CN103772760A - Rubber composition taking natural rubber/carbon black and synthesized isoprene rubber/white carbon black as rubber master batch and preparation technique thereof - Google Patents
Rubber composition taking natural rubber/carbon black and synthesized isoprene rubber/white carbon black as rubber master batch and preparation technique thereof Download PDFInfo
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Abstract
The invention relates to a rubber composition taking natural rubber/carbon black and synthesized isoprene rubber/white carbon black as rubber master batch and a preparation technique thereof. Natural rubber/carbon black and synthesized isoprene rubber/white carbon black are premixed to prepare rubber master batch, and then rubber aids are added according to the composition ratio to prepare rubber compound. The carbon black master batch of the compound is prepared from the following raw materials in parts by weight: 100 parts of natural rubber, 5-120 parts of carbon black, preferentially 20-80 parts of carbon black, the ratio of the natural rubber to the synthesized isoprene rubber is 1:3-5:1, a certain ratio of the carbon black to the white carbon black and a certain ratio of the natural rubber to the synthesized isoprene rubber are kept, and the ratio of the two fillers is consistent with the ratio of the two kinds of rubber. The rubber compound prepared by the preparation technique has the advantages of good abrasive resistance, high elasticity and low heat generation, and can be used in a tire formula and used for other rubber products.
Description
Technical field
The present invention relates to rubber materials, particularly rubber item and rubber processing.
Background technology
Rubber energy waste in dynamic use procedure is one of its essential characteristic, and it is caused by sizing material hysteresis loss.When hysteresis loss increases, sizing material energy expenditure and heat-dissipating increase in dynamic deformation process, make the temperature rise of sizing material, and then the intensity of rubber unvulcanizate and wear resistance declined, and causes the early stage infringement of the goods such as tire; The more important thing is the rolling resistance that increases tire, increase fuel consumption (oil consumption), increase the quantity discharged of carbonic acid gas.
Numerous results of study show to use reinforcement precipitated silica filler can reduce the rolling resistance of tire in formula.Patent CN1539872A has proposed the rubber compounding that a kind of anti-slippery and tire drag balance each other, and composition components is polyolefine and carbon black, white carbon black, organosilane.Patent CN1141311A and patent CN1141313A disclose the tyre surface formula that dience rubber adds white carbon black and carbon black, and technique is traditional calendering process, add diene polymer to carry out filler and auxiliary agent mixing.Patent CN1134434A discloses elastomerics, silicon-dioxide, carbon black sizing material, and to carbon black loading, restriction is less than 30 mass parts to this patent, and silicon-dioxide and carbon black is also 3/1---30/1 scope by ratio.Patent CN1140129A regulation silica/carbon black is also at least 10: 1 by ratio, and carbon black loading is few, is unfavorable for wear-resisting.These patents are all to adopt traditional calendering process, and carbon black/white carbon black and auxiliary agent together add in rubber, and carbon black/white carbon black is unavoidably wanted the nonrubber components such as adsorption aid, has reduced the combination of filler and rubber, also can reduce wear resisting property simultaneously.
The invention is intended to design a kind of rubber combination by new calendering process, carbon black/white carbon black is first combined with rubber and sneaks into again other rubber ingredients, can under the wear-resisting prerequisite of maintenance, reduce the thermogenesis performance of sizing material, improve the elasticity of sizing material.
Summary of the invention
For prior art problem, the object of this invention is to provide a kind of rubber combination and complete processing thereof take natural rubber/carbon black, synthetic polyisoprenes rubber/white carbon black as rubber master batch, the innovation of this technique invention is to utilize solution synthetic polyisoprenes component of polymer single, the advantage that nonrubber component is few, in the time preparing synthetic polyisoprenes white carbon black rubber master batch, nonrubber component can not adsorbed in white carbon black surface, pass through again action of coupling agents, white carbon black can be better combined with rubber, reach the object that improves wear-resisting reduction heat-dissipating.The rubber combination of preparing according to the technology of the present invention, can keep, under the prerequisite of wear resistance, reducing the heat-dissipating of tire and the rolling resistance of tire for tire tread.
