CN106947122A - A kind of preparation method of rubber composition - Google Patents
A kind of preparation method of rubber composition Download PDFInfo
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- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
- B29B7/283—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring data of the driving system, e.g. torque, speed, power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
- B29B7/286—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring properties of the mixture, e.g. temperature, density
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/34—Silicon-containing compounds
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- C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The present invention relates to a kind of preparation method of rubber composition, it is characterised in that：Natural gum and carbon black mixing generation carbon black rubber master batch, polyisoprene rubber and the white carbon mixing generation white carbon rubber master batch of solution synthesis, then two kinds of rubber master batch are kneaded to be formed with other rubber chemicals.Rubber composition prepared by the inventive method has the advantages that good wearability, elastic height, heat are low, available in tire formulation, it can also be used in other rubbers.
Description
The application is entitled " a kind of using natural rubber/carbon black, synthetic polyisoprenes rubber/white carbon as rubber master batch
Rubber composition and its processing technology ", Application No. " 201410031929.0 ", the applying date is in " on January 23rd, 2014 "
The divisional application of state's patent application.
Technical field
The present invention relates to rubber materials, more particularly to rubber and rubber processing.
Background technology
Rubber energy loss during dynamic use is one of its essential characteristic, and it is caused by sizing material hysteresis loss
's.Sizing material energy ezpenditure and heat increase during dynamic deformation, rises the temperature of sizing material during hysteresis loss increase, and then
Decline the intensity and wearability of elastomeric compound, cause the Random early Detection of the products such as tire；More importantly increase the rolling of tire
Resistance, increase fuel consumption (fuel consumption) increases the discharge capacity of carbon dioxide.
Numerous results of study show that the rolling of tire can be reduced using reinforcing precipitated silica filler in formula
Resistance.Patent CN1539872A proposes the rubber compounding that a kind of anti-slippery and tire drag balance each other, composition into
It is divided into polyolefin and carbon black, white carbon, organosilan.Patent CN1141311A and patent CN1141313A disclose alkadienes
Rubber adds the tyre surface formula of white carbon and carbon black, and technique is traditional calendering process, and filler and auxiliary agent are added into diene polymerization
Thing is kneaded.Patent CN1134434A discloses elastomer, silica, carbon black sizing material, and the patent is limited carbon black loading
Less than 30 mass parts, and silica and carbon black and be 3/1---30/1 scopes with ratio.Patent CN1140129A regulations are white
Carbon black/carbon black is simultaneously at least 10 with ratio:1, carbon black loading is few, is unfavorable for wear-resisting.These patents are all using tradition mixing work
Skill, carbon black/white carbon is together added in rubber with auxiliary agent, and carbon black/white carbon unavoidably wants the non-rubber components such as adsorption aid,
The combination of filler and rubber is reduced, while can also reduce anti-wear performance.
The invention is intended to design a kind of rubber composition by new calendering process, carbon black/white carbon is set first to be combined with rubber
Other rubber chemicals are blended into, the thermogenesis performance of sizing material can be reduced on the premise of holding is wear-resisting, the elasticity of sizing material is improved.
The content of the invention
For prior art problem, it is an object of the invention to provide one kind with natural rubber/carbon black, synthetic polyisoprenes
Rubber/white carbon is the rubber composition and its processing technology of rubber master batch, and the innovation of this art inventions is poly- using solution synthesis
Isoprene copolymer composition is single, the few advantage of non-rubber component, when preparing synthetic polyisoprenes white carbon rubber master batch, in vain
Carbon blacksurface will not adsorb non-rubber component, then by action of coupling agents, white carbon is more preferably combined with rubber, reach and carry
High abrasion reduces the purpose of heat.The rubber composition prepared according to the technology of the present invention, can keep resistance to for tire tread
On the premise of mill property, the heat of tire and the rolling resistance of tire are reduced.
