CN102634217A - Asphalt modifier and preparation method thereof - Google Patents
Asphalt modifier and preparation method thereof Download PDFInfo
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- CN102634217A CN102634217A CN2012101295576A CN201210129557A CN102634217A CN 102634217 A CN102634217 A CN 102634217A CN 2012101295576 A CN2012101295576 A CN 2012101295576A CN 201210129557 A CN201210129557 A CN 201210129557A CN 102634217 A CN102634217 A CN 102634217A
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- asphalt modifier
- tween
- asphalt
- glue powder
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Abstract
The invention relates to asphalt modifier and a preparation method thereof, belonging to the field of chemical industry. The invention aims to provide an asphalt modifier which can improve the comprehensive perforamnce of asphalt. The asphalt modifier provided by the invention is prepared from the following components in part by weight: 0.1-0.5 part of mixed silane, 0.02-0.05 part of surfactant and 0.5-0.9 part of tire rubber powder, wherein the mixed silane is a liquid-solid mixture with liquidity obtained by wet dust collection in the synthesis process of methyl chlorosilane monomer.
Description
Technical field
The present invention relates to asphalt modifier and preparation method thereof, belong to chemical field.
Background technology
Mixed silanes is a kind of an organosilane monomer by product; It is owing to a kind of liquid-solid mixture that has flowability that adopts wet dedusting to obtain in the methyl chlorosilane monomer building-up process; The mixed silanes total release accounts for 2～5% of mix monomer massfraction greatly, and liquid-solid mass ratio is about 4: 1.Liquid phase mainly is a high boiling point organosilane liquid; Solid phase is mainly suspension silica flour, high-content copper and other metal; If this part material is exposed in the air; Will burn with (or) form strong acid mist and liquid, if therefore directly the discharging meeting environment is caused severe contamination, must carry out harmless treatment.Domesticly do not carry out systematic research for the mixed silanes harmless treatment, when monomer throughput was hanged down, the mixed silanes that is produced was just simply buried, and stayed the hidden danger on environmental protection and the safety.In recent years, along with the further expansion of monomer throughput, bury and can't deal with problems, the handling problem of mixed silanes has become the bottleneck of the Chinese organosilicon industrial development of restriction.
For solving safety and the environmental issue that mixed silanes causes, researcher is studied the harmless treatment of mixed silanes.At present, hydrolysis method is mainly adopted in the mixed silanes harmless treatment, produces a large amount of low-concentration hcls and polysiloxane mixture solid.The Hydrogen chloride quality is not high, and subsequent disposal will consume great amount of manpower and material resources, financial resources, and the polysiloxane mixture solid can be carried copper, but still can produce a large amount of liquid contaminations after carrying copper.Therefore, hydrolysis method processing mixed silanes is a kind of uneconomical, halfway treatment process.The screenings harmless treatment can also be carried out in phosphoric acid or sulfuric acid, but only is in the lab scale conceptual phase, can produce the problem of waste liquid, waste residue equally, can not fundamentally solve the mixed silanes innocuity treatment problem.
The automobile industry development of China is rapid, and national automobile pollution was 3,300 ten thousand in 2005, and the junked tire generation is about 1.2 hundred million, and increases with annual 12% speed, reaches 2.21 hundred million by 2010.Junked tire conventional process mode is stacking, landfill, burning etc., has problems such as contaminate environment, land occupation resource, difficult treatment.
Summary of the invention
First technical problem to be solved by this invention provides a kind of asphalt modifier, and it can improve the bituminous over-all properties.
Asphalt modifier of the present invention is prepared from following components in weight percentage: 0.5～0.9 part of 0.1～0.5 part of mixed silanes, 0.02～0.05 part in tensio-active agent and tire glue powder; Wherein, described mixed silanes is a kind of liquid-solid mixture that has flowability that adopts wet dedusting to obtain in the methyl chlorosilane monomer building-up process.
Wherein, the tensio-active agent described in the present invention can be the tensio-active agent of routine, is preferably in Tween-40, Tween-60, the Tween-65 at least a.
Further, in order to reduce cost, also in order to recycle junked tire, avoid environmental pollution, tire glue powder of the present invention is preferably made through pulverizing by junked tire.
Second technical problem to be solved by this invention provides a kind of method for preparing asphalt modifier, and the asphalt modifier of this method preparation can improve the bituminous over-all properties.
The method that the present invention prepares asphalt modifier comprises the steps:
A, with mixed silanes, tensio-active agent, tire glue powder by weight ratio 0.1～0.5: 0.02～0.05: 0.5～0.9 mixing;
Wherein, described mixed silanes is a kind of liquid-solid mixture that has flowability that adopts wet dedusting to obtain in the methyl chlorosilane monomer building-up process;
B, stir and be heated to 130～220 ℃, keep 130～220 ℃ then and make its reaction 20～30min, cooling obtains asphalt modifier.
Wherein, the tensio-active agent described in the inventive method can be the tensio-active agent of routine, is preferably in Tween-40, Tween-60, the Tween-65 at least a.
