CN103275369A - Method for preparing plasticized rubber powder - Google Patents

Method for preparing plasticized rubber powder Download PDF

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Publication number
CN103275369A
CN103275369A CN 201310243941 CN201310243941A CN103275369A CN 103275369 A CN103275369 A CN 103275369A CN 201310243941 CN201310243941 CN 201310243941 CN 201310243941 A CN201310243941 A CN 201310243941A CN 103275369 A CN103275369 A CN 103275369A
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CN
China
Prior art keywords
rubber powder
activator
preparation method
kind
rubber
Prior art date
Application number
CN 201310243941
Other languages
Chinese (zh)
Inventor
倪雪文
周洪
赵勇
施嘉华
Original Assignee
南通回力橡胶有限公司
江苏南回橡胶再生与利用技术研发有限公司
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Application filed by 南通回力橡胶有限公司, 江苏南回橡胶再生与利用技术研发有限公司 filed Critical 南通回力橡胶有限公司
Priority to CN 201310243941 priority Critical patent/CN103275369A/en
Publication of CN103275369A publication Critical patent/CN103275369A/en

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Abstract

The invention discloses a method for preparing plasticized rubber powder, which is characterized by comprising the following steps: performing smashing by a grinder after cleaning and cutting waste tires, and obtaining rubber powder after rough smashing and superfine smashing; then after stirring the rubber powder and a softening agent as well as an activating agent, adding the mixture into a high-temperature normal-pressure regeneration device and enabling the softening agent and the activating agent to permeate the rubber powder under the normal pressure by controlling the temperature of different intervals in the range of 150 to 250 DEG C and the activating time in the range of 8 to 12min; sending the obtained product into a cooling device to cool to the temperature below 40 DEG C to obtain the plasticized rubber powder; and finally, performing packaging and warehousing. The method for preparing the plasticized rubber powder has the advantages that the process flow is simple, mature and reliable; the method has the characteristics of energy saving and environment protection; meanwhile, performance of the prepared activated rubber powder is between those of common fine rubber powder and reclaimed rubber and has good bonding performance with natural rubber; and the produced product has high tensile intensity, also has good dispersibility and can be used as a plasticizer for directly permeating a plastic product for use.

Description

A kind of plasticizing rubber powder preparation method

Technical field

The present invention relates to a kind of plasticizing rubber powder preparation method, belong to waste old cycling and reutilization field.

Background technology

China is that world's rubber first consumes big country, also is simultaneously that maximum in the world waste old produces state.2012, China's junked tire generation reached 1,000 ten thousand tons.For many years, though China's junked tire comprehensive utilization work has obtained certain effect, but with the current social Economic development require incompatible, resource and the environmental problem brought become increasingly conspicuous, therefore accelerate to advance the junked tire comprehensive utilization, reduce the external interdependency of rubber sources, prevent the pollution of the environment, it is particularly outstanding to promote China's waste rubber level of comprehensive utilization.

At present, China's rubber powder production technology is more outstanding, and particularly the normal temperature crushing technology is handled international most advanced level, and to 200 orders, specification is comparatively complete from 10 orders for the rubber powder specification.But because vulcanized rubber powder is unprocessed, relatively poor with the natural rubber bonding properties, mix behind the rubber powder spy of natural rubber manage mechanical property descend serious, thereby limited the use of rubber powder in rubber tyre.Therefore, rubber powder being carried out plastics processing, improve the rubber powder activity and reach and the rubber bonding properties, is the problem that rubber regeneration utilizes enterprise to face.

Therefore, for addressing the above problem, the spy provides a kind of new technical scheme to satisfy the demands.

Summary of the invention

The purpose of this invention is to provide a kind of plasticizing rubber powder preparation method.

The technical solution used in the present invention is:

A kind of plasticizing rubber powder preparation method, may further comprise the steps: utilize pulverizer to pulverize after junked tire is cleared up, cut, after coarse crushing, superfine grinding, obtain rubber powder, after then rubber powder and tenderizer, activator being stirred, join in the high-temperature pressure regenerating unit, under normal pressure, by the different interval temperature 150-250 degree of control, soak time 8-12min, make tenderizer, activator infiltrate in the rubber powder, be sent to then below refrigerating unit internal cooling to 40 degree, can obtain plastifying rubber powder, pack warehouse-in at last.

Described junked tire is tire tread or carcass.

The particle diameter of the rubber powder after the superfine grinding is between 30 orders-80 order.

