CN106832448B - A kind of tread rubber being used to prepare high-performance tire - Google Patents
A kind of tread rubber being used to prepare high-performance tire Download PDFInfo
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- CN106832448B CN106832448B CN201710095677.1A CN201710095677A CN106832448B CN 106832448 B CN106832448 B CN 106832448B CN 201710095677 A CN201710095677 A CN 201710095677A CN 106832448 B CN106832448 B CN 106832448B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
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Abstract
A kind of tread rubber being used to prepare high-performance tire, is prepared by the raw material of following parts by weight: 60~100 parts of natural rubber, 0~30 part of butadiene rubber, 0~30 part of solution polymerized butadiene styrene rubber, 1~3 part of stearic acid, 3~5 parts of zinc oxide, 1~1.6 part of promotor, 0.3~0.8 part of sulphur, 3 parts of anti-aging agent, 40~55 parts of carbon black, 0~15 part of white carbon black, 0~1.5 part of coupling agent, 0.5~2.5 part of anti-recovery agent, 0.1~0.25 part of anti-scorching agent CTP.The present invention also provides the methods for preparing above-mentioned tread rubber.The present invention substitutes part sulfur consumption using sulfuration resistant reducing agent, forming thermodynamically stable monosulfidic bond, cystine linkage polysulfide bond similar with tool mixing cross-bond flexible tyre surface formula of the invention has that heat is low, wearability is good, ageing-resistant performance is good, tearing strength is high and the performances such as anti-recovery, improves the service life of tire.
Description
Technical field
The present invention relates to chemical field more particularly to rubber tyre, especially a kind of tire for being used to prepare high-performance tire
Face glue.
Background technique
With the implementation of tire tag method, harsh is become to the requirement that low rolling resistance, high abrasion and the moisture-resistant of tire grab performance,
The requirement for improving green tire wearability and reducing formula heat becomes the important topic of tire research staff.
It can just make wearability performance and dynamic property can be with by optimization filler systems and vulcanizing system under normal conditions
Improve the wearability, ageing-resistant performance and reduction heat of tire, but consider comprehensive performance, such as uses high wear-resistant carbon black or hard charcoal
It is black, but it is high to be kneaded difficulty, it is possible to do not have good wearability and thermal effect of being born；It simple reduction sulfur consumption and mentions
High accelerator dosage causes the comprehensive performance of tyre surface formula to decline, for example, mechanical strength and tear resistance it is poor, dynamic fatigue property
It is bad；Simple raising sulfur consumption reduces accelerator dosage, and the aging conservation rate of formula is poor.For the use for improving tire tread
Service life, it is necessary to reduce sulfur consumption and form the polysulfide bond mixing flexible similar with cystine linkage and tool of thermodynamically stable monosulfidic bond
Cross-bond, to guarantee good tearing strength, heat oxygen aging resistance, high-wearing feature and low hysteresis.
Summary of the invention
It is described this to be used to prepare the purpose of the present invention is to provide a kind of tread rubber for being used to prepare high-performance tire
The tread rubber of high-performance tire to solve existing tire tread mechanical strength in the prior art and tear resistance is poor, dynamic fatigue
Performance is bad, aging conservation rate difference technical problem.
The present invention provides a kind of tread rubbers for being used to prepare high-performance tire, by the raw material preparation of following parts by weight
At:
The natural rubber is natural rubber SMR20 or natural rubber SIR20；The butadiene rubber is neodymium series along fourth
Rubber, ash content≤0.5%, cis--Isosorbide-5-Nitrae content >=96%, organic acid content < 1%；The solution polymerized butadiene styrene rubber is molecular weight
> 200,000 is answered, molecular weight distribution > 1.5, combinated styrene content content is between 18~25%, cis--l, 4 butadiene content > 20%；
The promotor uses accelerator NS；The anti-aging agent is using antioxidant 4020, anti-aging agent CPL, anti-aging agent RD or prevents
Protect any one or more in wax；The carbon black uses N134 carbon black, N234 carbon black or N375 carbon black；The idol
Join agent and uses silane coupling agent Si-69；The anti-recovery agent is bis- (N, N '-the bisbenzothiazole carbamyls two of 1,6-
Sulphur)-hexane, molecular formula are as follows:
Further, the white carbon black uses the high structure white carbon black of high dispersive.
