CN103881174A - High-quality environment-friendly reclaimed rubber with low internetware and fabrication method thereof - Google Patents
High-quality environment-friendly reclaimed rubber with low internetware and fabrication method thereof Download PDFInfo
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- CN103881174A CN103881174A CN201410114658.5A CN201410114658A CN103881174A CN 103881174 A CN103881174 A CN 103881174A CN 201410114658 A CN201410114658 A CN 201410114658A CN 103881174 A CN103881174 A CN 103881174A
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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 high-quality environment-friendly reclaimed rubber with a low internetware and a fabrication method thereof, and belongs to the technical field of reclaimed rubber. The high-quality environment-friendly reclaimed rubber comprises the following raw materials in parts by mass: 100 parts of steel wire radial tire rubber powder, 1-2 parts of activating agent, 0-1.5 parts of rosin, 30-60 parts of running water and 1-2 parts of reducing aid. The high-quality environment-friendly reclaimed rubber with the low internetware is molded by an extruder in a straining manner after being desulfurized. Compared with the prior art, the crosslinking density (mol/cm<-3>) (namely a net structure) of the prepared reclaimed rubber is 1-2 orders of magnitude lower than that of the traditional reclaimed rubber, and the hardness is 38-42A. After 10-20 parts of natural rubber base formula is added, the main performances such as the tensile strength of a sizing material are equivalent to these of pure natural rubber, the phenomenon that the performance of the traditional reclaimed rubber is worse than that of the pure natural rubber after the natural rubber base formula is added is changed, and the quality of the reclaimed rubber is much higher than that of the traditional reclaimed rubber when the high-quality environment-friendly reclaimed rubber is applied to rubber. The high-quality environment-friendly reclaimed rubber is molded by the extruder in a straining manner, and the reclaimed rubber is clean and free of impurity, and more energy-saving, efficient and environment-friendly than the traditional process.
Description
Technical field
The present invention relates to the regeneration techniques of waste old, particularly one utilizes waste old to prepare low net structure high-quality environment protective reclaimed rubber and making method.
Background technology
The reclaimed rubber of producing on present society, as high-strength reclaimed rubber, meticulous reclaimed rubber, common reclaimed rubber etc., these conventional regeneration glue cross-linking densities are high, and reticulated structure is many, belongs to high reticulated structure reclaimed rubber, is called for short high net structure reclaimed rubber; These reticulated structures are different from linear rubber molecule structure, after being incorporated in the rubber such as natural gum, poor with the consistency of rubber, disperse inhomogeneous, processing performance is poor, directly affects the performance of sizing material, and the main performance index such as the sizing material tensile strength of made are all poor than the sizing material of pure glue; In conventional regeneration glue formula, all use a large amount of coal tar wet goods tenderizers, the reclaimed rubber of producing and all not environmental protection of production environment, material after desulfurization need to be with many refiner refinings, and power consumption is large, employment is many, production efficiency is low, and these problems are perplexing reclaimed rubber industry always.
Summary of the invention
The above-mentioned difficult problem existing in order to solve prior art, the invention provides a kind of low net structure high-quality environment protective reclaimed rubber and preparation method.
