CN101824173B - Microwave modified rubber powder of waste tire and preparation method thereof - Google Patents
Microwave modified rubber powder of waste tire and preparation method thereof Download PDFInfo
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- CN101824173B CN101824173B CN2010101325727A CN201010132572A CN101824173B CN 101824173 B CN101824173 B CN 101824173B CN 2010101325727 A CN2010101325727 A CN 2010101325727A CN 201010132572 A CN201010132572 A CN 201010132572A CN 101824173 B CN101824173 B CN 101824173B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention provides microwave modified rubber powder of a waste tire and a preparation method of the modified rubber powder. The method comprises the following steps: heating 2-14 parts by weight of heavy distillate to 90-130 DEG C, and maintaining the temperature stable; adding 84-97.8 parts by weight of rubber powder of the waste tire and 0.2-2 part(s) by weight of additive into the mixture, and mixing well; and heating the mixture through microwave irradiation, thereby obtaining the microwave modified rubber powder of the waste tire. The invention adopts the rubber powder of the waste tire as the raw material, and solves the problem of over high temperature in modification of the rubber powder of the waste tire through microwave desulfurization under the effect of the additive and the heavy distillate, thereby preventing the rubber powder from excessively aging and agglomeration during microwave desulfurization. The invention also realizes the desulfurization and recycling of the rubber powder of the waste tire, thereby not only saving the cost of the rubber powder, but also reducing the environmental pollution. In addition, since only microwave heating is needed, the invention has the advantages of simple process and high practicality.
Description
Technical field
The present invention relates to a kind of waste-tyre rubber-powder, particularly a kind of waste-tyre rubber-powder with microwave modification the invention still further relates to the preparation method of this waste-tyre rubber-powder with microwave modification.
Background technology
The burden of China's junked tire with every year about 6,500 ten thousand make us surprised speed increment, will reach 200,000,000 at present, and recovery utilization rate has only 30%.China is a rubber applications big country, and the year consumption of rubber ranks first in the world.And meanwhile, China is again the country of a rubber sources serious lack, and 60% of year consumption all needs import, and does not have the method for basic solution in the short period of time.Therefore the regenerated using of waste rubber goods has quite positive meaning.2006, Chinese rubber powder output reached 300,000 tons, has increased by 50% than the last year.Though compare with the tire output of quick growth; Though shoddy of China and rubber powder have replenished a part of rubber sources; But China remains the big tree elastomer of the first in the world importer for many years; Tree elastomer dependence on import more than 70%, rubber industry safety and even national security have received serious challenge.Therefore, China presses for from tire demand big country and moves towards tire recycle power.
Application number is that 200710008844.0 patent document discloses the method that a kind of microwave exposure prepares shoddy: with the waste old material pulverize waste rubber powder, cross the 5-200 mesh sieve; Waste rubber powder is considered to be worth doing and impurity with the electromagnetic method de-iron; With the microwave desulfurization jar of packing into of the waste rubber powder behind de-iron bits and the impurity, the adding RX is pressed mass ratio, waste rubber powder: RX=100: 0-15; The microwave heating desulfurization, 140～300 ℃ of Heating temperatures; Desulfurization is cooled to below 150 ℃ after accomplishing, and roller is produced sheet.This method requires desulfurization temperature up to 230 ℃ usually, and for lower boiling RX, the microwave exposure system needs pressurized vessel, and this preparation to equipment requires very high, and energy consumption strengthens simultaneously.The comparatively general way of method of microwave current irradiation rubber powder modified is with rubber powder microwave exposure modification under air atmosphere, and the modified glue powder surface properties of preparation is difficult to control like this, and rubber powder was aging severe after system temperature was higher than 100 ℃, poor-performing.And microwave exposure rubber powder under the air atmosphere, although technology is simple, the dusty gas quantity discharged is big, ground rubber is of poor quality.
Summary of the invention
The objective of the invention is to above-mentioned deficiency provide a kind of lower-cost, preparation technology is simple, and can not wear out the caking the waste-tyre rubber-powder with microwave modification.
Another object of the present invention provides the preparation method of this waste-tyre rubber-powder with microwave modification.
