CN103044735A - Method for producing regenerated rubber - Google Patents
Method for producing regenerated rubber Download PDFInfo
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- CN103044735A CN103044735A CN2012105257446A CN201210525744A CN103044735A CN 103044735 A CN103044735 A CN 103044735A CN 2012105257446 A CN2012105257446 A CN 2012105257446A CN 201210525744 A CN201210525744 A CN 201210525744A CN 103044735 A CN103044735 A CN 103044735A
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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
Abstract
The invention provides a method for producing regenerated rubber. The method comprises the following steps of: cleaning waste vulcanized rubber; crushing the cleaned waste vulcanized rubber; adding a desulfurizing agent, a softening agent and rubber into the crushed waste vulcanized rubber, wherein a mass ratio of the desulfurizing agent to the softening agent to the rubber is respectively (1:450)-(1:350), 1:25-1:20 and 1:90-1:70, stirring for no less than 3 hours; and pressing the stirred and mixed materials to obtain the finished product. The method is performed at normal temperature, waste gas and wastewater are avoided, the added substances are environment-friendly, the obtained product has excellent performance, and the application range is widened.
Description
Technical field
The present invention relates to waste material and utilize the field, refer to especially a kind of production method of regenerated rubber.
Background technology
With the leftover bits that vulcanized in the rubber production goods, namely useless cross-linked rubber is raw material, be processed into certain plasticity-, the rubber that can reuse, be technique or the production method of regenerated rubber, because oil is non-renewable, on the one hand, we continually develop out the product of longer service life when making rubber, on the other hand, behind the product rejection of these long service life, reclaim also become more difficult, but several different methods is also arranged, traditional rubber regeneration mainly contains: 1, physics method of reproduction: utilize external energy, such as power, heat-power, cold-power, microwave, ultrasonic wave, radial energies etc. make the three-dimensional network of cross-linked rubber broken, form to have mobile reclaimed rubber.Current physics regeneration techniques commonly used has micro wave regeneration, ultrasonic regeneration, electron beam regeneration and shear flow field reaction regeneration; 2, chemical regeneration method: under certain temperature and solvent atmosphere condition, (S-S) effect makes the sulfide linkage fracture to the sulphur-sulfide linkage in chemical assistant and the scrap rubber, generates to have mobile reclaimed rubber.Method commonly used is oil process, water/oil method and dynamic desulfurization, and sweetening effectiveness is obvious.But under the hot conditions, C-C (C-C) is easy fracture also, tends to generate many small molecules fragments, makes the degradation of reclaimed rubber, and the in addition volatilization of Pintsch process and scrap rubber small molecular can cause great pollution to atmosphere and water source.The regeneration of making a general survey of scrap rubber is historical, and effectively regenerator has following several: disulphide and mercaptan, mineral compound, RV rubber reclaiming agent, RRM regenerator; 3, microorganisms reproduction method: so-called microbial desulfurization, the oxidation or the Sulfur that reduce exactly Sulfur are crosslinked, make waste rubber powder superficial degradation or modification.The upper layer that this sulfur method can make the waste rubber powder becomes sticking pasty state from flexible, thereby mixes with new rubber, makes new rubber item.Have the advantages such as cost is low and free from environmental pollution with microbial desulfurization.But the commercialization distance of microbial desulfurization is also very long.
In the above method, chemical regeneration method relative usage is more, but shortcoming also clearly, in the process of traditional chemical regeneration, oxicracking vulcanized rubber when all having related to high temperature length, and the method for utilizing a large amount of oils swelling vulcanized rubbers, used oils is mainly coal tar, Stockholm tar and Yatall MA, the factory of therefore regenerating is seriously polluted, and waste water and gas is difficult to administer, and, traditional method utilization be high temperature oxidation reaction, the cross-link bond between broken words rubber molecule not only, rubber macromolecule also is degraded, cause the with low quality of reclaimed rubber, can only use as the low price packing material, therefore, we need to seek more environmental protection of a kind of production of exploitation, pollute and lack the renovation process that final product quality is high.
Summary of the invention
The present invention proposes a kind of production method of regenerated rubber, has realized can finishing regenerative response when normal temperature, reduces and pollutes, the excellent product performance that obtains simultaneously.
Technical scheme of the present invention is achieved in that a kind of production method of regenerated rubber, may further comprise the steps:
(1) cross-linked rubber that will give up cleans;
(2) the useless cross-linked rubber after will cleaning is pulverized;
(3) add sweetening agent, tenderizer and rubber in the useless cross-linked rubber after pulverizing, the mass ratio of described sweetening agent, described tenderizer, described rubber and described useless cross-linked rubber is respectively 1:450 ~ 1:350,1:25 ~ 1:20,1:90 ~ 1:70, stir, duration is no less than 3 hours, and in theory, the more long-acting fruit of duration is better, but from considerations such as costs, then can not be oversize, basically, stir and just can satisfy the later stage result of use in 3 hours.
(4) material after will mixing carries out compressing tablet.
Further, the useless cross-linked rubber granular size after the middle pulverizing of step (2) is below 5 orders.
Further, described tenderizer is any one or a few the mixture in glycerine, silicone oil, naphthenic oil and the perfume oil.
Further, described tenderizer is glycerine.
Described sweetening agent refers to remove free sulphur in fuel, raw material or the unclassified stores or the medicament of sulphur compound, kind is relatively many, various basic cpds all can be used as described sweetening agent, on described tenderizer used, adopted relatively more glycerine, silicone oil, naphthenic oil and the perfume oil of environmental protection, the use of especially described glycerine here, make production process almost not have disposal of pollutants, described rubber refers to the rubber without the over cure effect, such as mark glue, cis-butadiene cement etc.
Beneficial effect of the present invention is: owing to regenerative process of the present invention is carried out at normal temperatures, and all comparatively environmental protection such as described tenderizer that add, so whole regenerative process does not produce atmosphere and water pollutes, technique is environmental protection more; On the other hand, owing to there are not the environment such as High Temperature High Pressure, so regenerative process is very little for the impact of rubber macromolecule major key, the property indices of the reclaimed rubber that the production method of the regenerated rubber that therefore proposes by the present invention obtains all is better than traditional reclaimed rubber, rise and to reach 60% ~ 85% of virgin rubber performance, enlarged usage ratio, Application Areas is wider, use value is higher, and, still keeping vulcanization system in the composition of the regenerated rubber that the production method of the regenerated rubber that proposes by the present invention obtains, because described regenerated rubber can add any vulcanizing agent again and promotor just can directly be carried out the operation of sulfuration pattern, thereby has reduced cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schema of the production method of a kind of regenerated rubber of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment 1
We will collect 2 tons useless cross-linked rubber from scraped car tire, rubber gloves, rubber soles etc. and put together, and the production method of the regenerated rubber that then proposes according to the present invention proceeds as follows:
(1) cross-linked rubber that will give up cleans;
(2) the useless cross-linked rubber after will cleaning is crushed in rubber crusher below 5 orders;
(3) the useless cross-linked rubber after pulverizing joins in the stirrer, then adds ferric oxide desulfurizer 5Kg, glycerine 90Kg and mark glue 25Kg, and start was stirred 4 hours;
(4) material after will mixing carries out compressing tablet at tabletting machine.
By aforesaid operations, we obtain reclaimed rubber 1.
Embodiment 2
We will collect 2 tons useless cross-linked rubber from scraped car tire, rubber gloves, rubber soles etc. and put together, and the production method of the regenerated rubber that then proposes according to the present invention proceeds as follows:
(1) cross-linked rubber that will give up cleans;
(2) the useless cross-linked rubber after will cleaning is crushed in rubber crusher below 5 orders;
(3) the useless cross-linked rubber after pulverizing joins in the stirrer, and then mixture 80Kg and the natural gum 21Kg of the sweetening agent 4.6Kg of the preparations such as adding yellow soda ash, alkaline Tai-Ace S 150, glycerine, naphthenic oil start shooting and stirred 5 hours;
(4) material after will mixing carries out compressing tablet at tabletting machine.
By aforesaid operations, we obtain reclaimed rubber 2.
Embodiment 3
We will collect 2 tons useless cross-linked rubber from scraped car tire, rubber gloves, rubber soles etc. and put together, and the production method of the regenerated rubber that then proposes according to the present invention proceeds as follows:
(1) cross-linked rubber that will give up cleans;
(2) the useless cross-linked rubber after will cleaning is crushed in rubber crusher below 5 orders;
(3) the useless cross-linked rubber after pulverizing joins in the stirrer, then adds unslaked lime sweetening agent 5.5Kg, silicone oil 98Kg and cis-butadiene cement 28Kg, and start was stirred 3 hours;
(4) material after will mixing carries out compressing tablet at tabletting machine.
By aforesaid operations, we obtain reclaimed rubber 3.
We do not produce any waste gas and waste water in obtaining reclaimed rubber 1,2 and 3 process, free from environmental pollution, more environmental protection, then, we get thickness 2mm with reclaimed rubber 1,2 and 3, the detection product 1 of width 6mm, 2 and 3 carry out Performance Detection, obtain following detection data:
| ? | Detect product 1 | Detect product 2 | Detect product 3 |
| Degree of pulling apart (MPa) | 10 | 9 | 9 |
| Elongation (%) | 500 | 450 | 480 |
From above-mentioned data, we see that its tensile strength at yield obviously is better than traditional reclaimed rubber, have reached more than 60% of virgin rubber tensile strength at yield (about 15MPa), thereby have made reclaimed rubber 1,2 and 3 have more wide use field and usage quantity.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the production method of a regenerated rubber is characterized in that, may further comprise the steps:
(1) cross-linked rubber that will give up cleans;
(2) the useless cross-linked rubber after will cleaning is pulverized;
(3) add sweetening agent, tenderizer and rubber in the useless cross-linked rubber after pulverizing, the mass ratio of described sweetening agent, described tenderizer, described rubber and described useless cross-linked rubber is respectively 1:450 ~ 1:350,1:25 ~ 1:20,1:90 ~ 1:70, stir, duration is no less than 3 hours.
2. the production method of reclaimed rubber as described in claim 1, it is characterized in that: also comprise afterwards step (4) in step (3): the material after will mixing carries out compressing tablet.
3. the production method of reclaimed rubber as described in claim 2, it is characterized in that: the useless cross-linked rubber granular size after pulverizing in the step (2) is below 5 orders.
4. the production method of reclaimed rubber as described in claim 3 is characterized in that: described tenderizer is any one or a few the mixture in glycerine, silicone oil, naphthenic oil and the perfume oil.
5. the production method of reclaimed rubber as described in claim 4, it is characterized in that: described tenderizer is glycerine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525744.6A CN103044735B (en) | 2012-12-06 | 2012-12-06 | Method for producing regenerated rubber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525744.6A CN103044735B (en) | 2012-12-06 | 2012-12-06 | Method for producing regenerated rubber |
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| CN103044735A true CN103044735A (en) | 2013-04-17 |
| CN103044735B CN103044735B (en) | 2014-12-10 |
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| CN201210525744.6A Expired - Fee Related CN103044735B (en) | 2012-12-06 | 2012-12-06 | Method for producing regenerated rubber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304841A (en) * | 2013-06-21 | 2013-09-18 | 陈漫远 | Regenerated rubber production method |
| CN104530515A (en) * | 2014-12-30 | 2015-04-22 | 安徽微威胶件集团有限公司 | Production process of environment-friendly regenerated rubber |
| CN104672489A (en) * | 2013-11-29 | 2015-06-03 | 招远市东晟橡胶制品有限公司 | Waste rubber desulfurization technology |
| CN104910473A (en) * | 2015-06-13 | 2015-09-16 | 司徒建辉 | Softening agent for regenerated rubber production |
| CN107619499A (en) * | 2017-09-21 | 2018-01-23 | 新中天环保股份有限公司 | A kind of renovation process of junked tire |
| CN112358651A (en) * | 2020-12-03 | 2021-02-12 | 惠州市福橡新材料科技有限公司 | Vulcanized rubber reduction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281000A (en) * | 1999-07-15 | 2001-01-24 | 四川大学 | Process for desulfurizing used rubber |
| CN1850484A (en) * | 2006-05-17 | 2006-10-25 | 昆明凤凰橡胶有限公司 | Method for shaping and processing rubber product by direct reaction from waste tyre rubber powder |
| CN101633744A (en) * | 2009-08-27 | 2010-01-27 | 福建环科化工橡胶集团有限公司 | Method for preparing environment-friendly white fine renewable rubber |
| CN102061006A (en) * | 2009-11-16 | 2011-05-18 | 焦作市弘瑞橡胶有限责任公司 | Production process for reclaimed rubber |
-
2012
- 2012-12-06 CN CN201210525744.6A patent/CN103044735B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281000A (en) * | 1999-07-15 | 2001-01-24 | 四川大学 | Process for desulfurizing used rubber |
| CN1850484A (en) * | 2006-05-17 | 2006-10-25 | 昆明凤凰橡胶有限公司 | Method for shaping and processing rubber product by direct reaction from waste tyre rubber powder |
| CN101633744A (en) * | 2009-08-27 | 2010-01-27 | 福建环科化工橡胶集团有限公司 | Method for preparing environment-friendly white fine renewable rubber |
| CN102061006A (en) * | 2009-11-16 | 2011-05-18 | 焦作市弘瑞橡胶有限责任公司 | Production process for reclaimed rubber |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304841A (en) * | 2013-06-21 | 2013-09-18 | 陈漫远 | Regenerated rubber production method |
| CN104672489A (en) * | 2013-11-29 | 2015-06-03 | 招远市东晟橡胶制品有限公司 | Waste rubber desulfurization technology |
| CN104530515A (en) * | 2014-12-30 | 2015-04-22 | 安徽微威胶件集团有限公司 | Production process of environment-friendly regenerated rubber |
| CN104910473A (en) * | 2015-06-13 | 2015-09-16 | 司徒建辉 | Softening agent for regenerated rubber production |
| CN107619499A (en) * | 2017-09-21 | 2018-01-23 | 新中天环保股份有限公司 | A kind of renovation process of junked tire |
| CN112358651A (en) * | 2020-12-03 | 2021-02-12 | 惠州市福橡新材料科技有限公司 | Vulcanized rubber reduction method |
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| CN103044735B (en) | 2014-12-10 |
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