CN105017790A - Production process of SBS modified asphalt - Google Patents
Production process of SBS modified asphalt Download PDFInfo
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- CN105017790A CN105017790A CN201510488358.8A CN201510488358A CN105017790A CN 105017790 A CN105017790 A CN 105017790A CN 201510488358 A CN201510488358 A CN 201510488358A CN 105017790 A CN105017790 A CN 105017790A
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Abstract
The invention discloses a production process of SBS modified asphalt and belongs to the field of modified asphalt. The process comprises the steps of heating 100 parts of matrix asphalt to be from 125 DEG C to 145 DER C, serving 4-20 parts of SBS latex as a modifying agent, adding the modifying agent into the heated matrix asphalt, stirring until bubbles are vanished, namely after the moisture in the SBS latex is evaporated, heating the mixture to be from 160 DEG C to 170 DEG C, adding 1-8 parts of cosolvent and 0.1-0.8 parts of stabilizing agents, stirring for 1-2 hours for development, and obtaining the SBS modified asphalt. The particle size in the SBS latex is less than 5 micrometers, by adding the SBS latex into the hot matrix asphalt directly for stirring, the SBS latex can be dispersed into the hot matrix asphalt uniformly, and swelling and crosslink are achieved between the SBS latex and the matrix asphalt for forming the modified asphalt. According to the production process of the SBS modified asphalt, the process is simple, the equipment investment is low, the energy is saved, the energy consumption is achieved, and the SBS modified asphalt which is prepared through the method is better than the SBS modified asphalt which is prepared with the solid SBS as modifying agents in performance.
Description
Technical field
The present invention relates to modified asphalt technology FIELD OF THE INVENTIONThe, particularly a kind of production technique of SBS modifying asphalt.
Background technology
Solid thermoplastic elastomeric SBS joins in the matrix pitch of 170-185 DEG C by the many employings of current highway industry SBS modifying asphalt production stirs premix, then is ground by colloidal mill, and the growth long period forms.Its technique depends on colloidal mill, and SBS be sheared and be ground to certain particulate, improve the miscibility of itself and matrix pitch, need the motor of relatively high power, current consumption is large; If do not adopt colloidal mill directly to stir growth, in order to ensure SBS dissolving, completely then the production time extends greatly, and holding temperature also needs to consume the more energy, and long-time high temperature also can accelerate the aging of pitch and affect use properties simultaneously.
Adopt solid SBS to prepare SBS modifying asphalt as properties-correcting agent in prior art, shear through colloidal mill and grind and the production technology needing the long period to grow; And SBS latex of the present invention to join in hot matrix pitch and directly stirs the short period of time and grow and form, colloidal mill was not needed to shear the growth of grinding and long period; Present invention process is simple, facility investment is little, energy-saving and cost-reducing, and SBS performance of modified bitumen prepared by the present invention is more excellent than the performance of the SBS modifying asphalt adopting solid SBS to prepare as properties-correcting agent.
Summary of the invention
In order to make up above deficiency, the invention provides a kind of production technique of energy-saving and cost-reducing, facility investment is little, production cost is low SBS modifying asphalt.
Technical scheme of the present invention is:
A kind of production technique of SBS modifying asphalt, 100 parts of matrix pitches are heated to 125-145 DEG C, 4-20 part SBS latex slowly joins in hot matrix pitch as properties-correcting agent, stir, treat bubble collapse, namely, after moisture in SBS latex is evaporated, be warming up to 160-170 DEG C, add 1-8 part solubility promoter and 0.1-0.8 part stablizer, stir growth 1-2h and namely obtain SBS modifying asphalt.
When adding SBS latex, slowly add while stirring, add speed and be advisable with not tank boil-overs.
Preferably, matrix pitch is heated to 130-140 DEG C.
Further, 6-12 part SBS latex is added in 100 parts of hot matrix pitches.
Preferably, 1-4 part solubility promoter and 0.1-0.5 part stablizer is added.
Preferably, described solubility promoter be rubber oil, subtract third fractional oil, subtract four lines oil, furfural oily in any one or a few.
Preferably, described matrix pitch is attached most importance to friendship petroleum pitch.Label can be 50#, 70#, 90# etc.
Diameter of particle in SBS latex is less than 5 microns, directly adds in the matrix pitch of heat and stirs, can evenly spread in hot matrix pitch, and is cross-linked with matrix pitch Fast-swelling, forms modifying asphalt.
As shown in Figure 1 and Figure 2, the difference that the present invention and traditional employing solid SBS prepare the SBS modifying asphalt working method (referred to as " traditional SBS modifying asphalt technology of preparing ") of SBS modifying asphalt as properties-correcting agent is:
1) modifier material is different, and the properties-correcting agent that traditional SBS modifying asphalt technology of preparing adopts is SBS is solid, and the properties-correcting agent that the present invention adopts is liquid SBS latex;
2) traditional SBS modifying asphalt technology of preparing needs heated substrate pitch to more than 170 DEG C, and needs to carry out shearing grinding by colloidal mill, then keeps high temperature to grow 4-10 hour, production temperature is high, and the production cycle is long, and energy consumption is high, and easily cause ageing of asphalt, facility investment and production cost high; The present invention's heated substrate pitch in early stage 130-140 DEG C, be warmed up to 160-170 DEG C after evaporation removing moisture, then constant temperature grows 1-2 hour, production temperature is lower, with short production cycle, save energy, and not easily causes ageing of asphalt;
3) facility investment of traditional SBS modifying asphalt technology of preparing is large, and facility investment of the present invention is little, and decrease purchasing of colloidal mill and support equipment, with low cost, apparatus and process is simple.