A kind of waste-tyre rubber-powder with microwave modification, it is mixed with by the following raw materials in parts by weight number and forms: waste-tyre rubber-powder 84-97.8 part, heavy distillate 2-14 part, auxiliary agent 0.2-2 part.
The particle diameter of said waste-tyre rubber-powder is the 5-100 order.
3. the waste-tyre rubber-powder with microwave modification according to claim 1 is characterized in that: the particle diameter of said waste-tyre rubber-powder is the 10-40 order.
Said auxiliary agent is one or more the mixture in sulphur, the agent of shortization of rubber.
Said heavy distillate is a kind of in long residuum, fluid catalytic cracking decant oil or the lubricating oil.
A kind of preparation method of the waste-tyre rubber-powder with microwave modification, its step comprises:
1) be that holding temperature was stable after the heavy distillate of 2-14 part was heated to 90-130 ℃ with parts by weight;
2) adding parts by weight in the mixture in step 1) is that the waste-tyre rubber-powder and parts by weight of 84-97.8 part are the auxiliary agent of 0.2-2 part, mixes then;
3) with step 2) in mixture promptly obtain waste-tyre rubber-powder in microwave exposure heating with microwave modification.
The particle diameter of said waste-tyre rubber-powder is the 5-100 order; Said auxiliary agent is one or more the mixture in sulphur, the agent of shortization of rubber; Said heavy distillate is a kind of in long residuum, fluid catalytic cracking decant oil or the lubricating oil.
Mixture temperature is controlled at 150-180 ℃ in the said step 3).
Microwave frequency is 915 or 2450MHz in the said step 3).
Microwave irradiation time is 3-10 minute in the said step 3).
The present invention is a raw material with the waste-tyre rubber-powder, is aided with the effect of auxiliary agent and heavy distillate, has solved the too high problem of temperature in the process of microwave desulfurization modified waste tire glue powder, thereby has prevented rubber powder overaging and the caking in the microwave desulfurization process.The present invention makes the waste-tyre rubber-powder can the desulfurization regeneration recycle, not only can save the cost of rubber powder, and can reduce environmental pollution.The present invention only needs microwave heating to get final product, and technology is simple, has very strong practicality.
Embodiment
Below in conjunction with specific embodiment the present invention is described:
Embodiment 1
It is stable that parts by weight are that 14 parts heavy distillate is heated to 90 ℃ and holding temperature, and said heavy distillate is a long residuum.Adding particle diameter then is that 5 order parts by weight are that 84 parts waste-tyre rubber-powder, the auxiliary agent sulphur that parts by weight are 2 parts mix.Be effect 3 minutes under the microwave exposure of 915MHz in microwave frequency with said mixture again, and the material system temperature is controlled at 180 ℃, promptly obtains waste-tyre rubber-powder sample 1 with microwave modification.
Embodiment 2
It is stable that parts by weight are that 8 parts heavy distillate is heated to 130 ℃ and holding temperature, and said heavy distillate is a fluid catalytic cracking decant oil.Adding particle diameter then is that 20 order parts by weight are that 91.6 parts waste-tyre rubber-powder, the auxiliary agent di-mercaptobenzothiazolby that parts by weight are 0.4 part mix.Be effect 10 minutes under the microwave exposure of 915MHz in microwave frequency with said mixture again, and the material system temperature is controlled at 170, promptly obtains waste-tyre rubber-powder sample 2 with microwave modification.
Embodiment 3
With parts by weight be 7 parts heavy distillate be heated to 100 and holding temperature stable, said heavy distillate be the lubricating oil from reduced pressure distillate production.Adding particle diameter then is that 40 order parts by weight are that 92.2 parts waste-tyre rubber-powder, the auxiliary agent polyalkylbenzene phenol disulphide that parts by weight are 0.8 part mix.Be effect 5 minutes under the microwave exposure of 915MH z in microwave frequency with said mixture again, and the material system temperature is controlled at 180 ℃, promptly obtains waste-tyre rubber-powder sample 3 with microwave modification.