Described tenderizer is one or several combinations in Stockholm tar, Yatall MA, rosin, the tackifying resin, and mass ratio is 100:5-15:0.2-0.4 between described rubber powder, tenderizer, the activator.

Described activator is activator 420, activator 450, activator 980 or captax.

Advantage of the present invention is: utilize the high-temperature pressure regenerating unit that rubber powder is plastified modification, at a certain temperature, vulcanized rubber powder plastifies reaction, make the rubber powder molecular rupture, recover plasticity, thereby increase the surfactivity of rubber powder, plasticizing rubber powder set rubber powder and the reclaimed rubber advantage of production, and production energy consumption is low, automatically produce continuously, technical process is simple, mature and reliable, have energy-conservation, the environmental protection characteristics, Zhi Bei activated rubber powder performance is between common fine glue powder and reclaimed rubber simultaneously, and is good with the natural rubber associativity, the product tensile strength height of production, good dispersity simultaneously can be used as a kind of fluidizer and directly mixes in the plastics and use.

Embodiment

In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and this embodiment only is used for explaining the present invention, does not constitute the restriction to protection domain of the present invention.

Embodiment 1

A kind of plasticizing rubber powder preparation method, may further comprise the steps: tire tread is cleared up, utilize pulverizer to pulverize after the cutting, through coarse crushing, obtain rubber powder after the superfine grinding, the particle diameter of rubber powder is 30 orders, then with 100kg rubber powder and 2.5kg Stockholm tar, 2.5kg Yatall MA, after 0.2kg activator 420 stirs, join in the high-temperature pressure regenerating unit, under normal pressure, by controlling different interval temperature 150 degree, soak time 8min, make tenderizer, activator infiltrates in the rubber powder, be sent to then below refrigerating unit internal cooling to 40 degree, can obtain plastifying rubber powder, pack warehouse-in at last.

Embodiment 2

A kind of plasticizing rubber powder preparation method, may further comprise the steps: carcass is cleared up, utilize pulverizer to pulverize after the cutting, through coarse crushing, obtain rubber powder after the superfine grinding, the particle diameter of rubber powder is 55 orders, then with 100kg rubber powder and 10kg rosin, after 0.3kg activator 450 stirs, join in the high-temperature pressure regenerating unit, under normal pressure, by controlling different interval temperature 200 degree, soak time 10min, make tenderizer, activator infiltrates in the rubber powder, be sent to then below refrigerating unit internal cooling to 40 degree, can obtain plastifying rubber powder, pack warehouse-in at last.

Embodiment 3

A kind of plasticizing rubber powder preparation method, may further comprise the steps: tire tread is cleared up, utilize pulverizer to pulverize after the cutting, through coarse crushing, obtain rubber powder after the superfine grinding, the particle diameter of rubber powder is 80 orders, then with 100kg rubber powder and 15kg tackifying resin, after 0.4kg activator 980 stirs, join in the high-temperature pressure regenerating unit, under normal pressure, by controlling different interval temperature 250 degree, soak time 12min, make tenderizer, activator infiltrates in the rubber powder, be sent to then below refrigerating unit internal cooling to 40 degree, can obtain plastifying rubber powder, pack warehouse-in at last.

Embodiment 4

A kind of plasticizing rubber powder preparation method, may further comprise the steps: tire tread is cleared up, utilize pulverizer to pulverize after the cutting, through coarse crushing, obtain rubber powder after the superfine grinding, the particle diameter of rubber powder is 80 orders, then with 100kg rubber powder and 15kg tackifying resin, after 0.4kg captax stirs, join in the high-temperature pressure regenerating unit, under normal pressure, by controlling different interval temperature 250 degree, soak time 12min, make tenderizer, activator infiltrates in the rubber powder, be sent to then below refrigerating unit internal cooling to 40 degree, can obtain plastifying rubber powder, pack warehouse-in at last.

Advantage of the present invention is: utilize the high-temperature pressure regenerating unit that rubber powder is plastified modification, at a certain temperature, vulcanized rubber powder plastifies reaction, make the rubber powder molecular rupture, recover plasticity, thereby increase the surfactivity of rubber powder, plasticizing rubber powder set rubber powder and the reclaimed rubber advantage of production, and production energy consumption is low, automatically produce continuously, technical process is simple, mature and reliable, have energy-conservation, the environmental protection characteristics, Zhi Bei activated rubber powder performance is between common fine glue powder and reclaimed rubber simultaneously, and is good with the natural rubber associativity, the product tensile strength height of production, good dispersity simultaneously can be used as a kind of fluidizer and directly mixes in the plastics and use.

