CN103589174B - A kind of method utilizing waste-tyre rubber-powder to prepare road asphalt - Google Patents
A kind of method utilizing waste-tyre rubber-powder to prepare road asphalt Download PDFInfo
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- CN103589174B CN103589174B CN201310417564.0A CN201310417564A CN103589174B CN 103589174 B CN103589174 B CN 103589174B CN 201310417564 A CN201310417564 A CN 201310417564A CN 103589174 B CN103589174 B CN 103589174B
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Abstract
The present invention relates to a kind of method utilizing junked tire powder to prepare road asphalt.The inventive method comprises the following steps: takes 100 200 mesh rubber powders and is placed in agitator, stirring, weigh the maleic anhydride of 0.02% 1.0% rubber powder quality, it is rapidly added agitator with water dissolution, 100 120 DEG C of stirring 0.5 1h, after add methacrylic acid 2 hydroxy methacrylate of 0.01% 2.0% rubber powder quality, continue stirring, after drying surface modification rubber powder；By matrix pitch heating and melting, it is stirred continuously the rubber powder that lower addition pretreatment obtains, through rustless steel colloid mill, is incubated 120 150 DEG C, grow 30min.Composite asphalt substantially reduces relative to matrix pitch needle penetration, and softening point improves, and 5 DEG C of extensibility of low temperature significantly improve, and modified pitch stability more more preferable than matrix pitch oil and low-temperature cracking-resistance are described, storage stability also increases.
Description
Technical field
A kind of method that the present invention relates to junked tire recycling, particularly relates to one and utilizes junked tire preparation essence
The new technology of thin rubber powder, belongs to junked tire and recycles field.
Background technology
Along with developing rapidly of auto industry and road haulage, the junked tire situation that pile up like a mountain is increasingly severe.
The junked tire that pile up like a mountain does not only have obvious pollution problem, but also there is serious disaster hidden-trouble.More serious than fire
Danger be polluted underground water source, once polluted underground water source, by the existence of all for entail dangers to biologies.Therefore, EU member country
By 2006 by total ban landfill disposal junked tire.Many international major companies, national governments and local government are all urgently
Seek to solve the method that the most serious junked tire processes problem.Since the seventies, industrially developed country takes turns waste and old
The secondary of tire utilizes aspect to have a great development, and especially since the nineties, has in succession worked out and has utilized junked tire to prepare glue
Powder or the technique of fine glue powder, and it is widely used in the necks such as construction material, rubber, road asphalt, polymer composite
Territory.The rubber powder Colophonium prepared by junked tire prepares rubber asphalt, more more durable and inexpensive than inside plain asphalt, it is also possible to fall
Low noise, improves wearability and the tolerance to cold of road, can extend pavement life, and shorten skidding distance.Thus, waste and old take turns
The popularization and application of tire rubber powder modified asphalt have important engineering significance and economy, environmental protection and social benefit.
But appts of modified asphalt by utilizing waste tyre rubber powder remains in problems such as storage stabilities, being better than shoddy is the glue through over cure
Powder, is directly difficult to swelling and dispersion in Colophonium, and the storage stability therefore causing rubber powder modified asphalt is poor, therefore, crucial
It has a problem in that and how to make uniform and stable being dispersed in Colophonium of scrap rubber.US6387965 utilizes shoddy and organic solvent
Or aromatic naphtha stirs at 150-300 DEG C and makes it degrade, then mix Colophonium, but its complex process, relatively costly, and make in a large number
With organic solvent, environment is caused certain pollution.By Polymer SBS (s-B-S in patent CN1528823
Copolymer) add high-load rubber powder and asphalt system, to increase the rubber content of modified pitch, but this technique contains due to rubber powder
Measuring too high, system viscosity is relatively big, has implemented certain difficulty, and has only increased rubber powder consumption, has the most fundamentally solved
The certainly problem of rubber powder dispersibility.
