CN103374230B - Preparation method of SBS modified asphalt - Google Patents
Preparation method of SBS modified asphalt Download PDFInfo
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- CN103374230B CN103374230B CN201210109288.7A CN201210109288A CN103374230B CN 103374230 B CN103374230 B CN 103374230B CN 201210109288 A CN201210109288 A CN 201210109288A CN 103374230 B CN103374230 B CN 103374230B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 3
- 229920000098 polyolefin Polymers 0.000 claims abstract description 3
- 239000005864 Sulphur Substances 0.000 claims description 13
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000012876 carrier material Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000004821 distillation Methods 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 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 abstract 6
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 abstract 6
- 238000010438 heat treatment Methods 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 239000000084 colloidal system Substances 0.000 abstract 1
- 239000000295 fuel oil Substances 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 14
- 239000006185 dispersion Substances 0.000 description 9
- 230000035515 penetration Effects 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 8
- 239000000839 emulsion Substances 0.000 description 8
- 238000002955 isolation Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- -1 polyoxyethylene Polymers 0.000 description 4
- 230000003019 stabilising effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 241001201614 Prays Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002780 morpholines Chemical class 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000004646 sulfenyl group Chemical group S(*)* 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a preparation method of SBS modified asphalt; heating the matrix asphalt to 160 ℃, adding SBS (styrene butadiene styrene), wherein the addition amount of SBS is 2.5-10% of the matrix asphalt, adding stabilizer, the addition amount of SBS is 0.2-0.5% of the matrix asphalt, heating to 170-185 ℃, and carrying out high-speed shearing or colloid mill grinding for 40-60 minutes to obtain a stable SBS modified asphalt product meeting the requirements; the stabilizer consists of 6-30 parts of sulfur, 6-15 parts of phenyl olefin polymer, 30-40 parts of aromatic heavy oil and 10-40 parts of dispersing carrier substance according to parts by weight; the asphalt produced by the method reaches the level of similar asphalt products abroad and meets the technical requirement of grade A in the technical Specification for constructing asphalt road surfaces for highways (JTG F40-2004) of the Ministry of transportation.
Description
Technical field
The present invention relates to a kind of preparation method of SBS modifying asphalt, solve the problem of SBS modifying asphalt segregation, belong to petrochemical industry.
Background technology
Because the molecular weight differences of pitch and polymers polystyrene-divinyl (SBS) is comparatively large, cause the hot storage stability of SBS modifying asphalt poor, isolation test result can not meet technical requirements.The stabilization technique of polymer modified asphalt is insoluble technical barrier always.
Current research mainly adds sulphur in pitch, under certain reaction conditions, makes SBS that crosslinking reaction occur.Because pitch has certain polarity, can with SBS partially compatible, can interfacial energy be reduced by the crosslinking reaction of SBS, but the crosslinking reaction process of SBS is the principal element affecting modifying asphalt stability; Existing stablizer only produces pitch for naphthenic base crude and the stable of SBS plays good stabilising effect, does not have versatility.For the pitch of the high high sulfenyl crude production of asphalt content, stabilising effect is poor, easily occurs gelatin phenomenon, and the SBS modifying asphalt segregation phenomenon of production is serious, and the SBS after often crosslinked is separated completely with pitch, causes storage facilities to be scrapped;
The patent No. " 200910023627.8 " disclose a kind of SBS modified asphalt stabilizer, consist of 0.5-5 part sulphur, multi-functional olefinic monomer 0.2-5 part of fragrant heterocycle, 90-100 part fragrance viscous crude; Owing to adding more aromatic hydrocarbons viscous crude, stablizer presents liquid state, and sulphur is incompatible with aromatic hydrocarbons viscous crude with fragrant heterocycle, if three kinds of material mixing together, there will be the problems such as pulverulent solids sedimentation precipitation, thus cause stablizer add-on inaccurate, affect stabilising effect; Cause technological process loaded down with trivial details if point add membership for three times, affect production treatment capacity; In addition, the massfraction of effective constituent is on the low side, and cause add-on large, feed time is long, affects the technology controlling and process of reaction process; In the embodiment of this patent disclosure, the add-on of SBS is only 4.5%, and the SBS of this add-on is more stable than being easier to, and cannot illustrate that this technology has stronger suitability.