Beneficial effect of the present invention is:
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the production technological process of SBS modifying asphalt of the present invention;
Fig. 2 is the production technological process of prior art SBS modifying asphalt.
Embodiment
For the SBS latex of 40% commercially available solid content.The SBS latex produced as Shandong Dashan Road & Bridge Co., Ltd. is example
Embodiment 1
Extra large 70# during matrix pitch adopts, reaches I-D index.70# extra large in 100 parts is heated to 130 DEG C, the SBS latex of 6 parts is slowly counted under stirring, treat that bubble collapse shows that moisture is evaporated, heat to 165 DEG C and add the rubber oil of 1 part and the stablizer (sulphur or sulfide) of 0.2 part again and stir growth 1 hour i.e. obtained SBS modifying asphalt.The index of gained modifying asphalt is: softening temperature 62 DEG C, penetration degree 53dmm, 5 DEG C of ductility 23cm.
Embodiment 2
Matrix pitch adopts Shandong 70#, reaches I-D index.The Shandong 70# of 100 parts is heated to 140 DEG C, the SBS latex of 8 parts is slowly counted under stirring, treat that bubble collapse shows that moisture is evaporated, heat to 170 DEG C and add the rubber oil of 2 parts and the stablizer (sulphur) of 0.2 part again and stir growth 1 hour i.e. obtained SBS modifying asphalt.The index of gained modifying asphalt is: softening temperature 66 DEG C, penetration degree 55dmm, 5 DEG C of ductility 27cm.
Embodiment 3
Extra large 90# during matrix pitch adopts, reaches I-C index.90# extra large in 100 parts is heated to 140 DEG C, the SBS latex of 8 parts is slowly counted under stirring, treat that bubble collapse shows that moisture is evaporated, heat to 165 DEG C and add the furfural oil of 1 part and the stablizer (sulfide) of 0.2 part again and stir growth and namely obtain SBS modifying asphalt in 1 hour.The index of gained modifying asphalt is: softening temperature 63 DEG C, penetration degree 65dmm, 5 DEG C of ductility 35cm.
Embodiment 4
Matrix pitch adopts Shandong 90#, reaches I-C index.The Shandong 90# of 100 parts is heated to 140 DEG C, the SBS latex of 10 parts is slowly counted under stirring, treat that bubble collapse shows that moisture is evaporated, be heated to 170 DEG C of subtract four lines oil and stablizers (sulphur or sulfide) of 0.15 part adding 2 parts again and stir growth and namely obtain SBS modifying asphalt in 1 hour.The index of gained modifying asphalt is: softening temperature 70 DEG C, penetration degree 60dmm, 5 DEG C of ductility 40cm.
Embodiment 5
Extra large 50# during matrix pitch adopts, reaches I-D index.50# extra large in 100 parts is heated to 135 DEG C, the SBS latex of 12 parts is slowly counted under stirring, treat that bubble collapse shows that moisture is evaporated, heat to 168 DEG C of stablizers (sulphur or sulfide) subtracting third fractional oil and 0.25 part adding 4 parts again and stir growth 2 hours i.e. obtained SBS modifying asphalt.The index of gained modifying asphalt is: softening temperature 70 DEG C, penetration degree 48dmm, 5 DEG C of ductility 26cm.
Embodiment 6
Matrix pitch adopts SK90#, reaches I-C index.The SK90# of 100 parts is heated to 130 DEG C, the SBS latex of 6 parts is slowly counted under stirring, treat that bubble collapse shows that moisture is evaporated, heat to 165 DEG C of stablizers (sulphur or sulfide) adding 0.25 part again and stir growth 1 hour i.e. obtained SBS modifying asphalt.The index of gained modifying asphalt is: softening temperature 58 DEG C, penetration degree 65dmm, 5 DEG C of ductility 32cm.
Embodiment 7
Matrix pitch adopts SK70#, reaches I-C index.The SK70# of 100 parts is heated to 130 DEG C, the SBS latex of 8 parts is slowly counted under stirring, treat that bubble collapse shows that moisture is evaporated, heat to 167 DEG C and add the rubber oil of 3 parts and the stablizer (sulphur or sulfide) of 0.20 part again and stir growth 2 hours i.e. obtained SBS modifying asphalt.The index of gained modifying asphalt is: softening temperature 64 DEG C, penetration degree 63dmm, 5 DEG C of ductility 33cm.