Embodiment 4
It is stable that parts by weight are that 8 parts heavy distillate is heated to 110 ℃ and holding temperature, and said heavy distillate is that oil is extracted in furfural treatment out.Adding particle diameter then is that 60 order parts by weight are that 90 parts waste-tyre rubber-powder, the auxiliary agent triethylene tetramine that parts by weight are 1 part mix.Be effect 6 minutes under the microwave exposure of 2450MHz in microwave frequency with said mixture again, and the material system temperature is controlled at 160 ℃, obtains waste-tyre rubber-powder sample 4 with microwave modification.
Embodiment 5
It is stable that parts by weight are that 2 parts heavy distillate is heated to 120 ℃ and holding temperature, and said heavy distillate is that phenol treating is extracted oil out.Adding particle diameter then is that 100 order parts by weight are that 97.8 parts waste-tyre rubber-powder, the auxiliary agent thiuram disulphide that parts by weight are 0.2 part mix.Be effect 5 minutes under the microwave exposure of 2450MHz in microwave frequency with said mixture again, and the material system temperature is controlled at 150 ℃, promptly obtains waste-tyre rubber-powder sample 5 with microwave modification.
Embodiment 6
It is stable that parts by weight are that 11.4 parts heavy distillate is heated to 100 ℃ and holding temperature, and said heavy distillate is the refining oil of extracting out of N-Methyl pyrrolidone.Adding particle diameter then is that 20 order parts by weight are that 88 parts waste-tyre rubber-powder, the auxiliary agent sulphenamide that parts by weight are 0.6 part mix.Be effect 5 minutes under the microwave exposure of 2450MHz in microwave frequency with said mixture again, and the material system temperature is controlled at 160 ℃, promptly obtains waste-tyre rubber-powder sample 6 with microwave modification.
Embodiment 7
It is stable that parts by weight are that 11.4 parts heavy distillate is heated to 100 ℃ and holding temperature, and said heavy distillate is that oil is extracted in furfural treatment out.Adding particle diameter then is that 20 order parts by weight are that 88 parts waste-tyre rubber-powder, the auxiliary agent that parts by weight are 0.6 part mix, and said auxiliary agent is that parts by weight are the sulphur mixture that 0.6 part sulphenamide and parts by weight are 0.4 part.Be effect 5 minutes under the microwave exposure of 915MHz in microwave frequency with said mixture again, and the material system temperature is controlled at 180 ℃, promptly obtains waste-tyre rubber-powder sample 7 with microwave modification.
The waste-tyre rubber-powder sample 1-7 with microwave modification in the foregoing description cooperated with tree elastomer make an experiment; Measure the performance with the waste-tyre rubber-powder of microwave modification according to standard GB/T 13460-2008, the pavement performance of the modifying asphalt that records is as shown in table 1.
Wherein the performance of tree elastomer is: tensile strength 23.5Mpa; Elongation rate of tensile failure 1238%; Tear fracture intensity 115N/m.
| Modified glue powder | Tensile strength Mpa | Elongation rate of tensile failure % | Tear fracture intensity N/m | The natural gum amount |
| Sample 1 | 15.2 | 802 | 81 | 0 |
| Sample 1 | 16.8 | 931 | 91 | 10 |
| Sample 1 | 19.2 | 1062 | 99 | 20 |
| Sample 1 | 21.3 | 1193 | 109 | 30 |
| Sample 2 | 17.1 | 889 | 88 | 0 |
| Sample 3 | 15.9 | 853 | 84 | 0 |
| Sample 4 | 17.9 | 921 | 95 | 0 |
| Sample 5 | 17.5 | 917 | 89 | 0 |
| Sample 6 | 17.7 | 904 | 91 | 0 |
| Sample 7 | 17.7 | 914 | 93 | 0 |
| Sample 7 | 18.8 | 961 | 94 | 10 |
| Sample 7 | 20.2 | 1102 | 108 | 20 |
| Sample 7 | 22.3 | 1213 | 113 | 30 |
The performance that table 1 cooperates with tree elastomer with the waste-tyre rubber-powder of microwave modification
Can know by last table; The key technical indexes of above-mentioned waste-tyre rubber-powder with microwave modification has reached among standard GB/T 13460-2008 the superfine requirement to whole tire reclaim rubber fully; And if were aided with a spot of tree elastomer, the regenerated rubber performance that obtains would be better.Therefore, the present invention can be applied to actual production fully with the waste-tyre rubber-powder of microwave modification, has very strong practicality.