The present invention realizes with following technical scheme: a kind of low net structure high-quality environment protective reclaimed rubber, and taking waste steel wire radial-ply tyre as main raw material, concrete raw material and mass parts are: 100 parts of steel wire radial-ply tyre rubber powders; Activator 1-2 part; Rosin 0-1.5; Tap water 30-60 part; Reduction auxiliary agent 1-2 part;
Described activator is activator 420, and major ingredient is: 2,2-curing two (6-tertiary butyl Pyrogentisinic Acid);
Described reduction auxiliary agent has No. 1, auxiliary agent of reduction or No. 2, auxiliary agent of reduction; Described No. 1 main component of reduction auxiliary agent is: iron protoxide, 10～20 parts; Phosphite, 60～80 parts; Oxidation inhibitor 1520 (2,4-bis-(n-octylthiomethylene)-6-methylphenol), 3～8 parts; Described No. 2 main components of reduction auxiliary agent are: iron protoxide, 20～30 parts; Phosphite, 60～70 parts; Oxidation inhibitor 1520 (2,4-bis-(n-octylthiomethylene)-6-methylphenol), 2～5 parts
The preparation method of above-mentioned low net structure high-quality environment protective reclaimed rubber, concrete steps are as follows:
1) steel wire radial-ply tyre rubber powder, activator, rosin and tap water are added in digester, heating makes material progressively be warmed up to 210-220 DEG C, pressure 1.8-2.1MPa, closes heating power supply;
2) stir 50-80 minute, stirring velocity is 25-35 rev/min;
3) continue heating, make temperature of charge be elevated to 240-265 DEG C, pressure is 2.7-3.3MPa, pressurize 20-70 minute;
4) exhaust release, open tank door, add reduction auxiliary agent No. 1 or No. 2, stir discharging in 5-15 minute; Stirring velocity is 25-35 rev/min;
5) will expect to introduce twin-screw extrusion train line, extrude, filtration, moulding, obtain low net structure high-quality environment protective reclaimed rubber.
Such scheme has changed the preparation technology of raw material ratio and reclaimed rubber, sulfur removal technology parameter and order of addition(of ingredients) are improved especially, first steel wire radial-ply tyre rubber powder, activator, rosin and tap water are added in digester, after 2 times heat up, stir, add again reduction auxiliary agent, prevent that airborne oxygen from, to material oxidation and again crosslinked, stirring discharging in 5-15 minute, will expect to introduce twin-screw extrusion train line, extrude, filtration, moulding, obtain low net structure high-quality environment protective reclaimed rubber.
Compared with present technology, the reclaimed rubber cross-linking density mol/cm that the present invention makes
-3it is reticulated structure, than the low 1-2 of a conventional regeneration glue order of magnitude, hardness 38-42 Shao A, after adding in natural gum basic components by 10-20 part, the salient featuress such as the tensile strength of sizing material are suitable with pure natural glue sizing material, having changed conventional regeneration glue adds after natural gum basic components, properties of rubber is all than the poor phenomenon of pure natural glue sizing material, and while application in rubber, its quality is far above conventional regeneration glue; The present invention is without tenderizer, the equal environmental protection of the reclaimed rubber making and production environment; The present invention is with extruding machine filter gum forming, and reclaimed rubber cleans inclusion-free,, environmental protection more energy-conservation, efficient than traditional technology.
The invention has the beneficial effects as follows: because the present invention improves at basic recipe composition and proportioning and processing parameter and feed way, so the reclaimed rubber cross-linking density of producing is low, reticulated structure is few, after being incorporated in the rubber such as natural gum, good with the consistency of rubber, be uniformly dispersed, processing performance is good, and the performance of special sizing material meets or exceeds the performance of gum rubber.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1:
Formula: steel wire radial-ply tyre rubber powder, 100 parts; Activator, 1.2 parts; Rosin, 1.5; Tap water, 40 parts; No. 1, reduction auxiliary agent, 1.2 parts.
Technique and processing parameter: by steel wire radial-ply tyre rubber powder (26 order), activator 420 ［ provides (business product) by Huai-Hai, Bangbu auxiliary reagent factory, major ingredient is: 2, 2-curing two (6-tertiary butyl Pyrogentisinic Acid) ］, rosin (industrial goods) and tap water, add in digester, material is progressively warmed up to 220 DEG C, pressure 1.9-2.1MPa, close heating power supply, stir 45 minutes, temperature continues to bring up to 255-265 DEG C, pressure is 2.95-3.3MPa, pressurize 30 minutes, exhaust release, open tank door, add reduction auxiliary agent ［ to be provided by rubber recycle engineering and technological research development centre, Jiangsu for No. 1, main component is: iron protoxide, 10～20 parts, phosphite, 60～80 parts, oxidation inhibitor 1520 (2,4-bis-(n-octylthiomethylene)-6-methylphenol), 3～8 parts ］, stir discharging 6 minutes.To expect to introduce twin-screw extrusion train line, extrude, filtration, moulding, obtain low net structure high-quality environment protective reclaimed rubber.
Embodiment 2:
Formula: steel wire radial-ply tyre rubber powder, 100 parts; Activator, 2 parts; Tap water, 40 parts; No. 2, reduction auxiliary agent, 2.0 parts.
Technique and processing parameter: by steel wire radial-ply tyre rubber powder (26 order), activator 420, tap water, add in digester, material is progressively warmed up to 210 DEG C, pressure 1.8-2.0MPa, close heating power supply, stir 70 minutes, temperature continues to bring up to 240-250 DEG C, pressure is 2.8-3.0MPa, pressurize 70 minutes, exhaust release, open tank door, No. 2 ［ provided by rubber recycle engineering and technological research development centre, Jiangsu, main component is: iron protoxide, 20～30 parts to add reduction auxiliary agent; Phosphite, 60～70 parts; Oxidation inhibitor 1520 (2,4-bis-(n-octylthiomethylene)-6-methylphenol), 2～5 parts ］, stir discharging in 14 minutes.To expect to introduce twin-screw extrusion train line, extrude, filtration, moulding,
Must low net structure high-quality environment protective reclaimed rubber.
Contrast experiment: provide respectively reclaimed rubber and the present invention of producing with traditional technology and formula below in conjunction with contrast experiment
Performance comparison (table 3, table 4) while mixing 10 parts, 20 parts in the cross-linking density value contrast (table 1, table 2) of the low net structure high-quality environment protective reclaimed rubber of producing and natural gum basic components.
Table 1, cross-linking density contrast
Note: high-tenacity, common, meticulous, low net structure represent respectively: high-strength reclaimed rubber, common reclaimed rubber, meticulous reclaimed rubber, low net structure high-quality environment protective reclaimed rubber.The performance of its each reclaimed rubber is as following table 2.
As seen from Table 1 and Table 2, low net structure high-quality environment protective reclaimed rubber, than the low 1-2 of a conventional regeneration glue cross-linking density order of magnitude, illustrates that the cross-linked structure of this reclaimed rubber is lower than conventional regeneration glue,
Table 3, in the natural rubber basis that does not add carbon black, mix after with pure glue and other reclaimed rubber performance comparison
Note: 1. formula: No. 1, NR mark, variable; Zinc oxide, 5; Stearic acid, 2; Anti-aging agent PBN, 1; Altax, 1; Sulphur, 2.5; Reclaimed rubber, variable.Cure conditions is: 143 DEG C × 25min.
Table 4, in the natural rubber basis that adds carbon black, mix and pure glue and other reclaimed rubber performance comparison
Note: formula: No. 1, NR mark, variable; Zinc oxide, 5; Stearic acid, 2; Anti-aging agent PBN, 1; Accelerator NS, 0.7; Sulphur, 2.25; Carbon black 330,35.Cure conditions: 143 DEG C × 25min.
From table 3, table 4, find out, after conventional regeneration glue adds, the equal variation of performance (differing larger with gum rubber performance), and after low net structure reclaimed rubber adds, its hardness improves Shao 0-2 A (suitable with gum rubber performance), tensile strength improves 0-0.48Mpa (suitable with gum rubber performance), and elongation rate of tensile failure is in a slight decrease, but than good many of conventional regeneration glue.Find out that from use properties the quality of this reclaimed rubber is higher than conventional regeneration glue.
Conclusion: do not add tenderizer in formula, reclaimed rubber and the production process produced are destitute of smell, and not only reclaimed rubber is environmental protection, and production environment is environmental protection also.Rubber powder softness after desulfurization, reclaimed rubber hardness 40 Shao A left and right, lower than conventional regeneration glue hardness (Shao 60-75 A), so adopt forcing machine train line to extrude, filter glue, moulding, do not adopt many refiner refinery practices, level of automation is high, economize people, power saving, production efficiency is high, and production cost is low, the clean inclusion-free of reclaimed rubber of producing.
Claims (2)
1. a low net structure high-quality environment protective reclaimed rubber, taking waste steel wire radial-ply tyre as main raw material, concrete raw material and mass parts are: 100 parts of steel wire radial-ply tyre rubber powders; Activator 1-2 part; Rosin 0-1.5; Tap water 30-60 part; Reduction auxiliary agent 1-2 part;
Described activator is activator 420, and major ingredient is: 2,2-curing two (6-tertiary butyl Pyrogentisinic Acid);
Described reduction auxiliary agent has No. 1, auxiliary agent of reduction or No. 2, auxiliary agent of reduction; Described No. 1 main component of reduction auxiliary agent is: iron protoxide, 10～20 parts; Phosphite, 60～80 parts; Oxidation inhibitor 1520 (2,4-bis-(n-octylthiomethylene)-6-methylphenol), 3～8 parts; Described No. 2 main components of reduction auxiliary agent are: iron protoxide, 20～30 parts; Phosphite, 60～70 parts; Oxidation inhibitor 1520 (2,4-bis-(n-octylthiomethylene)-6-methylphenol), 2～5 parts.
2. a preparation method for low net structure high-quality environment protective reclaimed rubber claimed in claim 1, is characterized in that: concrete steps are as follows:
1) steel wire radial-ply tyre rubber powder, activator, rosin and tap water are added in digester, heating makes material progressively be warmed up to 210-220 DEG C, pressure 1.8-2.1MPa, closes heating power supply;
2) stir 50-80 minute, stirring velocity is 25-35 rev/min;
3) continue heating, make temperature of charge be elevated to 240-265 DEG C, pressure is 2.7-3.3MPa, pressurize 20-70 minute;
4) exhaust release, open tank door, add reduction auxiliary agent No. 1 or No. 2, stir discharging in 5-15 minute; Stirring velocity is 25-35 rev/min;
5) will expect to introduce twin-screw extrusion train line, extrude, filtration, moulding, obtain low net structure high-quality environment protective reclaimed rubber.
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| CN201410114658.5A CN103881174A (en) | 2014-03-25 | 2014-03-25 | High-quality environment-friendly reclaimed rubber with low internetware and fabrication method thereof |
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| CN201410114658.5A CN103881174A (en) | 2014-03-25 | 2014-03-25 | High-quality environment-friendly reclaimed rubber with low internetware and fabrication method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104592545A (en) * | 2015-02-15 | 2015-05-06 | 朱勇健 | Desulfurization decrosslinking method for polyurethane material |
| CN105017561A (en) * | 2015-08-05 | 2015-11-04 | 徐州工业职业技术学院 | Method for preparing environment-friendly reclaimed rubber through two-stage desulfurization |
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| CN102501335A (en) * | 2011-10-26 | 2012-06-20 | 河北瑞威科技有限公司 | Novel process for reducing and regenerating waster rubber continuously |
| CN102604151A (en) * | 2012-03-16 | 2012-07-25 | 徐州工业职业技术学院 | Method for preparing environmental-friendly high-tenacity high-temperature reclaimed rubber |
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- 2014-03-25 CN CN201410114658.5A patent/CN103881174A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102501335A (en) * | 2011-10-26 | 2012-06-20 | 河北瑞威科技有限公司 | Novel process for reducing and regenerating waster rubber continuously |
| CN102604151A (en) * | 2012-03-16 | 2012-07-25 | 徐州工业职业技术学院 | Method for preparing environmental-friendly high-tenacity high-temperature reclaimed rubber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104592545A (en) * | 2015-02-15 | 2015-05-06 | 朱勇健 | Desulfurization decrosslinking method for polyurethane material |
| CN105017561A (en) * | 2015-08-05 | 2015-11-04 | 徐州工业职业技术学院 | Method for preparing environment-friendly reclaimed rubber through two-stage desulfurization |
| CN105017561B (en) * | 2015-08-05 | 2018-02-06 | 徐州工业职业技术学院 | The method that two sections of desulfurization prepare environmental friendly regenerated glue |
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Application publication date: 20140625 |