CN1112409C - Method for producing polymer-modified asphalt - Google Patents
Method for producing polymer-modified asphalt Download PDFInfo
- Publication number
- CN1112409C CN1112409C CN98111060A CN98111060A CN1112409C CN 1112409 C CN1112409 C CN 1112409C CN 98111060 A CN98111060 A CN 98111060A CN 98111060 A CN98111060 A CN 98111060A CN 1112409 C CN1112409 C CN 1112409C
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- Prior art keywords
- manufacture method
- pitch
- polymer modified
- described polymer
- sbs
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- 239000010426 asphalt Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 229920000642 polymer Polymers 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000003607 modifier Substances 0.000 claims abstract description 14
- 230000008961 swelling Effects 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 7
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 18
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 230000003712 anti-aging effect Effects 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 7
- 239000004711 α-olefin Substances 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 239000002480 mineral oil Substances 0.000 claims description 4
- 235000010446 mineral oil Nutrition 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- -1 propionic acid octadecanol ester Chemical class 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 18
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 2
- XPVIQPQOGTVMSU-UHFFFAOYSA-N (4-acetamidophenyl)arsenic Chemical compound CC(=O)NC1=CC=C([As])C=C1 XPVIQPQOGTVMSU-UHFFFAOYSA-N 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 229920013640 amorphous poly alpha olefin Polymers 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Substances CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
Images
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- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
A process for preparing polymer modified asphalt includes such steps as heating asphalt to dewater, adding chloride, adding polymer modifier, swelling while stirring, and mixing in high-speed shearing homogenizing mill with oil bath for heat preservation. The polymer modifier can be SBS or EVA, a compound of SBS and EVA, or a compound of SBS and APAO. The invention has reasonable process and proportioning design, and the polymer modifier is highly refined by homogenizing and grinding and is uniformly dispersed in the asphalt base material, thereby effectively improving the service performance and prolonging the service life of the asphalt pavement material.
Description
The present invention is the manufacture method of polymer modified asphalt, belongs to technical field of road engineering materials.Be applicable to high grade highway pavement, airfield runway, the laying of bridge floor and build.
Bituminous material has obtained using more widely in road engineering, but because pitch to the susceptibility of temperature, makes it when high temperature because of intensity and rigidity reduce, the easily softening and generation rut in road surface, gathers around phenomenons such as bag, bellding; And relatively poor because of crack resistance when low temperature, the road surface easily produces fatigue cracking, shrinkage cracking, and reflective crack causes the road surface sharply to be damaged, and has influenced the weather resistance of bituminous pavement.Especially along with expanding economy, development of technology, traffic flow increases day by day, the vehicles also tend to high speed, heavy loading, Modern Traffic be security, economy, the comfortableness of advanced road especially, has proposed requirements at the higher level in the use properties of road pavement material and work-ing life.
The purpose of this invention is to provide and a kind ofly can effectively improve bituminous adhesivity and resistance of aging, thereby improve the use properties of ground surface material and the novel pitch manufacture method in work-ing life.
The present invention is the manufacture method of polymer modified asphalt, it is characterized in that earlier the pitch thermal dehydration, adding the polymer modification solvent swell stirs, input has and carries out fully misciblely in the high speed shear homogenizing mill of oil bath insulation then, makes polymer modifiers through the height refinement of homogenizing mill and be evenly dispersed in the pitch matrix.
Described polymer modifiers can be thermoplastic elastic body styrene-butadiene-styrene (SBS) or ethene-vinyl acetate (EVA), the complex body of SBS and EVA, the complex body of SBS and random alpha-olefin (APAO).The add-on of described polymer modifiers in pitch is the 3-30% of pitch weight.The temperature that described swelling stirs, homogenizing is ground in the miscible operation is 120-210 ℃.
The thermo-stabilizer that in the swelling agitating procedure, also can add pitch weight 3-20%, to guarantee that polymkeric substance and pitch in the mixed stability of high temperature, prevent segregation phenomenon, this thermo-stabilizer can be mineral oil and resin; The antiaging agent that in the swelling agitating procedure, also can add pitch weight 0.5-3%, to improve the resistance of aging of modifying asphalt, this antiaging agent can be B-propionic acid octadecanol ester; Behind the pitch thermal dehydration, also can add muriate earlier, make it with pitch in paraffin reaction form the high strength molecular chain, to alleviate the disadvantageous effect of paraffin to the pitch use properties.
