CN103232714A - High-softening-point SBS (styrene-butadiene-styrene) modified asphalt and preparation method thereof - Google Patents
High-softening-point SBS (styrene-butadiene-styrene) modified asphalt and preparation method thereof Download PDFInfo
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- CN103232714A CN103232714A CN2013101593669A CN201310159366A CN103232714A CN 103232714 A CN103232714 A CN 103232714A CN 2013101593669 A CN2013101593669 A CN 2013101593669A CN 201310159366 A CN201310159366 A CN 201310159366A CN 103232714 A CN103232714 A CN 103232714A
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- Prior art keywords
- sbs
- asphalt
- oil
- point
- modifying asphalt
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010426 asphalt Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 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 title abstract 7
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 title abstract 7
- 239000003027 oil sand Substances 0.000 claims abstract description 31
- 239000010779 crude oil Substances 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000010008 shearing Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 230000008961 swelling Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000011295 pitch Substances 0.000 claims description 43
- 239000011159 matrix material Substances 0.000 claims description 39
- 238000005303 weighing Methods 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 26
- 238000007670 refining Methods 0.000 claims description 11
- 230000035515 penetration Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract 6
- 239000003607 modifier Substances 0.000 abstract 3
- 239000004035 construction material Substances 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention provides a high-softening-point SBS (styrene-butadiene-styrene) modified asphalt and a preparation method thereof, belonging to the technical field of construction materials. The modified asphalt is prepared from substrate asphalt as the raw material, and the substrate asphalt is compounded from oil sand and CNOOC crude oil. The preparation method comprises the following steps: heating the substrate asphalt to a certain temperature until the substrate asphalt can completely flow; adding a linear SBS modifier into the substrate asphalt to carry out swelling and shearing; and adding a stabilizer into the mixture of the substrate asphalt and SBS modifier, and stirring. The oil sand is used as the raw material, thereby fully utilizing the oil sand resource and obviously enhancing the softening point of the asphalt (the softening point can be higher than 85 DEG C); by adopting the CNOOC crude oil and linear SBS modifier, the prepared product has high stability, and the low-temperature, 135 DEG C viscosity and other indexes satisfy the national modified asphalt standard for roads; and the technique is simple and easy to implement, convenient to operate and convenient for industrial production.
Description
Technical field
The present invention relates to a kind of pitch for highway and preparation method thereof, belong to building material technical field, be specifically related to a kind ofly mix the high softening-point SBS modifying asphalt that refining gained matrix pitch prepares with oil-sand and CNOOC's crude oil.
Background technology
Adopting polymkeric substance that road bitumen is carried out modification is important measures that improve and improve the asphalt pavement performance, by being mixed, polymkeric substance improves use properties in the road bitumen, energy significant prolongation pavement life, reduce noise, improve road-ability and security, SBS is a kind of thermoplastic elastomeric block copolymer, and the SBS modifying asphalt becomes the main product in the modifying asphalt owing to have good low temperature flexibility and high temperature snappiness, lower temperature sensitivity.
At present commonly used have linear SBS and a star-shaped sbs.When adopting linear SBS to prepare modifying asphalt, when reaching above than high softening-point (as 70 ℃), generally can need higher volume, could satisfy the requirement of low-temperature ductility simultaneously, viscosity is excessive and storage stability is bad but can cause 135 ℃.When reducing the SBS volume, softening temperature can reduce, and low-temperature ductility does not reach requirement yet.Reduce the properties-correcting agent consumption, increase sulfur consumption, though can obtain than high softening-point, low-temperature ductility just can not be up to standard, and 135 ℃ of viscosity also can be excessive; When adopting star-shaped sbs to prepare modifying asphalt, because the more linear SBS structure of star-shaped sbs is finer and close, molecular weight is bigger, must increase the difficulty that mixes with matrix pitch, and storage stability is difficult to guarantee, has increased the difficulty of producing.CN200510134354.6 adopts the mother liquor legal system to be equipped with modifying asphalt, and shortcoming is the preparation overlong time of rubber cement mother liquor, needs 4.5～12 hours, and the mother liquor method must be through 2 mixing, and technology is loaded down with trivial details, is unfavorable for the simplification of producing.
Oil-sand is a kind of sand shape mineral reserve that contain crude oil, composition comprises sand, pitch, mineral substance, Tu Heshui, contained viscosity of crude is higher, asphalt content is more, and the reserves of oil-sand are abundant, as an alternative resource, especially a kind of safe alternate resources is most valuable to the whole world, mix refining gained bitumen production modifying asphalt with oil-sand and other oil sources, both taken full advantage of the oil-sand resource, help to improve the high-temperature behavior of modifying asphalt again.
