CN105733283B - A kind of SBS modified asphalt stabilizer - Google Patents
A kind of SBS modified asphalt stabilizer Download PDFInfo
- Publication number
- CN105733283B CN105733283B CN201610214874.6A CN201610214874A CN105733283B CN 105733283 B CN105733283 B CN 105733283B CN 201610214874 A CN201610214874 A CN 201610214874A CN 105733283 B CN105733283 B CN 105733283B
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- CN
- China
- Prior art keywords
- sbs
- modified asphalt
- parts
- sbs modified
- stabilizer
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- 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
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of SBS modified asphalt stabilizer, each component including following parts by weight: 20~30 parts of vulcanization accelerator TMTD, 1,801 10~15 parts of stearic acid, 10~20 parts of antioxidant 2246,20~30 parts of sulphur, 10~15 parts of heat stabilizer, 10~15 parts of light stabilizer.It is mixed to SBS with pitch, after being ground under the action of shearing colloid mill, the SBS modified asphalt stabilizer is added, is stirred 1.5~2 hours at 175 DEG C~185 DEG C.SBS modified asphalt stabilizer of the invention, can promote SBS compatible with matrix pitch, reduce the addition usage amount of SBS；The hot storage stability that can be improved SBS modified pitch prevents the generation of isolation；The content of fragrance point can be increased, improve the phase capacity rate of matrix pitch and SBS.
Description
Technical field
The present invention relates to a kind of modified asphalt additive, specially a kind of SBS modified asphalt stabilizer.
Background technique
With the fast development of the development of highway in China communication, especially high-grade highway, the quantity of bituminous pavement
It is increasing, grade is continuously improved.It is generally all auxiliary using SBS modified pitch from the point of view of the service condition of domestic and international highway
It builds the road face, SBS (this ethylene-butadiene-styrene block copolymer) is a kind of high molecular polymer, it had both had the bullet of rubber
Property, and the thermoplastic properties with resin, SBS and pitch inlay mixed phase under the action of high-speed shearing colloid mill, through physics
Mutually infiltration absorption can be blended in pitch with micron-sized even particle size, just become a kind of modified pitch.
Since SBS and pitch are a kind of physical reactions processes, generally practical upper modified pitch finished pot is all had at the scene
Agitating device is uniformly mixed together SBS minitype particle with pitch, however in many cases, SBS modified pitch
Storage and transport do not have agitating device, this just needs to solve the problems, such as modified pitch stability.It is external from the current country
Diversified in specifications from the point of view of the asphalt stabilizer of production, quality is also irregular, has liquid, has granular, has powdered etc.
Deng.Come from the effect of stability, currently on the market more is powdered stabilizer, generally reflect stablizing effect compared with
Obviously.These stabilizers play certain stabilization to pitch, but are not much affected to the other indexs of modified pitch, this is just
Virtually cost is increased to user.
Summary of the invention
The technical problem to be solved by the present invention is to overcome effect of the existing asphalt stabilizer to SBS modified pitch is unknown
Aobvious, the biggish defect of additive amount provides a kind of SBS modified asphalt stabilizer.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of SBS modified asphalt stabilizer, each component including following parts by weight:
Further, the SBS modified asphalt stabilizer, each component including following parts by weight:
Further, fusing point >=140 DEG C of the SBS modified asphalt stabilizer；The grain of the SBS modified asphalt stabilizer
Diameter is 0.1~0.5mm.
The application method of the SBS modified asphalt stabilizer, comprising the following steps:
1) SBS is mixed with pitch, is ground under the action of shearing colloid mill；
2) SBS modified asphalt stabilizer, is added, is stirred 1.5~2 hours at 175 DEG C~185 DEG C；Preferred SBS is modified
The additive amount of asphalt stabilizer is the 0.2%~0.40% of SBS and asphalt quality.
Compared with prior art, the present invention has technical effect below:
One, SBS modified asphalt stabilizer of the invention, can promote SBS compatible with matrix pitch, reduce the addition of SBS
Usage amount.SBS modified asphalt stabilizer can make to be formed one layer between the polymer phase and matrix pitch phase in modified pitch surely
Fixed Phase boundary surface adsorption layer reduces the surface tension of phase interface, increases the affinity between two-phase；To promote between two-phase
It is compatible.Experiment sampling is observed on fluorescence microscope: the image of polymer beads has been can't see in discovery, and ties after index test
Fruit shows: the indexs such as its softening point, needle penetration are greatly improved.It proves to change in addition use after a large amount of experiment and application
After property asphalt stabilizer, the volume 20%~30% of SBS can be saved, and guarantee the quality of modified pitch.
