CN104448850A - Preparation method of novel modified asphalt - Google Patents
Preparation method of novel modified asphalt Download PDFInfo
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- CN104448850A CN104448850A CN201410672764.5A CN201410672764A CN104448850A CN 104448850 A CN104448850 A CN 104448850A CN 201410672764 A CN201410672764 A CN 201410672764A CN 104448850 A CN104448850 A CN 104448850A
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Abstract
The invention provides a preparation method of novel modified asphalt. The preparation method comprises the following steps: firstly heating and dehydrating asphalt, pouring the dehydrated asphalt into a high-speed shearing machine for shearing, adding ground butadiene styrene rubber into the shearing machine according to a certain proportion, accelerating the speed of the shearing machine, and performing shearing for 5-10 minutes so as to obtain the novel modified asphalt. The asphalt is higher in softening point and good in high temperature resistance; products are rich in resources and low in cost; the preparation technology is simple, and the novel modified asphalt is easy to produce in a large-scale manner.
Description
Technical field
The present invention relates to a kind of petroleum products material, particularly a kind of modifying asphalt and preparation method thereof, belongs to field of new.
Background technology
Pitch is a kind of product of Crude Oil Processing, is thick liquid or the solid of black or chocolate at normal temperatures, and it is the organic material as a form of gel of a kind of brownish black, and main component is bituminous matter and resin.Pitch is widely used in Road construction.As the construction of the high-grade highway of transport by road main channel, particularly motorway, to promoting that very important effect is played in the fast development of national economy.Since eighties of last century the eighties reform and opening-up, China's Economic development is rapid, highway development also achieves brilliant achievement, China Expressway is broken through 30,000 kilometers of total kilometrages and is occupied the second in the world, the demand of road bitumen increases year by year, " 12 " period, road bitumen consumption is every year on average at about 1,500 ten thousand tons.
Bituminous pavement advantage is a lot, and one is wheel and road surface two-stage vibration damping, and therefore road-ability is good, noise is little; Two is flexible pavement strong adaptabilities to roadbed, foundation deformation or non-uniform settling; Three is that speed is repaired soon in road surface, can be open to traffic after rolling.But China is vast in territory, south is large with boreal climate difference, temperature, rainfall are not identical yet, and cause the behaviour in service difference of bituminous pavement very large, the reason difference that bituminous pavement destroys is large.As high in the Low temperature property requirements of cold district to pitch, hot area requires high to the high-temperature stability of pitch, and moist area of heavy rainfull then requires high to the water stability of pitch.And plain asphalt can not meet all use properties requirements, the measured pitch of matter must be adopted, to meet the requirement of varying environment Pavement Performance in Distress.
Crude oil in China major part is paraffinic base, road bitumen produced by paraffinic crude and the higher intermediate base crude oil of wax content then improper distillation method, high-quality asphalt is less, can not meet the expressway construction demand increased rapidly, therefore a large amount of main dependence on import of pitch.In recent years, for meeting the need of market, domestic many producers adopt inlet part crude production heavy traffic paving asphalt, and road asphalt quality is greatly improved, but indivedual index is unstable.Thus, try to explore that output is large, cost is low, stability is strong, the simple novel asphalt of technique, in order to improve the performance of road asphalt, realize reducing engineering cost, ensureing construction quality, oneself becomes the important content of high-performance pitch research.The invention provides a kind of preparation method of modifying asphalt, the pitch of this explained hereafter introduces response type stablizer on the basis of matrix pitch, reactive blending modification is carried out to pitch, the modification of nonpetroleum pitch reactive blending can significantly improve pitch hot storage stability, and significantly improves the use properties of pitch.This good storage stability is the basis ensureing nonpetroleum pitch good road performance.
