CN104479372A - Preparation method of PE asphalt added with glycidyl methacrylate - Google Patents
Preparation method of PE asphalt added with glycidyl methacrylate Download PDFInfo
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- CN104479372A CN104479372A CN201410672765.XA CN201410672765A CN104479372A CN 104479372 A CN104479372 A CN 104479372A CN 201410672765 A CN201410672765 A CN 201410672765A CN 104479372 A CN104479372 A CN 104479372A
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- pitch
- glycidyl methacrylate
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- shears
- polyethylene
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Abstract
The invention provides a preparation method of PE asphalt added with glycidyl methacrylate. The preparation method comprises the steps of firstly adding asphalt into a containing utensil, putting the containing utensil on temperature-controllable sand bath, oil bath and electric jacket, carrying out heating dehydration, pouring the asphalt into a high speed shearing machine after dehydration, shearing, adding ground polyethylene into the high speed shearing machine, adding a small amount of glycidyl methacrylate, and shearing for 5-10 minutes, so as to obtain the PE asphalt added with glycidyl methacrylate. According to the preparation method, the stability of polyethylene in the asphalt is improved, so that PE modified asphalt is relatively convenient to use.
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
The construction of road construction, 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, and highway development also achieves brilliant achievement, and China Expressway is broken through 30,000 kilometers of total kilometrages and occupied the second in the world.Due to the advantage of bituminous highway, present motorway just generally adopts pitch to pave the way." 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.
PE modifying asphalt is that one uses pitch widely.This pitch can improve a lot of performance of pitch, and the traditional technology of this asphalt production polyethylene and protoplasm pitch is put in shears shear.But because the polyethylene being refined into several microns can not heat store for a long time; use and stir in storage process, Polyethylene Particles can be polymerized and cause modification failure, after naturally colder; pitch can assemble building particle, and polyethylene can not keep particulate to be dispersed in lastingly in pitch naturally.This forces PE modifying asphalt to be used while allocating, and PE modifying asphalt be used must to rent expensive large-scale thinning apparatus and be transported to working-yard.The present invention adopts in modifying process, adds glycidyl methacrylate, increases the stability of polyethylene in pitch.Thus it is convenient to make PE modifying asphalt use.
Summary of the invention
The object of this invention is to provide a kind of preparation method adding glycidyl methacrylate PE pitch, 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) polyethylene is added in shears by a certain percentage;
(5) in shears, add a small amount of glycidyl methacrylate;
(6) shears speed is increased to more than 600r/min, shears 5-10min, namely produce a kind of interpolation glycidyl methacrylate PE pitch.
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, polyethylene wants first levigate, then joins in shears.
As preferred embodiments of the present invention, the ratio of polyethylene addition and pitch addition is less than 1:10.
The present invention has following advantages and characteristic:
(1) this preparation method, modifying asphalt is stablized not stratified;
(2) this technique shearing mixing time is short, greatly can provide the production cycle;
(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 heats, and stirs gently with glass stick, prevents local superheating;
(2) observing pitch bubbling situation, when stopping emerging foam, stopping heating;
(3) 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 polyethylene 20g, put into grinding pot and wear into molecule;
(5) levigate polyethylene is added in shears, and add 10 g glycidyl methacrylate;
(6) shears speed is increased to 600r/min, shears 5min, namely produce a kind of interpolation glycidyl methacrylate PE pitch.
Embodiment two:
(1) take 500g pitch and put into beaker, sand-bath beaker being placed in 90 DEG C heats, and stirs gently with glass stick, prevents local superheating;
(2) observing pitch bubbling situation, when stopping emerging foam, stopping heating;
(3) the pitch of dehydration is poured in high-speed shearing machine, start high-speed shearing machine, rotating speed is set to 400r/min;
(4) get polyethylene 50g, put into grinding pot and wear into molecule;
(5) levigate polyethylene is added in shears, and add 25 g glycidyl methacrylate;
(6) shears speed is increased to 700r/min, shears 8min, namely produce a kind of interpolation glycidyl methacrylate PE pitch.
Embodiment three:
(1) take 1000g pitch and put into beaker, sand-bath beaker being placed in 100 DEG C heats, and stirs gently with glass stick, prevents local superheating;
(2) observing pitch bubbling situation, when stopping emerging foam, stopping heating;
(3) 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 polyethylene 100g, put into grinding pot and wear into molecule;
(5) levigate polyethylene is added in shears, and add 50 g glycidyl methacrylate;
(6) shears speed is increased to 800r/min, shears 10min, namely produce a kind of interpolation glycidyl methacrylate PE pitch.
Claims (4)
1. add a preparation method for glycidyl methacrylate PE pitch, it is characterized in that 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;
(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) polyethylene is added in shears by a certain percentage;
(5) in shears, add a small amount of glycidyl methacrylate;
(6) shears speed is increased to more than 600r/min, shears 5-10min, namely produce a kind of interpolation glycidyl methacrylate PE pitch.
2. a kind of preparation method adding glycidyl methacrylate PE pitch according to claim 1, it is characterized in that step (1) medium pitch dehydrothermal temperature be no more than 100 DEG C.
3. a kind of preparation method adding glycidyl methacrylate PE pitch according to claim 1, is characterized in that polyethylene wants first levigate, then joins in shears.
4. a kind of preparation method adding glycidyl methacrylate PE pitch according to claim 1, is characterized in that the ratio of polyethylene addition and pitch addition is less than 1:10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672765.XA CN104479372A (en) | 2014-11-23 | 2014-11-23 | Preparation method of PE asphalt added with glycidyl methacrylate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672765.XA CN104479372A (en) | 2014-11-23 | 2014-11-23 | Preparation method of PE asphalt added with glycidyl methacrylate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104479372A true CN104479372A (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410672765.XA Pending CN104479372A (en) | 2014-11-23 | 2014-11-23 | Preparation method of PE asphalt added with glycidyl methacrylate |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441005A (en) * | 2003-03-31 | 2003-09-10 | 武汉理工大学 | Asphalt modified with desulfurized rubber powder |
| CN1635023A (en) * | 2003-12-25 | 2005-07-06 | 中国石油化工股份有限公司 | Asphalt modified masterbatch and method for preparation |
| CN101104741A (en) * | 2007-08-15 | 2008-01-16 | 中国海洋石油总公司 | Polymer modified asphalt and producing method thereof |
| CN101538408A (en) * | 2008-03-19 | 2009-09-23 | 重庆市智翔铺道技术工程有限公司 | High viscosity bitumen and preparation method thereof |
| CN102337035A (en) * | 2011-08-12 | 2012-02-01 | 交通运输部公路科学研究所 | Waste plastic modified asphalt and preparation method thereof |
-
2014
- 2014-11-23 CN CN201410672765.XA patent/CN104479372A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441005A (en) * | 2003-03-31 | 2003-09-10 | 武汉理工大学 | Asphalt modified with desulfurized rubber powder |
| CN1635023A (en) * | 2003-12-25 | 2005-07-06 | 中国石油化工股份有限公司 | Asphalt modified masterbatch and method for preparation |
| CN101104741A (en) * | 2007-08-15 | 2008-01-16 | 中国海洋石油总公司 | Polymer modified asphalt and producing method thereof |
| CN101538408A (en) * | 2008-03-19 | 2009-09-23 | 重庆市智翔铺道技术工程有限公司 | High viscosity bitumen and preparation method thereof |
| CN102337035A (en) * | 2011-08-12 | 2012-02-01 | 交通运输部公路科学研究所 | Waste plastic modified asphalt and preparation method thereof |
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Application publication date: 20150401 |