CN105482471A - Polyvinyl chloride modified base asphalt - Google Patents
Polyvinyl chloride modified base asphalt Download PDFInfo
- Publication number
- CN105482471A CN105482471A CN201510986990.5A CN201510986990A CN105482471A CN 105482471 A CN105482471 A CN 105482471A CN 201510986990 A CN201510986990 A CN 201510986990A CN 105482471 A CN105482471 A CN 105482471A
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- CN
- China
- Prior art keywords
- pitch
- matrix pitch
- stirred pot
- pvc modified
- modified matrix
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention relates to polyvinyl chloride modified base asphalt and a processing method of the polyvinyl chloride modified base asphalt. The method comprises the following steps of pouring base asphalt into a heating tank, sufficiently heating, pouring the heated base asphalt into a stirring tank, adding sulfur, starting a stirrer, adding a polystyrene modifier, repeatedly grinding, stirring and mixing by utilization of the stirring tank, pouring the grinded asphalt into a storage tank for later development for a period of time. The processing method has the advantages of simplicity, easiness in large-scale production and wide application prospects.
Description
Technical field
The present invention relates to a kind of modified substrate pitch, particularly a kind of matrix pitch and working method thereof of adding polyvinylchloride modifier, belongs to pitch manufacture field.
Background technology
The chocolate complex mixture that pitch is made up of hydrocarbon polymer and the nonmetal derivative thereof of different molecular weight, it is the one of high viscosity organic liquid, bitumen for road use material surfacing is mixed in mineral material, greatly can improve the ability of paving the way with pellet opposing driving and the infringement of natural cause road pavement, making evenness of road surface lack dirt, durable in use.Along with the high speed development of highway in China, Chinese Highway total kilometrage occupies the second in the world, quite a few road surface of China adopts asphalt paving, " 12 " period, road bitumen consumption is every year on average at about 1,500 ten thousand tons, and the development for China's modifying asphalt industry is accumulate and educated huge market demand and powerful growth reserve strength.Pitch is a lot of as pavior advantage, and one is wheel and road surface two-stage vibration damping, and therefore road-ability is good, noise is little; Two is flexible pavement strong adaptabilities to roadbed, foundation deformation or non-uniform settling; Three is that speed is repaired soon in road surface, can be open to traffic after rolling.But due to bituminous pavement long-term exposure in atmosphere, under being subject to the effect of extraneous natural cause (light, heat, water), producing lightweight oil content in pitch and tail off, outward appearance is hardening, become fragile, affect the performance of road.
Have higher requirement to Road construction now, use traditional asphalt road surface pavement will be difficult to meet the demands, must improve the over-all properties of pitch, a feasible method is exactly the characteristic of change traditional asphalt.The present invention is added on the basis of sulphur by matrix pitch, then adds Polystyrene agent, improves the over-all properties such as water-fast, ageing-resistant of pitch.
Summary of the invention
The object of this invention is to provide a kind of PVC modified matrix pitch and working method thereof, this working method is carried out as follows:
(1) first matrix pitch is squeezed in intensification tank from de-bucket device, heat temperature raising;
(2), after heating, matrix pitch can continuous bubbling, when see stopping emerge bubble time, stop heating, and pitch poured in a stirred pot;
(3) in stirred pot, add a certain amount of sulfur modifier again;
(4) start agitator, make agitator work, then add appropriate polyvinylchloride modifier, and stirring is carried out swelling;
Swelling fully after, after the pitch in stirred pot is ground by colloidal mill, then squeeze in another stirred pot, all ground shutdown;
(6) again pitch honed in this stirred pot is ground one time by colloidal mill to be driven in last stirred pot, so repeatedly grind several times altogether;
(7) the pitch of milled is poured in storage bucket, continue to grow for some time.
As preferred embodiments of the present invention, step (1) in, Heating temperature is 150-180 DEG C.
As preferred embodiments of the present invention, step (3) in, the addition of sulphur accounts for the 5-10% of matrix pitch weight.
As preferred embodiments of the present invention, step (4) in, mixing control rotating speed is within 400r/min.
As preferred embodiments of the present invention, step (4) in, polyvinylchloride modifier accounts for the 3-4% of matrix pitch weight.
As preferred embodiments of the present invention, step (6) in, repeatedly grind 3-5 all over.
As preferred embodiments of the present invention, step (7) in, the later stage grows needs 1-2 hour.
The present invention has following advantages and characteristic:
(1) preparation technology is simple, and cost is low;
(2) flow time is short, easy scale operation.
Embodiment
Embodiment one:
First 10kg matrix pitch is squeezed in asphalt heating tank from de-bucket device, heat temperature raising, asphalt temperature is made to be raised to 150 DEG C, matrix pitch is through the continuous bubbling of heating meeting, when see stopping emerge bubble time, stop heating, and pitch is poured in a stirred pot, the sulphur of 0.5kg is added again in stirred pot, start agitator, make agitator work, mixing control rotating speed is at 300r/min, add the polyvinylchloride modifier of 0.2kg, carry out swelling, swelling fully after the asphalt in stirred pot ground by colloidal mill be driven into for one time in another stirred pot, the complete shutdown of whole mill, again pitch honed in this stirred pot is ground by colloidal mill and be driven into for one time in last stirred pot, so repeatedly grind 3 times altogether, finally the pitch of milled is poured in storage bucket, continue growth 1 hour a kind of PVC modified matrix pitch.