The present invention is for overcoming the problems referred to above, it is provided that a kind of method of rubber powder modified asphalt, i.e. solves junked tire and reclaims
Problem, can prepare again the rubber powder modified asphalt that storage stability is good.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that one utilizes the modified road of waste-tyre rubber-powder preparation
The method of road Colophonium, the method storage stability is good, is suitable to produce in enormous quantities.The present invention produces and comprises the following steps:
(1) taking 100-200 mesh rubber powder to be placed in agitator, mixing speed is 400-500r/min.Weigh 0.02%-1.0%
The maleic anhydride of rubber powder quality, is rapidly added agitator with water dissolution, 100-120 DEG C of stirring 0.5-1h, after add 0.01%-2.0%
The 2-hydroxyethyl methacrylate of rubber powder quality, continues stirring 0.5-1h.Surface modification rubber powder is obtained after drying；
(2) by matrix pitch heating and melting at 110-150 DEG C, it is stirred continuously down and is gradually added into pretreatment in step (1)
The rubber powder obtained, mixing speed is 600-800 r/min, stirs 1-2h；
(3) by the product in step (2) through rustless steel colloid mill, it is incubated 120-150 DEG C, grows 30min, i.e. prepare useless
Tire glue powder composite modified asphalt.
The above rubber powder is to be obtained by screening through freezing is broken by junked tire；
Described matrix pitch is commercially available 90# Colophonium；
Rubber powder consumption is the 10%-30% of asphalt quality；
The needle penetration of basis bitumen and modified bitumen, softening point and ductility are respectively according to GB/T4509, GB/T4507 and GB/
T4508 method measures, and the storage stability of modified pitch is characterized by isolation experiment, and the difference of top and the bottom softening point is the least
The best.The performance indications of basis bitumen and modified bitumen are as follows:
As can be seen from the table, composite asphalt substantially reduces relative to matrix pitch needle penetration, and softening point improves, low
Temperature (5 DEG C) extensibility significantly improves, and illustrates that modified pitch, than matrix pitch oil preferably stability and low-temperature cracking-resistance, stores steady
Qualitative also increase.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described, but embodiment is not intended to the present invention.
Embodiment 1
(1) taking 100 mesh rubber powders to be placed in agitator, mixing speed is 400r/min.Weigh the Malaysia of 0.02% rubber powder quality
Anhydride, is rapidly added agitator with water dissolution, 100 DEG C of stirring 1h, after add the methacrylic acid 2-hydroxyl second of 0.01% rubber powder quality
Ester, continues stirring 1h.Surface modification rubber powder is obtained after drying；
(2) by matrix pitch heating and melting at 110 DEG C, it is stirred continuously down and is gradually added into pretreatment in step (1) and obtains
Rubber powder, mixing speed is 600r/min, stir 2h；
(3) by the product in step (2) through rustless steel colloid mill, it is incubated 120 DEG C, grows 50min, i.e. prepare damaged tire
Rubber powder composite modified asphalt.
Embodiment 2
(1) taking 150 mesh rubber powders to be placed in agitator, mixing speed is 450r/min.Weigh the Malaysia of 0.05% rubber powder quality
Anhydride, is rapidly added agitator with water dissolution, 110 DEG C of stirring 0.8h, after add the methacrylic acid 2-hydroxyl of 1.0% rubber powder quality
Ethyl ester, continues stirring 0.8h.Surface modification rubber powder is obtained after drying；
(2) by matrix pitch heating and melting at 130 DEG C, it is stirred continuously down and is gradually added into pretreatment in step (1) and obtains
Rubber powder, mixing speed is 700 r/min, stir 1.5h；
(3) by the product in step (2) through rustless steel colloid mill, it is incubated 140 DEG C, grows 40min, i.e. prepare damaged tire
Rubber powder composite modified asphalt.
Embodiment 3
(1) taking 200 mesh rubber powders to be placed in agitator, mixing speed is 500r/min.Weigh the Malaysia of 1.0% rubber powder quality
Anhydride, is rapidly added agitator with water dissolution, 120 DEG C of stirring 0.5h, after add the methacrylic acid 2-hydroxyl of 2.0% rubber powder quality
Ethyl ester, continues stirring 0.5h.Surface modification rubber powder is obtained after drying；
(2) by matrix pitch heating and melting at 150 DEG C, it is stirred continuously down and is gradually added into pretreatment in step (1) and obtains
Rubber powder, mixing speed is 800 r/min, stir 1h；
(3) by the product in step (2) through rustless steel colloid mill, it is incubated 150 DEG C, grows 30min, i.e. prepare damaged tire
Rubber powder composite modified asphalt.