The present invention is further designed into following embodiment:
Containing rubber combination and the preparation technology of natural rubber/carbon black and synthetic polyisoprenes rubber/white carbon black rubber master batch, it is characterized in that:
Masterbatch process:
Carbon black rubber master batch technique: natural gum and carbon black be mixing generation carbon black rubber master batch in Banbury mixer;
White carbon black rubber master batch technique: synthetic polyisoprenes rubber and white carbon black, coupling agent be mixing generation white carbon black rubber master batch in Banbury mixer;
Finished composition technique:
By described carbon black rubber master batch, white carbon black rubber master batch, anti-aging agent, promoting agent, promotor, vulcanizing agent in the mixing rubber combination that is prepared into of composition ratio.
According to above-mentioned preparation method, in total consumption 100 mass parts of rubber, the amount ratio of natural rubber and synthetic polyisoprenes rubber is 1: 3-5: 1; The usage ratio of carbon black/white carbon black usage ratio and natural gum/synthetic polyisoprenes rubber keeps certain proportion, generally makes the ratio of two kinds of fillers and two kinds of rubber ratio be consistent; Total consumption of carbon black and white carbon black is 5-120 mass parts, preferably 10-100 mass parts;
According to above-mentioned preparation method, carbon black rubber master batch is in natural rubber 100 mass parts, and carbon black loading is 5-100 part, preferably 20-80 part; White carbon black rubber master batch is in synthetic polyisoprenes rubber 100 mass parts, and white carbon black consumption is 5-100 part, preferably 20-80 part, the preferred 1wt%-15wt% of 0.5wt%-20wt% that coupling agent consumption is white carbon black;
According to above-mentioned preparation method, natural rubber comprises standard rubber, gutta-percha, smoke sheet rubber, guayule; Wherein synthetic polyisoprenes rubber is cis-polyisoprene rubber, trans polyisoprene rubber or their mixture.
According to above-mentioned preparation method, wherein said carbon black is any carbon black, and preferably STSA specific surface area is 70-180m
2/ g, compression DBP absorption value is 60-150 (10
-5m
3/ kg) carbon black; Described white carbon black is any white carbon black, preferably precipitated silica, and specific surface area is 50-200m
2/ g.
According to above-mentioned preparation method, wherein said coupling agent comprises the most frequently used two (triethoxy propyl silane) tetrasulfides and disulphide, 3-thiocyanogen propyl group-triethoxyl silane, Y-sulfydryl Trimethoxy silane, zirconium ester coupling agent, phthalate ester coupling agent, nitro coupling agent, alcohol compound, and described alcohol compound includes but not limited to propyl alcohol, butanols, ethylene glycol, polyoxyethylene glycol and derivative thereof.
According to above-mentioned, wherein activator be the combination of metal oxide and lipid acid and fatty acid metal soap salt one or more, described metal oxide be zinc oxide, magnesium oxide etc. one or more, described fatty acid metal soap salt be Zinic stearas, zinc borate etc. one or more.
According to above-mentioned preparation method, wherein anti-aging agent comprise amines antioxidants, quinoline type antioxidant, benzimidazoles anti-aging agent, protection wax one or more.
According to above-mentioned rubber combination, wherein promotor includes but not limited to sulfenamide type accelerators, thiazole accelerator, thiuram type accelerator, guanidine acclerators or their combination, and vulcanizing agent includes but not limited to Sulfur, insoluble thin Huang, oil-filled Sulfur, sulphur-donor or their combination.
The invention still further relates to a kind of rubber unvulcanizate of preparing according to above-mentioned preparation method or cross-linked rubber.
The calendering process the invention further relates to comprises following three processing steps:
Processing step one:
Carbon black rubber master batch: natural rubber and carbon black are mixing in arbitrary Banbury mixer, rotating speed is 20-90rpm, and mixing time is 1-10min, and dump temperature is less than 165 ℃;
White carbon black rubber master batch: synthetic polyisoprenes rubber and white carbon black and a certain amount of organic coupling agent are mixing in arbitrary Banbury mixer, rotating speed is 20-90rpm, mixing time is 1-10min, and dump temperature control is lower than 170 ℃, and melting temperature keeps 0.5-4min at 130-165 ℃;
Processing step two:
Carbon black rubber master batch is mixed to 0.5min-3min with white carbon black rubber master batch according to composition ratio in Banbury mixer, after add activator, anti-aging agent etc., mixing rotating speed is 20-90rpm, mixing time is 1-10min;
Processing step three:
Rubber master batch and vulcanizing agent, promotor that step 2 is produced are mixing in arbitrary Banbury mixer, and rotating speed is 10-40rpm, and mixing time is 1-8min.