Further, in terms of 100 parts by weight of rubber major ingredients, the carbon black can be applied alone carbon black or be used in combination or carbon black
Combined with a small amount of white carbon black, when white carbon black dosage be lower than 10 parts by weight when silane coupling agent Si-69 is not added, when white carbon black dosage >=
Add silane coupling agent Si-69 when 10 parts by weight, carbon black and white carbon black add up to dosage to be 45~55 parts by weight.
Further, sulphur and anti-recovery agent dosage in terms of 100 parts by weight of rubber major ingredients, in the tread rubber
Summation is 0.8~3.3 parts by weight.
The present invention also provides a kind of preparation method of above-mentioned tread rubber for being used to prepare high-performance tire, including it is as follows
Step:
1) a step of use rubber internal mixer refines one section of plain glue, starts mixer, the rotor speed of mixer is arranged
For 45~55rpm, mixing pressure is 10~15MPa, and 30~40 DEG C of cooling water temperature, temperature of rotor is 30~40 DEG C, then plus
Enter butadiene rubber, solution polymerized butadiene styrene rubber and natural rubber, plasticate 30~50 seconds and mention floating weight, stops 10~15 seconds pressure floating weights,
Melting temperature mentions floating weight to 145 DEG C, and drop revolving speed to 30~40rpm stops 10~15 seconds pressure floating weights, when the temperature to 155~
170 DEG C of dumpings；
2) the step of two sections of masterbatch of a refining start mixer, and the rotor speed that mixer is arranged is 45~55rpm,
Mixing pressure is 10~15MPa, and 30 DEG C~40 DEG C of cooling water temperature, temperature of rotor is 30~40 DEG C, is added described in step 1)
One section of mastication, carbon black, white carbon black and coupling agent are kneaded and mention floating weight in 30~50 seconds, then toward adding zinc oxide, hard in kneading chamber
Resin acid, anti-aging agent are kneaded to temperature and mention floating weight for 130~145 DEG C, reduce revolving speed to 20~30rpm, stop 10~15 seconds and press
Floating weight, being kneaded to temperature is 150~160 DEG C of dumpings, this glue is two sections of rubber master batch；
3) two sections of rubber master batch are placed in air and park 6~8h；Refining eventually: the rotor speed of mixer is arranged in starting mixer
For 20~25rpm, mixing pressure is 10~15MPa, and 30 DEG C~40 DEG C of cooling water temperature, temperature of rotor is 30~45 DEG C, by two
Section rubber master batch and sulphur, promotor, anti-recovery agent put into kneading chamber together with anti-scorching agent CTP, mention floating weight within 45~60 seconds, stop
10~15 seconds pressure bolts are stayed, mixing to temperature mentions floating weight when being 80~85 DEG C, 10~15 seconds pressure floating weights are stopped, to sizing material temperature
Bolt dumping is mentioned for 90 DEG C~115 DEG C, bottom sheet is cooled to room temperature, and obtains the tread rubber for being used to prepare high-performance tire.
By the present invention in that with cross-linking type anti-recovery agent 1,6- bis- (two sulphur of N, N '-bisbenzothiazole carbamyl)-
Hexane replaces part sulphur, sulphur usage amount in formula is reduced, so that tread rubber be made to form thermodynamically stable monosulfidic bond, double sulphur
Key polysulfide bond mixing cross-bond flexible similar with tool, to guarantee that tyre surface has good tearing strength, heat oxygen aging resistance, height resistance to
Mill property and low hysteresis.
The above-mentioned rubber component of the present invention is that natural rubber or natural rubber are used in combination with butadiene rubber, solution polymerized butadiene styrene rubber
Formula, by natural rubber and butadiene rubber and with main lift is wear-resisting and flexible resistance, natural rubber and solution polymerized butylbenzene rubber
Glue mainly improve moisture-resistant grab performance and it is resistance to gnaw belt cutting-resisting property, natural rubber is used in combination simultaneously with butadiene rubber and solution polymerized butadiene styrene rubber
It mainly balances wear-resisting and promotion moisture-resistant and grabs performance, thus the overall performance of tyre surface formula can be improved.The butadiene rubber used
For neodymium series butadiene rubber, ash content≤0.5%, cis--Isosorbide-5-Nitrae content >=96%, organic acid content < 1%；The solution polymerized butylbenzene used
Rubber is molecular weight > 200,000, and molecular weight distribution > 1.5, combinated styrene content content is between 18~25%, cis--l, 4 butadiene
Content > 20%.
The above-mentioned carbon black of the present invention is that N134 carbon black, N234 carbon black or the N375 carbon black used belongs to the high structure charcoal of high abrasion
It is black；White carbon black uses the high structure white carbon black of high dispersive, the main tear-proof for improving tire tread of the addition of white carbon black or heat of being born
Performance；The carbon black can be applied alone a kind of carbon black or be used in combination or carbon black is combined with a small amount of white carbon black；With 100 parts by weight rubbers
Glue major ingredient meter is not added Si-69 when white carbon black dosage 10 parts by weight of <, adds Si-69, charcoal when white carbon black dosage >=10 parts by weight
Black and white carbon black adds up to dosage to be 45~55 parts by weight.
The low-sulfur height that a small amount of common sulphur is used in the above-mentioned vulcanizing system of the present invention promotees system, to substantially reduce sulphur
Change the thermal degradation of glue polysulfide bond, while also avoiding the bloom phenomenon that rubber compound extrudes and occurs when forming.
The above-mentioned protection system of the present invention uses anti-aging agent RD+4020+ protection wax or anti-aging agent CPL+4020+ protection wax,
4020 have excellent antioxygen, ozone-resistant and resistance to flexion effect, RD, CPL to have splendid heat oxygen aging resistance effect, and protection wax exists
Sizing material surface forms coating of wax film protective film, and this cere can effectively prevent oxygen, ozone infiltration, reach good to thermo-oxidative ageing
Good protective action.
The above-mentioned recovery agent of the present invention is using the anti-recovery agent for being cross-linking type, chemical name are as follows: 1,6- bis- (N,
Two sulphur of N '-bisbenzothiazole carbamyl)-hexane, in the sulfur cross-linking of participation, thermodynamically stable monosulfidic bond, double will be formed
Sulfide linkage polysulfide bond mixing cross-bond flexible similar with tool, structure are following (x≤3): rubber-SX-(CH2)6-SXRubber.
The present invention is compared with prior art, and technological progress is positive and apparent.Tire prepared by the present invention is using
The heat of tire, the wearability of heat ageing rate and raising tyre surface, heat oxygen aging resistance, tearing strength can be reduced in the process and are resisted
Reversion, to improve the service life of tire.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1, a kind of tread rubber being used to prepare high-performance tire, each component raw material is by following parts by weight group
At: 100 parts of natural rubber, 50 parts of carbon black N234,1.5 parts of antioxidant 4020,0.5 part of RD, 1 part of protection wax, 2 parts of stearic acid,
4 parts of ZnO, 0.7 part of sulphur, 1.2 parts of promotor, 0.8 part of anti-recovery agent KA9188,0.15 part of anti-scorching agent CTP.
The finished product is detected its physical property and is shown in Table 1
Embodiment 2, a kind of tread rubber being used to prepare high-performance tire, each component raw material is by following parts by weight group
At: 70 parts of natural rubber, 30 parts of butadiene rubber, 47 parts of carbon black N134,6 parts of white carbon black, 1.5 parts of antioxidant 4020,1 part of RD,
1 part of protection wax, 2 parts of stearic acid, 4 parts of ZnO, 0.6 part of sulphur, 1.2 parts of accelerator NS, anti-recovery agent WY9188 1.2
Part, 0.12 part of anti-scorching agent CTP.
The finished product is detected its physical property and is shown in Table 1
Embodiment 3, a kind of tread rubber being used to prepare high-performance tire, each component raw material is by following parts by weight group
At: 60 parts of natural rubber, 20 parts of butadiene rubber, 20 parts of solution polymerized butadiene styrene rubber, N37540 parts of carbon black, 15 parts of white carbon black, coupling agent
1.5 parts of Si-69,1.5 parts of antioxidant 4020,1 part of RD, 1 part of protection wax, 3 parts of stearic acid, 3 parts of ZnO, 0.3 part of sulphur, promote
Into 1.6 parts of agent, 2.5 parts of anti-recovery agent, 0.10 part of anti-scorching agent CTP.
The each component raw material of comparative example, common tyre surface consists of the following parts by weight: 100 parts of natural rubber, carbon black N234 50
Part, 1.5 parts of antioxidant 4020,0.5 part of RD, 1 part of protection wax, 2 parts of stearic acid, ZnO4 parts, 1.1 parts of sulphur, promotor 1.2
Part, 0.15 part of anti-scorching agent CTP.
The preparation method of above-described embodiment is:
One section of mastication: starting mixer, the rotor speed that mixer is arranged is 45rpm, and mixing pressure is 10MPa, cooling
30 DEG C of coolant-temperature gage, temperature of rotor is 35 DEG C, and butadiene rubber, solution polymerized butadiene styrene rubber and natural rubber is then added, plasticates 35 seconds and mentions
Floating weight, stops 10 seconds pressure floating weights, and melting temperature mentions floating weight to 145 DEG C, and drop revolving speed to 30rpm is stopped 15 seconds and pushed up in pressure
Bolt, when the temperature to 160 DEG C of dumpings；
Two sections of masterbatchings: starting mixer, the rotor speed that mixer is arranged is 50rpm, and mixing pressure is 10MPa, cooling
30 DEG C of coolant-temperature gage, temperature of rotor is 35 DEG C, and one section of plain glue, carbon black, white carbon black, Si-69 is added,
Be kneaded and mention floating weight in 50 seconds, then toward add in kneading chamber zinc oxide, stearic acid, antioxidant 4020, anti-aging agent RD,
Protection wax is kneaded to temperature and mentions floating weight for 135 DEG C, reduces revolving speed to 30rpm, stops 15 seconds pressure floating weights, be kneaded to temperature
For 156 DEG C of dumpings, this glue is two sections of rubber master batch；
Rubber master batch is stood: two sections of rubber master batch being placed in air and are parked 8 hours；
Refining eventually: starting mixer, the rotor speed that mixer is arranged is 20rpm, and mixing pressure is 10MPa, coolant water temperature
30 DEG C DEG C of degree, temperature of rotor is 35 DEG C, by two sections of rubber master batch and sulphur, accelerator NS, anti-recovery agent KA9188 and antiscorching agent
CTP puts into kneading chamber together, mentions floating weight within 45 seconds, stops 10 seconds pressure bolts, and mixing to temperature mentions floating weight when being 85 DEG C, stops 15
Second pressure floating weight, mentions bolt dumping to sizing material temperature for 112 DEG C and obtains finished product.
The finished product is detected its physical property and is shown in Table 1.
Table 1
In the present invention:
Carbon black N134, N234, N375: the production of Cabot chemical industry (Tianjin) Co., Ltd.
White carbon black: (Sol ties up fine chemistry industry additive (Qingdao) for Rhodia fine chemistry industry additive (Qingdao) Co., Ltd
Co., Ltd).
Si-69: Jingzhou Jianghan Fine Chemical Co., Ltd., trade name silane coupling agent Si-69, entitled pair of chemistry-
(γ-triethoxy silicon substrate propyl) tetrasulfide.
Antioxidant 4020: Jiangsu Sheng'Ao Chemical Technology Co., Ltd's production, trade name antioxidant 4020, chemical name are
N- (1,3- dimethylbutyl)-N '-diphenyl-para-phenylene diamine.
Anti-aging agent RD: the production of Tianjin Ke Mai Chemical Co., Ltd., trade name anti-aging agent RD, entitled 2,2, the 4- front three of chemistry
Base -1,2- dihyaroquinoline condensate.
Anti-aging agent CPL: Chemtura Corporation's production, trade name Lowinox CPL.
Accelerator NS: Shandong Yanggu Huatai Chemical Industry Co., Ltd, trade name NS, the entitled N- tert-butyl -2- of chemistry
Benzothiazole sulfenamide.
Anti-recovery agent KA9188:LANXESS CORPORATION, trade nameVP KA 9188 changes
Scientific name is bis- (two sulphur of N, N '-bisbenzothiazole the carbamyl)-hexanes of 1,6-.
Anti-recovery agent WY9188: Shanghai Qi auspicious Chemical Co., Ltd., trade name WY 9188, chemistry entitled 1,6-
Bis- (two sulphur of N, N '-bisbenzothiazole carbamyl)-hexanes.
Anti-scorching agent CTP: the production of Yanggu Hua Tai Chemical Co., Ltd., trade name anti-scorching agent CTP, the entitled N- cyclohexyl of chemistry
Thio neck phthalimide.
The above content, a kind of tread rubber being used to prepare high-performance tire of the present invention, by embodiment with it is general
The tyre surface of logical tire compares discovery, will be played using cross-linking type anti-recovery agent substitution part sulphur and improve wearability, tearing
Intensity, aging conservation rate and the effect for reducing compression heat generation.
Claims (2)
1. a kind of tread rubber for being used to prepare high-performance tire, it is characterised in that: be prepared by the raw material of following parts by weight:
In terms of 100 parts by weight of rubber major ingredients, silane coupling agent Si-69 is not added when white carbon black dosage is lower than 10 parts by weight, when white
Add silane coupling agent Si-69 when carbon black loading >=10 parts by weight, carbon black and white carbon black add up to dosage to be 45~55 parts by weight；
In terms of 100 parts by weight of rubber major ingredients, sulphur in the tread rubber and anti-recovery agent dosage summation be 0.8~
3.3 parts by weight；
The natural rubber is natural rubber SMR20 or natural rubber SIR20；The butadiene rubber is neodymium series along fourth rubber
Glue, ash content≤0.5%, cis--Isosorbide-5-Nitrae content >=96%, organic acid content < 1%；The solution polymerized butadiene styrene rubber is answered for molecular weight
> 200,000, molecular weight distribution > 1.5, combinated styrene content content is between 18~25%, cis--l, 4 butadiene content > 20%；Institute
The promotor stated uses accelerator NS；The anti-aging agent uses antioxidant 4020, anti-aging agent CPL, anti-aging agent RD or protection
Any one or more in wax；The carbon black uses N134 carbon black, N234 carbon black or N375 carbon black；The coupling
Agent uses silane coupling agent Si-69；The anti-recovery agent is bis- (N, N '-the bisbenzothiazole carbamyls two of 1,6-
Sulphur)-hexane, molecular formula are as follows:
The method of the above-mentioned tread rubber for being used to prepare high-performance tire includes the following steps:
1) refine one section of plain glue using rubber internal mixer the step of, start mixer, the rotor speed that mixer is arranged is 45
~55rpm, mixing pressure are 10~15MPa, and 30~40 DEG C of cooling water temperature, temperature of rotor is 30~40 DEG C, is then added suitable
Buna, solution polymerized butadiene styrene rubber and natural rubber plasticate 30~50 seconds and mention floating weight, stop 10~15 seconds pressure floating weights, are kneaded
Temperature mentions floating weight to 145 DEG C, and drop revolving speed to 30~40rpm stops 10~15 seconds pressure floating weights, when the temperature to 155~170 DEG C
Dumping；
2) the step of two sections of masterbatch of a refining start mixer, and the rotor speed that mixer is arranged is 45~55rpm, are kneaded
Pressure is 10~15MPa, and 30 DEG C~40 DEG C of cooling water temperature, temperature of rotor is 30~40 DEG C, is added described in step 1) one section
Mastication, carbon black, white carbon black and coupling agent are kneaded and mention floating weight in 30~50 seconds, then toward adding zinc oxide, tristearin in kneading chamber
Acid, anti-aging agent are kneaded to temperature and mention floating weight for 130~145 DEG C, reduce revolving speed to 20~30rpm, stops in 10~15 seconds pressures
Bolt is pushed up, being kneaded to temperature is 150~160 DEG C of dumpings, this glue is two sections of rubber master batch；
3) two sections of rubber master batch are placed in air and park 6~8h；Refining eventually: starting mixer, the rotor speed that mixer is arranged is 20
~25rpm, mixing pressure are 10~15MPa, and 30 DEG C~40 DEG C of cooling water temperature, temperature of rotor is 30~45 DEG C, by two sections of mothers
Glue and sulphur, promotor, anti-recovery agent put into kneading chamber together with anti-scorching agent CTP, mention within 45~60 seconds floating weight, stop 10
~15 seconds pressure bolts, mixing to temperature mention floating weight when being 80~85 DEG C, stop 10~15 seconds pressure floating weights, are 90 to sizing material temperature
DEG C~115 DEG C mention bolt dumping, bottom sheet is cooled to room temperature, and is obtained and is used to prepare the tread rubber of high-performance tire.
2. a kind of tread rubber for being used to prepare high-performance tire according to claim 1, it is characterised in that: the hard charcoal
It is black to use the high structure white carbon black of high dispersive.
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| CN201710095677.1A CN106832448B (en) | 2017-02-22 | 2017-02-22 | A kind of tread rubber being used to prepare high-performance tire |
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