The present invention carries out appropriate design according to the design requirements of existing road engineering to technology and proportioning, make polymer modifiers through the refinement of homogenizing mill height and be dispersed in the asphalt base-material, make polymer modifiers and pitch separately the inherent excellent properties in polymer modified asphalt organically in conjunction with and demonstrate fully, can improve the high temperature viscosity of modifying asphalt effectively, low-temperature ductility and elasticity, improve anti-aging and adhesivity, strengthen ability of anti-deformation and crack resistance, and thermo-stabilizer, antiaging agent and muriatic admixture have then further improved the use properties and the work-ing life of ground surface material.Polymer modified asphalt of the present invention is suitable for high grade highway pavement, airfield runway, and the laying of bridge floor etc. and build can be satisfied the requirement of security in the road engineering, economy, comfortableness.
Accompanying drawing has provided process flow sheet of the present invention.
Below in conjunction with embodiment the present invention is further described:
1. raw material is selected for use:
Matrix material-pitch:, select the place of production and label by the road surface job requirement.
Material modified-polymer modifiers, by road surface job requirement difference, can select materials such as SBS or EVA separately for use, also can be by SBS and EVA or SBS and the compound material of forming of APAO.
Above-mentioned material modified can be virgin material or waste and old material, but waste and old material must pass through clean, and is cut into and is easy to molten mixed granular or sheet.
Thermo-stabilizer: select materials such as mineral oil and resin compound for use.
Antiaging agent: select β-materials such as propionic acid octadecanol ester for use.
Muriate: select materials such as zinc chloride for use.
2. proportioning: press two kinds of preparation methods of bituminous concrete and master batch of bitumen, select rational proportion.
A. directly be used for preparing the polymer modified asphalt of bituminous concrete, its polymer content can generally be selected in the scope of 3-10% according to road surface job requirement difference;
B. for convenient transportation, can be made into the polymer modified asphalt masterbatch of polymer content at 10-30%, at the construction field (site) more in proportion heating and melting pitch dilute stirring, be used for preparing bituminous concrete then.
3. technology:
Behind the pitch thermal dehydration, add zinc chloride earlier, adding quantitative polymer modifiers again stirs, disperse, swelling, add 5% thermo-stabilizer (mineral oil adds resin) and 1% antiaging agent (β-propionic acid octadecanol ester) then, input has to be done further to disperse miscible in the high speed shear homogenizing mill of oily molten insulation, polymkeric substance is evenly distributed in the pitch matrix with emblem meter level fineness.
If selecting SBS for use is properties-correcting agent, swelling and the miscible optimum temps of homogenizing mill are 170-190 ℃;
If selecting EVA for use is properties-correcting agent, swelling and the miscible optimum temps of homogenizing mill are 160-170 ℃
If select the composite modifier of SBS and EVA or SBS and APAO for use, swelling and the miscible optimum temps of homogenizing mill are 170-180 ℃.
The embodiment of the invention is used through practice of construction, has demonstrated its excellent use properties, is example with SBS modifying asphalt and EVA modifying asphalt, and the main performance index contrast is as follows:
1.SBS modifying asphalt (the SBS add-on is 4.7%)
| Penetration degree | Softening degree | The low temperature brittle point | |
| Protobitumen | 72 | 45 | -4℃ |
| The SBS modification | 50 | 67 | -18℃ |
2.EVA modifying asphalt (the EVA add-on is 5%)
| Penetration degree | Softening degree | The low temperature brittle point | |
| Protobitumen | 64 | 48 | -6℃ |
| The EVA modification | 49 | 60 | -14℃ |
Claims (9)
1. the manufacture method of a polymer modified asphalt, it is characterized in that earlier the pitch thermal dehydration, adding the polymer modification solvent swell stirs, input has and carries out fully misciblely in the high speed shear homogenizing mill of oil bath insulation then, makes polymer modifiers through the height refinement of homogenizing mill and be evenly dispersed in the pitch matrix.
2. press the manufacture method of the described polymer modified asphalt of claim 1, it is characterized in that described polymer modifiers is thermoplastic elastic body styrene-butadiene-styrene (SBS) or ethene-vinyl acetate (EVA), the complex body of SBS and EVA, the complex body of SBS and random alpha-olefin (APAO).
3. by the manufacture method of claim 1 or 2 described polymer modified asphalts, it is characterized in that the add-on of described polymer modifiers in pitch is the 3-30% of pitch weight.
4. by the manufacture method of claim 1 or 2 described polymer modified asphalts, it is characterized in that the temperature that swelling stirs, homogenizing is ground in the miscible operation is 120-210 ℃.
5. by the manufacture method of the described polymer modified asphalt of claim 1, it is characterized in that also adding in the described swelling agitating procedure thermo-stabilizer of pitch weight 3-20%.
