorganic sulfur, organosulfur compound.
A kind of ultra-thin wearing layer modified emulsifying asphalt the most according to claim 1, it is characterised in that: described diluent
For one or both the mixture in low-sulfur cycloalkyl second line of distillation, the low-sulfur cycloalkyl line that subtracts three.
A kind of ultra-thin wearing layer modified emulsifying asphalt the most according to claim 1, it is characterised in that: described suspending agent
For Al2(SO4)3。
The preparation method of a kind of ultra-thin wearing layer modified emulsifying asphalt the most according to claim 1, it is characterised in that: described
Modified emulsifying order be first modified emulsifying, matrix pitch is heated to 175 ~ 185 DEG C, addition modifying agent, stir, shear,
Add stabilizer stirring and grow prepared emulsifying SBS modified pitch, be cooled to 125 ~ 135 DEG C；Emulsifying agent, diluent and suspension
Agent prepared soap lye soluble in water, temperature controls, at 55 ~ 65 DEG C, finally to prepare ultra-thin wearing layer in 2:1 ratio by emulsifying device
Use modified emulsifying asphalt.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883623A (en) * | 2017-03-28 | 2017-06-23 | 长安大学 | Priming oil for cement stabilized macadam base and preparation method thereof |
| CN107353560A (en) * | 2017-07-06 | 2017-11-17 | 南京东威万合新材料科技有限公司 | A kind of preparation method of high-performance rhamnolipid emulsified asphalt |
| CN111825855A (en) * | 2020-07-31 | 2020-10-27 | 上海缤德新材料科技有限公司 | High-viscosity emulsified asphalt for cold mixing and cold paving and preparation method thereof |
| CN114806201A (en) * | 2022-06-09 | 2022-07-29 | 天津康泽威科技有限公司 | Green high-performance composite SBS (styrene butadiene styrene) modified asphalt, SBS modified emulsified asphalt material and preparation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883623A (en) * | 2017-03-28 | 2017-06-23 | 长安大学 | Priming oil for cement stabilized macadam base and preparation method thereof |
| CN107353560A (en) * | 2017-07-06 | 2017-11-17 | 南京东威万合新材料科技有限公司 | A kind of preparation method of high-performance rhamnolipid emulsified asphalt |
| CN111825855A (en) * | 2020-07-31 | 2020-10-27 | 上海缤德新材料科技有限公司 | High-viscosity emulsified asphalt for cold mixing and cold paving and preparation method thereof |
| CN111825855B (en) * | 2020-07-31 | 2022-09-09 | 上海缤德新材料科技有限公司 | High-viscosity emulsified asphalt for cold mixing and cold paving and preparation method thereof |
| CN114806201A (en) * | 2022-06-09 | 2022-07-29 | 天津康泽威科技有限公司 | Green high-performance composite SBS (styrene butadiene styrene) modified asphalt, SBS modified emulsified asphalt material and preparation method |
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Application publication date: 20161012 |