Embodiment 8
Matrix pitch adopts SK70#, reaches I-D index.The SK70# of 100 parts is heated to 130 DEG C, the SBS latex of 10 parts is slowly counted under stirring, treat that bubble collapse shows that moisture is evaporated, heat to 170 DEG C and add the rubber oil of 1 part and the stablizer (sulphur or sulfide) of 0.20 part again and stir growth 2 hours i.e. obtained SBS modifying asphalt.The index of gained modifying asphalt is: softening temperature 75 DEG C, penetration degree 51dmm, 5 DEG C of ductility 25cm.
Claims (6)
1. the production technique of a SBS modifying asphalt, it is characterized in that: 100 parts of matrix pitches are heated to 125-145 DEG C, 4-20 part SBS latex slowly joins in hot matrix pitch as properties-correcting agent, stir, treat bubble collapse, namely, after moisture in SBS latex is evaporated, be warming up to 160-170 DEG C, add 1-8 part solubility promoter and 0.1-0.8 part stablizer, stir growth 1-2h and namely obtain SBS modifying asphalt.
2. the production technique of SBS modifying asphalt as claimed in claim 1, is characterized in that: matrix pitch is heated to 130-140 DEG C.
3. the production technique of SBS modifying asphalt as claimed in claim 2, is characterized in that: add 6-12 part SBS latex in 100 parts of hot matrix pitches.
4. the production technique of SBS modifying asphalt as claimed in claim 1, is characterized in that: add 1-4 part solubility promoter and 0.1-0.5 part stablizer.
5. the production technique of SBS modifying asphalt as described in any one of claim 1-4, is characterized in that: described solubility promoter is rubber oil, subtract third fractional oil, subtract four lines oil, furfural oily in any one or a few.
6. the production technique of SBS modifying asphalt as described in any one of claim 1-4, is characterized in that: described matrix pitch is attached most importance to friendship petroleum pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510488358.8A CN105017790A (en) | 2015-08-11 | 2015-08-11 | Production process of SBS modified asphalt |
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| CN201510488358.8A CN105017790A (en) | 2015-08-11 | 2015-08-11 | Production process of SBS modified asphalt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459826A (en) * | 2017-08-14 | 2017-12-12 | 江苏诺路桥工程检测有限公司 | One kind is exempted to shear SBS modified pitch and preparation method thereof |
| CN111073322A (en) * | 2019-12-31 | 2020-04-28 | 六安市共鑫道路材料有限公司 | Preparation method of SBS latex modified asphalt |
| CN113861708A (en) * | 2021-10-19 | 2021-12-31 | 广州鸿绵合成材料有限公司 | High-viscosity high-elasticity modified asphalt and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103665599A (en) * | 2013-12-21 | 2014-03-26 | 栾晓健 | SBS (styrene butadiene styrene) modified asphalt stabilizer |
| CN103655990A (en) * | 2013-12-03 | 2014-03-26 | 宋爱民 | Traditional Chinese medicinal pill for treating exertional angina pectoris |
| CN103965492A (en) * | 2014-04-23 | 2014-08-06 | 安徽路达泰克沥青新材料有限公司 | Method for preparing low-temperature cross-linked emulsified SBS pitch modifier |
-
2015
- 2015-08-11 CN CN201510488358.8A patent/CN105017790A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103655990A (en) * | 2013-12-03 | 2014-03-26 | 宋爱民 | Traditional Chinese medicinal pill for treating exertional angina pectoris |
| CN103665599A (en) * | 2013-12-21 | 2014-03-26 | 栾晓健 | SBS (styrene butadiene styrene) modified asphalt stabilizer |
| CN103965492A (en) * | 2014-04-23 | 2014-08-06 | 安徽路达泰克沥青新材料有限公司 | Method for preparing low-temperature cross-linked emulsified SBS pitch modifier |
Non-Patent Citations (2)
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| 中国石化出版社: "《沥青生产与应用技术手册》", 31 May 2010 * |
| 陈淳: "《中国石油炼化与销售事业部"十一五"科技论文集》", 31 July 2011, 中国石化出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459826A (en) * | 2017-08-14 | 2017-12-12 | 江苏诺路桥工程检测有限公司 | One kind is exempted to shear SBS modified pitch and preparation method thereof |
| CN107459826B (en) * | 2017-08-14 | 2020-04-03 | 江苏一诺路桥工程检测有限公司 | Shear-free SBS (styrene butadiene styrene) modified asphalt and preparation method thereof |
| CN111073322A (en) * | 2019-12-31 | 2020-04-28 | 六安市共鑫道路材料有限公司 | Preparation method of SBS latex modified asphalt |
| CN111073322B (en) * | 2019-12-31 | 2021-12-24 | 六安市共鑫道路材料有限公司 | Preparation method of SBS latex modified asphalt |
| CN113861708A (en) * | 2021-10-19 | 2021-12-31 | 广州鸿绵合成材料有限公司 | High-viscosity high-elasticity modified asphalt and preparation method thereof |
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Inventor after: Chen Jijiang Inventor after: Wang Zhenghong Inventor after: Hu Lidong Inventor after: Lv Xiaobo Inventor after: Zhang Chao Inventor before: Chen Jijiang Inventor before: Hu Lidong Inventor before: Lv Xiaobo Inventor before: Zhang Chao |
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Application publication date: 20151104 |
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