Further, in order to reduce cost, also in order to recycle junked tire, avoid environmental pollution, the described tire glue powder of the inventive method is preferably made through pulverizing by junked tire.Further, for the ease of the preparation of asphalt modifier, the particle diameter of described tire glue powder is preferably 10～80 orders.
Wherein, the present invention prepares the method for asphalt modifier, preferably stirs and be heated to 180～200 ℃ in its b step, keeps 180～200 ℃ then and makes its reaction 20～30min.
The present invention also provides a kind of modifying asphalt, and it is prepared from asphalt modification above-mentioned asphalt modifier.
The present invention organically combines mixed silanes with tire glue powder, in reaction process, does not have by product to produce, and can not cause secondary pollution to environment, has fundamentally solved the innocuity treatment problem of mixed silanes and tire glue powder; And products obtained therefrom improves the over-all properties of asphalt as the properties-correcting agent of asphalt; Particularly can improve the endurance quality and the work-ing life on the high-temperature stability of asphalt, anti-rut performance and anti-fatigue performance and road surface, widen the Application of asphalt mixture field and the market space.The present invention has broad application prospects for the processing of mixed silanes and junked tire provides a kind of new method.
Embodiment
Asphalt modifier of the present invention is prepared from following components in weight percentage: 0.5～0.9 part of 0.1～0.5 part of mixed silanes, 0.02～0.05 part in tensio-active agent and tire glue powder; Wherein, described mixed silanes is a kind of liquid-solid mixture that has flowability that adopts wet dedusting to obtain in the methyl chlorosilane monomer building-up process.
Wherein, the tensio-active agent described in the present invention can be the tensio-active agent of routine, is preferably in Tween-40, Tween-60, the Tween-65 at least a.
Further, in order to reduce cost, also in order to recycle junked tire, avoid environmental pollution, tire glue powder of the present invention is preferably made through pulverizing by junked tire.
The method that the present invention prepares asphalt modifier comprises the steps:
A, with mixed silanes, tensio-active agent, tire glue powder by weight ratio 0.1～0.5: 0.02～0.05: 0.5～0.9 mixing;
Wherein, described mixed silanes is a kind of liquid-solid mixture that has flowability that adopts wet dedusting to obtain in the methyl chlorosilane monomer building-up process;
B, stir and be heated to 130～220 ℃, keep 130～220 ℃ then and make its reaction 20～30min, cooling obtains asphalt modifier.
Wherein, the tensio-active agent described in the inventive method can be the tensio-active agent of routine, is preferably in Tween-40, Tween-60, the Tween-65 at least a.
Further, in order to reduce cost, also in order to recycle junked tire, avoid environmental pollution, the described tire glue powder of the inventive method is preferably made through pulverizing by junked tire.Further, for the ease of the preparation of asphalt modifier, the particle diameter of described tire glue powder is preferably 10～80 orders.
Wherein, the present invention prepares the method for asphalt modifier, preferably stirs and be heated to 180～200 ℃ in its b step, keeps 180～200 ℃ then and makes its reaction 20～30min.
The present invention also provides a kind of modifying asphalt, and it is prepared from asphalt modification above-mentioned asphalt modifier.
Do further description below in conjunction with the embodiment specific embodiments of the invention, therefore do not limit the present invention among the described scope of embodiments.
The preparation of embodiment 1 asphalt modifier of the present invention
(mixed silanes is a kind of liquid-solid mixture that has flowability that adopts wet dedusting to obtain in the methyl chlorosilane monomer building-up process to get mixed silanes 100.0g; Down together), tensio-active agent Tween-40 2.0g, particle diameter are 10～80 purpose tire glue powder 900.0g; Mixing stirs and is heated to 130～220 ℃, keeps 130～220 ℃ then and makes its reaction 20～30min; Cooling discharge obtains asphalt modifier.
The preparation of embodiment 2 asphalt modifiers of the present invention
Getting mixed silanes 300.0g, tensio-active agent Tween-60 4.0g, particle diameter is 10～80 purpose tire glue powder 700.0g; Mixing stirs and is heated to 130～220 ℃, keeps 130～220 ℃ then and makes its reaction 20～30min; Cooling discharge obtains asphalt modifier.
The preparation of embodiment 3 asphalt modifiers of the present invention
Getting mixed silanes 500.0g, tensio-active agent Tween-65 5.0g, particle diameter is 10～80 purpose tire glue powder 500.0g; Mixing stirs and is heated to 130～220 ℃, keeps 130～220 ℃ then and makes its reaction 20～30min; Cooling discharge obtains asphalt modifier.
Respectively the asphalt modifier of embodiment 1-3 preparation is pressed in the adding 70# matrix pitch of 2wt%, mixing is warmed up to 180 ℃ then, with speed stirring and the sustained reaction 30min of 500r/min; When being cooled to 150 ℃, material is changed in the colloidal mill, grind 10min, cooling discharge obtains adopting the asphaltic products. behind the modifier modification of the present invention, and measures its performance.The result is as shown in table 1.