6. by the manufacture method of the described polymer modified asphalt of claim 1, it is characterized in that also adding in the described swelling agitating procedure antiaging agent of pitch weight 0.5-3%.
7. by the manufacture method of the described polymer modified asphalt of claim 1, it is characterized in that adding muriate earlier behind the pitch thermal dehydration.
8. by the manufacture method of claim 1 or 5 described polymer modified asphalts, it is characterized in that described thermo-stabilizer is mineral oil and resin.
9. by the manufacture method of claim 1 or 6 described polymer modified asphalts, it is characterized in that described antiaging agent is a β propionic acid octadecanol ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111060A CN1112409C (en) | 1998-09-07 | 1998-09-07 | Method for producing polymer-modified asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111060A CN1112409C (en) | 1998-09-07 | 1998-09-07 | Method for producing polymer-modified asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1212266A CN1212266A (en) | 1999-03-31 |
| CN1112409C true CN1112409C (en) | 2003-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98111060A Expired - Fee Related CN1112409C (en) | 1998-09-07 | 1998-09-07 | Method for producing polymer-modified asphalt |
Country Status (1)
| Country | Link |
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| CN (1) | CN1112409C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120888B (en) * | 2011-01-26 | 2013-07-31 | 蔡海军 | Environmental-protection high-power liquid material for room-temperature asphalt surface course and preparation method thereof |
| CN104059369A (en) * | 2014-07-01 | 2014-09-24 | 无锡市鑫路道路材料有限公司 | Composite polymer modified asphalt and preparing method of composite polymer modified asphalt |
| CN104448851A (en) * | 2014-11-23 | 2015-03-25 | 黎裕发 | Method for preparing modified asphalt added with polyethylene |
| CN104962091A (en) * | 2015-07-07 | 2015-10-07 | 绍兴兰亭沥青技术有限公司 | Polymer modified asphalt and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891272A (en) * | 1988-04-07 | 1990-01-02 | Ausimont S.R.L. | Waterproofing membranes based on bitumen |
| CN1048867A (en) * | 1990-07-19 | 1991-01-30 | 同济大学 | Manufacturing method of composite modified asphalt |
| CN1051048A (en) * | 1989-10-16 | 1991-05-01 | 国际壳牌研究有限公司 | The method for preparing bituminous composition |
| CN1074458A (en) * | 1991-12-23 | 1993-07-21 | Ecp埃尼化学有限公司 | With the pitch of that reclaim and/or new polymer modification and their application |
-
1998
- 1998-09-07 CN CN98111060A patent/CN1112409C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891272A (en) * | 1988-04-07 | 1990-01-02 | Ausimont S.R.L. | Waterproofing membranes based on bitumen |
| CN1051048A (en) * | 1989-10-16 | 1991-05-01 | 国际壳牌研究有限公司 | The method for preparing bituminous composition |
| CN1048867A (en) * | 1990-07-19 | 1991-01-30 | 同济大学 | Manufacturing method of composite modified asphalt |
| CN1074458A (en) * | 1991-12-23 | 1993-07-21 | Ecp埃尼化学有限公司 | With the pitch of that reclaim and/or new polymer modification and their application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1212266A (en) | 1999-03-31 |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: SHAOXING ZHONGJIANG INVESTMENT MANAGEMENT LIMITED Free format text: FORMER OWNER: YANG LINJIANG Effective date: 20080606 |
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Effective date of registration: 20080606 Address after: Lanting Pavilion Industrial Zone, Shaoxing County, Zhejiang Patentee after: Shaoxing County Zhongjiang Cci Capital Ltd Address before: Lanting Pavilion Town, Shaoxing County, Zhejiang Province, Lanting Pavilion Patentee before: Yang Linjiang |
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| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG LANTING HI-TECH. CO., LTD. Free format text: FORMER OWNER: SHAOXING ZHONGJIANG INVESTMENT MANAGEMENT LIMITED Effective date: 20091002 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20091002 Address after: Industrial Zone, Lanting Pavilion Town, Shaoxing County, Zhejiang Patentee after: Zhejiang Lanting Hi-Tech. Co., Ltd. Address before: Lanting Pavilion Industrial Zone, Shaoxing County, Zhejiang Patentee before: Shaoxing County Zhongjiang Cci Capital Ltd |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejing Lanting Hi-tech Co., Ltd. Assignor: Zhejiang Lanting Hi-Tech. Co., Ltd. Contract record no.: 2010330000856 Denomination of invention: Manufacturing method of polymer modified asphalt Granted publication date: 20030625 License type: Exclusive License Open date: 19990331 Record date: 20100513 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030625 Termination date: 20100907 |