CN103435843A - Reclaiming agent, reclaimed rubber prepared therefrom, and preparation method of reclaimed rubber - Google Patents
Reclaiming agent, reclaimed rubber prepared therefrom, and preparation method of reclaimed rubber Download PDFInfo
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- CN103435843A CN103435843A CN2013103831695A CN201310383169A CN103435843A CN 103435843 A CN103435843 A CN 103435843A CN 2013103831695 A CN2013103831695 A CN 2013103831695A CN 201310383169 A CN201310383169 A CN 201310383169A CN 103435843 A CN103435843 A CN 103435843A
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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 discloses a reclaiming agent, reclaimed rubber prepared therefrom, and a preparation method of the claimed rubber. The reclaiming agent comprises the following components in parts by mass: 0.5-3 parts of regenerated activator, 5-20 parts of regenerated swelling agent and 1-10 parts of other processing aids. The reclaiming agent, the reclaimed rubber and the preparation method of the claimed rubber have the beneficial effects that crumb rubber powder, used environment-friendly regenerated activator and the swelling agent are uniformly mixed and then added to rubber mixing equipments, such as an open mill and an extruder to reclaim under the condition from room temperature to 50 DEG C in a high-speed mixer in the process of preparing the environment-friendly reclaimed rubber; the regenerating temperature is low, so that bad objectionable odor and staining property of the traditional reclaimed rubber are removed. Compared with the traditional reclaimed rubber, the environment-friendly reclaimed rubber has the advantages that the mechanical property and the processing property are not reduced by a test; chemicals which are not permitted to use are not contained in 'REACH'; the reclaiming agent is simple and efficient in processing technology, and fewer in regenerating procedure; various rubber mixing equipments can carry out regeneration operation.
Description
Technical field
The invention belongs to a kind of recycling field of waste rubber, the regenerated rubber and the preparation method that relate to a kind of regenerator, use this regenerator to prepare.
Background technology
Rubber macromolecule chain and vulcanizing agent are as Sulfur, thereby the generation chemical reactions such as promotor make the rubber macromolecule interchain form chemically crosslinked point is transformed into the three-dimensional space network structure by linear one-dimentional structure, improve the physical and mechanical properties of rubber, but the rubber after crosslinked over a long time can not natural degradation after discarded, mostly become industrial refuse, a large amount of available resources had both been wasted, caused again than the more unmanageable black pollution of plastic pollution, having a strong impact on the mankind's living environment, at current oil spike, in the situation that shortage of resources and environment accelerate to worsen, alleviate environmental pressure, high efficiency recycling waste rubber resource, realize the green circulatory of the basic raw material utilization of resources, be significant.
Due to not the melting of waste rubber tridimensional network, dissolution characteristics not, be difficult to reuse, since vulcanization of rubber technological invention, the various countries investigator attempts to invent a kind of contrary sulfuration (regeneration) technology effectively, make the one-dimensional linear structure before its waste rubber returns to sulfuration, and with good revulcanization activity, and a series of renovation process and technique have been developed for this reason.Wherein the large-scale production regenerated rubber the regeneration of high temperature dynamic devulcanizer, the regeneration of constant-pressure and high-temperature plasticizing machine, normal pressure mechanical process regeneration etc. are arranged.The regeneration of high temperature dynamic devulcanizer is all wayward owing to producing pressure large (2.5～5MPa), temperature and technique, and localized hyperthermia's (more than 200 ℃), simultaneously because of long-time high temperature " desulfurization ", cause thermo-oxidative ageing to cause regenerated rubber intensity degradation, produce waste water, waste gas, taste stench (coal tar) is seriously polluted simultaneously.The danger of using dynamic devulcanizer regeneration high pressure to bring has been avoided in the regeneration of constant-pressure and high-temperature plasticizing machine, significantly reduced accident potential, but its production technique remains hot conditions, the normal pressure mechanical process regeneration uprises temperature for low temperature, multiplexly produce saturated waste rubber, therefore the renovation process of regenerated rubber becomes the study hotspot of numerous manufacturing enterprises and research and development institution at present.
