CN101016465A - Process for preparing high viscosity modified asphalt - Google Patents
Process for preparing high viscosity modified asphalt Download PDFInfo
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- CN101016465A CN101016465A CN 200710026773 CN200710026773A CN101016465A CN 101016465 A CN101016465 A CN 101016465A CN 200710026773 CN200710026773 CN 200710026773 CN 200710026773 A CN200710026773 A CN 200710026773A CN 101016465 A CN101016465 A CN 101016465A
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- modified asphalt
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Abstract
The invention discloses a preparing craft of heavy viscous modified asphalt, which comprises the following steps: delivering base material pitch with temperature at 100-140 deg.c into retort; stirring; adding into furfural extract oil homologous to 0.5-10% of base material pitch weight and SBS homologous to 6-12% of base material pitch weight; mixing; heating the retort to 170-200 deg.c; setting reacting time at 100-160 min; adding stabilizer homologous to 2-8per mill of base material pitch weight; setting reacting time at 30-60 min; setting the mass percent of stabilizer at 40-60% sulphur and 40-60% dicumyl peroxide; shearing the reacting material with high rate; setting the rate of shear at 10-60 min/ton; getting the product. The content of fragrant of furfural extract oil bigger than 10% and 100 deg.c viscosity is 10-200 cp. The molecular weight range of SBS is bigger than 100000, which includes direction of twist, star type or several styrene- butadiene-styrene block copolymer mixtures.
Description
Technical field
The present invention relates to a kind of production technique of high-viscosity modified asphalt.
Background technology
The characteristics of high-viscosity modified asphalt have very high absolute viscosity when being 60 ℃, resistance to flow is strong, but viscosity only increases a little under 60 ℃ the hot conditions being higher than, and guarantees to be easy to construction.High-viscosity modified asphalt has good sticking toughness and low temperature brittle point in addition, the ability that aggregate is had very strong adhesive power and opposing cold cracking, be the bitumen for road use material that is widely used in drainage road, steel sole plate road and bridge face, cold area road surface and SMA road surface, high-viscosity modified asphalt mainly makes by add polymer modification in petroleum pitch at present.
The patent No. is that (publication number: Chinese invention patent CN1429880A) discloses the method for the thermoplastic olefine polymer modified asphalt that a kind of manufacturing has good stability to ZL02116763.X, this method has added one package stabilizer when with thermoplastic elastic body styrene-butadiene-styrene block copolymer (SBS) or styrene-butadiene rubber(SBR) (SBR) pitch being carried out modification, one package stabilizer is made up of density of aromatic hydrocarbon conditioning agent, zinc oxide, sulphur, N-replacement 2-[4-morpholinodithio sulphenamide, zinc salt of dithiocarbamate, Ursol D class.The shortcoming of this method is that the one package stabilizer component is too much, and used each liquid parts and powdery composition distinguished accumulating in the one package stabilizer, mix at the scene when using, complicacy and operation easier that this has just increased technology greatly are unfavorable for industrialized production.The technical process of this method simultaneously is earlier SBS to be mixed with matrix pitch, adds one package stabilizer again, discharging then after with colloidal mill or shears mixture being disperseed.This flow process easily makes one package stabilizer and other raw material reactions insufficient, influences final quality product.
Number of patent application is that 200410053771.3 (publication number: Chinese invention patent application CN1733832A) discloses a kind of memory type SBS modifying asphalt and production method, this product is formed by SBS modified asphalt agglomerate 3～8%, matrix pitch 90～95%, chemical stabilizer 0.1～2% uniform mixing at least, wherein, SBS modified asphalt agglomerate component is: SBS 60～90%, thermoplastic resin PE 5～30%, phase solvent 5～30%; Chemical stabilizer is selected polysulfide or peroxide compound for use, technical process is earlier with SBS, PE, phase solvent extruding pelletization on twin screw extruder proportionally, then SBS modified asphalt agglomerate 3～8%, matrix pitch 90～95%, chemical stabilizer 0.1～2% are mixed at stirring cleavage reaction still, processing condition are 150～170 ℃ of temperature, the stirring velocity of shear is 120～1440rpm, 20～60 minutes time.The technical process of this patent application is to make modified asphalt agglomerate earlier, again with master batch and matrix pitch, that chemical stabilizer stirs shear-mixed is even, technology is more loaded down with trivial details, and the sufficient reacting whether in technical process of the multiple composition in the modified asphalt agglomerate, also can influence final quality product.
Summary of the invention
The object of the present invention is to provide a kind of production technique of high-viscosity modified asphalt, this technological operation is easy, and each component reaction is abundant, and product can reach more than the 30000Pas 60 ℃ absolute viscosity.