Summary of the invention
In order to solve problems of the prior art, the present invention proposes a kind of high softening-point SBS modifying asphalt and preparation method thereof, it is raw material with the matrix pitch, matrix pitch is that oil-sand and CNOOC's crude oil are mixed the refining gained, add linear SBS properties-correcting agent, stablizer, its softening temperature of SBS modifying asphalt for preparing reaches more than 85 ℃, and every index of SBS modifying asphalt all reaches requirement.
One of task of the present invention is to provide a kind of high softening-point SBS modifying asphalt, and its technical scheme comprises:
A kind of high softening-point SBS modifying asphalt, it is made up of following raw material according to parts by weight:
1000 parts of matrix pitches, 2～5 parts of stablizers;
Above-mentioned matrix pitch is that oil-sand and crude oil are mixed the refining gained, and above-mentioned matrix pitch is properties-correcting agent with SBS, and the consumption of above-mentioned SBS properties-correcting agent is 30～60 parts.
Preferably, above-mentioned crude oil is CNOOC's crude oil.
Above-mentioned oil-sand and its weight ratio of CNOOC's crude oil are 5～20:100.
The softening temperature of above-mentioned SBS modifying asphalt is 85～92 ℃.
Preferably, oil-sand and its weight ratio of CNOOC's crude oil are 15:100.
Its penetration degree of above-mentioned matrix pitch is 60～80/0.1mm in the time of 25 ℃.
Two of task of the present invention is to provide a kind of high softening-point SBS modified asphalt preparation method, and its technical scheme comprises:
At first take by weighing 1000 parts of matrix pitches according to above-mentioned parts by weight, 2～5 parts of stablizers, 30～60 parts of SBS properties-correcting agent, the matrix pitch that takes by weighing is heated to can be mobile fully, and its Heating temperature is 120～200 ℃; SBS properties-correcting agent is joined in the described matrix pitch, and swelling 30～120min uses high-speed shearing machine to shear 10～120min; Add stablizer at last, adopt common stirrer to stir 160～1440min.
Preferably, SBS properties-correcting agent is linear SBS properties-correcting agent.
Above-mentioned high-speed shearing machine rotating speed is 2000～5000rpm, and above-mentioned common stirrer rotating speed is 500～2000rpm.
The useful technique effect that the present invention brings:
The present invention proposes a kind of high softening-point SBS modifying asphalt and preparation method thereof, it is on raw material is chosen, having adopted matrix pitch is raw material, and matrix pitch is that oil-sand and CNOOC's crude oil are mixed the refining gained, because the sulphur content of oil-sand own is higher, therefore be that its softening temperature of pitch of obtaining of feedstock production is higher relatively with the oil-sand, can reach more than 85 ℃, in addition, selecting oil-sand for use is raw material, both take full advantage of the oil-sand resource, significantly improved the softening temperature of pitch again; Select CNOOC's crude oil for use and select linear SBS properties-correcting agent for use, the product stability for preparing is good, and low temperature, 135 ℃ of indexs such as viscosity all satisfy the road modifying asphalt standard of national regulation; It is on the preparation method, at first matrix pitch being heated to certain temperature makes it can be mobile fully, linear SBS properties-correcting agent is joined swelling in the matrix pitch, shearing, adding stablizer then in the mixture of matrix pitch and SBS properties-correcting agent stirs, preparation is finished, and this is simple for process, handled easily, be convenient to suitability for industrialized production.
Embodiment
The present invention proposes a kind of high softening-point SBS modifying asphalt and preparation method thereof, clearer, clear and definite in order to make purpose of the present invention, technical scheme and advantage, below with reference to specific embodiment, the present invention is described in more detail.
The selected raw material of the present invention if no special instructions, all is selected from the raw material in following specification, source:
Matrix pitch: oil-sand and crude oil are mixed the refining gained, and wherein, oil-sand is selected from Canadian oil-sand, and crude oil is selected from CNOOC's crude oil;
Linear SBS properties-correcting agent: Yueyang petrochemical industry 791-H type SBS properties-correcting agent;
Stablizer: the big Science and Technology Ltd. of stone produces.
Embodiment 1:
Take by weighing following raw material according to weight:
Take by weighing the crude oil 1000g of CNOOC, take by weighing oil-sand 50g, the crude oil, the oil-sand that take by weighing are mixed refining obtain matrix pitch fully, standby.
Take by weighing matrix pitch 1000g, linear SBS properties-correcting agent 44g, stablizer 2.9g.