In the reclaiming process of waste rubber, depend merely on heat or shearing provides energy, be difficult to the regeneration purpose that reaches desirable, must add regenerator, swelling agent etc. just can produce high-quality regenerated rubber.In regenerative process, at first swelling agent is penetrated in the cross-linked network of cross-linked rubber, make between the rubber macromolecule chain and the interaction force between rubber macromolecule chain and filler weakens, volume expands, increased the distance of rubber macromolecule interchain, spread in cross-linked network thereby be conducive to the auxiliary agents such as regeneration activator.In producing at present, regeneration activator commonly used is mainly alkyl phenol sulfide, has certain toxicity.Although the De-link regenerator of external invention can make waste rubber regeneration under the effect of low temperature, mechanical force, due to too expensive, later stage mooney viscosity bounce-back degree is larger, is difficult to promote in China.Therefore inventing a kind of quick, low-cost, free of contamination renovation process, is the key that solves the waste rubber recycling utilization.
Summary of the invention
The object of the present invention is to provide a kind of regenerator, its regeneration efficiency is high, does not contain the chemical of regulation in " REACH " in formula, environmental protection.
The present invention realizes with following technical scheme:
A kind of regenerator is evenly mixed by the component of following mass fraction: regeneration activator 0.5-3 part, regeneration swelling agent 5-20 part, other processing aids 1-10 part.
Preferably: described regeneration activator is the mixture of splitting one or more compositions of logical-22, vulkacit D, urea, stearic acid, antioxidant BHT or Manganse Dioxide.
Preferably: described regeneration swelling agent is one or more combinations in environment-friendly aromatic oil, plant asphalt, wood tar oil or smell-less pine tar.
Preferably: described other processing aids comprise one or more combinations of softening agent, weighting agent and strengthening agent.
More preferably: one or more combinations that described softening agent is rosin, coumarone indene resin and resol.
More preferably: described weighting agent comprises one or more combinations of talcum powder, light calcium carbonate.
More preferably: one or more combinations that described strengthening agent is carbon black, white carbon black.
As another object of the present invention, the present invention further provides the regenerated rubber that uses above-mentioned regenerator to prepare, and adopts 100 parts of waste rubber powders, regeneration activator 0.5-3 part, regeneration swelling agent 5-20 part, other processing aids 1-10 part makes through premix, stirring, moulding.
Not containing the chemical of regulation in " REACH ", avoid having in the regenerative process discharge of the obnoxious flavoures such as more hydrogen sulfide and sulfurous gas in regenerated rubber formula of the present invention, improved operating environment.
Another object of the present invention is to provide a kind of preparation method of regenerated rubber, the method is applicable to the environmental friendly regenerated of waste tyre rubber powder, improve the problem that existing renovation process causes that rubber macromolecule chain backbone breaking and revulcanization properties of rubber descend, the complete processing simple and effective, adopt various high-speed mixers and the mill operation of can being regenerated, there is outstanding economic benefit and social benefit.
A kind of method for preparing above-mentioned regenerated rubber comprises following steps:
(1) take 100 parts of 20-40 order waste rubber powders according to mass ratio, regeneration activator 0.5-3 part, regeneration swelling agent 5-20 part, other processing aids 1-10 part;
(2) component taken is carried out to the normal pressure stirring under 100-150 ℃ of condition, rotating speed is 1000rpm, stirs premix and processes 8-12 minute, makes compound.
(3) (2) described compound is cooling to room temperature, drop in mill or forcing machine, carry out thin-pass or extrude, make the regenerated rubber of even sheet.
Further, preferably: the condition of mill or forcing machine is: temperature is room temperature to 50 ℃, and the time is 5-8min.
The regenerated rubber that adopts compound regenerator of the present invention and reclaiming process to prepare, after sulfuration, the performance test results of regenerated rubber is: tensile strength is 9-12MPa, elongation rate of tensile failure is 300-380%, the mechanical property that has reached conventional regeneration rubber detects data, proves that product of the present invention obtained good effect to the regeneration of waste tyre rubber powder.