The present invention adopts following steps to realize:
Step 1: 100～140 ℃ matrix pitch is sent into retort, and startup is stirred, add the SBS mixing that is equivalent to the furfural extract oil of matrix pitch weight 0.5～10% and is equivalent to matrix pitch weight 6～12% again, retort is warming up to 170～200 ℃, 100～160 minutes reaction times;
Step 2: add the stablizer that is equivalent to matrix pitch weight 2～8 ‰, reacted 30～60 minutes, the compositions in weight percentage of stablizer is:
Sulphur 40～60%
Dicumyl peroxide 40～60%;
Step 3: reacted material is carried out high speed shear form.
Preferred shearing rate is 10～60 minutes/ton.
Compared with prior art, the invention has the advantages that:
A, stablizer of the present invention only contain two kinds of components, when producing, only need each component be added retort and get final product, not need to make separately modified asphalt agglomerate, also not need to allocate in addition one package stabilizer by quantity through accurately metering, make production technique easy and simple to handle, be easy to grasp;
The modifier content of B, the modifying asphalt produced according to the present invention is 5%～11%, and its absolute viscosity of 60 ℃ can reach more than the 30000Pas;
Its projects index such as following table:
| Project | Index |
| Penetration degree (25 ℃ of 0.1mm) | ≥40 |
| Softening temperature (℃) | ≥80 |
| Ductility (5 ℃ of cm) | Actual measurement |
| Ductility (15 ℃ of cm) | ≥50 |
| Flash-point (℃) | ≥260 |
| Sticking toughness (N.m) | ≥20 |
| Toughness (N.m) | ≥15 |
| Segregation (48h) | ＜6℃ |
| Film heating residue quality change (%) | ≤0.6 |
The present invention adopts furfural extract oil swelling SBS, the viscosity of modifying asphalt is strengthened, fragrance divides content greater than 10% in the furfural extract oil, 100 ℃ of viscosity are lO～200cp, the SBS molecular weight ranges is more than 100000, and its structure comprises the mixture of line style, star-like or several styrene-butadiene-styrene block copolymers.
Embodiment
Embodiment 1～3
| Numbering | Matrix pitch | Furfural extract oil | SBS | Mixed stabilizer |
| 1 | 1 | 4％ | 7％ | 0.4％ |
| 2 | 1 | 5％ | 7％ | 0.4％ |
| 3 | 1 | 7％ | 7％ | 0.4％ |
Annotate: the consumption of mixed stabilizer, styrene-butadiene block copolymer (SBS) and furfural extract oil is benchmark with the matrix pitch.
Matrix pitch uses No. 70 pitches of Esso, and sulphur in the mixed stabilizer and dicumyl peroxide respectively account for 50%, and SBS uses LG501.Technical process is: the matrix pitch of certain mass is injected reactor, be warming up to 120 ℃.Add furfural extract oil in last table ratio, add 7% SBS, be heated to 180 ℃, swelling 120 minutes, the mixed stabilizer of adding 0.4% was sheared 30 minutes, and shearing rate is 30 minutes/ton, and reheat stirred 30 minutes, obtained finished product.
Its key technical indexes is as follows:
| Numbering | Softening temperature | Penetration degree | 5 ℃ of ductilities | Thin film oven (TFOT) is aging |
| /℃ | /0.1mm | /cm | Penetration ratio | 5 ℃ of ductility/cm | 60 ℃ of viscosity/Pas | |
| 1 | 89.3 | 58.3 | 41 | 80 | 29.3 | 30150 |
| 2 | ＞100 | 55.2 | 39.7 | 88 | 32.8 | 32550 |
| 3 | 98.3 | 61 | 51.2 | 87 | 38.2 | 45200 |
Embodiment 4～5
| Numbering | Matrix pitch | Furfural extract oil | (SBS) | Mixed stabilizer |
| 4 | 1 | 4％ | 6％ | 0.4％ |
| 5 | 1 | 4％ | 8％ | 0.4％ |
Annotate: the consumption of mixed stabilizer, styrene-butadiene block copolymer (SBS) and furfural extract oil is benchmark with the matrix pitch.
Matrix pitch uses No. 70 pitches of Esso, and sulphur in the mixed stabilizer and dicumyl peroxide respectively account for 50%, and SBS uses LG501.
The matrix pitch of certain mass is injected reactor, be warming up to 120 ℃.Add 4% furfural extract oil, the SBS in last table ratio adds is heated to 180 ℃, swelling 120 minutes, and the mixed stabilizer of adding 0.4% was sheared 30 minutes, and shearing rate is 30 minutes/ton, and reheat stirred 30 minutes, obtained finished product.
Its key technical indexes is as follows:
| Numbering | Softening temperature/℃ | Penetration degree/0.1mm | 5 ℃ of ductility/cm | Thin film oven (TFOT) is aging | ||
| Penetration ratio | 5 ℃ of ductility/cm | 60 ℃ of viscosity/Pas | ||||
| 4 | 92.7 | 53 | 44 | 92 | 26.5 | 32570 |
| 5 | 90 | 55.6 | 46.7 | 93 | 33.3 | 73251 |
Claims (4)
1, a kind of production technique of high-viscosity modified asphalt is characterized in that: adopt following steps
Step 1: 100～140 ℃ matrix pitch is sent into retort, and startup is stirred, add the SBS mixing that is equivalent to the furfural extract oil of matrix pitch weight 0.5～10% and is equivalent to matrix pitch weight 6～12% again, retort is warming up to 170～200 ℃, 100～160 minutes reaction times;
Step 2: add the stablizer that is equivalent to matrix pitch weight 2～8 ‰, reacted 30～60 minutes, the compositions in weight percentage of stablizer is:
Sulphur 40～60%
Dicumyl peroxide 40～60%;
Step 3: reacted material is carried out high speed shear form.
2, the production technique of a kind of high-viscosity modified asphalt according to claim 1, the shearing rate that it is characterized in that step 3 is 10～60 minutes/ton.
3, the production technique of a kind of high-viscosity modified asphalt according to claim 1 is characterized in that: fragrance branch content is 10～200cp greater than 10%, 100 ℃ of viscosity in the described furfural extract oil.
4, the production technique of a kind of high-viscosity modified asphalt according to claim 1, it is characterized in that: the molecular weight ranges of described SBS is more than 100000, and its structure comprises the mixture of line style, star-like or several styrene-butadiene-styrene block copolymers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100267737A CN100543114C (en) | 2007-02-07 | 2007-02-07 | A kind of production technique of high-viscosity modified asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100267737A CN100543114C (en) | 2007-02-07 | 2007-02-07 | A kind of production technique of high-viscosity modified asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101016465A true CN101016465A (en) | 2007-08-15 |
| CN100543114C CN100543114C (en) | 2009-09-23 |
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|---|---|---|---|
| CNB2007100267737A Expired - Fee Related CN100543114C (en) | 2007-02-07 | 2007-02-07 | A kind of production technique of high-viscosity modified asphalt |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457023B (en) * | 2007-12-12 | 2010-11-03 | 中国石油天然气股份有限公司 | Method for preparing polymer modified asphalt by one-step method |
| CN102093728A (en) * | 2010-12-31 | 2011-06-15 | 山西省交通科学研究院 | High-viscosity modified asphalt |
| CN101418127B (en) * | 2007-10-26 | 2011-07-20 | 中国石油化工股份有限公司 | Pavement joint sealing material and preparation method thereof |
| CN101538408B (en) * | 2008-03-19 | 2011-08-31 | 重庆市智翔铺道技术工程有限公司 | High viscosity bitumen and preparation method thereof |
| CN101418126B (en) * | 2007-10-26 | 2011-09-21 | 中国石油化工股份有限公司 | Deck joint filling material and preparation method thereof |
| CN102220021A (en) * | 2010-04-16 | 2011-10-19 | 中国石油化工集团公司 | Emulsified SBS (styrene-butadiene-styrene) modified asphalt and preparation method of emulsified SBS modified asphalt |
| CN102391612A (en) * | 2011-10-20 | 2012-03-28 | 河南万里路桥集团有限公司 | Anionic aqueous colorized road surface crack sealing material and preparation process thereof |
| CN101723619B (en) * | 2008-10-29 | 2012-11-21 | 中国石油化工股份有限公司 | Pavement patching material and preparation method thereof |
| CN103044932A (en) * | 2011-10-17 | 2013-04-17 | 中国石油天然气股份有限公司 | Method for preparing modified asphalt by adopting raw material with low asphaltene content |
| CN103044930A (en) * | 2011-10-17 | 2013-04-17 | 中国石油化工股份有限公司 | Aging-resistant caulking filling material and preparation method thereof |
| CN103881404A (en) * | 2014-04-03 | 2014-06-25 | 宁夏路桥工程股份有限公司 | Method for preparing SBS (styrene-butadiene-styrene block copolymer) modified asphalt additive |
| CN105776958A (en) * | 2016-03-17 | 2016-07-20 | 北京中路铺面技术有限公司 | Method for preparing SBS (styrene butadiene styrene) modified asphalt concrete |
| CN110872447A (en) * | 2018-08-30 | 2020-03-10 | 中国石油化工股份有限公司 | High-viscosity asphalt material for purifying automobile exhaust and preparation method thereof |
| CN117534371A (en) * | 2023-12-29 | 2024-02-09 | 知行良知实业股份有限公司 | High-proportion regenerated rubber asphalt mixture and preparation method thereof |
-
2007
- 2007-02-07 CN CNB2007100267737A patent/CN100543114C/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418127B (en) * | 2007-10-26 | 2011-07-20 | 中国石油化工股份有限公司 | Pavement joint sealing material and preparation method thereof |
| CN101418126B (en) * | 2007-10-26 | 2011-09-21 | 中国石油化工股份有限公司 | Deck joint filling material and preparation method thereof |
| CN101457023B (en) * | 2007-12-12 | 2010-11-03 | 中国石油天然气股份有限公司 | Method for preparing polymer modified asphalt by one-step method |
| CN101538408B (en) * | 2008-03-19 | 2011-08-31 | 重庆市智翔铺道技术工程有限公司 | High viscosity bitumen and preparation method thereof |
| CN101723619B (en) * | 2008-10-29 | 2012-11-21 | 中国石油化工股份有限公司 | Pavement patching material and preparation method thereof |
| CN102220021B (en) * | 2010-04-16 | 2013-04-03 | 中国石油化工集团公司 | Emulsified SBS (styrene-butadiene-styrene) modified asphalt and preparation method of emulsified SBS modified asphalt |
| CN102220021A (en) * | 2010-04-16 | 2011-10-19 | 中国石油化工集团公司 | Emulsified SBS (styrene-butadiene-styrene) modified asphalt and preparation method of emulsified SBS modified asphalt |
| CN102093728A (en) * | 2010-12-31 | 2011-06-15 | 山西省交通科学研究院 | High-viscosity modified asphalt |
| CN103044932A (en) * | 2011-10-17 | 2013-04-17 | 中国石油天然气股份有限公司 | Method for preparing modified asphalt by adopting raw material with low asphaltene content |
| CN103044930A (en) * | 2011-10-17 | 2013-04-17 | 中国石油化工股份有限公司 | Aging-resistant caulking filling material and preparation method thereof |
| CN103044932B (en) * | 2011-10-17 | 2015-08-19 | 中国石油天然气股份有限公司 | The method of modifying asphalt is prepared with the raw material of low asphalt content |
| CN102391612B (en) * | 2011-10-20 | 2013-03-13 | 许昌金欧特沥青股份有限公司 | Anionic aqueous colorized road surface crack sealing material and preparation process thereof |
| CN102391612A (en) * | 2011-10-20 | 2012-03-28 | 河南万里路桥集团有限公司 | Anionic aqueous colorized road surface crack sealing material and preparation process thereof |
| CN103881404A (en) * | 2014-04-03 | 2014-06-25 | 宁夏路桥工程股份有限公司 | Method for preparing SBS (styrene-butadiene-styrene block copolymer) modified asphalt additive |
| CN103881404B (en) * | 2014-04-03 | 2016-03-23 | 宁夏路桥工程股份有限公司 | The method of the making of SBS modified asphalt additive |
| CN105776958A (en) * | 2016-03-17 | 2016-07-20 | 北京中路铺面技术有限公司 | Method for preparing SBS (styrene butadiene styrene) modified asphalt concrete |
| CN105776958B (en) * | 2016-03-17 | 2018-01-05 | 国路高科（北京）工程技术研究院有限公司 | A kind of preparation method of SBS modified asphalt concretes |
| CN110872447A (en) * | 2018-08-30 | 2020-03-10 | 中国石油化工股份有限公司 | High-viscosity asphalt material for purifying automobile exhaust and preparation method thereof |
| CN117534371A (en) * | 2023-12-29 | 2024-02-09 | 知行良知实业股份有限公司 | High-proportion regenerated rubber asphalt mixture and preparation method thereof |
| CN117534371B (en) * | 2023-12-29 | 2024-04-02 | 知行良知实业股份有限公司 | High-proportion regenerated rubber asphalt mixture and preparation method thereof |
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|---|---|
| CN100543114C (en) | 2009-09-23 |
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Address after: 9 building, No. 890 Tianhe North Road, Guangdong, Guangzhou, 510635 Patentee after: Luxiang Co., Ltd. Address before: 9 building, No. 890 Tianhe North Road, Guangdong, Guangzhou, 510635 Patentee before: Guangdong Luxiang Co., Ltd. |
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