Claims (2)
1. waste-tyre rubber-powder with microwave modification, it is mixed with by the following raw materials in parts by weight number and forms: waste-tyre rubber-powder 84-97.8 part, heavy distillate 2-14 part, auxiliary agent 0.2-2 part, the particle diameter of wherein said waste-tyre rubber-powder is the 10-40 order; Said auxiliary agent is one or more the mixture in sulphur, di-mercaptobenzothiazolby, polyalkylbenzene phenol disulphide, triethylene tetramine, thiuram disulphide, the sulphenamide; Said heavy distillate is a kind of in long residuum, fluid catalytic cracking decant oil or the lubricating oil.
2. preparation method with the waste-tyre rubber-powder of microwave modification, its step comprises:
1) be that holding temperature was stable after the heavy distillate of 2-14 part was heated to 90-130 ℃ with parts by weight; Said heavy distillate is a kind of in long residuum, fluid catalytic cracking decant oil or the lubricating oil;
2) adding parts by weight in the heavy distillate in step 1) is that the waste-tyre rubber-powder and parts by weight of 84-97.8 part are the auxiliary agent of 0.2-2 part, mixes then; The particle diameter of said waste-tyre rubber-powder is the 5-100 order; Said auxiliary agent is one or more the mixture in sulphur, di-mercaptobenzothiazolby, polyalkylbenzene phenol disulphide, triethylene tetramine, thiuram disulphide, the sulphenamide;
3) with step 2) in mixture microwave frequency be 915 or the microwave exposure of 2450MHz under the waste-tyre rubber-powder that promptly obtained with microwave modification in 3-10 minute of heating irradiation, temperature is controlled at 150-180 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101325727A CN101824173B (en) | 2010-03-23 | 2010-03-23 | Microwave modified rubber powder of waste tire and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101325727A CN101824173B (en) | 2010-03-23 | 2010-03-23 | Microwave modified rubber powder of waste tire and preparation method thereof |
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| CN101824173A CN101824173A (en) | 2010-09-08 |
| CN101824173B true CN101824173B (en) | 2012-09-05 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127246B (en) * | 2010-12-13 | 2013-02-06 | 四川大学 | Method for removing miscellaneous elements from waste high polymer material by using microwave irradiation |
| CN102815879B (en) * | 2012-08-03 | 2014-03-26 | 绵阳锐洋新材料技术开发有限公司 | Modification method of tire rubber powder, and application thereof in self-insulation partition wall building blocks |
| CN104723476B (en) * | 2013-12-23 | 2017-08-25 | 宁夏恒源晟达橡胶制品有限公司 | A kind of method that utilization junked tire produces rubber powder |
| CN104845292A (en) * | 2015-05-06 | 2015-08-19 | 安徽省佳艺休闲用品有限公司 | Inflaming-retarding plastic container |
| CN105802269A (en) * | 2016-06-15 | 2016-07-27 | 李孟平 | Waste tire recycling method |
| CN107868272A (en) * | 2017-11-22 | 2018-04-03 | 荣成市华诚橡胶有限公司 | A kind of method for reclaiming waste old |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103350A (en) * | 1993-12-02 | 1995-06-07 | 梅州市梅江嘉应橡塑厂 | Method for desulfuration regeneration of waste rubber |
| CN1908042A (en) * | 2006-08-29 | 2007-02-07 | 马如琦 | Desulfurization method of rubber and apparatus thereof |
| CN101045799A (en) * | 2007-04-17 | 2007-10-03 | 福建省晋江市陈埭江头茂泰橡塑厂 | Preparation method of reclaimed rubber using microwave desulfurization method |
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- 2010-03-23 CN CN2010101325727A patent/CN101824173B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103350A (en) * | 1993-12-02 | 1995-06-07 | 梅州市梅江嘉应橡塑厂 | Method for desulfuration regeneration of waste rubber |
| CN1908042A (en) * | 2006-08-29 | 2007-02-07 | 马如琦 | Desulfurization method of rubber and apparatus thereof |
| CN101045799A (en) * | 2007-04-17 | 2007-10-03 | 福建省晋江市陈埭江头茂泰橡塑厂 | Preparation method of reclaimed rubber using microwave desulfurization method |
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