Claims (3)
1. one kind utilizes the method that waste-tyre rubber-powder prepares road asphalt, it is characterised in that: concretely comprise the following steps:
(1) taking 100-200 mesh rubber powder to be placed in agitator, mixing speed is 400-500r/min,
Weigh the maleic anhydride of 0.02%-1.0% rubber powder quality, be rapidly added agitator, 100-120 DEG C of stirring 5-with water dissolution
1h, after add the methacrylic acid-2-hydroxy methacrylate of 0.01%-2. 0% rubber powder quality, continue stirring 0.5-1h, after drying surface
Modified glue powder；
(2) by matrix pitch heating and melting at 110-150 DEG C, it is stirred continuously down and is gradually added into pretreatment in step (1) and obtains
Rubber powder, mixing speed is 600-800 r/min, stir 1-2h；
(3) by the product in step (2) through rustless steel colloid mill, it is incubated 120-150 DEG C, grows 30min, i.e. prepare waste and old wheel
Tire rubber powder composite modified asphalt；Described rubber powder is to be obtained by screening through freezing is broken by junked tire；Described matrix pitch
For commercially available 90# Colophonium；The described 10%-30% that rubber powder consumption is asphalt quality.
2. one kind utilizes the method that waste-tyre rubber-powder prepares road asphalt, it is characterised in that: concretely comprise the following steps:
(1) taking 100 mesh rubber powders to be placed in agitator, mixing speed is 400r/min, weighs the maleic acid of 0.02% rubber powder quality
Acid anhydride, is rapidly added agitator with water dissolution, 100 DEG C stirring 1h, after add 0.01%
Methacrylic acid-2-the hydroxy methacrylate of rubber powder quality, continues stirring 1h, obtains surface modification rubber powder after drying；
(2) by matrix pitch heating and melting at 110 DEG C, it is stirred continuously down and is gradually added into the rubber that in step (1), pretreatment obtains
Rubber powder, mixing speed is 600r/min, stirs 2h；
(3) by the product in step (2) through rustless steel colloid mill, it is incubated 120 DEG C, grows 50min, i.e. prepare waste and old tyre rubber
Powder compound modified Colophonium；Described rubber powder is to be obtained by screening through freezing is broken by junked tire；Described matrix pitch is city
Sell 90# Colophonium；The described 10%-30% that rubber powder consumption is asphalt quality.
3. one kind utilizes the method that waste-tyre rubber-powder prepares road asphalt, it is characterised in that: concretely comprise the following steps:
(1) taking 150 mesh rubber powders to be placed in agitator, mixing speed is 450r/min, weighs the maleic acid of 0.05% rubber powder quality
Acid anhydride, is rapidly added agitator with water dissolution, 110 DEG C of stirring 0.8h, after add the methacrylic acid-2-hydroxyl of 1. 0% rubber powder quality
Ethyl ester, continues stirring 0.8h, obtains surface modification rubber powder after drying；
(2) by matrix pitch heating and melting at 130 DEG C, it is stirred continuously down and is gradually added into the rubber that in step (1), pretreatment obtains
Rubber powder, mixing speed is 700 r/min, stirs 1.5h；
(3) by the product in step (2) through rustless steel colloid mill, it is incubated 140 DEG C, grows 40min, i.e. prepare waste and old tyre rubber
Powder compound modified Colophonium；Described rubber powder is to be obtained by screening through freezing is broken by junked tire；Described matrix pitch is city
Sell 90# Colophonium；The described 10%-30% that rubber powder consumption is asphalt quality.