The invention has the beneficial effects as follows: the method is in preparing the process of environment-friendly type regenerated rubber, shoddy and environmental friendly regenerated activator used, swelling agent add after mixing in high-speed mixer in the rubber preparing devices such as mill, forcing machine is regenerated under room temperature to 50 ℃ condition, thereby regeneration temperature lower unpleasant odor and the contaminative of dispelling conventional regeneration rubber, dispelled " REACH "-limit the chemical used in " European Union about the registration of chemical, assess, authorize statute of limitation ".Environment-friendly type regenerated rubber and conventional regeneration rubber phase ratio after tested, mechanical property and processing performance do not descend, and not containing the chemical that does not allow in " REACH " to use, the complete processing simple and effective, step for regeneration is little, the operation of all can being regenerated of various rubber preparing devices, have certain economic benefit and social benefit.
Embodiment
Embodiment 1
Add 50 kilograms of 20-40 order waste tyre rubber powders in the high-speed mixer of 200 liters, adding the composite environment-friendly regeneration activator is the mixture that 250 grams are split logical-22,5 kilogram stearic acid, 100 gram vulkacit Ds, 100 gram antioxidant BHTs, 100 gram Manganse Dioxide, 6 kilograms of environment-friendly aromatic oils, the mixture that processing aid is 250 gram rosin, 5 kilograms of light calcium carbonates, in high-speed mixer, stir after 8-12 minute, in high-speed mixer, material, because friction is warming up to 120 ℃, gets final product discharge.By the first batch mixing be mixed, drop into mill or forcing machine, after 5-8 minute presses refining, become even sheet regenerated rubber.
Obtain this routine regenerated rubber fundamental property and meet national regenerated rubber A1 grade standard according to standard GB/T/T13460-2008 detection regenerated rubber performance.
Embodiment 2
Add 50 kilograms of 20-40 order waste tyre rubber powders in the high-speed mixer of 200 liters, adding the composite environment-friendly regeneration activator is the mixture that 250 grams are split logical-22,5 kilogram stearic acid, 100 gram urea, 100 gram antioxidant BHTs, 100 gram Manganse Dioxide, 6 kilograms of plant asphalts, the mixture that processing aid is 250 gram coumarone indene resins, 4 kilograms of light calcium carbonates, 1 kilogram of white carbon black, in high-speed mixer, stir after 8-12 minute, in high-speed mixer, material, because friction is warming up to 120 ℃, gets final product discharge.By the first batch mixing be mixed, drop into mill or forcing machine, after 5-8 minute presses refining, become even sheet regenerated rubber.
Obtain this routine regenerated rubber fundamental property and meet national regenerated rubber A2 grade standard according to standard GB/T/T13460-2008 detection regenerated rubber performance.
Embodiment 3
Add 50 kilograms of 20-40 order waste tyre rubber powders in the high-speed mixer of 200 liters, adding the composite environment-friendly regeneration activator is the mixture that 250 grams are split logical-22,5 kilogram stearic acid, 100 gram vulkacit Ds, 100 gram antioxidant BHTs, 100 gram Manganse Dioxide, 6 kilograms of Stockholm tars, the mixture that processing aid is 250 gram rosin, 4 kilograms of light calcium carbonates, 0.5 kilogram of carbon black, in high-speed mixer, stir after 8-12 minute, in high-speed mixer, material, because friction is warming up to 120 ℃, gets final product discharge.By the first batch mixing be mixed, drop into mill or forcing machine, after 5-8 minute presses refining, become even sheet regenerated rubber.
Obtain this routine regenerated rubber fundamental property and meet national regenerated rubber A2 grade standard according to standard GB/T/T13460-2008 detection regenerated rubber performance.
Claims (10)
1. a regenerator is characterized in that: comprise mixed uniformly regeneration activator, regeneration swelling agent and other processing aids, the mass fraction of each component is respectively: regeneration activator 0.5-3 part, regeneration swelling agent 5-20 part, other processing aids 1-10 part.
2. regenerator according to claim 1, it is characterized in that: described regeneration activator is the mixture of splitting one or more compositions of logical-22, vulkacit D, urea, stearic acid, antioxidant BHT or Manganse Dioxide.
3. according to the described regenerator of claim 1 or 2, it is characterized in that: described regeneration swelling agent is one or more combinations in environment-friendly aromatic oil, plant asphalt, wood tar oil or smell-less pine tar.
4. according to the described regenerator of claim 1 or 2, it is characterized in that: described other processing aids comprise one or more combinations of softening agent, weighting agent and strengthening agent.