The invention further relates to scheme is implemented as follows：
A kind of rubber composition and preparation containing natural rubber/carbon black and synthetic polyisoprenes rubber/white carbon rubber master batch
Technique, it is characterised in that：
Masterbatch process：
Carbon black rubber master batch technique：Natural gum kneads generation carbon black rubber master batch with carbon black in banbury；
White carbon rubber master batch technique：It is white that synthetic polyisoprenes rubber kneads generation with white carbon, coupling agent in banbury
Carbon black rubber master batch；
Finished composition technique：
The carbon black rubber master batch, white carbon rubber master batch, age resistor, activating agent, accelerator, vulcanizing agent are kneaded by composition ratio
It is prepared into rubber composition.
According to above-mentioned preparation method, in terms of the total mass parts of consumption 100 of rubber, natural rubber and synthetic polyisoprenes rubber
The amount ratio of glue is 1:3—5:1；Carbon black/white carbon usage ratio and the usage ratio of natural gum/synthetic polyisoprenes rubber
Certain proportion is kept, the ratio and two kinds of rubber ratios for typically making two kinds of fillers are consistent；Total consumption of carbon black and white carbon
For 5-120 mass parts, preferably 10-100 mass parts；
According to above-mentioned preparation method, carbon black rubber master batch is in terms of the mass parts of natural rubber 100, and carbon black loading is 5-100 parts, excellent
Select 20-80 parts；White carbon rubber master batch is in terms of the mass parts of synthetic polyisoprenes rubber 100, and white carbon consumption is 5-100 parts, preferably
20-80 parts, coupling agent consumption is the preferred 1wt% -15wt% of 0.5wt%-20wt% of white carbon；
According to above-mentioned preparation method, natural rubber includes standard rubber, gutta-percha, smoke sheet rubber, guayule；Wherein synthesize poly-
Isoprene rubber is cis-polyisoprene rubber, trans polyisoprene rubber or their mixture.
According to above-mentioned preparation method, wherein the carbon black is any carbon black, preferably STSA specific surface areas are 70-180m2/
G, compression DBP absorption value are 60-150 (10-5m3/ kg) carbon black；The white carbon is any white carbon, preferably precipitation method hard charcoal
Black, specific surface area is 50-200m2/g。
According to above-mentioned preparation method, wherein the coupling agent includes the most frequently used double (triethoxy propyl silane) four sulphur
Compound and disulphide, 3- thiocyanogens propyl-triethoxysilane, γ-sulfydryl-trimethoxy silane, zirconium ester coupling agent, phthalein
Acid esters coupling agent, nitro coupling agent, alcohol compound, the alcohol compound include but is not limited to propyl alcohol, butanol, ethylene glycol,
Polyethylene glycol and its derivative.
According to above-mentioned, wherein activator is that metal oxide and fatty acid composition and fatty acid metal soap salt are a kind of or many
Kind, the metal oxide is the one or more such as zinc oxide, magnesia, and the fatty acid metal soap salt is zinc stearate, boron
The one or more such as sour zinc.
According to above-mentioned preparation method, wherein age resistor is prevented including amines antioxidants, quinoline type antioxidant, benzimidazole
Old agent, protection wax are one or more.
According to above-mentioned rubber composition, wherein accelerator includes but is not limited to sulfenamide type accelerators, thiazoles rush
Enter agent, thuriam acceserator, guanidines or combinations thereof, vulcanizing agent include but is not limited to Sulfur, insoluble sulfuy,
Oil-filled Sulfur, sulphur-donor or combinations thereof.
The invention further relates to a kind of elastomeric compound or vulcanizate prepared according to above-mentioned preparation method.
The invention further relates to calendering process include following three processing step：
Processing step one：
Carbon black rubber master batch：Natural rubber is kneaded with carbon black in any banbury, and rotating speed is 20-90rpm, and mixing time is 1-
10min, dump temperature is less than 165 DEG C；
White carbon rubber master batch：Synthetic polyisoprenes rubber is with white carbon and a certain amount of organic coupling agent in any banbury
Middle mixing, rotating speed is 20-90rpm, and mixing time is 1-10min, and dump temperature control is less than 170 DEG C, and melting temperature is in 130-
0.5-4min is kept at 165 DEG C；
Processing step two：
Carbon black rubber master batch is mixed into 0.5min-3min according to composition ratio with white carbon rubber master batch in banbury, it is rear to add
Activator, age resistor etc., mixing rotating speed are 20-90rpm, and mixing time is 1-10min；
Processing step three：
The rubber master batch that step 2 is produced is kneaded with vulcanizing agent, accelerator in any banbury, and rotating speed is 10-40rpm, is mixed
The refining time is 1-8min.
Heretofore described rubber composition is in terms of the total mass parts of consumption 100 of rubber, and total consumption of carbon black and white carbon is
5-120 mass parts, preferably 10-100 mass parts, wherein the carbon black is any carbon black, preferably STSA specific surface areas are 70-
180m2/ g carbon black, the preferred specific surface area of white carbon is 50-200m2/ g precipitated silicas.Natural rubber is with synthesizing poly- isoamyl
The amount ratio of diene rubber is 1:3—5:1.The usage ratio of carbon black/white carbon and natural gum/synthetic polyisoprenes rubber
Usage ratio is typically consistent, can also be different.
The activator can select zinc oxide, stearic acid, zinc stearate, magnesia, Firebrake ZB etc., and consumption is generally 1-10
Mass parts, preferably 2-5 mass parts；The age resistor is p phenylenediamine type antioxidant, quinoline type antioxidant, benzimidazole are anti-old
Agent or its composition, total amount are no more than 8 mass parts, preferably 1-6 mass parts；The vulcanizing agent can select common sofril, oil-filled
Sulfur, insoluble sulfuy, oil-filled insoluble sulfuy etc., usage amount is based on effective content, and general consumption is 0.2-10 mass parts, excellent
From amount 0.5-5 mass parts；The accelerator is thuriam acceserator, sulfenamide type accelerators, carbaminate class rush
Enter agent, guanidines or combinations thereof, consumption is generally 0.2-8 mass parts, preferably 0.2-5 mass parts.
Embodiment
The present invention is further described with embodiment below, but the scope of the present invention is not restricted by the embodiments.
Instrument and equipment prepared by the rubber sample of table 1
| Sequence number | Device name | Specifications and models | Manufacturer |
| 1 | Banbury | XSM-1/10-120 | Shanghai Kechuang rubber and plastics machine equipment Co., Ltd |
| 2 | Mill | 152.5*320 | Zhanjiang Machine Factory, Guangdong Prov. |
| 3 | Vulcanizing press | XLB-D600*600 | Zhejiang Huzhou east Machinery Co., Ltd. |
The method of testing and instrument of the vulcanizating glue physical performance of table 2
Following chemicals is applied to embodiment and comparative example：
20# standard rubbers：Malaysian long hair rubber plant；
Synthesizing cis polyisoprene IR：Her Cohan new material Co., Ltd of Qingdao；
Synthesis of trans polyisoprene TPI：Qingdao Cefpirome Culfate Materials Co., Ltd；
Organo silane coupling agent X50S：Containing 50% pair of (3- ethoxy-cs base silane) tetrasulfide, contain 50%N330
Carbon black, wins wound haze star (sunshine) chemical industry Co., Ltd；
N115, N234：Cabot (China) Co., Ltd；
White carbon 833MP：Wuxi Heng Cheng Silicon Industry Co., Ltd.；
Zinc oxide：Dalian zinc oxide factory；
Stearic acid：Co., Ltd is found into by PF1808, Malaysia；
Antioxidant 4020：N- (1.3- dimethylbutyls)-N '-diphenyl-para-phenylene diamine, the holy scientific and technological limited public affairs of chemistry difficult to understand in Jiangsu
Department；
Anti-aging agent RD：2,2,4- trimethyl -1,2- dihyaroquinoline polymer, Tianjin Ke Mai auxiliary agents Co., Ltd；
Protection wax：Hundred U.S. auspicious speciality chemical (Suzhou) Co., Ltds；
Accelerant CZ：N cyclohexyl 2 benzothiazole sulfenamide, Shandong Sunsine 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：SMR20 50；Synthetic polyisoprenes rubber IR 50；N234 carbon blacks 25；White carbon 833MP 25；Silane
Coupling agent X50S 6；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：50 mass parts SMR20 and 50 mass parts IR are added in rotating speed is 90rpm banbury, are mixed
Refining 60 seconds, carries floating weight and adds 25 mass parts of carbon black N234,25 mass parts white carbon 833MP, 6 mass parts silane couplers
X50S, 1.5 mass parts anti-aging agent RDs, 3 mass parts zinc oxide, 2 mass parts stearic acid, mass parts antioxidant 4020, protection wax 1,
Mixing carries floating weight after 60 seconds, cleans, then kneads 90 seconds dumpings, and pressurization is done time as 210 seconds, 158 DEG C of dump temperature；
Finished composition calendering process：In rotating speed 165.5 mass parts, one section of mixing rubber master batch, modeling are added for 60rpm banburying machine
Refining carries floating weight and adds 1 mass parts Sulfur and 1.5 mass parts accelerant CZs after 30 seconds；Mixing is cleaned after 60 seconds；After mixing 30 seconds
Dumping, pressurization mixing time is 120 seconds, 103 DEG C of dump temperature；
Embodiment 1
Formula：SMR20 50；Synthetic polyisoprenes rubber IR 50；N234 carbon blacks 25；White carbon 25；Silane coupler
X50S 6；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：Added in rotating speed is 90rpm banbury after 50 mass parts SMR20 plasticate 50 seconds and put on top
Bolt, adds 17 mass parts of carbon black N234, and mixing proposes floating weight cleaning after 90 seconds, add remaining 8 mass parts of carbon black N234, mixing 30
Second proposes floating weight cleaning, kneads 30 seconds dumpings；The mixing time that pressurizes is 200 seconds, 157 DEG C of dump temperature.
White carbon rubber master batch technique：50 mass parts synthesis isoprene IR, mixing are added in rotating speed is 90rpm banbury
Floating weight is carried after 50 seconds and adds 17 mass parts white carbons and 4 mass parts silane coupler X50S；Mixing carries floating weight after 60 seconds and added
Enter remaining 8 mass parts white carbon and 2 mass parts silane coupler X50S；Mixing proposes floating weight cleaning for 30 seconds, kneads 60 seconds dumpings；
The mixing time that pressurizes is 200 seconds, 154 DEG C of dump temperature；
Two-stage mixing process：
75 mass parts of carbon black rubber master batch and 81 mass parts white carbon rubber master batch are added in rotating speed is 90rpm banbury, are kneaded
Floating weight is carried within 80 seconds, 1.5 mass parts anti-aging agent RDs, 2 mass parts antioxidant 4020s, 1 mass parts protection wax, 3 mass parts oxygen are added
Change zinc, 2 mass parts stearic acid；Mixing is cleaned for 70 seconds；30 seconds dumpings are kneaded again；The mixing time that pressurizes is 180 seconds, dump temperature
153℃；
Finished composition calendering process：
165.5 mass parts two-stage mixing rubber master batch are added in rotating speed is 60rpm banbury, mixing carries floating weight in 30 seconds and added
1 mass parts Sulfur and 1.5 mass parts accelerant CZs；Mixing is cleaned for 60 seconds；30 seconds dumpings are kneaded again, and pressurization mixing time is 120
Second, 105 DEG C of dump temperature.
Table 3：The performance comparison of embodiment 1 and comparative example 1
Embodiment 1 is compared with comparative example 1, and elasticity is improved, and compression heat generation reduction, wear hardness is improved, and is illustrated when using this
Invention calendering process, heat reduction, elasticity is improved, and wearability is improved.
Comparative example 2
Formula：SMR20 100；N115 carbon blacks 20；White carbon 30；Silane coupler X50S 7.2；Anti-aging agent RD 1.5；It is anti-
Old agent 4,020 2；Protection wax 1；Zinc oxide 3；Stearic acid 2；Sulfur 1；Accelerant CZ 1.5.
One section of calendering process：
The mass parts of 20# standard rubbers 100 are added in rotating speed is 90rpm banbury, 20 mass parts are added after plasticating 60 seconds
Carbon black N115,30 mass parts white carbons, 7.2 mass parts X50S, 3 mass parts zinc oxide, 2 mass parts stearic acid, 1.5 mass parts are prevented
Old agent RD, 2 mass parts antioxidant 4020s, 1 mass parts protection wax, mixing propose floating weight cleaning for 60 seconds, knead 90 seconds dumpings, pressurization
Mixing time is 210 seconds, 163 DEG C of dump temperature.
Finished composition calendering process：
166.7 mass parts, one section of rubber master batch is added in rotating speed is 60rpm banbury, mixing proposes floating weight addition after 30 seconds
1 mass parts Sulfur, 1.5 mass parts accelerant CZs, knead 60 seconds and clean, then 30 seconds dumpings are kneaded, pressurization mixing time is 120
Second, dump temperature is 98 DEG C.
Embodiment 2
Formula：20# standard rubbers 40；Trans-polyisoprene TPI 20；Cis-polyisoprene IR 40；N115 carbon blacks
20；White carbon 30；Silane coupler 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：The mass parts of 20# standard rubbers 40 are added in rotating speed is 90rpm banbury, after plasticating 50 seconds
13 mass parts of carbon black N115 are added, mixing proposes floating weight cleaning for 80 seconds, adds 7 mass parts of carbon black N115, and mixing puts on top in 30 seconds
Bolt is cleaned, and kneads 40 seconds dumpings, and pressurization mixing time is 200 seconds, 165 DEG C of dump temperature.
White carbon rubber master batch technique：Added in rotating speed is 90rpm banbury the mass parts of synthesis of trans polyisoprene 20,
The mass parts of cis-polyisoprene 40.Mixing carries floating weight and adds 20 mass parts white carbons and 4.8 mass parts silane idol after 50 seconds
Join agent X50S, mixing proposes floating weight cleaning after 80 seconds, add 10 mass parts white carbons and 2.4 mass parts silane X50S, mixing 40
Second proposes floating weight cleaning, kneads 40 seconds dumpings；The mixing time that pressurizes is 210 seconds, and dump temperature is 158 DEG C.
Two-stage mixing process：
60 mass parts of carbon black rubber master batch, and 97.2 mass parts white carbon rubber master batch are added in rotating speed is 90rpm banbury,
It is anti-old that mixing puies forward 3 mass parts zinc oxide of floating weight addition, 2 mass parts stearic acid, 1.5 mass parts anti-aging agent RDs, 2 mass parts for 60 seconds
Agent 4020,1 mass parts protection wax, knead 80 seconds and clean, and in the mixing two sections of rubber master batch of discharge in 30 seconds, pressurization mixing time is 170 seconds,
Dump temperature is 154 DEG C.
Finished composition calendering process：
166.7 mass parts, two sections of rubber master batch are added in rotating speed is 60r/min banbury, mixing carries floating weight after 30 seconds and added
Enter 1 mass parts Sulfur, 1.5 mass parts accelerant CZs, knead 60 seconds and clean, then 30 seconds dumpings are kneaded, pressurization mixing time is
120 seconds, dump temperature was 98 DEG C.
Table 4：The performance comparison of embodiment 2 and comparative example 2
Trans-isoprene TPI Mooney viscosities are high, processing difficulties, and the cis isoamyl two that Mooney is relatively low is used in embodiment 2
Alkene IR and TPI is used in combination, and the two has identical construction unit, and compatibility is good, while solving the shortcoming of TPI processing difficulties.It is real
Apply the tensile strength of example 2, tearing strength and be above comparative example 2, the bottom temperature rise of embodiment 2 is less than comparative example 2, and wear hardness is carried
It is high.
Comparative example 3
Formula：SMR20 100；N234 carbon blacks 30；White carbon 20；Silane coupler X50S 5；Anti-aging agent RD 1.5；It is anti-old
Agent 4,020 2；Zinc oxide 3；Stearic acid 2；Sulfur 1；Accelerant CZ 1.5.
One section of calendering process：100 mass parts SMR20 are added in rotating speed is 90rpm banbury, kneads 60 seconds, puts on
Push up bolt and add 30 mass parts of carbon black N234,20 mass parts white carbons, 5 mass parts silane coupler X50S, 1.5 mass parts age resistor
RD, 3 mass parts zinc oxide, 2 mass parts stearic acid, 2 mass parts antioxidant 4020s, 1 mass parts protection wax, mixing are put on after 60 seconds
Bolt is pushed up, is cleaned, then kneads 90 seconds dumpings, is always done time as 210 seconds, 162 DEG C of dump temperature；
Two step process：164.5 mass parts, one section of mixing rubber master batch is added for 60rpm banburying machine in rotating speed, is plasticated 30 seconds
After carry floating weight and add 1 mass parts Sulfur and 1.5 mass parts accelerant CZs；Mixing is cleaned after 60 seconds；30 seconds back glues are kneaded, plus
It is 120 seconds, 104 DEG C of dump temperature to press mixing time；
Embodiment 3
Formula：SMR20 60；Synthetic polyisoprenes rubber IR 40；N234 carbon blacks 30；White carbon 20；Silane coupler
X50S 5；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：The mass parts of 20# standard rubbers 60 are added in rotating speed is 90rpm banbury, after plasticating 50 seconds
20 mass parts of carbon black N234 are added, mixing proposes floating weight cleaning for 80 seconds, adds 10 mass parts of carbon black N234, and mixing puts on top in 30 seconds
Bolt is cleaned, and kneads 40 seconds dumpings, and pressurization mixing time is 200 seconds, 157 DEG C of dump temperature.
White carbon rubber master batch technique：The mass parts of synthesis of trans polyisoprene 40 are added in rotating speed is 90rpm banbury,
Mixing carries the mixture that floating weight adds 13 mass parts white carbon 833MP and 3.5 mass parts silane coupler X50S after 50 seconds, mix
Refining proposes floating weight cleaning after 80 seconds, add 7 mass parts white carbon 833MP and 1.5 mass parts silane X50S mixture, mixing 40
Second proposes floating weight cleaning, kneads 40 seconds dumpings；The mixing time that pressurizes is 210 seconds, and dump temperature is 153 DEG C.
Two-stage mixing process：
90 mass parts of carbon black rubber master batch, and 65 mass parts white carbon rubber master batch are added in rotating speed is 90r/min banbury,
It is anti-old that mixing puies forward 3 mass parts zinc oxide of floating weight addition, 2 mass parts stearic acid, 1.5 mass parts anti-aging agent RDs, 2 mass parts for 60 seconds
Agent 4020,1 mass parts protection wax, knead 80 seconds and clean, and in the mixing two sections of rubber master batch of discharge in 30 seconds, pressurization mixing time is 170 seconds,
Dump temperature is 154 DEG C.
Finished composition calendering process：
164.5 mass parts, two sections of rubber master batch are added in rotating speed is 50r/min banbury, mixing carries floating weight after 30 seconds and added
Enter 1 mass parts Sulfur, 1.5 mass parts accelerant CZs, knead 60 seconds and clean, finished composition is excluded within 30 seconds in mixing, during pressurization mixing
Between be 120 seconds, dump temperature be 102 DEG C.
Table 5：The performance comparison of embodiment 3 and comparative example 3
Embodiment 3 is compared with comparative example 3, and elasticity is improved, and compression heat generation reduction, wear hardness is improved, and is illustrated when using this
Invention calendering process, heat reduction, elasticity is improved, and wearability is improved.
Claims (10)
1. a kind of preparation method of rubber composition, it is characterised in that：Natural gum is closed with carbon black mixing generation carbon black rubber master batch, solution
Into polyisoprene rubber and white carbon mixing generation white carbon rubber master batch, then two kinds of rubber master batch and other rubber chemicals are kneaded into shape
Into.
2. preparation method according to claim 1, it is characterised in that：Described calendering process comprises the following steps：
1) rubber master batch：Natural rubber is kneaded with carbon black in banbury, and rotating speed is 20-90rpm, and mixing time is 1-10min, dumping
Temperature is less than 165 DEG C；Synthetic polyisoprenes rubber is kneaded with white carbon and a certain amount of organic coupling agent in banbury, is turned
Speed is 20-90rpm, and mixing time is 1-10min, and dump temperature control is less than 170 DEG C, and melting temperature is protected at 130-165 DEG C
Hold 0.5-4min；
2) knead：Carbon black rubber master batch is mixed into 0.5min-3min according to composition ratio with white carbon rubber master batch in banbury, it is rear to add
Enter the additive beyond sulphur removal agent and accelerator, mixing rotating speed is 20-90rpm, and mixing time is 1-10min；
3) refining eventually：By step 2) rubber master batch and vulcanizing agent, the accelerator of production knead in banbury, and rotating speed is 10-40rpm, mixed
The refining time is 1-8min.
3. preparation method according to claim 1, it is characterised in that：In terms of the total mass parts of consumption 100 of rubber, natural rubber
Amount ratio with synthetic polyisoprenes rubber is 1:3—5:1；Carbon black/white carbon usage ratio and the poly- isoamyl of natural gum/synthesis
The usage ratio of diene rubber is consistent；Total consumption of carbon black and white carbon is 5-120 mass parts, preferably 10-100 mass
Part.
4. preparation method according to claim 1, it is characterised in that：Carbon black rubber master batch is in terms of the mass parts of natural rubber 100, charcoal
Black consumption is 5-100 parts, preferably 20-80 parts；White carbon rubber master batch is in terms of the mass parts of synthetic polyisoprenes rubber 100, white carbon
Consumption be 5-100 part, preferably 20-80 parts, coupling agent consumption for white carbon 0.5wt%-20wt%, preferably 1wt%-
15wt%.
5. preparation method according to claim 1, it is characterised in that：Natural rubber includes standard rubber, gutta-percha, smoked sheet
Glue, guayule；Wherein synthetic polyisoprenes rubber be cis-polyisoprene rubber, trans polyisoprene rubber or they
Mixture.
6. preparation method according to claim 1, it is characterised in that：Wherein described carbon black is any carbon black, preferably STSA
Specific surface area is 70-180m2/ g, compression DBP absorption value are 60-150 (10-5m3/ kg) carbon black；The white carbon is any white
Carbon black, preferably precipitated silica, specific surface area are 50-200m2/g。
7. preparation method according to claim 1, it is characterised in that：Wherein described coupling agent includes the most frequently used double (three
Ethoxy-c base silane) tetrasulfide and disulphide, 3- thiocyanogens propyl-triethoxysilane, γ-sulfydryl-trimethoxy
Silane, zirconium ester coupling agent, phthalate ester coupling agent, nitro coupling agent, alcohol compound, the alcohol compound include but not limited
In propyl alcohol, butanol, ethylene glycol, polyethylene glycol and its derivative.
8. according to claim 1, it is characterised in that：Wherein activator is metal oxide and fatty acid composition and fat
Sour metallic soap salt is one or more, and the metal oxide is the one or more, the fatty acid metal such as zinc oxide, magnesia
Soap salt is the one or more such as zinc stearate, Firebrake ZB；Age resistor includes amines antioxidants, quinoline type antioxidant, benzimidazole
Class age resistor, protection wax are one or more.
9. preparation method according to claim 1, it is characterised in that：Wherein accelerator includes but is not limited to sulfenamide
Accelerator, thiazole accelerator, thuriam acceserator, guanidines or combinations thereof, vulcanizing agent include but is not limited to
Sulfur, insoluble sulfuy, oil-filled Sulfur, sulphur-donor or combinations thereof.
10. elastomeric compound or vulcanizate prepared by a kind of preparation method according to claim 1-9.
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| CN110105635A (en) * | 2019-05-31 | 2019-08-09 | 昆明云仁轮胎制造有限公司 | A kind of white carbon black rubber master batch and the preparation method and application thereof |
| CN114292450A (en) * | 2022-01-04 | 2022-04-08 | 中策橡胶集团股份有限公司 | Dry mixing method of tire rubber composition, tread composition and low rolling resistance high-performance tire |
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