The The performance test results of table 1 modifying asphalt
Annotate: the 70# matrix pitch can't be measured 5 ℃ of ductilities.
Claims (9)
1. asphalt modifier is characterized in that being prepared from following components in weight percentage: 0.5～0.9 part of 0.1～0.5 part of mixed silanes, 0.02～0.05 part in tensio-active agent and tire glue powder;
Wherein, described mixed silanes is a kind of liquid-solid mixture that has flowability that adopts wet dedusting to obtain in the methyl chlorosilane monomer building-up process.
2. asphalt modifier according to claim 1 is characterized in that: described tensio-active agent is at least a in Tween-40, Tween-60, the Tween-65.
3. asphalt modifier according to claim 1 and 2 is characterized in that: described tire glue powder is made through pulverizing by junked tire.
4. the method for preparing asphalt modifier is characterized in that comprising the steps:
A, with mixed silanes, tensio-active agent, tire glue powder by weight ratio 0.1～0.5: 0.02～0.05: 0.5～0.9 mixing;
Wherein, described mixed silanes is a kind of liquid-solid mixture that has flowability that adopts wet dedusting to obtain in the methyl chlorosilane monomer building-up process;
B, stir and be heated to 130～220 ℃, keep 130～220 ℃ then and make its reaction 20～30min, cooling obtains asphalt modifier.
5. the method for preparing asphalt modifier according to claim 4 is characterized in that: described tensio-active agent is at least a in Tween-40, Tween-60, the Tween-65.
6. according to claim 4 or the 5 described methods that prepare asphalt modifier, it is characterized in that: described tire glue powder is made through pulverizing by junked tire.
7. the method for preparing asphalt modifier according to claim 6 is characterized in that: the particle diameter of described tire glue powder is 10～80 orders.
8. according to each described method for preparing asphalt modifier of claim 4～7, it is characterized in that: stir in the b step and be heated to 180～200 ℃, keep 180～200 ℃ then and make its reaction 20～30min.
9. modifying asphalt is characterized in that: each described asphalt modifier of claim 1～3 asphalt modification is prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101295576A CN102634217A (en) | 2012-04-27 | 2012-04-27 | Asphalt modifier and preparation method thereof |
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| CN2012101295576A CN102634217A (en) | 2012-04-27 | 2012-04-27 | Asphalt modifier and preparation method thereof |
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| CN102634217A true CN102634217A (en) | 2012-08-15 |
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| CN2012101295576A Pending CN102634217A (en) | 2012-04-27 | 2012-04-27 | Asphalt modifier and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194366A (en) * | 2014-09-12 | 2014-12-10 | 江苏苏博特新材料股份有限公司 | Low-temperature-resistant high-modulus asphalt modifier and preparation method thereof |
| CN104529236A (en) * | 2014-12-19 | 2015-04-22 | 重庆鹏方交通科技股份有限公司 | Anti-rut agent and preparation method thereof |
| CN111675914A (en) * | 2020-06-29 | 2020-09-18 | 甘禄祥 | Rubber asphalt and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170733A (en) * | 1996-07-11 | 1998-01-21 | 梁双库 | Asphalt modifying agent |
| US5936015A (en) * | 1998-10-16 | 1999-08-10 | Creanova Inc. | Rubber-modified asphalt paving binder |
| US20110046273A1 (en) * | 2009-08-18 | 2011-02-24 | Heritage Environmental Services, Llc | Method for preparing silicon-sulfur compounds and their use in bitiminous compositions |
| CN102382480A (en) * | 2011-12-15 | 2012-03-21 | 周其强 | Application of organosilicon residues to preparation of synthetic rubber asphalt |
-
2012
- 2012-04-27 CN CN2012101295576A patent/CN102634217A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170733A (en) * | 1996-07-11 | 1998-01-21 | 梁双库 | Asphalt modifying agent |
| US5936015A (en) * | 1998-10-16 | 1999-08-10 | Creanova Inc. | Rubber-modified asphalt paving binder |
| US20110046273A1 (en) * | 2009-08-18 | 2011-02-24 | Heritage Environmental Services, Llc | Method for preparing silicon-sulfur compounds and their use in bitiminous compositions |
| CN102382480A (en) * | 2011-12-15 | 2012-03-21 | 周其强 | Application of organosilicon residues to preparation of synthetic rubber asphalt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194366A (en) * | 2014-09-12 | 2014-12-10 | 江苏苏博特新材料股份有限公司 | Low-temperature-resistant high-modulus asphalt modifier and preparation method thereof |
| CN104529236A (en) * | 2014-12-19 | 2015-04-22 | 重庆鹏方交通科技股份有限公司 | Anti-rut agent and preparation method thereof |
| CN104529236B (en) * | 2014-12-19 | 2017-06-23 | 重庆鹏方交通科技股份有限公司 | A kind of preparation method of anti-rut agent |
| CN111675914A (en) * | 2020-06-29 | 2020-09-18 | 甘禄祥 | Rubber asphalt and preparation method thereof |
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Application publication date: 20120815 |