The patent No.: 200910013391.X king can weigh, a kind of stablizer of material of construction, by polyoxyethylene glycol 10-20,5 ~ 10 parts, sulphur, calcium chloride 10-20 part, defoamer 2-4 part, ethylene-vinyl acetate copolymer 15-30 part, polyoxyethylene 5-15 part, water 20-40 part.The stability of pitch can be improved in plain asphalt, mainly for plain asphalt high temperature stability performance, water stability and cling property, instead of SBS modifying asphalt of the present invention;
The patent No.: 200710009696.4 University of Fuzhou Li Shuan are auspicious; Lin Qing; Dong Shengxiong, a kind of stabiliser composition for polymer modified asphalt; Provide a kind of stablizer, essential substance is EVA (ethylene-vinyl acetate copolymer) and P contained compound, be applicable to the modifying asphalt of SBS addition below 5%, the lab scale 5%SBS modifying asphalt isolation test result adopting this stablizer to make is at about 2 DEG C, full scale plant produce or SBS addition more than 5% time, modifying asphalt isolation test is difficult to reach≤technical requirements of 2.5 DEG C;
The patent No.: 02140429.1 Inst. of Maoming Branch, China Petrochemical Corp Li Yan; Li Hong; Tan Hai; Dang Chenxia etc.; A kind of stabiliser composition for polymer modified asphalt and preparation method; Form primarily of vulcanization crosslinking agent, thiurams crosslinking accelerator, fatty acid acyl amine dispersion agent etc. are composite, these material costs are very high.This stablizer, to effective lower than 6%SBS lab scale modifying asphalt, does not have versatility; Reinforced process is loaded down with trivial details, and operating environment is poor;
The patent No.: the 00123513.3 refined China of China Petroleum & Chemical Corporation Research Institute of Petroleum Guo; Huang Wei prays; Prince army; Zhang Baichun; She Yucheng; Improve a process for preparing modified asphalt for stability in storage, add short vulcanizing agent and be morpholine class or thiuram compound, add the polarity that polar compound, acidic cpd etc. change pitch; Operating environment is poor, process is loaded down with trivial details, and the process time is longer, needs in advance SBS to be carried out pre-treatment 5-7 lab scale, and the reaction times is 1-6 hour; And stabilising effect is unsatisfactory, isolation test result, at about 2 DEG C, does not have versatility; V summary of the invention
The object of this invention is to provide a kind of preparation method of SBS modifying asphalt, be convenient to reinforced production, improve operating environment, and the basic segregation problem solving polymer SBS modified asphalt, make the isolation test result of modifying asphalt meet the technical requirements of .JTG F40-2004.
The preparation method of SBS modifying asphalt of the present invention:
Matrix pitch is heated to 160 DEG C, add SBS, SBS add-on is the 2.5-10% of matrix pitch, add stablizer, add-on is the 0.2-0.5% of matrix pitch, is warming up to 170-185 DEG C, carry out high speed shear or adopt colloidal mill grinding 40-60 minute, namely be met the stable form SBS modified bitumen product of requirement, storage tank can be pumped into and carry out constant temperature storage growth, also can directly entrucking dispatch from the factory.
Stablizer for SBS modifying asphalt of the present invention consists of the following composition by weight:
Sulphur 6-30 part, phenyl olefin polymer 6-15 part, aromatic hydrocarbons viscous crude 30-40 part, dispersible carrier material 10-40 part; Wherein sulphur is industrial sulphur, and particle diameter is more than 200 orders; Aromatic hydrocarbons viscous crude is underpressure distillation lubricant base; Dispersible carrier material is selected from carbon black, white carbon black, mica, diatomite, kaolin, rock asphalt, and particle diameter fineness is more than 200 orders;
The making method of stablizer of the present invention is as follows:
By above material as requested number measure, at 180 DEG C of input Banbury mixeies, carry out mixing banburying, then extruder grain cooling.
