CN109134981A - The rubber composition and its mixing method and tire of a kind of tire tread for high-performance tire - Google Patents
The rubber composition and its mixing method and tire of a kind of tire tread for high-performance tire Download PDFInfo
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- CN109134981A CN109134981A CN201810915449.9A CN201810915449A CN109134981A CN 109134981 A CN109134981 A CN 109134981A CN 201810915449 A CN201810915449 A CN 201810915449A CN 109134981 A CN109134981 A CN 109134981A
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention belongs to the rubber composition and its mixing method of rubber tyre manufacturing field more particularly to a kind of tire tread for high-performance tire and tires.A kind of rubber composition of the tire tread for high-performance tire, the rubber composition includes at least one rubber components and 0.5 to 40 parts by weight (a) Nanoscale Surface conductive modified silicates for being selected from natural rubber, polyisoprene rubber, polybutadiene rubber and styrene-butadiene copolymer rubber of 100 parts by weight, and (b) carbon black and silica, wherein component (a) and the total amount of (b) they are 40 to 120 parts by weight.Novelty of the invention introduces Nanoscale Surface conductive modified silicate, Nanoscale Surface conductive modified silicate has same silica is identical can also increase the electric conductivity of tire while reducing tire drag, promote tire wetland road holding, so that increasing the dosage of silica in the resistance range that regulation allows, to achieve the purpose that further to drop rolling resistance, mention wet grab.
Description
Technical field
The invention belongs to rubber tyre manufacturing field more particularly to a kind of rubber of the tire tread for high-performance tire
Composition and its mixing method and tire.
Background technique
With the proposition of green tire viewpoint, the rolling resistance and wetland road holding of tire more and more attention has been paid to.It compares
In conventional carbon black, silica is widely used with its distinctive low-rolling-resistance and high wetland road holding in tire art.Though
The introducing of right silica can reduce the rolling resistance of tire, promote the wetland road holding of tire, but due to silica
Introducing meeting so that the wear-resisting property of tire greatly declines, therefore limits usage amount of the silica in tire.
It is generally acknowledged that resistivity is less than 1 × 108The sizing material of Ω cm can smoothly be led except generating in vehicle traveling process
Electrostatic, to meet the requirement of ride safety of automobile.And since silica is megohmite insulant, carbon black, silica are compared
Introducing so that the electric conductivity of tire substantially reduces.Therefore usage amount of the silica in tire is also limited.
Summary of the invention
In order to solve the above technical problems, the first purpose of the invention is to provide a kind of tires for high-performance tire
The rubber composition in face, a second object of the present invention is to provide the mixing method of above-mentioned rubber composition, of the invention
Three purposes are to provide tire tread and tire using above-mentioned composition, and the innovative Nanoscale Surface that introduces of the present invention is led
Electric modified Portland, Nanoscale Surface conductive modified silicate have the identical reduction tire drag of same silica, mention
The electric conductivity of tire can also be increased while rising tire wetland road holding, so that increasing by two in the resistance range that regulation allows
The dosage of silica, to achieve the purpose that further to drop rolling resistance, mention wet grab.
In order to realize first above-mentioned purpose, present invention employs technical solutions below:
A kind of rubber composition of the tire tread for high-performance tire, the rubber composition include 100 parts by weight at least one
Kind is selected from the rubber components of natural rubber, polyisoprene rubber, polybutadiene rubber and styrene-butadiene copolymer rubber
With 0.5 to 40 parts by weight (a) Nanoscale Surface conductive modified silicates, and (b) carbon black and silica, wherein component (a)
(b) total amount is 40 to 120 parts by weight.
For the rubber components of design cost invention building rubber compound composition formula, natural rubber (NR) can be used and/or be based on
The synthetic rubber of diene such as polybutadiene rubber (BR), polyisoprene rubber (IR), styrene-butadiene copolymer rubber
(SBR).These rubber can be used alone or are used in mixed way with their any ratio.
Nanoscale Surface conductive modified silicate used in the present invention, if the amount used is small, result effect is possible to
Become smaller, therefore this is not preferred.On the contrary, the reduction of the properties such as wearability and intensity is possible to become if the amount used is big
It is unacceptable, therefore it is also not preferred.As a further improvement, the Nanoscale Surface conductive modified silicate arrives for 5
40 parts by weight, component (a) and (b) are 60 to 120 parts by weight.