Summary of the invention
The object of this invention is to provide a kind of preparation method of modifying asphalt, this preparation method carries out as follows:
(1), first by pitch holding vessel, be placed in thermal dehydration on the sand bath of temperature controllable, oil bath, electric mantle, and stir gently with glass stick, prevent local superheating;
(2), when observation pitch does not have foam to emerge, stop heating, rapidly pitch is poured in high-speed shearing machine;
(3) start high-speed shearing machine, control rotating speed within 500r/min;
(4) styrene-butadiene rubber(SBR) is added in shears by a certain percentage;
(5) shears speed is increased to more than 600r/min, shears 5-10min, namely produce a kind of novel modified asphalt.
As preferred embodiments of the present invention, pitch dewatering Heating temperature is no more than 100 DEG C.
As preferred embodiments of the present invention, styrene-butadiene rubber(SBR) preferentially adopts reverse ratio rubber.
As preferred embodiments of the present invention, styrene-butadiene rubber(SBR) wants first levigate, then joins in shears.
As preferred embodiments of the present invention, the ratio of styrene-butadiene rubber(SBR) addition and pitch addition is less than 1:10.
The present invention has following advantages and characteristic:
(1) this pitch softening point is higher, and high temperature resistant property is good;
(2) product resource is abundant, cheap;
(3) preparation technology is simple, easy scale operation.
Embodiment
Embodiment one:
(1) take 200g pitch and put into beaker, sand bath beaker being placed in 80 DEG C is heated, and stirs gently with glass stick, prevents local superheating;
(2) observing pitch bubbling situation, when stopping emerging foam, stopping heating;
(3) rapidly the pitch of dehydration is poured in high-speed shearing machine, start high-speed shearing machine, rotating speed is set to 300r/min;
(4) get styrene-butadiene rubber(SBR) 20g, put into grinding pot and wear into molecule;
(5) the levigate styrene-butadiene rubber(SBR) of collection is added in shears, and shears speed is increased to 600r/min;
(6) shear 5min, namely produce a kind of novel modified asphalt.
Embodiment two:
(1) take 500g pitch and put into beaker, sand bath beaker being placed in 90 DEG C is heated, and stirs gently with glass stick, prevents local superheating;
(2) observing pitch bubbling situation, when stopping emerging foam, stopping heating;
(4) rapidly the pitch of dehydration is poured in high-speed shearing machine, start high-speed shearing machine, rotating speed is set to 400r/min;
(5) get styrene-butadiene rubber(SBR) 50g, put into grinding pot and wear into molecule;
(6) the levigate styrene-butadiene rubber(SBR) of collection is added in shears, and shears speed is increased to 700r/min;
(6) shear 8min, namely produce a kind of novel modified asphalt.
Embodiment three:
(1) take 5000g pitch and put into iron ware, the sand bath being placed in 100 DEG C is heated, and stirs with wooden stick, prevents local superheating;
(2) observing pitch bubbling situation, when stopping emerging foam, stopping heating;
(3) rapidly the pitch of dehydration is poured in high-speed shearing machine, start high-speed shearing machine, rotating speed is set to 500r/min;
(4) get styrene-butadiene rubber(SBR) 300g, put into grinding pot and wear into molecule;
(5) the levigate styrene-butadiene rubber(SBR) of collection is added in shears, and shears speed is increased to 800r/min;
(6) shear 10min, namely produce a kind of novel modified asphalt.
Claims (5)
1. a preparation method for novel modified asphalt, is characterized in that this preparation method carries out as follows:
(1), by pitch holding vessel, be placed in thermal dehydration on the sand bath of temperature controllable, oil bath, electric mantle;
(2), when observation pitch does not have foam to emerge, stop heating, rapidly pitch is poured in high-speed shearing machine;
(3) start high-speed shearing machine, control rotating speed within 500r/min;
(4) styrene-butadiene rubber(SBR) is added in shears by a certain percentage;
(5) shears speed is increased to more than 600r/min, shears 5-10min, namely produce a kind of novel modified asphalt.
2. the preparation method of a kind of novel modified asphalt according to claim 1, it is characterized in that step (1) medium pitch dehydrothermal temperature be no more than 100 DEG C.
3. the preparation method of a kind of novel modified asphalt according to claim 1, is characterized in that styrene-butadiene rubber(SBR) preferentially adopts reverse ratio rubber.
