CN103483656B - Reprocessing method for waste rubber - Google Patents
Reprocessing method for waste rubber Download PDFInfo
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- CN103483656B CN103483656B CN201310430714.1A CN201310430714A CN103483656B CN 103483656 B CN103483656 B CN 103483656B CN 201310430714 A CN201310430714 A CN 201310430714A CN 103483656 B CN103483656 B CN 103483656B
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- Prior art keywords
- rubber
- mixture
- waste
- activated carbon
- oxygen plasma
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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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- Processing Of Solid Wastes (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention belongs to the field of machine manufacturing, and particularly relates to a reprocessing method for waste rubber. The waste rubber is subjected to seven steps of treatment including smashing, cleaning, melting, modifying, vacuum defoaming, shape forming and vulcanizing. An oxygen plasma activated carbon tube, modified starch and pigment are added and stirred uniformly with rubber cement to realize modification, wherein the content of the oxygen plasma activated carbon tube is 1-5%, and the content of the modified starch is 3-8%. In the shape forming process, a mixture of magnesium-aluminium hydrotalcite, ammonium polyphosphate and magnesium hydroxide are added, wherein the ratio of the magnesium-aluminium hydrotalcite to the ammonium polyphosphate to the magnesium hydroxide in the mixture is 2:1:2. After the waste rubber is subjected to the series of treatment, waste is turned into wealth, used rubber is purified, and the ductility, oxidation resistance and fire resistance of reproduced rubber are improved.
Description
Technical field
The invention belongs to mechanical manufacturing field, be specifically related to a kind of process for subsequent treatment of waste rubber.
Background technology
Rubber is common industrial production wheel, travelling belt, construct the essential product of object, the annual consumption of rubber is also very surprising, how to deal carefully with waste rubber and become urgent problem, turning waste into wealth is the main stream approach of rubberized, so the process for subsequent treatment of waste rubber also becomes very important, irrational reprocessing can not meet condition of the share wasting manpower and material resources simultaneously of rubber most probably, the present invention proposes a kind of process for subsequent treatment of waste rubber, both the old rubber of regeneration activating, also give regenerative ratio rubber some character originally do not had simultaneously, extend rubber work-ing life, also improve security.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of process for subsequent treatment of waste rubber of turning waste into wealth.
To achieve these goals, the present invention realizes by the following technical solutions:
A process for subsequent treatment for waste rubber,
1) pulverize: waste Crumb rubber is broken into 100 ~ 300 object rubber powders;
2) cleaning: rubber powder is used respectively successively the mixture of ethanol and ether, acetone and deionized water ultrasound filtration cleaning half hour in industrial ultrasonic machine respectively, then clean three times by 93# gasoline and deionized water order;
3) melt: cleaned rubber powder is put into reactor, 300 DEG C, under agitation condition, heat 30min, make it become melting cement state;
4) modification: add oxygen plasma activated carbon pipe, treated starch and pigment in reactor, stir with rubber cement; The content of described oxygen plasma activated carbon pipe is 1% ~ 5%, and the content of described treated starch is 3% ~ 8%;
5) vacuum defoamation: be evacuated by reactor, takes the air dissolved in rubber cement away, sloughs the bubble in rubber cement;
6) shape: from reactor, release rubber cement in mould, vacuum cooling 3 ~ 4h, when rubber cement becomes half-dried, sprinkle the mixture of magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide, then cool 3 ~ 4h, to complete drying;
In the mixture of described magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide, the ratio of magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide is 2:1:2;
7) sulfuration: use sulphur and calcium carbonate to carry out at 130 ~ 140 DEG C, sulfuration 30min under pressure 15MPa condition, passes into hydrogen sulfide in sulfidation, helps sulfuration complete.
In the process for subsequent treatment of above-mentioned waste rubber, described step 2) in, in the mixture of described ethanol and ether, ethanol: ether=5:2.
In the process for subsequent treatment of above-mentioned waste rubber, described step 4), described oxygen plasma activated carbon pipe treatment condition are under vacuum stirring condition, and high temperature leads to oxygen 1h process carbon pipe.
In the process for subsequent treatment of above-mentioned waste rubber, described step 4) in, described treated starch is cross-linking starch.