Two, SBS modified asphalt stabilizer of the invention, can be improved the hot storage stability of SBS modified pitch, prevent from
The generation of analysis.Since matrix pitch contains more polar compound, SBS then belongs to non-polar compound, and the viscosity of SBS
Greatly, easily it is gathered in pitch top；And pitch generates segregation phenomenon and isolates then on the contrary, be easily sunken to lower part.This unstability
Thermmal storage and long-distance transport to large-scale production SBS modified pitch be it is unfavorable, it is even futile, especially transporting for long-distance
Sell more difficult solution.After adding modified asphalt stabilizer: BS modified asphalt stabilizer can reduce matrix pitch with
Interface energy between SBS, also promotes the dispersion of SBS phase, and prevent the cohesion of SBS, enhances alternate bonding.By from
Analysis experiment and practical application, the generation of no segregation phenomenon.
Three, SBS modified asphalt stabilizer of the invention can increase the content of fragrance point, improve matrix pitch and SBS
Phase capacity rate.Since addition modified asphalt stabilizer can increase the content of fragrance point, to keep SBS preferably compatible in matrix
In pitch.For both at home and abroad some be not easy modified pitch also and can be produced by adding compatible stabilizer normal process, have
Conducive to the purchasing of raw materials and use of modified pitch manufacturing enterprise.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of SBS modified asphalt stabilizer, each component including following parts by weight:
Yueyang 791SBS is mixed with SK70# matrix pitch, after grinding under the action of shearing colloid mill, is added 0.40%
The present embodiment SBS modified asphalt stabilizer, stirred 2 hours at 175 DEG C；The results are shown in Table 1
The using effect of 1 embodiment 1 of table
Embodiment 2
A kind of SBS modified asphalt stabilizer, each component including following parts by weight:
Yueyang 791SBS is mixed with SK70# matrix pitch, after grinding under the action of shearing colloid mill, is added 0.2%
The present embodiment SBS modified asphalt stabilizer, stirred 1.5 hours at 185 DEG C；The results are shown in Table 2
The using effect of 2 embodiment 2 of table
Embodiment 3
A kind of SBS modified asphalt stabilizer, each component including following parts by weight:
Yueyang 791SBS is mixed with SK70# matrix pitch, after grinding under the action of shearing colloid mill, is added 0.3%,
The SBS modified asphalt stabilizer of the present embodiment stirs 1.8 hours at 180 DEG C；The results are shown in Table 3
The using effect of 3 embodiment 3 of table
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (3)
1. a kind of application method of SBS modified asphalt stabilizer, which is characterized in that the SBS modified asphalt stabilizer is by following
The component of parts by weight forms:
Fusing point >=140 DEG C of the SBS modified asphalt stabilizer；
The partial size of the SBS modified asphalt stabilizer is 0.1~0.5mm；
The application method only the following steps are included:
1) SBS is mixed with pitch, is ground under the action of shearing colloid mill；
2) SBS modified asphalt stabilizer, is added, is stirred 1.5~2 hours at 175 DEG C~185 DEG C.
2. application method as described in claim 1, which is characterized in that the SBS modified asphalt stabilizer is by following parts by weight
Several component compositions:
3. application method as described in claim 1, which is characterized in that SBS modified asphalt stabilizer adds in the step 2)
Dosage is the 0.2%~0.40% of SBS and asphalt quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214874.6A CN105733283B (en) | 2016-04-07 | 2016-04-07 | A kind of SBS modified asphalt stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214874.6A CN105733283B (en) | 2016-04-07 | 2016-04-07 | A kind of SBS modified asphalt stabilizer |
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| Publication Number | Publication Date |
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| CN105733283A CN105733283A (en) | 2016-07-06 |
| CN105733283B true CN105733283B (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610214874.6A Expired - Fee Related CN105733283B (en) | 2016-04-07 | 2016-04-07 | A kind of SBS modified asphalt stabilizer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107541231B (en) * | 2017-09-29 | 2019-09-17 | 江西兴路公路材料有限公司 | A kind of low wax pitch and preparation method thereof |
| CN108129859A (en) * | 2017-12-22 | 2018-06-08 | 重庆鑫路捷科技股份有限公司 | Improve the accelerating agent and its mix asphalt of SBS modifier and matrix pitch phase capacity rate |
| CN111286206A (en) * | 2020-02-01 | 2020-06-16 | 湖北楚天卓越工程技术有限公司 | Cementing material for road color asphalt concrete and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232617B (en) * | 2013-05-03 | 2015-02-18 | 中国海洋石油总公司 | Stabilizer composition for styrene-butadiene-styrene (SBS) modified asphalt |
| CN104403337A (en) * | 2014-12-19 | 2015-03-11 | 山东大山路桥工程有限公司 | Modified asphalt performance accelerating agent |
| CN104927373A (en) * | 2015-06-30 | 2015-09-23 | 青岛麦科三维高新技术有限公司 | SBS (styrene butadiene styrene) modified asphalt stabilizing agent |
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