A kind of high softening-point SBS process for preparing modified asphalt may further comprise the steps:
The matrix pitch 1000g that takes by weighing is heated to can be mobile fully, and its Heating temperature is 175 ℃; SBS properties-correcting agent 44g is joined in this matrix pitch, and swelling 90min uses high-speed shearing machine to shear 20min; Adding stablizer at last, is to stir under the 500rpm 480 minutes with common stirrer at rotating speed, prepares high softening-point SBS modifying asphalt, and the performance index of the product for preparing are detected, and the results are shown in Table 1.
Embodiment 2:
Take by weighing following raw material according to weight:
Take by weighing the crude oil 1000g of CNOOC, take by weighing oil-sand 100g, the crude oil, the oil-sand that take by weighing are mixed refining obtain matrix pitch fully, standby.
Take by weighing matrix pitch 1000g, linear SBS properties-correcting agent 46g, stablizer 3.3g.
A kind of high softening-point SBS process for preparing modified asphalt may further comprise the steps:
The matrix pitch 1000g that takes by weighing is heated to can be mobile fully, and its Heating temperature is 180 ℃; SBS properties-correcting agent 46g is joined in this matrix pitch, and swelling 90min uses high-speed shearing machine to shear 30min; Adding stablizer at last, is to stir under the 1000rpm 560 minutes with common stirrer at rotating speed, prepares high softening-point SBS modifying asphalt, and the performance index of the product for preparing are detected, and the results are shown in Table 1.
Embodiment 3:
Take by weighing following raw material according to weight:
Take by weighing the crude oil 1000g of CNOOC, take by weighing oil-sand 180g, the crude oil, the oil-sand that take by weighing are mixed refining obtain matrix pitch fully, standby.
Take by weighing matrix pitch 1000g, linear SBS properties-correcting agent 48g, stablizer 3.5g.
A kind of high softening-point SBS process for preparing modified asphalt may further comprise the steps:
The matrix pitch 1000g that takes by weighing is heated to can be mobile fully, and its Heating temperature is 190 ℃; SBS properties-correcting agent 48g is joined in this matrix pitch, and swelling 90min uses high-speed shearing machine to shear 40min; Adding stablizer at last, is to stir under the 1300rpm 640 minutes with common stirrer at rotating speed, prepares high softening-point SBS modifying asphalt, and the performance index of the product for preparing are detected, and the results are shown in Table 1.
Embodiment 4:
Take by weighing following raw material according to weight:
Take by weighing the crude oil 1000g of CNOOC, take by weighing oil-sand 150g, the crude oil, the oil-sand that take by weighing are mixed refining obtain matrix pitch fully, standby.
Take by weighing matrix pitch 1000g, linear SBS properties-correcting agent 50g, stablizer 3.7g.
A kind of high softening-point SBS process for preparing modified asphalt may further comprise the steps:
The matrix pitch 1000g that takes by weighing is heated to can be mobile fully, and its Heating temperature is 175 ℃; SBS properties-correcting agent 50g is joined in this matrix pitch, and swelling 90min uses high-speed shearing machine to shear 30min; Adding stablizer at last, is to stir under the 1500rpm 720 minutes with common stirrer at rotating speed, prepares high softening-point SBS modifying asphalt, and the performance index of the product for preparing are detected, and the results are shown in Table 1.
Table 1
Should be understood that; above-mentioned description at preferred embodiment is comparatively detailed; can not therefore think the restriction to scope of patent protection of the present invention; those of ordinary skill in the art is under enlightenment of the present invention; do not breaking away under the scope situation that claim of the present invention protects; can also make various deformation such as replacement, simple combination, the scope of asking for protection of the present invention should be as the criterion with claims.
Claims (9)
1. high softening-point SBS modifying asphalt, it is characterized in that: it is made up of following raw material according to parts by weight:
1000 parts of matrix pitches, 2～5 parts of stablizers;
Described matrix pitch is that oil-sand and crude oil are mixed the refining gained, and described matrix pitch is properties-correcting agent with SBS, and the consumption of described SBS properties-correcting agent is 30～60 parts.
2. a kind of high softening-point SBS modifying asphalt according to claim 1, it is characterized in that: described crude oil is CNOOC's crude oil.
3. a kind of high softening-point SBS modifying asphalt according to claim 2, it is characterized in that: described oil-sand and its weight ratio of CNOOC's crude oil are 5～20:100.
4. a kind of high softening-point SBS modifying asphalt according to claim 3, it is characterized in that: the softening temperature of described SBS modifying asphalt is 85～92 ℃.