Vulcanization of rubber principle is applied to the stabilization technique of SBS modifying asphalt by the present invention, adds the low molecular weight rubber close with SBS structure, and the carrier substance of dispersed sulfur agent, thus makes the colloidal structure that SBS modifying asphalt reaches stable.This stablizer carries out granulation after fully being mixed by Banbury mixer by several material to form.This stablizer is convenient to feed in raw material, and operating environment is good.By controlling the add-on of stablizer and temperature of reaction and reaction times, the vulcanization rate of control SBS, the softening temperature of control SBS modifying asphalt, ductility and viscosity, operating procedure is simple, workable, all have good suitability for various asphalt, add-on is little, effective, be also applicable to produce SBS modifying asphalt and high-viscosity asphalt at high proportion.Isolation test result is less than 2.5 DEG C, and softening temperature can reach 70-90 DEG C.Meet the technical requirements in the Ministry of Communications's industry standard " standard specification for construction and acceptance of highway asphalt pavement " (JTGF40-2004).
The effect of invention
Adopt the technology of sulphur reduction method, control certain temperature of reaction and reaction times, a certain amount of element sulphur is supplemented in low kerite, can make sulphur content be about 0.5% penetration of bitumens indices P I value raising 0.5 ~ 1.5, softening temperature improves 2 ~ 6 DEG C, make its originally PI value be-1.8 ~-2.4 bring up to more than-1.5, the softening temperature of pitch also brings up to standard intermediate value from original low limit value, the viscosity of pitch also increases, other change of properties is little, the pitch produced reaches the level of external similar asphaltic products., and meet the technical requirements of the middle A level of the Ministry of Communications's industry standard " standard specification for construction and acceptance of highway asphalt pavement " (JTG F40-2004).
Embodiment
Embodiment 1
Material asphalt is From Huanxiling AH-110, penetration degree 112, and sample thief 1000 grams, adds SBS55 gram, adds stablizer 2.5 grams, and with emulsion dispersion machine high speed shear 40-60 minute, temperature of reaction is 170-185 DEG C, and the asphalt sample obtained is numbering 1.Results of performance analysis, in table 2, meets the technical requirements of I-B in JTGF40-2004.
Embodiment 2
Material asphalt is From Huanxiling AH-110, penetration degree 112, and sample thief 1000 grams, adds SBS65 gram, adds stablizer 2.5 grams, and with emulsion dispersion machine high speed shear 40-60 minute, temperature of reaction is 170-185 DEG C, and the asphalt sample obtained is numbering 2.Results of performance analysis, in table 2, meets the technical requirements of I-C in JTGF40-2004.
Embodiment 3
Material asphalt is From Huanxiling AH-110, penetration degree 112, and sample thief 1000 grams, adds SBS75 gram, adds stablizer 2.5 grams, and with emulsion dispersion machine high speed shear 40-60 minute, temperature of reaction is 170-185 DEG C, and the asphalt sample obtained is numbering 3.Results of performance analysis, in table 2, meets the technical requirements of I-C in JTGF40-2004.
Embodiment 4
Material asphalt is From Huanxiling AH-110, penetration degree 112, sample thief 1000 grams, add SBS85 gram, add aromatic hydrocarbon oil 20 grams, add stablizer 2.7 grams, with emulsion dispersion machine high speed shear 40-60 minute, temperature of reaction is 170-185 DEG C, and the asphalt sample obtained is numbering 4.Results of performance analysis, in table 2, meets the technical requirements of I-C in JTG F40-2004.
Embodiment 5
Material asphalt is Qinhuangdao AH-70, penetration degree 71, sample thief 1000 grams, add SBS55 gram, add aromatic hydrocarbon oil 20 grams, add stablizer 2.5 grams, with emulsion dispersion machine high speed shear 40-60 minute, temperature of reaction is 170-185 DEG C, and the asphalt sample obtained is numbering 5.Results of performance analysis, in table 3, meets the technical requirements of I-D in JTG F40-2004.
Embodiment 6
Material asphalt is shell AH-90, penetration degree 86, and sample thief 1000 grams, adds SBS55 gram, adds aromatic hydrocarbon oil 20 grams, adds stablizer 2.5 grams, and with emulsion dispersion machine high speed shear 40-60 minute, temperature of reaction is 170-185 DEG C, and the asphalt sample obtained is numbering 6.Results of performance analysis, in table 3, meets the technical requirements of I-C in JTG F40-2004.
Embodiment 7
Material asphalt is SK AH-70, penetration degree 73, and sample thief 1000 grams, adds SBS55 gram, adds aromatic hydrocarbon oil 30 grams, adds stablizer 2.5 grams, and with emulsion dispersion machine high speed shear 40-60 minute, temperature of reaction is 170-185 DEG C, and the asphalt sample obtained is numbering 7.Results of performance analysis, in table 3, meets the technical requirements of I-D in JTG F40-2004.