Rubber combination described in the present invention is in total consumption 100 mass parts of rubber, total consumption of carbon black and white carbon black is 5-120 mass parts, preferably 10-100 mass parts, wherein said carbon black is any carbon black, the carbon black that preferably STSA specific surface area is 70-180m2/g, the preferred specific surface area of white carbon black is 50200m2/g precipitated silica.The amount ratio of natural rubber and synthetic polyisoprenes rubber is 1: 3--5: 1.The usage ratio of the usage ratio of carbon black/white carbon black and natural gum/synthetic polyisoprenes rubber is generally consistent, also can be different.
Described activator can be selected zinc oxide, stearic acid, Zinic stearas, magnesium oxide, zinc borate etc., and consumption is generally 1-10 mass parts, preferably 2-5 mass parts; Described anti-aging agent is p phenylenediamine type antioxidant, quinoline type antioxidant, benzimidazoles anti-aging agent or its composition, and total amount is no more than 8 mass parts, preferably 1-6 mass parts; Described vulcanizing agent can be selected common sulfur flour, oil-filled Sulfur, and insoluble sulfuy, oil-filled insoluble sulfuy etc., usage quantity is by effective content, and general consumption is 0.2-10 mass parts, preferable amount 0.5-5 mass parts; Described promotor is thiuram type accelerator, sulfenamide type accelerators, carbaminate class promotor, guanidine acclerators or their combination, and consumption is generally 0.2-8 mass parts, preferably 0.2-5 mass parts.
Embodiment
Further describe the present invention with embodiment below, but scope of the present invention is not subject to the restriction of these embodiment.
Plant and instrument prepared by table 1 rubber sample
| Sequence number | Device name | Specifications and models | Manufacturer |
| 1 | Banbury mixer | XSM-1／10-120 | Shanghai Kechuang rubber and plastics machine equipment company limited |
| 2 | Mill | 152.5*320 | Zhanjiang Machine Factory, Guangdong Prov. |
| 3 | Vulcanizing press | XLB-D600*600 | Huzhou, Zhejiang east Machinery Co., Ltd. |
The testing method of table 2 vulcanizating glue physical performance and instrument
Following pharmaceutical chemicals is applied to embodiment and comparative example:
20# standard rubber: Malaysian long hair rubber plant;
Synthesizing cis polyisoprene IR: her Cohan novel material company limited of Qingdao;
Synthesis of trans polyisoprene TPI: Qingdao Cefpirome Culfate Materials Co., Ltd;
Organo silane coupling agent X50S: contain 50% pair of (3-ethoxy-c base silane) tetrasulfide, contain 50%N330 carbon black, win wound haze star (sunshine) chemical industry company limited;
N115, N234: Cabot (China) company limited;
White carbon black 833MP: Wuxi Heng Chenggui industry company limited;
Zinc oxide: Dalian zinc oxide factory;
Stearic acid: PF1808, Malaysian Li Cheng company limited;
Antioxidant 4020: N-(1.3--methyl butyl)-N'-diphenyl-para-phenylene diamine, Jiangsu Sheng'Ao Chemical Technology Co., Ltd;
Anti-aging agent RD: 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance, Tianjin Ke Mai auxiliary agent company limited;
Protection wax: hundred U.S. auspicious speciality chemical (Suzhou) company limiteds;
Accelerant CZ: N-cyclohexyl 2-[4-morpholinodithio sulphenamide, Shandong Shang Shun Chemical Co., Ltd.;
Sulfur: Qingdao gold and jade rib Industrial Co., Ltd.;
Amounts of components in following examples and comparative example is mass parts.