5. preparation is characterized in that said method comprising the steps of as the method for a kind of high softening-point SBS modifying asphalt as described in the claim 4: at first be heated to can be mobile fully for the matrix pitch that will take by weighing, and its Heating temperature is 120～200 ℃; SBS properties-correcting agent is joined in the described matrix pitch, and swelling 30～120min uses high-speed shearing machine to shear 10～120min; Add stablizer at last, adopt common stirrer to stir 160～1440min.
6. a kind of high softening-point SBS modifying asphalt according to claim 3, it is characterized in that: described oil-sand and its weight ratio of CNOOC's crude oil are 15:100.
7. according to claim 1 or 2 or 3 described a kind of high softening-point SBS modifying asphalts, it is characterized in that: its penetration degree of described matrix pitch is 60～80/0.1mm in the time of 25 ℃.
8. method according to claim 5, it is characterized in that: described high-speed shearing machine rotating speed is 2000～5000rpm, described common stirrer rotating speed is 500～2000rpm.
9. according to each described a kind of high softening-point SBS modifying asphalt of claim 1～4, it is characterized in that: described SBS properties-correcting agent is linear SBS properties-correcting agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310159366.9A CN103232714B (en) | 2013-05-03 | 2013-05-03 | High-softening-point SBS (styrene-butadiene-styrene) modified asphalt and preparation method thereof |
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| CN201310159366.9A CN103232714B (en) | 2013-05-03 | 2013-05-03 | High-softening-point SBS (styrene-butadiene-styrene) modified asphalt and preparation method thereof |
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| CN103232714A true CN103232714A (en) | 2013-08-07 |
| CN103232714B CN103232714B (en) | 2015-04-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961505A (en) * | 2021-02-05 | 2021-06-15 | 辽宁省交通科学研究院有限责任公司 | Normal-temperature viscous emulsified asphalt cement and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5798595A (en) * | 1980-12-10 | 1982-06-18 | Mitsubishi Oil Co Ltd | Coal oil mixture |
| CN1289801A (en) * | 1999-09-29 | 2001-04-04 | 中国石油化工集团公司 | Process for preparing polymer-asphalt composition |
| CN1765996A (en) * | 2004-10-29 | 2006-05-03 | 中国石油化工股份有限公司 | Polymer modification asphalt cement for open-Graded pavement and its preparation method |
| CN101125957A (en) * | 2007-08-16 | 2008-02-20 | 中国海洋石油总公司 | Method for preparing polymer modified asphalt |
-
2013
- 2013-05-03 CN CN201310159366.9A patent/CN103232714B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5798595A (en) * | 1980-12-10 | 1982-06-18 | Mitsubishi Oil Co Ltd | Coal oil mixture |
| CN1289801A (en) * | 1999-09-29 | 2001-04-04 | 中国石油化工集团公司 | Process for preparing polymer-asphalt composition |
| CN1765996A (en) * | 2004-10-29 | 2006-05-03 | 中国石油化工股份有限公司 | Polymer modification asphalt cement for open-Graded pavement and its preparation method |
| CN101125957A (en) * | 2007-08-16 | 2008-02-20 | 中国海洋石油总公司 | Method for preparing polymer modified asphalt |
Non-Patent Citations (1)
| Title |
|---|
| 谢远新: ""油砂沥青在道路工程中的应用前景展望"", 《华东公路》, 20 December 2012 (2012-12-20), pages 39 - 41 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961505A (en) * | 2021-02-05 | 2021-06-15 | 辽宁省交通科学研究院有限责任公司 | Normal-temperature viscous emulsified asphalt cement and preparation method thereof |
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| CN103232714B (en) | 2015-04-15 |
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Address after: 100010 room 1414, Hai Yuan building, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Co-patentee after: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: CNOOC RESEARCH INSTITUTE OF REFINING AND PETROCHEMICALS (BEIJING) Co.,Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: CNOOC RESEARCH INSTITUTE OF REFINING AND PETROCHEMICALS (BEIJING) Co.,Ltd. |
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Effective date of registration: 20180428 Address after: 100010 room 1414, Hai Yuan building, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Co-patentee after: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: CNOOC RESEARCH INSTITUTE OF REFINING AND PETROCHEMICALS (BEIJING) Co.,Ltd. Co-patentee after: CNOOC (QINGDAO) HEAVY OIL PROCESSING ENGINEERING TECHNOLOGY RESEARCH CENTER Co.,Ltd. Address before: 100010 room 1414, Hai Yuan building, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Co-patentee before: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: CNOOC RESEARCH INSTITUTE OF REFINING AND PETROCHEMICALS (BEIJING) Co.,Ltd. |
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