Embodiment 8
Material asphalt is Zhonghai 36-1 AH-90, penetration degree 89, and sample thief 1000 grams, adds SBS65 gram, adds stablizer 2.5 grams, and with emulsion dispersion machine high speed shear 40-60 minute, temperature of reaction is 170-185 DEG C, and the asphalt sample obtained is numbering 8.Results of performance analysis, in table 3, meets the technical requirements of I-C in JTGF40-2004.
The analytical results of table 1 material asphalt
Table 2SBS performance of modified bitumen analytical results
Table 3SBS performance of modified bitumen analytical results
Claims (1)
1. the preparation method of a SBS modifying asphalt, it is characterized in that: matrix pitch is heated to 160 DEG C, add SBS, SBS add-on is the 2.5-10% of matrix pitch, add stablizer, add-on is 0.25% of matrix pitch, is warming up to 170-185 DEG C, carry out high speed shear or adopt colloidal mill grinding 40-60 minute, be namely met the stable form SBS modified bitumen product of requirement;
Described stablizer by weight by sulphur 6-30 part, phenyl ring olefin polymer 6-15 part, aromatic hydrocarbons viscous crude 30-40 part, dispersible carrier material 10-40 part form; By described stabilizer component at 180 DEG C of input Banbury mixeies, carry out mixing banburying, then extruder grain cooling obtains stablizer;
Described sulphur is industrial sulphur, and particle diameter is more than 200 orders;
Described aromatic hydrocarbons viscous crude is underpressure distillation lubricant base;
Described dispersible carrier material is selected from carbon black, white carbon black, mica, diatomite, kaolin, rock asphalt, and particle diameter fineness is more than 200 orders.
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| CN201210109288.7A CN103374230B (en) | 2012-04-13 | 2012-04-13 | Preparation method of SBS modified asphalt |
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| CN103374230B true CN103374230B (en) | 2015-09-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104672930A (en) * | 2015-03-10 | 2015-06-03 | 中化弘润石油化工有限公司 | Continuous production technology for SBS (styrene-butadiene-styrene) modified asphalt |
| CN104962088A (en) * | 2015-06-26 | 2015-10-07 | 安徽顺驰电缆有限公司 | Preparation technology for rubber asphalt parent |
| CN106189291B (en) * | 2016-07-15 | 2018-10-23 | 黑龙江省中信路桥材料有限公司 | Iranian natural rock asphalt modified pitch and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324895A (en) * | 2001-07-05 | 2001-12-05 | 上海交通大学 | Production process of modified asphalt mateiral for road |
| CN101077935A (en) * | 2007-04-13 | 2007-11-28 | 广州路翔股份有限公司 | Process for preparing high elasticity modified asphalt |
| CN101628989A (en) * | 2009-08-19 | 2010-01-20 | 西安国琳实业有限公司 | Sbs modified asphalt stabilizer and preparation method thereof |
| CN102040846A (en) * | 2009-10-16 | 2011-05-04 | 中国石油化工股份有限公司 | Oil-resistant asphalt pavement material and preparation method thereof |
| CN102382329A (en) * | 2010-09-02 | 2012-03-21 | 中国石油化工股份有限公司 | Sulfur-containing stabilizer and polymer modified asphalt and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7037961B2 (en) * | 2003-09-09 | 2006-05-02 | Intevep, S.A. | Method for preparation of asphalt composition |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324895A (en) * | 2001-07-05 | 2001-12-05 | 上海交通大学 | Production process of modified asphalt mateiral for road |
| CN101077935A (en) * | 2007-04-13 | 2007-11-28 | 广州路翔股份有限公司 | Process for preparing high elasticity modified asphalt |
| CN101628989A (en) * | 2009-08-19 | 2010-01-20 | 西安国琳实业有限公司 | Sbs modified asphalt stabilizer and preparation method thereof |
| CN102040846A (en) * | 2009-10-16 | 2011-05-04 | 中国石油化工股份有限公司 | Oil-resistant asphalt pavement material and preparation method thereof |
| CN102382329A (en) * | 2010-09-02 | 2012-03-21 | 中国石油化工股份有限公司 | Sulfur-containing stabilizer and polymer modified asphalt and preparation method thereof |
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