Comparative example 1
Formula: SMR2050; Synthetic polyisoprenes rubber IR50; N234 carbon black 25; White carbon black 833MP25; Silane coupling agent X50S6; Anti-aging agent RD 1.5; Antioxidant 4020 2; Zinc oxide 3; Stearic acid 2; Protection wax 1; Sulfur 1; Accelerant CZ 1.5.
One section of calendering process: add 50 mass parts SMR20 and 50 mass parts IR in the Banbury mixer that is 90rpm at rotating speed, mixing 60 seconds, carry floating weight and add 25 mass parts carbon black N234,25 mass parts white carbon black 833MP, 6 mass parts silane coupling agent X50S, 1.5 mass parts anti-aging agent RDs, 3 mass parts zinc oxide, 2 mass parts boron resin acids, mass parts antioxidant 4020, protection wax 1, after mixing 60 seconds, carry floating weight, cleaning, mixing 90 seconds binder removals again, it is 210 seconds that pressurization is done time, 158 ℃ of dump temperatures;
Finished composition calendering process: the banburying machine that is 60rpm at rotating speed adds one section of mixing rubber master batch of 165.5 mass parts, carries floating weight and adds 1 mass parts Sulfur and 1.5 mass parts accelerant CZs after plasticating 30 seconds; Cleaning afterwards in mixing 60 seconds; Binder removal after mixing 30 seconds, pressurization mixing time is 120 seconds, 103 ℃ of dump temperatures;
Embodiment 1
Formula: SMR2050; Synthetic polyisoprenes rubber IR50; N234 carbon black 25; White carbon black 25; Silane coupling agent X50S6; Anti-aging agent RD 1.5; Antioxidant 4020 2; Protection wax 1; Zinc oxide 3; Stearic acid 2; Sulfur 1; Accelerant CZ 1.5.
One section of calendering process:
Carbon black rubber master batch technique: carry floating weight after adding 50 mass parts SMR20 to plasticate in the Banbury mixer that is 90rpm at rotating speed 50 seconds, add 17 mass parts carbon black N234, after mixing 90 seconds, propose floating weight cleaning, add residue 8 mass parts carbon black N234, within mixing 30 seconds, propose floating weight cleaning, mixing 30 seconds binder removals; Pressurization mixing time is 200 seconds, 157 ℃ of dump temperatures.
White carbon black rubber master batch technique: add 50 mass parts to synthesize isoprene IR in the Banbury mixer that is 90rpm at rotating speed, carry floating weight after mixing 50 seconds and add 17 mass parts white carbon blacks and 4 mass parts silane coupling agent X50S; After mixing 60 seconds, carry floating weight and add residue 8 mass parts white carbon blacks and 2 mass parts silane coupling agent X50S; Within mixing 30 seconds, propose floating weight cleaning, mixing 60 seconds binder removals; Pressurization mixing time is 200 seconds, 154 ℃ of dump temperatures;
Two-stage mixing process:
In the Banbury mixer that is 90rpm at rotating speed, add 75 mass parts carbon black rubber master batch and 81 mass parts white carbon black rubber master batch, within mixing 80 seconds, carry floating weight, add 1.5 mass parts anti-aging agent RDs, 2 mass parts antioxidant 4020s, 1 mass parts protection wax, 3 mass parts zinc oxide, 2 mass parts stearic acid; Cleaning in mixing 70 seconds; Mixing 30 seconds binder removals again; Pressurization mixing time is 180 seconds, 153 ℃ of dump temperatures;
Finished composition calendering process:
In the Banbury mixer that is 60rpm at rotating speed, add 165.5 mass parts two-stage mixing rubber master batch, within mixing 30 seconds, carry floating weight and add 1 mass parts Sulfur and 1.5 mass parts accelerant CZs; Cleaning in mixing 60 seconds; Mixing 30 seconds binder removals again, pressurization mixing time is 120 seconds, 105 ℃ of dump temperatures.
The performance comparison of table 3: embodiment 1 and comparative example 1
Embodiment 1 is compared with comparative example 1, and elasticity is high, and compression heat generation reduces, and wear hardness improves, and illustrates that heat-dissipating reduces when adopting calendering process of the present invention, and elasticity improves, and wear resistance improves.
Comparative example 2
Formula: SMR20100; N115 carbon black 20; White carbon black 30; Silane coupling agent XS0S7.2; Anti-aging agent RD 1.5; Antioxidant 4020 2; Protection wax 1; Zinc oxide 3; Stearic acid 2; Sulfur 1; Accelerant CZ 1.5.
One section of calendering process:
In the Banbury mixer that is 90rpm at rotating speed, add 20# standard rubber 100 mass parts, after plasticating 60 seconds, add 20 mass parts carbon black N115,30 mass parts white carbon blacks, 7.2 mass parts X50S, 3 mass parts zinc oxide, 2 mass parts stearic acid, 1.5 mass parts anti-aging agent RDs, 2 mass parts antioxidant 4020s, 1 mass parts protection wax, within mixing 60 seconds, propose floating weight cleaning, mixing 90 seconds binder removals, pressurization mixing time is 210 seconds, 163 ℃ of dump temperatures.
Finished composition calendering process:
In the Banbury mixer that is 60rpm at rotating speed, add one section of rubber master batch of 166.7 mass parts, after mixing 30 seconds, carry floating weight and add 1 mass parts Sulfur, 1.5 mass parts accelerant CZs, cleaning in mixing 60 seconds, mixing 30 seconds binder removals again, pressurization mixing time is 120 seconds, dump temperature is 98 ℃.
Embodiment 2
Formula: 20# standard rubbers 40; Using trans-polyisoprene TPI20; Cis-polyisoprene IR40; N115 carbon black 20; White carbon black 30; Silane coupling agent 7.2; Anti-aging agent RD 1.5; Antioxidant 4020 2; Protection wax 1; Zinc oxide 3; Stearic acid 2; Sulfur 1; Accelerant CZ 1.5.
One section of calendering process:
Carbon black rubber master batch technique: add 20# standard rubber 40 mass parts in the Banbury mixer that is 90rpm at rotating speed, after plasticating 50 seconds, add 13 mass parts carbon black N115, within mixing 80 seconds, propose floating weight cleaning, add 7 mass parts carbon black N115, within mixing 30 seconds, propose floating weight cleaning, mixing 40 seconds binder removals, pressurization mixing time is 200 seconds, 165 ℃ of dump temperatures.
White carbon black rubber master batch technique: add synthesis of trans polyisoprene 20 mass parts, cis-polyisoprene 40 mass parts in the Banbury mixer that is 90rpm at rotating speed.After mixing 50 seconds, carry floating weight and add 20 mass parts white carbon blacks and 4.8 mass parts silane coupling agent X50S, after mixing 80 seconds, propose floating weight cleaning, add 10 mass parts white carbon blacks and 2.4 mass parts silane X50S, within mixing 40 seconds, propose floating weight cleaning, mixing 40 seconds binder removals; Pressurization mixing time is 210 seconds, and dump temperature is 158 ℃.
Two-stage mixing process:
In the Banbury mixer that is 90rpm at rotating speed, add 60 mass parts carbon black rubber master batch, and 97.2 mass parts white carbon black rubber master batch, within mixing 60 seconds, carry floating weight and add 3 mass parts zinc oxide, 2 mass parts stearic acid, 1.5 mass parts anti-aging agent RDs, 2 mass parts antioxidant 4020s, 1 mass parts protection wax, cleaning in mixing 80 seconds, discharged two sections of rubber master batch at mixing 30 seconds, pressurization mixing time is 170 seconds, and dump temperature is 154 ℃.
Finished composition calendering process:
In the Banbury mixer that is 60r/min at rotating speed, add two sections of rubber master batch of 166.7 mass parts, after mixing 30 seconds, carry floating weight and add 1 mass parts Sulfur, 1.5 mass parts accelerant CZs,, cleaning in mixing 60 seconds, more mixing 30 seconds binder removals, pressurization mixing time is 120 seconds, and dump temperature is 98 ℃.
The performance comparison of table 4: embodiment 2 and comparative example 2
Trans isoprene TPI mooney viscosity is high, and processing difficulties is used cis-isoprene IR and TPI use that Mooney is lower in embodiment 2, and the two has identical structural unit, and consistency is good, has solved the shortcoming of TPI processing difficulties simultaneously.The tensile strength of embodiment 2, tear strength are all higher than comparative example 2, and embodiment 2 bottom temperature rises are lower than comparative example 2, and wear hardness improves.
Comparative example 3
Formula: SMR20100; N234 carbon black 30; White carbon black 20; Silane coupling agent X50S5; Anti-aging agent RD 1.5; Antioxidant 4020 2; Zinc oxide 3; Stearic acid 2; Sulfur 1; Accelerant CZ 1.5.
One section of calendering process: add 100 mass parts SMR20 in the Banbury mixer that is 90rpm at rotating speed, mixing 60 seconds, carry floating weight and add 30 mass parts carbon black N234,20 mass parts white carbon blacks, 5 mass parts silane coupling agent X50S, 1.5 mass parts anti-aging agent RDs, 3 mass parts zinc oxide, 2 mass parts stearic acid, 2 mass parts antioxidant 4020s, 1 mass parts protection wax, after mixing 60 seconds, carry floating weight, cleaning, mixing 90 seconds binder removals again, always doing time is 210 seconds, 162 ℃ of dump temperatures;
Two step process: the banburying machine that is 60rpm at rotating speed adds one section of mixing rubber master batch of 164.5 mass parts, carries floating weight and adds 1 mass parts Sulfur and 1.5 mass parts accelerant CZs after plasticating 30 seconds; Cleaning afterwards in mixing 60 seconds; Binder removal after mixing 30 seconds, pressurization mixing time is 120 seconds, 104 ℃ of dump temperatures;
Embodiment 3
Formula: SMR2060; Synthetic polyisoprenes rubber IR40; N234 carbon black 30; White carbon black 20; Silane coupling agent X50S5; Anti-aging agent RD 1.5; Antioxidant 4020 2; Protection wax 1; Zinc oxide 3; Stearic acid 2; Sulfur 1; Accelerant CZ 1.5.
One section of calendering process:
Carbon black rubber master batch technique: add 20# standard rubber 60 mass parts in the Banbury mixer that is 90rpm at rotating speed, after plasticating 50 seconds, add 20 mass parts carbon black N234, within mixing 80 seconds, propose floating weight cleaning, add 10 mass parts carbon black N234, within mixing 30 seconds, propose floating weight cleaning, mixing 40 seconds binder removals, pressurization mixing time is 200 seconds, 157 ℃ of dump temperatures.
White carbon black rubber master batch technique: add synthesis of trans polyisoprene 40 mass parts in the Banbury mixer that is 90rpm at rotating speed, after mixing 50 seconds, carry the mixture that floating weight adds 13 mass parts white carbon black 833MP and 3.5 mass parts silane coupling agent X50S, after mixing 80 seconds, propose floating weight cleaning, add the mixture of 7 mass parts white carbon black 833MP and 1.5 mass parts silane X50S, within mixing 40 seconds, propose floating weight cleaning, mixing 40 seconds binder removals; Pressurization mixing time is 210 seconds, and dump temperature is 153 ℃.
Two-stage mixing process:
In the Banbury mixer that is 90r/min at rotating speed, add 90 mass parts carbon black rubber master batch, and 65 mass parts white carbon black rubber master batch, within mixing 60 seconds, carry floating weight and add 3 mass parts zinc oxide, 2 mass parts stearic acid, 1.5 mass parts anti-aging agent RDs, 2 mass parts antioxidant 4020s, 1 mass parts protection wax, cleaning in mixing 80 seconds, discharged two sections of rubber master batch at mixing 30 seconds, pressurization mixing time is 170 seconds, and dump temperature is 154 ℃.
Finished composition calendering process:
In the Banbury mixer that is 50r/min at rotating speed, add two sections of rubber master batch of 164.5 mass parts, after mixing 30 seconds, carry floating weight and add 1 mass parts Sulfur, 1.5 mass parts accelerant CZs,, cleaning in mixing 60 seconds, got rid of finished composition at mixing 30 seconds, pressurization mixing time is 120 seconds, and dump temperature is 102 ℃.