4. the preparation method of a kind of novel modified asphalt according to claim 1, is characterized in that styrene-butadiene rubber(SBR) wants first levigate, then joins in shears.
5. the preparation method of a kind of novel modified asphalt according to claim 1, is characterized in that the ratio of styrene-butadiene rubber(SBR) addition and pitch addition is less than 1:10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672764.5A CN104448850A (en) | 2014-11-23 | 2014-11-23 | Preparation method of novel modified asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672764.5A CN104448850A (en) | 2014-11-23 | 2014-11-23 | Preparation method of novel modified asphalt |
Publications (1)
| Publication Number | Publication Date |
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| CN104448850A true CN104448850A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410672764.5A Pending CN104448850A (en) | 2014-11-23 | 2014-11-23 | Preparation method of novel modified asphalt |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250766A (en) * | 2016-12-28 | 2018-07-06 | 岑祚师 | A kind of modified asphalt composite and preparation method thereof |
| CN108250769A (en) * | 2016-12-29 | 2018-07-06 | 岑祚师 | A kind of dopen Nano Fe3O4Modified asphalt composite |
| CN108250770A (en) * | 2016-12-29 | 2018-07-06 | 岑祚师 | A kind of modified asphalt composite of dopen Nano calcium carbonate and preparation method thereof |
| CN108250768A (en) * | 2016-12-29 | 2018-07-06 | 岑祚师 | A kind of modified asphalt composite for adulterating organo montmorillonite |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487029A (en) * | 2002-09-30 | 2004-04-07 | 西北师范大学高分子研究所 | Modified asphalt material for road and its prepn |
| CN1523050A (en) * | 2003-09-11 | 2004-08-25 | 上海交通大学 | Method for preparing butadiene styrene rubber modified asphalt with high high-temperature storage stability |
| CN101012338A (en) * | 2007-02-08 | 2007-08-08 | 青海盛奥化工有限公司 | SBR modified road bitumen |
| CN101418129A (en) * | 2007-10-26 | 2009-04-29 | 中国石油化工股份有限公司 | Asphalt composite and preparation method thereof |
| CN102051057A (en) * | 2009-10-27 | 2011-05-11 | 中国石油化工股份有限公司 | Styrene butadiene rubber modified asphalt and preparation method thereof |
| CN103102498A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Production method for butadiene styrene rubber modified asphalt |
-
2014
- 2014-11-23 CN CN201410672764.5A patent/CN104448850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487029A (en) * | 2002-09-30 | 2004-04-07 | 西北师范大学高分子研究所 | Modified asphalt material for road and its prepn |
| CN1523050A (en) * | 2003-09-11 | 2004-08-25 | 上海交通大学 | Method for preparing butadiene styrene rubber modified asphalt with high high-temperature storage stability |
| CN101012338A (en) * | 2007-02-08 | 2007-08-08 | 青海盛奥化工有限公司 | SBR modified road bitumen |
| CN101418129A (en) * | 2007-10-26 | 2009-04-29 | 中国石油化工股份有限公司 | Asphalt composite and preparation method thereof |
| CN102051057A (en) * | 2009-10-27 | 2011-05-11 | 中国石油化工股份有限公司 | Styrene butadiene rubber modified asphalt and preparation method thereof |
| CN103102498A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Production method for butadiene styrene rubber modified asphalt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250766A (en) * | 2016-12-28 | 2018-07-06 | 岑祚师 | A kind of modified asphalt composite and preparation method thereof |
| CN108250769A (en) * | 2016-12-29 | 2018-07-06 | 岑祚师 | A kind of dopen Nano Fe3O4Modified asphalt composite |
| CN108250770A (en) * | 2016-12-29 | 2018-07-06 | 岑祚师 | A kind of modified asphalt composite of dopen Nano calcium carbonate and preparation method thereof |
| CN108250768A (en) * | 2016-12-29 | 2018-07-06 | 岑祚师 | A kind of modified asphalt composite for adulterating organo montmorillonite |
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Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |