CN1171953C - Process for preparing polymer modified asphalt - Google Patents
Process for preparing polymer modified asphalt Download PDFInfo
- Publication number
- CN1171953C CN1171953C CNB01133679XA CN01133679A CN1171953C CN 1171953 C CN1171953 C CN 1171953C CN B01133679X A CNB01133679X A CN B01133679XA CN 01133679 A CN01133679 A CN 01133679A CN 1171953 C CN1171953 C CN 1171953C
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- Prior art keywords
- asphalt
- polymer
- production technique
- styrene
- mixture
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- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The present invention relates to technology for producing polymer modified asphalt. The present invention has the steps that: (1) the temperature of 100 portions of asphalt is raised to 140 to 210 DEG C; (2) 2 to 20 portions of modifiers are added in the asphalt in the step (1), and are stirred to circulate; (3) 0.1 to 2 portions of stabilizers are added in the mixture in the step (2); (4) the mixture is finely ground into finished products. The present invention effectively solves the manufacturing technology of the modified asphalt with storage resistance performance. When the polymer is melted in asphalt and is dispersed to certain degree, a stabilizer which is used for causing the polymer and the asphalt and the polymers to generate the cross linking function is added in the polymer, the polymers exist in the asphalt by a relatively stable reticular structure, the polymers are uniformly distributed in the asphalt, and thus, a polymer/ asphalt homogeneous phase body is formed. The polymer/ asphalt homogeneous phase body is favorable to the long-term storage without separation.
Description
Technical field
The present invention relates to the production technique of traffic and production process of building materials, particularly polymer modified asphalt.
Background technology
Polymer modified asphalt is because of its good anti-rut, anti-heavy duty and high temperature performance, and in various countries' widespread use.Polymer modified asphalt generally can not be long time stored, therefore has only the employing situ production, and production efficiency is low, can not bring into play the throughput of equipment, and can only be in construction seasons production.
Summary of the invention
One of technical problem to be solved by this invention is: a kind of production technique of polymer modified asphalt is provided, and its technology is simple, and is easy to control, the modified asphalt technology excellent performance of producing, and thermmal storage is not stratified, and every index is stable, but long storage.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
The production technique of polymer modified asphalt is:
(1) 100 parts of pitches is warming up to 160-190 ℃;
(2) in the described pitch of step (1), add the properties-correcting agent of 1-20 part, and carry out agitation cycle; Properties-correcting agent is styrene-ethylene/butylene-styrene block copolymer (SEBS), or styrene-ethylene/propylene-styrene segmented copolymer (SEPS); Add the expanding material of 0.5-10 part in said mixture, expanding material is petroleum resin;
(3) in the mixture of step (2), add 0.1-2 part stablizer;
(4) levigate finished product in opening homogenizer or colloidal mill.
Properties-correcting agent melts in hard pitch, under the strong shearing action of homogenizer or colloidal mill, the properties-correcting agent refinement disperses, the physical crosslinking structure disappears substantially, under the function of stabilizer that adds, chemically crosslinked takes place between modifier molecules and pitch and the modifier molecules, make between the modifier molecules and modifier molecules and pitch between form the stable and stereoscopic reticulated structure, guaranteed properties-correcting agent uniform and stable distribution and avoid segregation in pitch effectively.
The present invention has solved the production technique of the modifying asphalt of anti-the storage effectively, when polymkeric substance in pitch fusion and be distributed to a certain degree after, adding can make the stablizer that crosslinked action takes place between polymkeric substance and pitch and the polymkeric substance, polymkeric substance is existed with metastable reticulated structure in pitch, to guarantee polymkeric substance uniform distribution in pitch, form polymkeric substance/pitch homogeneous phase body, be beneficial to long storage and do not emanate.
Specific embodiments
The specific embodiment of the production technique of polymer modified asphalt of the present invention is:
(1) with 1000 kilograms of 50-135
#Pitch is warming up to 140-210 ℃, and optimum temperuture is 160-190 ℃.
(2) in (1) described pitch, add 10 kilograms of properties-correcting agent, and carry out agitation cycle.
Properties-correcting agent can be styrene-ethylene/butylene-styrene block copolymer (SEBS), styrene-ethylene/propylene-styrene segmented copolymer (SEPS).
(3) according to the consistency situation of pitch and used properties-correcting agent, can in the mixture of (2), add 5 kilograms expanding material, expanding material can be petroleum resin.
(4) mixture of the pitch/properties-correcting agent described in (2) is stirred in high-temperature tank add 1 kilogram of stablizer after 3 minutes to 24 hours, open homogenizer or colloidal mill simultaneously, properties-correcting agent and asphalt mixture process through homogenizer or colloidal mill the time is sheared and impact effect, refinement disperses rapidly, under function of stabilizer, produces the reversible chemical bond, polymkeric substance and pitch generation grafting, also be cross-linked with each other between the polymkeric substance, form uniform cubic network structure, the modifying asphalt that obtained performance is stable.
Stablizer can be 1, dimethyl disulfide; Or, the combination of 2,50% dimethyl disulfide, 35% sulphur, 15% metal oxide, metal oxide can be one or more the combination in magnesium oxide, calcium oxide, yellow lead oxide, zinc oxide and the tri-lead tetroxide.
(6) mixture in (5) is pumped into corresponding hold-up vessel, after 10 minutes to 4 hours, can pack and thermmal storage, for the usefulness of transportation with concrete.
Claims (5)
1, a kind of production technique of polymer modified asphalt is characterized in that: the steps include:
(1) 100 parts of pitches is warming up to 160-190 ℃;
(2) in the described pitch of step (1), add the properties-correcting agent of 1-20 part, and carry out agitation cycle; Properties-correcting agent is styrene-ethylene/butylene-styrene block copolymer, or styrene-ethylene/propylene-styrene segmented copolymer; Add the expanding material of 0.5-10 part in said mixture, expanding material is petroleum resin;
(3) in the mixture of step (2), add 0.1-2 part stablizer;
(4) levigate finished product in opening homogenizer or colloidal mill.
2, production technique as claimed in claim 1 is characterized in that: the finished product in the step (4) is pumped in the hold-up vessel, and after 10 minutes to 4 hours, packing and thermmal storage are for the usefulness of transportation with concrete.
3, production technique as claimed in claim 1 is characterized in that: stablizer mainly comprises polysulfide.
4, production technique as claimed in claim 3 is characterized in that: stablizer also comprises sulphur and metal oxide, and the weight ratio of its each component is: polysulfide 40-100%, sulphur 0-45%, metal oxide 0-15%.
5, production technique as claimed in claim 4 is characterized in that: metal oxide is one or more the combination in magnesium oxide, calcium oxide, yellow lead oxide, zinc oxide and the tri-lead tetroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01133679XA CN1171953C (en) | 2001-11-16 | 2001-11-16 | Process for preparing polymer modified asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01133679XA CN1171953C (en) | 2001-11-16 | 2001-11-16 | Process for preparing polymer modified asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1353143A CN1353143A (en) | 2002-06-12 |
| CN1171953C true CN1171953C (en) | 2004-10-20 |
Family
ID=4672013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01133679XA Expired - Fee Related CN1171953C (en) | 2001-11-16 | 2001-11-16 | Process for preparing polymer modified asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1171953C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313566C (en) * | 2003-10-24 | 2007-05-02 | 中国石油化工股份有限公司 | Waste rubber powder modified asphalt and its prepn process |
| CN1301299C (en) * | 2003-11-22 | 2007-02-21 | 昆明钢铁股份有限公司 | Road building oil and its production method |
| CN101063000B (en) * | 2006-04-30 | 2010-12-15 | 深圳市海川实业股份有限公司 | Bitumen modifier for traffic tracking resistance and modified bitumen and mixer thereof |
| CN102093728A (en) * | 2010-12-31 | 2011-06-15 | 山西省交通科学研究院 | High-viscosity modified asphalt |
| CN102643555B (en) * | 2012-04-28 | 2013-08-21 | 广西国创道路材料有限公司 | Process for producing styrene-butadiene-styrene block copolymer (SBS) modified asphalt |
| CN105440711A (en) * | 2015-12-26 | 2016-03-30 | 廖鹏程 | Preparation process of anti-ageing matrix asphalt |
| CN105440710A (en) * | 2015-12-26 | 2016-03-30 | 廖鹏程 | High-temperature-resisting road matrix asphalt and processing method thereof |
| CN105647201A (en) * | 2016-01-26 | 2016-06-08 | 中海沥青（四川）有限公司 | Modified asphalt stabilizer and preparation method thereof |
| CN108558271A (en) * | 2018-05-21 | 2018-09-21 | 卢莺莺 | A kind of construction of the highway bituminous concrete and preparation method thereof |
| CN109897393A (en) * | 2019-04-03 | 2019-06-18 | 浙江鑫长胜材料科技有限公司 | A kind of SBS modified pitch and preparation method thereof |
| CN110183863A (en) * | 2019-05-20 | 2019-08-30 | 陈荣钦 | A kind of preparation method of adsorbable degrading tail gas modified pitch |
-
2001
- 2001-11-16 CN CNB01133679XA patent/CN1171953C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1353143A (en) | 2002-06-12 |
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Owner name: HUBEI GUOCHUANG HIGH AND NEW MATERIALS CO., LTD. Free format text: FORMER OWNER: TONGFA SCIENCE AND TECHNOLOGY DEVELOPMENT CO LTD, HUBEI Effective date: 20041029 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20041029 Address after: 430074, 17 building, hi tech building, Kanto Science Park, Wuchang District, Wuhan, Hubei Patentee after: Hubei Guochuang Hi-tech Material Co., Ltd. Address before: 430061 No. 34 Zhonghua Road, Wuhan, Hubei, Wuchang Patentee before: Tongfa Science and Technology Development Co., Ltd., Hubei |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041020 Termination date: 20171116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |