CN104987561A - Production method for thermoplastic elastomer based on ethylene propylene rubber reclaimed rubber - Google Patents
Production method for thermoplastic elastomer based on ethylene propylene rubber reclaimed rubber Download PDFInfo
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- CN104987561A CN104987561A CN201510406522.6A CN201510406522A CN104987561A CN 104987561 A CN104987561 A CN 104987561A CN 201510406522 A CN201510406522 A CN 201510406522A CN 104987561 A CN104987561 A CN 104987561A
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Abstract
The invention discloses a production method for a thermoplastic elastomer based on ethylene propylene rubber reclaimed rubber, the production method comprises the following method: a, preparing raw materials, namely the ethylene propylene rubber reclaimed rubber, polyethylene, vulkacit, furnace black, stearic acid, talcum powder, magnesium oxide, nano silicon dioxide and thionyl chloride; b, preparing, mixing the ethylene propylene rubber reclaimed rubber and the polyethylene firstly to prepare a premix of the ethylene propylene rubber reclaimed rubber/ polyethylene; mixing the vulkacit and the rest of the raw materials and the ethylene propylene rubber reclaimed rubber/ polyethylene premix on a low temperature mixing mill; performing dynamic vulcanization in the mixing mill after being mixed uniformly, and then performing batch-off, chopping and preparing granules, and then the granules are sent to an injection molding machine for extruding; performing cold cutting to obtain the thermoplastic elastomer based on ethylene propylene rubber reclaimed rubber. According to the production method, the thermoplastic elastomer is prepared from the ethylene propylene rubber reclaimed rubber with lower cost, the production cost is reduced, and greater economic benefit is obtained.
Description
Technical field
The present invention relates to the production method of reclaimed rubber analog thermoplastic elastomer, belong to chemical field.
Background technology
The synthetic rubber that ethylene-propylene rubber(EPR) is is principal monomer with ethene, propylene, according to the difference of monomer composition in molecular chain, have ethylene propylene rubber and terpolymer EP rubber point, the former is the multipolymer of ethene and propylene, represent with EPM, the latter is the multipolymer of ethene, propylene and a small amount of non-conjugated diene hydrocarbon Third monomer, represents with EPDM.Both are referred to as ethylene-propylene rubber(EPR), i.e. ethylene propylene rubber (EPR).Be widely used in trolley part, building water-proof material, electric wire and cable jacket, heat-resistant rubber hose, adhesive tape, automotive sealant, lubricating oil additive and other goods.
Regenerated rubber (reclaimed rubber) is rubber that the leftover bits of sulfuration in producing with rubber item become for Raw material processing, that have certain plasticity number, can reuse.
Thermoplastic elastomer had both had the processing characteristics of thermoplastics, had again the physicals of vulcanized rubber, was the advantageous combination of plastics and rubber advantage.Thermoplastic elastomer is capturing the manor originally only belonging to vulcanized rubber without restraint.In the recent decade, the fast development of electronic apparatus, communication and automobile industry has driven the high speed development in thermoplastic elastomer city.Thermoplastic elastomer (TPE) has the physical and mechanical properties of vulcanized rubber and the performance of technical process of thermoplastics.Owing to not needing through hot sulfurization, general device of plastic processing is used to complete products production.This feature makes rubber industry Production Flow Chart shorten 1/4, energy efficient 25%-40%, raises the efficiency 10 times-20 times, can be rated as rubber industry materials and process technological revolution again.
Summary of the invention
The object of the invention is to provide a kind of method of producing thermoplastic elastomer based on ethylene-propylene rubber(EPR) reclaimed rubber, and this production method utilizes lower-cost ethylene-propylene rubber(EPR) reclaimed rubber to obtain, and can reduce production cost, obtains larger economic benefit.
The solution of the present invention is as follows: a kind of method of producing thermoplastic elastomer based on ethylene-propylene rubber(EPR) reclaimed rubber, and concrete steps are as follows:
The preparation of a, raw material, ethylene-propylene rubber(EPR) reclaimed rubber, polyethylene, vulcanization accelerator, furnace treated black, stearic acid, talcum powder, magnesium oxide, nano silicon and thionyl chloride;
B, preparation, first by ethylene-propylene rubber(EPR) reclaimed rubber and polyethylene pre-mixing, make ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition; Vulcanization accelerator and remaining raw material are mixed with ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition in low temperature mill, carry out dynamic vulcanization after mixing at 150-200 DEG C in Banbury mixer, curing time is 5-20min, then bottom sheet;
C, shaping, test piece lower after step b process is put on stock cutter and shreds, make pellet, then feeding injection moulding machine is extruded at 150-180 DEG C, then cold cut.
Further, in step a, each parts by weight of raw materials is as follows: ethylene-propylene rubber(EPR) reclaimed rubber 80-120, polyethylene 60-100, vulcanization accelerator 5-17, furnace treated black 20-80, stearic acid 1-5, talcum powder 1-5, magnesium oxide 1-5, nano silicon 1 and thionyl chloride 1-3.
Preferential this, in step a, each parts by weight of raw materials is as follows: ethylene-propylene rubber(EPR) reclaimed rubber 100, polyethylene 80, vulcanization accelerator 10, furnace treated black 45, stearic acid 2, talcum powder 3, magnesium oxide 2, nano silicon 1 and thionyl chloride 2.
Further, described vulcanization accelerator is the one in 2-benzothiazolyl mercaptan, N cyclohexyl 2 benzothiazole sulfenamide, vulkacit D, 2-thiol group tetrahydroglyoxaline (ethylene thiourea), two butyl disulfide amido acid zinc.
Produce the ethylene-propylene rubber(EPR)/rubber/polythene thermoplastic elastomer of gained through the present invention, stretch intensity 7.41MPa, 300% stress at definite elongation 3.86MPa, elongation rate of tensile failure 550%, break tension set 14%, comprehensive mechanical property is better.
The present invention obtains ethylene-propylene rubber(EPR)/rubber/polythene thermoplastic elastomer by ethylene-propylene rubber(EPR) reclaimed rubber, and production cost is low, high financial profit.
Embodiment
Embodiment 1
Based on a method of producing thermoplastic elastomer for ethylene-propylene rubber(EPR) reclaimed rubber, step is as follows:
The preparation of a, raw material, ethylene-propylene rubber(EPR) reclaimed rubber 100, polyethylene 80 ,-benzothiazolyl mercaptan 10, furnace treated black 45, stearic acid 2, talcum powder 3, magnesium oxide 2, nano silicon 1 and thionyl chloride 2.
B, preparation, first by ethylene-propylene rubber(EPR) reclaimed rubber and polyethylene pre-mixing, make ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition; Vulcanization accelerator and remaining raw material are mixed with ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition in low temperature mill, carry out dynamic vulcanization after mixing at 180 DEG C in Banbury mixer, curing time is 10min, then bottom sheet;
C, shaping, test piece lower after step b process is put on stock cutter and shreds, make pellet, then feeding injection moulding machine is extruded at 165 DEG C, then cold cut.
Embodiment 2
Based on a method of producing thermoplastic elastomer for ethylene-propylene rubber(EPR) reclaimed rubber, step is as follows:
The preparation of a, raw material, ethylene-propylene rubber(EPR) reclaimed rubber 90, polyethylene 70, N cyclohexyl 2 benzothiazole sulfenamide 6, furnace treated black 30, stearic acid 2, talcum powder 2, magnesium oxide 1, nano silicon 1 and thionyl chloride 2.
B, preparation, first by ethylene-propylene rubber(EPR) reclaimed rubber and polyethylene pre-mixing, make ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition; Vulcanization accelerator and remaining raw material are mixed with ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition in low temperature mill, carry out dynamic vulcanization after mixing at 180 DEG C in Banbury mixer, curing time is 10min, then bottom sheet;
C, shaping, test piece lower after step b process is put on stock cutter and shreds, make pellet, then feeding injection moulding machine is extruded at 169 DEG C, then cold cut.
Embodiment 3
Based on a method of producing thermoplastic elastomer for ethylene-propylene rubber(EPR) reclaimed rubber, concrete steps are as follows:
The preparation of a, raw material, in ethylene-propylene rubber(EPR) reclaimed rubber 110, polyethylene 90, two butyl disulfide amido acid zinc 15, furnace treated black 50, stearic acid 3, talcum powder 2, magnesium oxide 2, nano silicon 1 and thionyl chloride 3.
B, preparation, first by ethylene-propylene rubber(EPR) reclaimed rubber and polyethylene pre-mixing, make ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition; Vulcanization accelerator and remaining raw material are mixed with ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition in low temperature mill, carry out dynamic vulcanization after mixing at 200 DEG C in Banbury mixer, curing time is 16min, then bottom sheet;
C, shaping, test piece lower after step b process is put on stock cutter and shreds, make pellet, then feeding injection moulding machine is extruded at 180 DEG C, then cold cut.
Although give detailed description and explanation to the specific embodiment of the present invention above; but what should indicate is; we can carry out various equivalence according to conception of the present invention to above-mentioned embodiment and change and amendment; its function produced do not exceed that specification sheets contains yet spiritual time, all should within protection scope of the present invention.
Claims (4)
1. based on a method of producing thermoplastic elastomer for ethylene-propylene rubber(EPR) reclaimed rubber, it is characterized in that, step is as follows:
The preparation of a, raw material, ethylene-propylene rubber(EPR) reclaimed rubber, polyethylene, vulcanization accelerator, furnace treated black, stearic acid, talcum powder, magnesium oxide, nano silicon and thionyl chloride;
B, preparation, first by ethylene-propylene rubber(EPR) reclaimed rubber and polyethylene pre-mixing, make ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition; Vulcanization accelerator and remaining raw material are mixed with ethylene-propylene rubber(EPR) reclaimed rubber/polyethylene pre-composition in low temperature mill, carry out dynamic vulcanization after mixing at 150-200 DEG C in Banbury mixer, curing time is 5-20min, then bottom sheet;
C, shaping, test piece lower after step b process is put on stock cutter and shreds, make pellet, then feeding injection moulding machine is extruded at 150-180 DEG C, then cold cut.
2. a kind of method of producing thermoplastic elastomer based on ethylene-propylene rubber(EPR) reclaimed rubber according to claim 1, it is characterized in that, in step a, each parts by weight of raw materials is as follows: ethylene-propylene rubber(EPR) reclaimed rubber 80-120, polyethylene 60-100, vulcanization accelerator 5-17, furnace treated black 20-80, stearic acid 1-5, talcum powder 1-5, magnesium oxide 1-5, nano silicon 1 and thionyl chloride 1-3.
3. a kind of method of producing thermoplastic elastomer based on ethylene-propylene rubber(EPR) reclaimed rubber according to claim 1, it is characterized in that, in step a, each parts by weight of raw materials is as follows: ethylene-propylene rubber(EPR) reclaimed rubber 100, polyethylene 80, vulcanization accelerator 10, furnace treated black 45, stearic acid 2, talcum powder 3, magnesium oxide 2, nano silicon 1 and thionyl chloride 2.
4. a kind of method of producing thermoplastic elastomer based on ethylene-propylene rubber(EPR) reclaimed rubber according to claim 1, it is characterized in that, described vulcanization accelerator is the one in 2-benzothiazolyl mercaptan, N cyclohexyl 2 benzothiazole sulfenamide, vulkacit D, 2-thiol group tetrahydroglyoxaline (ethylene thiourea), two butyl disulfide amido acid zinc.
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| CN201510406522.6A CN104987561A (en) | 2015-07-09 | 2015-07-09 | Production method for thermoplastic elastomer based on ethylene propylene rubber reclaimed rubber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972215A (en) * | 2016-05-06 | 2016-09-28 | 浙江翔宇密封件有限公司 | Manufacturing method for high-speed rail hub bearing sealing ring |
| CN114085441A (en) * | 2021-11-30 | 2022-02-25 | 江苏宝利国际投资股份有限公司 | Micro-nano regenerated gum base thermoplastic elastomer and preparation method thereof |
-
2015
- 2015-07-09 CN CN201510406522.6A patent/CN104987561A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972215A (en) * | 2016-05-06 | 2016-09-28 | 浙江翔宇密封件有限公司 | Manufacturing method for high-speed rail hub bearing sealing ring |
| CN105972215B (en) * | 2016-05-06 | 2017-12-22 | 浙江翔宇密封件有限公司 | The preparation method of high ferro hub bearing sealing ring |
| CN114085441A (en) * | 2021-11-30 | 2022-02-25 | 江苏宝利国际投资股份有限公司 | Micro-nano regenerated gum base thermoplastic elastomer and preparation method thereof |
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Application publication date: 20151021 |
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