As a further improvement, the nano level modified silicate is alumina silicate or magnesium silicate；The molecule of alumina silicate
Formula is Al2O3·m*SiO2·n*H2O, wherein m=1-5, n=1-5；The molecular formula of magnesium silicate is MgOm*SiO2·n*H2O,
Middle m=1-5, n=1-5.
The present invention due to the adoption of the above technical solution, the introducing and titanium dioxide of Nanoscale Surface conductive modified silicate
The increment of silicon makes the wearability and intensity decline of tire, therefore the present invention uses the silica and granule of high-specific surface area
Diameter, high degree of structuration carbon black make up the decline of wearability and intensity.So that the wearability and intensity of tire are in acceptable model
In enclosing.
As a further improvement, the carbon black iodine absorption number, between 100-180 g/kg, DBP oil factor is in 100-140*
10-5m2Between/kg, the amount of carbon black is 0.05 to 30 parts by weight.Carbon black for use in the present invention is the charcoal of small particle, high degree of structuration
It is black, therefore super abrasive carbon black (SAF) of the partial size in 11-19nm is preferred.If expection is not achieved using large-sized carbon black
Reinforcing effect and the electric conductivity of rubber composition can be made to be deteriorated, therefore be not preferred.
As a further improvement, the silica is high dispersive, the titanium dioxide of high nitrogen adsorption specific surface area (BET)
Silicon, the high-dispersion white carbon black N2 adsorption specific surface area (BET) is in 145-200m2Between/g, the amount of silica is 0.05
To 100 parts by weight.BET is in 165-200m2The high dispersive silica of/g is preferred.Compared to high dispersive silica, such as
The dispersion performance that fruit uses common silica that can make rubber composition is deteriorated, so as to cause the wearability of rubber composition
Reduction with the properties such as intensity is possible to become unacceptable, therefore is not preferred.And low BET silica is to rubber group
The reinforcement for closing object is insufficient, is possible to become to connect so as to cause the reduction of the properties such as the wearability of rubber composition and intensity
By, therefore it is also not preferred.
Silane coupling agent for use in the present invention does not do particular/special requirement, can be the silane containing polysulfide bond, such as Si69 and
Si75；It may be the silane containing sulfydryl, such as Si363 and NXT silane；Or the silane without any sulphur.Silane
Dosage is adjusted according to the dosage of silica.As a further improvement, the composition further includes the weight of silica
6-12% silane coupling agent.
As a further improvement, the White carbon black dispersant SPA 0.5-3.0 parts by weight, activating agent for rubber 2.0-8.0
Parts by weight, rubber antioxidant 4.0-9.0 parts by weight, sulphur 1.0-3.0 parts by weight, accelerator CZ 1.5-3.0 parts by weight with
And aromatic naphtha 0.5-10.0 parts by weight.
As a further improvement, the activating agent for rubber includes ZnO and stearic acid: ZnO is 1.0-4.0 parts by weight, firmly
Resin acid is 1.0-4.0 parts by weight；Rubber antioxidant uses 6PPD and microwax；6PPD is 1.0-4.0 parts by weight, and microwax is
1.0-3.0 parts by weight.
In rubber composition of the invention, in addition to said components, different additives can be mixed, such as is commonly used for
Other fillers in tire and other rubber compositions, vulcanizing agent, vulcanization accelerator, different types of oil, antioxidant, plasticizer
Deng.These additives are with common method mixing to obtain the rubber composition that can be used for vulcanizing.The amount of these additives is also
It can be conventional common mixed amount, on condition that not influencing the purpose of the present invention in turn.
The meter level modified Portland that the present invention uses has function below:
1. meter level modified Portland has Subnano-class partial size, there is good reinforcing property in various rubber.And it has
Lamellar structure has facilitation to the dispersion of filler, to reduce the rolling resistance of tire.
2. nanometer scale silicate particle have extremely strong rigidity, it is microcosmic in can play the role of puncturing moisture film, to reach
To the purpose for increasing tire wetland road holding.
3. nanometer scale silicate part replacement of silicon dioxide is in use, can effectively reduce tire resistance, and can be obvious
The processing performance for improving sizing material, to improve the processing performance of the semi-finished product such as extrusion, calendering.