Claims (5)

1. one kind plastifies the rubber powder preparation method, it is characterized in that: may further comprise the steps: utilize pulverizer to pulverize after junked tire is cleared up, cut, after coarse crushing, superfine grinding, obtain rubber powder, after then rubber powder and tenderizer, activator being stirred, join in the high-temperature pressure regenerating unit, under normal pressure, by the different interval temperature 150-250 degree of control, soak time 8-12min, make tenderizer, activator infiltrate in the rubber powder, be sent to then below refrigerating unit internal cooling to 40 degree, can obtain plastifying rubber powder, pack warehouse-in at last.
2. a kind of plasticizing rubber powder preparation method according to claim 1, it is characterized in that: described junked tire is tire tread or carcass.
3. a kind of plasticizing rubber powder preparation method according to claim 1, it is characterized in that: the particle diameter of the rubber powder after the superfine grinding is between 30 orders-80 order.
4. a kind of plasticizing rubber powder preparation method according to claim 1, it is characterized in that: described tenderizer is one or several combinations in Stockholm tar, Yatall MA, rosin, the tackifying resin, and mass ratio is 100:5-15:0.2-0.4 between described rubber powder, tenderizer, the activator.
5. a kind of plasticizing rubber powder preparation method according to claim 1, it is characterized in that: described activator is activator 420, activator 450, activator 980 or captax.
CN 201310243941 2013-06-20 2013-06-20 Method for preparing plasticized rubber powder CN103275369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201310243941 CN103275369A (en) 2013-06-20 2013-06-20 Method for preparing plasticized rubber powder

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Application Number Priority Date Filing Date Title
CN 201310243941 CN103275369A (en) 2013-06-20 2013-06-20 Method for preparing plasticized rubber powder

Publications (1)

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CN103275369A true CN103275369A (en) 2013-09-04

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CN 201310243941 CN103275369A (en) 2013-06-20 2013-06-20 Method for preparing plasticized rubber powder

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103756129A (en) * 2013-12-21 2014-04-30 辽宁瑞德橡塑科技有限公司 EPDM/polypropylene thermoplastic elastomer and preparation process thereof
CN103819840A (en) * 2014-01-26 2014-05-28 宁夏亿能固体废弃物资源化开发有限公司 Activating gelatin powder-toughened foam building mold plate and preparation method thereof
CN105295399A (en) * 2015-10-28 2016-02-03 贵州安泰再生资源科技有限公司 Activator for improving activity of waste tire rubber powder and preparation method thereof
CN105601990A (en) * 2016-02-04 2016-05-25 青岛科技大学 Modified waste tire rubber powder and preparation method thereof
CN107353655A (en) * 2017-07-26 2017-11-17 河北省交通规划设计院 A kind of large dosage stable type rubber powder modified asphalt and preparation method thereof
CN108976537A (en) * 2018-05-25 2018-12-11 安徽新创智能科技有限公司 A kind of preparation method and application of macro rubber powder gel material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103756129A (en) * 2013-12-21 2014-04-30 辽宁瑞德橡塑科技有限公司 EPDM/polypropylene thermoplastic elastomer and preparation process thereof
CN103756129B (en) * 2013-12-21 2016-03-02 辽宁瑞德橡塑科技有限公司 EPT rubber/thermoplastic elastomer and preparation technology thereof
CN103819840A (en) * 2014-01-26 2014-05-28 宁夏亿能固体废弃物资源化开发有限公司 Activating gelatin powder-toughened foam building mold plate and preparation method thereof
CN105295399A (en) * 2015-10-28 2016-02-03 贵州安泰再生资源科技有限公司 Activator for improving activity of waste tire rubber powder and preparation method thereof
CN105601990A (en) * 2016-02-04 2016-05-25 青岛科技大学 Modified waste tire rubber powder and preparation method thereof
CN107353655A (en) * 2017-07-26 2017-11-17 河北省交通规划设计院 A kind of large dosage stable type rubber powder modified asphalt and preparation method thereof
CN108976537A (en) * 2018-05-25 2018-12-11 安徽新创智能科技有限公司 A kind of preparation method and application of macro rubber powder gel material

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130904

C02 Deemed withdrawal of patent application after publication (patent law 2001)