The performance comparison of table 5: embodiment 3 and comparative example 3
Embodiment 3 is compared with comparative example 3, and elasticity is high, and compression heat generation reduces, and wear hardness improves, and illustrates that heat-dissipating reduces when adopting calendering process of the present invention, and elasticity improves, and wear resistance improves.
Claims (10)
1. containing rubber combination and the preparation technology of natural rubber/carbon black and synthetic polyisoprenes rubber/white carbon black rubber master batch, it is characterized in that:
Masterbatch process:
Carbon black rubber master batch technique: natural gum and carbon black be mixing generation carbon black rubber master batch in Banbury mixer;
White carbon black rubber master batch technique: synthetic polyisoprenes rubber and white carbon black, coupling agent be mixing generation white carbon black rubber master batch in Banbury mixer;
Finished composition technique:
By described carbon black rubber master batch, white carbon black rubber master batch, anti-aging agent, promoting agent, promotor, vulcanizing agent in the mixing rubber combination that is prepared into of composition ratio.
2. preparation method according to claim 1, in total consumption 100 mass parts of rubber, the amount ratio of natural rubber and synthetic polyisoprenes rubber is 1: 3-5: 1; The usage ratio of carbon black/white carbon black usage ratio and natural gum/synthetic polyisoprenes rubber keeps certain proportion, generally makes the ratio of two kinds of fillers and two kinds of rubber ratio be consistent; Total consumption of carbon black and white carbon black is 5-120 mass parts, preferably 10-100 mass parts.
3. preparation method according to claim 1, carbon black rubber master batch is in natural rubber 100 mass parts, and carbon black loading is 5-100 part, preferably 20-80 part; White carbon black rubber master batch is in synthetic polyisoprenes rubber 100 mass parts, and white carbon black consumption is 5-100 part, preferably 20-80 part, the preferred 1wt%--15wt% of 0.5wt%-20wt% that coupling agent consumption is white carbon black.
4. preparation method according to claim 1, natural rubber comprises standard rubber, gutta-percha, smoke sheet rubber, guayule; Wherein synthetic polyisoprenes rubber is cis-polyisoprene rubber, trans polyisoprene rubber or their mixture.
5. preparation method according to claim 1, wherein said carbon black is any carbon black, preferably STSA specific surface area is 70-180m
2/ g, compression DBP absorption value is 60-150 (10
-5m
3/ kg) carbon black; Described white carbon black is any white carbon black, preferably precipitated silica, and specific surface area is 50-200m
2/ g.
6. preparation method according to claim 1, wherein said coupling agent comprises the most frequently used two (triethoxy propyl silane) tetrasulfides and disulphide, 3-thiocyanogen propyl group-triethoxyl silane, Y-sulfydryl-Trimethoxy silane, zirconium ester coupling agent, phthalate ester coupling agent, nitro coupling agent, alcohol compound, and described alcohol compound includes but not limited to propyl alcohol, butanols, ethylene glycol, polyoxyethylene glycol and derivative thereof.
7. according to claim 1, wherein activator be the combination of metal oxide and lipid acid and fatty acid metal soap salt one or more, described metal oxide be zinc oxide, magnesium oxide etc. one or more, described fatty acid metal soap salt be Zinic stearas, zinc borate etc. one or more.
8. preparation method according to claim 1, wherein anti-aging agent comprise amines antioxidants, quinoline type antioxidant, benzimidazoles anti-aging agent, protection wax one or more.
9. rubber combination according to claim 1, wherein promotor includes but not limited to that sulfenamide type accelerators, thiazole accelerator, thiuram type accelerator, guanidine class promote profit or their combination, and vulcanizing agent includes but not limited to Sulfur, insoluble thin Huang, oil-filled Sulfur, sulphur-donor or their combination.
10. rubber unvulcanizate or a cross-linked rubber of preparing according to preparation method described in claim 1-9.
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| CN201710187675.5A CN106947122A (en) | 2014-01-23 | 2014-01-23 | A kind of preparation method of rubber composition |
| PCT/CN2014/082701 WO2015109791A1 (en) | 2014-01-23 | 2014-07-22 | Rubber composition with natural rubber/carbon black and synthetic polyisoprene rubber/white carbon black as master batch and manufacturing process therefor |
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| WO2015109791A1 (en) | 2015-07-30 |
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