In order to realize second above-mentioned purpose, present invention employs technical solutions below:
The mixing method of rubber composition described in above-mentioned any one technical solution, this method control rotor speed of banbury mixer
40-60rpm, ram piston pressure 50-60N/cm2, 30-40 DEG C of cooling water of banbury mixer temperature includes the following steps:
One, upper subsidiary engine technique:
1. rubber, meter level surface conductance modified Portland, carbon black, the silica of 60%-80%, silane coupling agent, oxidation is added
Zinc, stearic acid, anti-aging agent, microwax, promotor, pressure floating weight are kept for 20 ~ 40 seconds；
2. rising floating weight is added 20%-40% silica, kept for 10 ~ 15 seconds；
3. pressure floating weight makes sizing material be warming up to 100 ~ 110 DEG C；
4. rising floating weight is added softening oil, kept for 5 ~ 10 seconds；
5. pressure floating weight makes sizing material be warming up to 135 ~ 145 DEG C；
6. pressure floating weight is kneaded sizing material 110 ~ 130 seconds in 140 DEG C of -145 DEG C of constant temperature；
7. sizing material is drained into downwind scheme；
Two, downwind scheme technique:
1. sizing material is made to be warming up to 135 ~ 145 DEG C；
2. 140 DEG C of -145 DEG C of constant temperature are kneaded 250 ~ 350 seconds；
3. dumping is to open mill: sulphur, vulcanization accelerator dispersion is added to 90-100 DEG C in the cooling sizing material that turns refining on a mill
Even, bottom sheet is cooled to room temperature.
In order to realize above-mentioned third purpose, present invention employs technical solutions below:
The tyre surface of high-performance tire, the tire is made using the vulcanization of rubber composition described in above-mentioned any one technical solution.
Novelty of the invention introduces nanometer scale silicate, and nanometer scale silicate has the identical reduction of same silica
The electric conductivity of tire can also be increased while tire drag, promotion tire wetland road holding, so that allow in regulation
Increase the dosage of silica in resistance range, to achieve the purpose that further to drop rolling resistance, mention wet grab.It is especially suitable for height
The tyre surface of performance tire manufactures.Sizing material items physical mechanical property and tire high speed, endurance quality meet normal use requirement.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is checked, is completely described,
And then invention is explained further.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than all implements
Example.The embodiment in the present invention is given, it is obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Embodiment 1 to 7, it is specific as shown in table 1.
The preparation of sample: (this process uses tandem once-through method mixer)
Control rotor speed of banbury mixer 40-60rpm, ram piston pressure 50-60N/cm2, 30-40 DEG C of cooling water of banbury mixer temperature,
Include the following steps:
One, upper subsidiary engine technique:
1. rubber, meter level surface conductance modified Portland silicate, carbon black, silica (60%-80%), silane coupled is added
Agent, zinc oxide, stearic acid, anti-aging agent, microwax, promotor, pressure floating weight are kept for 30 seconds；
2. rising floating weight is added silica (20%-40%), kept for 10 seconds；
3. pressure floating weight makes sizing material be warming up to 100 DEG C；
4. rising floating weight is added softening oil, kept for 5 seconds；
5. pressure floating weight makes sizing material be warming up to 140 DEG C；
6. pressure floating weight is kneaded sizing material 120 seconds in 140 DEG C of -145 DEG C of constant temperature；
7. sizing material is drained into downwind scheme.
Two, downwind scheme technique:
1. sizing material is made to be warming up to 140 DEG C；
2. 140 DEG C of -145 DEG C of constant temperature are kneaded 300 seconds；
3. dumping is to open mill: sulphur, vulcanization accelerator dispersion is added to 90-100 DEG C in the cooling sizing material that turns refining on a mill
Even, bottom sheet is cooled to room temperature.
Obtained rubber composition will be kneaded to vulcanize in pre-prepd mold, the condition of vulcanization is 160 DEG C of *
15min, pressure 15MPa.Then the properties of vulcanized rubber, measurement knot are measured to it using test method as shown below
Fruit is as shown in table 2.
For evaluating the test method of rubber physical performance
Hardness
Hardness based on GB/T 531.1-2008 measurement at room temperature.As a result as shown in table 2, the index of embodiment 1 is denoted as 100.
The value is bigger, and hardness is higher.
300% modulus and breaking strength
The stress of 300% elongation based on GB/T 528-2009 measurement is shown as " 300% modulus ".In addition, during identical test
Load when fracture is shown as " breaking strength ".Each single item is all as shown in table 2.The index of embodiment 1 is denoted as 100.The value is bigger,
Enhancement is higher.