4. one kind utilizes the method that waste-tyre rubber-powder prepares road asphalt, it is characterised in that: concretely comprise the following steps:
(1) taking 200 mesh rubber powders to be placed in agitator, mixing speed is 500r/min, weighs the maleic anhydride of 1.0% rubber powder quality,
Be rapidly added agitator with water dissolution, 120 DEG C of stirring 0.5h, after add the methacrylic acid-2-hydroxy methacrylate of 2.0% rubber powder quality,
Continue stirring 0.5h, after drying, obtain surface modification rubber powder；
(2) by matrix pitch heating and melting at 150 DEG C, it is stirred continuously down and is gradually added into the rubber that in step (1), pretreatment obtains
Rubber powder, mixing speed is 800 r/min, stirs 1h；
(3) by the product in step (2) through rustless steel colloid mill, it is incubated 150 DEG C, grows 30min, i.e. prepare waste and old tyre rubber
Powder compound modified Colophonium；Described rubber powder is to be obtained by screening through freezing is broken by junked tire；Described matrix pitch is city
Sell 90# Colophonium；The described 10%-30% that rubber powder consumption is asphalt quality.
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| CN201310417564.0A CN103589174B (en) | 2013-09-14 | 2013-09-14 | A kind of method utilizing waste-tyre rubber-powder to prepare road asphalt |
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| CN103589174B true CN103589174B (en) | 2016-08-17 |
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| CN114213855B (en) * | 2021-12-27 | 2023-04-18 | 江苏宝利路面材料技术有限公司 | Warm-mix modified rubber asphalt and preparation method thereof |
| CN114806481B (en) * | 2022-05-13 | 2023-07-28 | 韦尔通科技股份有限公司 | Flame-retardant photo-moisture dual-curing polyurethane hot melt adhesive and preparation method thereof |
| CN114837023B (en) * | 2022-07-04 | 2022-09-30 | 石家庄铁道大学 | Scrap tire rubber powder modified composite foundation bed structure based on high-speed railway foundation reinforced layer |
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| CN1974621A (en) * | 2006-12-07 | 2007-06-06 | 武汉工程大学 | Modified rubber powder and its prepn and use |
| CN101143968A (en) * | 2006-09-15 | 2008-03-19 | 中国石油化工股份有限公司 | Waste rubber powder modified asphalt composition for increasing storage stability and preparation method thereof |
| CN101538409A (en) * | 2008-03-21 | 2009-09-23 | 北京化工大学 | Waste Crumb rubber modified asphalt and preparation method thereof |
| CN103275499A (en) * | 2013-05-24 | 2013-09-04 | 无锡市华明化工有限公司 | Modified asphalt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2006063606A1 (en) * | 2004-12-16 | 2006-06-22 | Pirelli & C. S.P.A. | Process for manufacturing a thermoplastic elastomeric material |
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| CN101143968A (en) * | 2006-09-15 | 2008-03-19 | 中国石油化工股份有限公司 | Waste rubber powder modified asphalt composition for increasing storage stability and preparation method thereof |
| CN1974621A (en) * | 2006-12-07 | 2007-06-06 | 武汉工程大学 | Modified rubber powder and its prepn and use |
| CN101538409A (en) * | 2008-03-21 | 2009-09-23 | 北京化工大学 | Waste Crumb rubber modified asphalt and preparation method thereof |
| CN103275499A (en) * | 2013-05-24 | 2013-09-04 | 无锡市华明化工有限公司 | Modified asphalt |
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Inventor after: Li Shufan Inventor after: Chen Xianlong Inventor after: Xiong Ying Inventor after: Ran Hua Inventor before: You Xiaoming Inventor before: Zhang Guodong Inventor before: Wang Xiantao Inventor before: Yan Yunfeng Inventor before: Wei Wenxiang |
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Effective date of registration: 20170405 Address after: Xishan District 650100 in Yunnan province Kunming City Shui Road No. 101 Liu Jia Ying District two building 1 floor office building 8 Room 805 Patentee after: Yunnan referendum Construction Group First Engineering Co., Ltd. Address before: 257335 Guangrao City, Dongying Province town of Rubber Industrial Park Patentee before: Shandong Yongtai Chemical Co., Ltd. |
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