Beneficial effect: by waste rubber through pulverizing, cleaning, melt, modification, vacuum defoamation, after the process of sizing and sulfuration seven steps, not only turn waste into wealth, and pass through after a series of process of waste rubber, purify old rubber, increase the ductility of regenerative ratio rubber, oxidation-resistance and flame retardant resistance, pulverizing rubber powder size is suitable, process without the need to using meticulous instrument, water-soluble and the lipid-soluble substance on cleaning removing scrap rubber surface, improve scrap rubber quality, in modification, oxygen plasma activated carbon pipe improves resistance of aging, increase the service life, treated starch add increase ductility, the ugly color adding mediation scrap rubber of pigment, to the visual sense of security of client, vacuum defoamation increases rubber compactness, when rubber cement becomes half-dried, sprinkle magnesium aluminum-hydrotalcite, the mixture of ammonium polyphosphate and magnesium hydroxide, mixture is adsorbed in rubber surface, play fire-retardant effect.
Embodiment
The technique means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
Embodiment 1:
1) pulverize: waste Crumb rubber is broken into 100 ~ 300 object rubber powders, rubber powder size is suitable, processes without the need to using meticulous instrument.
2) clean: rubber powder is used respectively successively the mixture of ethanol and ether, acetone and deionized water ultrasound filtration cleaning half hour respectively, clean three times by 93# gasoline and deionized water order again, water-soluble and the lipid-soluble substance on removing scrap rubber surface, improves scrap rubber quality.
3) melt: cleaned rubber powder is put into reactor, under 300 DEG C of conditions, heats 30min, make it become melting cement state.
4) modification: add oxygen plasma activated carbon pipe, treated starch and pigment in reactor, stir with rubber cement, the content of described oxygen plasma activated carbon pipe is 4%, the content of described treated starch is 5%, oxygen plasma activated carbon pipe improve resistance of aging, increase the service life, treated starch add increase ductility, the ugly color adding mediation scrap rubber of pigment, to the visual sense of security of client.
5) vacuum defoamation: be evacuated by reactor, takes the air dissolved in rubber cement away, sloughs the bubble in rubber cement, increases rubber compactness.
6) shape: from reactor, release rubber cement in mould, vacuum cooling 3h, when rubber cement becomes half-dried, sprinkle the mixture of magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide, mixture is adsorbed in rubber surface, play fire-retardant effect, cool 3h again, to complete drying.
7) sulfuration: use sulphur and calcium carbonate to carry out at 130 DEG C, sulfuration 30min under pressure 15MPa condition, passes into hydrogen sulfide in sulfidation, helps sulfuration complete.
Wherein, in the mixture of described ethanol and ether, ethanol: ether=5:2.
Crucially, described oxygen plasma activated carbon pipe treatment condition are under vacuum stirring condition, and high temperature leads to oxygen 1h process carbon pipe, and described treated starch is cross-linking starch.
And in the mixture of described magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide, the ratio of magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide is 2:1:2.
In the present embodiment, select suitable oxygen plasma activated carbon pipe and level of modified starch in modification procedure, ductility, than not adding or adding fashion 2 times less, is detected by accelerated test and obtains ageing resistance and improve 1 times.
Embodiment 2: all the other are identical with described embodiment 1, difference is, first vacuum cooling 4h in step 6), cool 4h again, in the present embodiment, the rubber flame-retarded effect of gained is slightly poorer than embodiment 1, but the mixture consumption of magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide is low, does not affect result of use.
Embodiment 3: all the other are identical with described embodiment 1, and difference is, changes cure conditions in step 7): 140 DEG C, sulfuration 30min under pressure 15MPa condition.
The present invention is applicable to other Retreatment methods of waste old, as 4) time only add treated starch or oxygen plasma activated carbon pipe, 6) time do not add the mixture etc. of magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide.
The present embodiment is known in practical application, waste rubber passes through and pulverizes by the present invention, cleaning, melt, modification, vacuum defoamation, after the process of sizing and sulfuration seven steps, not only turn waste into wealth, and pass through after a series of process of waste rubber, purify old rubber, increase the ductility of regenerative ratio rubber, oxidation-resistance and flame retardant resistance, pulverizing rubber powder size is suitable, process without the need to using meticulous instrument, water-soluble and the lipid-soluble substance on cleaning removing scrap rubber surface, improve scrap rubber quality, in modification, oxygen plasma activated carbon pipe improves resistance of aging, increase the service life, treated starch add increase ductility, the ugly color adding mediation scrap rubber of pigment, to the visual sense of security of client, vacuum defoamation increases rubber compactness, when rubber cement becomes half-dried, sprinkle magnesium aluminum-hydrotalcite, the mixture of ammonium polyphosphate and magnesium hydroxide, mixture is adsorbed in rubber surface, play fire-retardant effect.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a process for subsequent treatment for waste rubber, is characterized in that,
1) pulverize: waste Crumb rubber is broken into 100 ~ 300 object rubber powders;
2) cleaning: rubber powder is used respectively successively the mixture of ethanol and ether, acetone and deionized water ultrasound filtration cleaning half hour in industrial ultrasonic machine respectively, then clean three times by 93# gasoline and deionized water order;
3) melt: cleaned rubber powder is put into reactor, 300 DEG C, under agitation condition, heat 30min, make it become melting cement state;
4) modification: add oxygen plasma activated carbon pipe, cross-linking starch and pigment in reactor, stir with rubber cement; The content of described oxygen plasma activated carbon pipe is 1% ~ 5%, and the content of described cross-linking starch is 3% ~ 8%; Described oxygen plasma activated carbon pipe treatment condition are under vacuum stirring condition, and high temperature leads to oxygen 1h process carbon pipe;
5) vacuum defoamation: be evacuated by reactor, takes the air dissolved in rubber cement away, sloughs the bubble in rubber cement;
6) shape: from reactor, release rubber cement in mould, vacuum cooling 3 ~ 4h, when rubber cement becomes half-dried, sprinkle the mixture of magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide, then cool 3 ~ 4h, to complete drying;
In the mixture of described magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide, the ratio of magnesium aluminum-hydrotalcite, ammonium polyphosphate and magnesium hydroxide is 2: 1: 2;
7) sulfuration: use sulphur and calcium carbonate to carry out at 130 ~ 140 DEG C, sulfuration 30min under pressure 15MPa condition, passes into hydrogen sulfide in sulfidation, helps sulfuration complete.
2. according to the process for subsequent treatment of the waste rubber described in claim 1, it is characterized in that, described step 2) in, in the mixture of described ethanol and ether, ethanol: ether=5: 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310430714.1A CN103483656B (en) | 2013-09-22 | 2013-09-22 | Reprocessing method for waste rubber |
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| CN201310430714.1A CN103483656B (en) | 2013-09-22 | 2013-09-22 | Reprocessing method for waste rubber |
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| CN103483656B true CN103483656B (en) | 2015-05-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479188A (en) * | 2014-12-31 | 2015-04-01 | 广西大学 | Rubber production technology |
| CN104804312A (en) * | 2015-04-27 | 2015-07-29 | 安徽美祥实业有限公司 | Rubber production process |
| CN104893057A (en) * | 2015-06-08 | 2015-09-09 | 苏州市湘园特种精细化工有限公司 | Reprocessing method of waste rubber |
| CN105670069A (en) * | 2016-01-13 | 2016-06-15 | 浙江世泰实业有限公司 | Manufacturing process of hydraulic mount's rubber main spring |
| FR3060588A1 (en) * | 2016-12-20 | 2018-06-22 | Compagnie Generale Des Etablissements Michelin | RUBBER COMPOSITION COMPRISING A SPECIFIC RUBBER POWDER |
| CN107266724A (en) * | 2017-07-24 | 2017-10-20 | 陈登辉 | A kind of preparation method of hard hollow rubber material |
| CN109049773A (en) * | 2018-08-16 | 2018-12-21 | 常州群达环保科技股份有限公司 | Regenerated plastics prepare the technique and device of plastic barrel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418104A (en) * | 2008-10-27 | 2009-04-29 | 江苏省国祥塑胶有限公司 | Waste polyvinyl chloride and waste rubber blending system and preparation method |
| CN101974173A (en) * | 2010-10-18 | 2011-02-16 | 江汉大学 | Microwave activated waste rubber powder-containing flame retardant rubber plate and preparation method thereof |
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| BR112012023387A2 (en) * | 2010-03-15 | 2018-07-24 | Phoenix Innovation Tech Inc | method and apparatus for regenerating vulcanised rubber |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418104A (en) * | 2008-10-27 | 2009-04-29 | 江苏省国祥塑胶有限公司 | Waste polyvinyl chloride and waste rubber blending system and preparation method |
| CN101974173A (en) * | 2010-10-18 | 2011-02-16 | 江汉大学 | Microwave activated waste rubber powder-containing flame retardant rubber plate and preparation method thereof |
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