Embodiment two:
First 20kg matrix pitch is squeezed in asphalt heating tank from de-bucket device, heat temperature raising, asphalt temperature is made to be raised to 170 DEG C, matrix pitch is through the continuous bubbling of heating meeting, when see stopping emerge bubble time, stop heating, and pitch is poured in a stirred pot, the sulphur of 1.5kg is added again in stirred pot, start agitator, make agitator work, mixing control rotating speed is at 350r/min, add the polyvinylchloride modifier of 0.6kg, carry out swelling, swelling fully after the asphalt in stirred pot ground by colloidal mill be driven into for one time in another stirred pot, the complete shutdown of whole mill, again pitch honed in this stirred pot is ground by colloidal mill and be driven into for one time in last stirred pot, so repeatedly grind 4 times altogether, finally the pitch of milled is poured in storage bucket, continue growth 1.5 hours a kind of PVC modified matrix pitch.
Embodiment three:
First 50kg matrix pitch is squeezed in asphalt heating tank from de-bucket device, heat temperature raising, asphalt temperature is made to be raised to 180 DEG C, matrix pitch is through the continuous bubbling of heating meeting, when see stopping emerge bubble time, stop heating, and pitch is poured in a stirred pot, the sulphur of 5kg is added again in stirred pot, start agitator, make agitator work, mixing control rotating speed is at 400r/min, add the polyvinylchloride modifier of 2kg, carry out swelling, swelling fully after the asphalt in stirred pot ground by colloidal mill be driven into for one time in another stirred pot, the complete shutdown of whole mill, again pitch honed in this stirred pot is ground by colloidal mill and be driven into for one time in last stirred pot, so repeatedly grind 5 times altogether, finally the pitch of milled is poured in storage bucket, continue the PVC modified matrix pitch of the growth one of 2 hours.
Claims (7)
1. a PVC modified matrix pitch, is characterized in that, the working method of this matrix pitch comprises the steps:
(1) first matrix pitch is squeezed in intensification tank from de-bucket device, heat temperature raising;
(2), after heating, matrix pitch can continuous bubbling, when see stopping emerge bubble time, stop heating, and pitch poured in a stirred pot;
(3) in stirred pot, add a certain amount of sulfur modifier again;
(4) start agitator, make agitator work, then add appropriate polyvinylchloride modifier, and stirring is carried out swelling;
Swelling fully after, after the pitch in stirred pot is ground by colloidal mill, then squeeze in another stirred pot, all ground shutdown;
(6) again pitch honed in this stirred pot is ground one time by colloidal mill to be driven in last stirred pot, so repeatedly grind several times altogether;
(7) the pitch of milled is poured in storage bucket, continue to grow for some time.
2. the PVC modified matrix pitch of one according to claim 1, is characterized in that, step (1) in, Heating temperature is 150-180 DEG C.
3. the PVC modified matrix pitch of one according to claim 1, is characterized in that, step (3) in, the addition of sulphur accounts for the 5-10% of matrix pitch weight.
4. the PVC modified matrix pitch of one according to claim 1, is characterized in that, step (4) in, mixing control rotating speed is within 400r/min.
5. the PVC modified matrix pitch of one according to claim 1, is characterized in that, step (4) in, polyvinylchloride modifier accounts for the 3-4% of matrix pitch weight.
6. the PVC modified matrix pitch of one according to claim 1, is characterized in that, step (6) in, repeatedly grind 3-5 all over.
7. the PVC modified matrix pitch of one according to claim 1, is characterized in that, step (7) in, the later stage grows needs 1-2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986990.5A CN105482471A (en) | 2015-12-26 | 2015-12-26 | Polyvinyl chloride modified base asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986990.5A CN105482471A (en) | 2015-12-26 | 2015-12-26 | Polyvinyl chloride modified base asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105482471A true CN105482471A (en) | 2016-04-13 |
Family
ID=55669758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510986990.5A Pending CN105482471A (en) | 2015-12-26 | 2015-12-26 | Polyvinyl chloride modified base asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105482471A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1396235A (en) * | 2002-06-13 | 2003-02-12 | 邓志福 | Process for preparing modified refractory asphalt for road |
| CN101531817A (en) * | 2009-04-01 | 2009-09-16 | 西北师范大学 | Polymer modified asphalt and preparation method thereof |
| CN101717586A (en) * | 2009-11-27 | 2010-06-02 | 长安大学 | Concentrated composition of waste rubber composite modified pitch and preparation and use method |
| CN101974236A (en) * | 2010-11-04 | 2011-02-16 | 爱思开(北京)公路科技有限公司 | Cast asphalt composition and preparation method thereof |
| CN103740119A (en) * | 2014-01-03 | 2014-04-23 | 爱思开沥青（上海）有限公司 | Pre-prepared warm mix modified asphalt and preparation method thereof |
-
2015
- 2015-12-26 CN CN201510986990.5A patent/CN105482471A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1396235A (en) * | 2002-06-13 | 2003-02-12 | 邓志福 | Process for preparing modified refractory asphalt for road |
| CN101531817A (en) * | 2009-04-01 | 2009-09-16 | 西北师范大学 | Polymer modified asphalt and preparation method thereof |
| CN101717586A (en) * | 2009-11-27 | 2010-06-02 | 长安大学 | Concentrated composition of waste rubber composite modified pitch and preparation and use method |
| CN101974236A (en) * | 2010-11-04 | 2011-02-16 | 爱思开(北京)公路科技有限公司 | Cast asphalt composition and preparation method thereof |
| CN103740119A (en) * | 2014-01-03 | 2014-04-23 | 爱思开沥青（上海）有限公司 | Pre-prepared warm mix modified asphalt and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160413 |
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| WD01 | Invention patent application deemed withdrawn after publication |