5. regenerator according to claim 4, is characterized in that: one or more combinations that described softening agent is rosin, coumarone indene resin and resol.
6. regenerator according to claim 4, it is characterized in that: described weighting agent comprises one or more combinations of talcum powder, light calcium carbonate.
7. regenerator according to claim 4, is characterized in that: one or more combinations that described strengthening agent is carbon black, white carbon black.
8. use the regenerated rubber prepared as regenerator as described in claim 1-7, it is characterized in that: adopt 100 parts of waste rubber powders, regeneration activator 0.5-3 part, regeneration swelling agent 5-20 part, other processing aids 1-10 part makes through premix, stirring, moulding.
9. prepare the method for regenerated rubber as claimed in claim 8, it is characterized in that: comprise following steps:
(1) take 100 parts of waste rubber powders according to mass ratio, regeneration activator 0.5-3 part, regeneration swelling agent 5-20 part, other processing aids 1-10 part;
(2) component taken is carried out to the normal pressure stirring under 100-150 ℃ of condition, rotating speed is 1000rpm, stirs premix and processes 8-12 minute, makes compound.
(3) (2) described compound is cooling to room temperature, drop in mill or forcing machine, carry out thin-pass or extrude, make the regenerated rubber of even sheet.
10. method according to claim 9, it is characterized in that: the condition of mill or forcing machine is: temperature is room temperature to 50 ℃, the time is 5-8min.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194036A (en) * | 2014-08-28 | 2014-12-10 | 中胶橡胶资源再生（青岛）有限公司 | Regenerant for regenerated rubber and preparation method of regenerant |
| CN105504428A (en) * | 2016-01-08 | 2016-04-20 | 山东金山橡塑装备科技有限公司 | Preparation method of reclaimed rubber powder-plastified synthetic rubber |
| CN108219192A (en) * | 2018-01-11 | 2018-06-29 | 徐州工业职业技术学院 | A kind of method that low-temp desulfurization produces environmental friendly regenerated glue |
| CN108341991A (en) * | 2018-02-26 | 2018-07-31 | 徐州工业职业技术学院 | A kind of composite regenerated activator of scrap rubber efficient cryogenic |
| CN108373557A (en) * | 2017-12-29 | 2018-08-07 | 天台坤荣橡胶有限公司 | A kind of preparation method of high-performance reclaimed rubber |
| CN110054908A (en) * | 2019-05-13 | 2019-07-26 | 中南林业科技大学 | A kind of biological material base regeneration asphalt and preparation method thereof |
| CN111234310A (en) * | 2020-03-30 | 2020-06-05 | 泸州正发新材料有限公司 | Preparation method of fine rubber powder of activated waste rubber |
| CN111574841A (en) * | 2020-06-11 | 2020-08-25 | 陕西中融交通建设有限公司 | Regenerant and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108373557B (en) * | 2017-12-29 | 2020-08-11 | 天台坤荣橡胶有限公司 | Preparation method of high-performance regenerated rubber |
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| CN108341991A (en) * | 2018-02-26 | 2018-07-31 | 徐州工业职业技术学院 | A kind of composite regenerated activator of scrap rubber efficient cryogenic |
| CN108341991B (en) * | 2018-02-26 | 2021-03-26 | 徐州工业职业技术学院 | Low-temperature high-efficiency composite regeneration activator for waste rubber |
| CN110054908A (en) * | 2019-05-13 | 2019-07-26 | 中南林业科技大学 | A kind of biological material base regeneration asphalt and preparation method thereof |
| CN110054908B (en) * | 2019-05-13 | 2021-08-13 | 中南林业科技大学 | Biomass material-based regenerated asphalt and preparation method thereof |
| CN111234310A (en) * | 2020-03-30 | 2020-06-05 | 泸州正发新材料有限公司 | Preparation method of fine rubber powder of activated waste rubber |
| CN111574841A (en) * | 2020-06-11 | 2020-08-25 | 陕西中融交通建设有限公司 | Regenerant and preparation method thereof |
| CN111574841B (en) * | 2020-06-11 | 2021-12-31 | 陕西中融交通建设有限公司 | Regenerant and preparation method thereof |
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Application publication date: 20131211 |