Wearability: Akron (Akron) abrasion and Shao Po that (DIN) abrasion
Akron abrasion based on GB/T 1689-2014 measurement is shown as " Akron abrasion ".The results are shown in Table 2.Embodiment
1 index is denoted as 100.The value is bigger, and abrasion are fewer, and wear-resisting property is more outstanding.
Shao Po that abrasion based on GB/T 9867-2008 measurement are shown as " abrasion of Shao Po that ".The results are shown in Table 2.It is real
The index for applying example 1 is denoted as 100.The value is bigger, and abrasion are smaller, and wear-resisting property is more outstanding.
Dynamic property
Dynamic mechanical analyzer (DMA) is VR-7120 type dynamic thermomechanical analysis apparatus (Japanese UESHIMA company manufacture) for surveying
Determine the dynamic property of vulcanized rubber, test condition are as follows: stretch mode；Frequency, 12Hz；Strain, 7% ± 0.25%；Temperature rise, 2 DEG C/
min.As a result as shown in table 2.The wetland grip performance of tan δ value characterization vulcanized rubber at 0 DEG C, the value of embodiment is marked
It is 100, the value is higher, and wetland grip performance is better.The rolling resistance of tan δ value characterization vulcanized rubber at 60 DEG C, by embodiment
Value be labeled as 100, the value is higher, and rolling resistance is lower.
Electric conductivity
Based on the tire resistance of GB/T 26277-2010 measurement, tire specification is 225/45ZR17 94Y.The results are shown in Table 2.
The index of embodiment 1 is denoted as 100.The value is bigger, and resistivity is lower, and electric conductivity is more outstanding.
Table 1
Table 1
1 footnote of table
* 1:SE-0212 styrene-butadiene copolymer rubber, SUMITOMO CHEMICAL Products
* 2:Zeosil 200MP silica, Sol tie up chemical products, BET=185-205m2/g
* 3:newsil 195MP silica, Wuxi is really at chemical products, BET=185-205m2/g
* 4:Zeosil 1165MP silica, Sol tie up chemical products, BET=155-175m2/g
The auspicious chemical products of * 5: alumina silicate N8, the auspicious Qi in Shanghai
* 6:N134 carbon black, Cabot product
* 7:N234 carbon black, Cabot product
* 8: environment protection oil, shell chemical product
* 9: silane coupling agent Si69, the macro cypress chemical products in Jing Dezhen
* 10: zinc oxide, the wide permanent zinc industry chemical products in Hangzhou
* 11: stearic acid, Hangzhou oil-fat chemical products
* 12: anti-aging agent 6PPD, the holy chemical products difficult to understand in Shandong
* 13: protection wax OK1987, Berry beautifies chemical product
* 14: diphenylguanidine PG, Shandong still Shun's chemical products
* the oil-filled sulphur of 15:10%, the good great chemical products in Weifang
* 16: accelerator CZ, Shandong still Shun's chemical products
Table 2
By comparing embodiment 1 and embodiment 2 as can be seen that when using general silica, due to the dispersion of silica
Property it is bad, cause the hardness of rubber composition to rise, abrasion and intensity have a degree of decline, therefore the present invention select it is high
Dispersed silicon dioxide.
By comparing embodiment 1 and embodiment 3 as can be seen that when using low specific surface area silica, due to two
The reinforcement scarce capacity of silica causes the hardness of rubber composition to decline, at the same wear away and intensity also have it is a degree of under
Drop, therefore the present invention selects the silica of high-specific surface area.
By comparing embodiment 1 and embodiment 4 as can be seen that when using large-sized carbon black, due to the reinforcement of carbon black
Scarce capacity causes the hardness of rubber composition to decline, while abrasion and intensity also have a degree of decline, therefore the present invention
Select the silica of small particle, high degree of structuration.
By comparing embodiment 1 and embodiment 5 as can be seen that Nanoscale Surface conductive modified silicate ought be used on a small quantity
When, although the wearability and intensity of rubber composition only slightly decrease, the rolling resistance of rubber composition, wetland grab ground
The promotion of power and electric conductivity is also less obvious, therefore it is not preferred.
By comparing embodiment 1 and embodiment 6 as can be seen that Nanoscale Surface conductive modified silicate ought be used suitably
When, although the wearability and intensity of rubber composition have a degree of decline, pass through the excellent of silica and carbon black
Change, so that it becomes within an acceptable range, the rolling resistance and wetland road holding performance of rubber composition are greatly mentioned
It rises, while its resistivity also has and significantly declines, electric conductivity is substantially improved.
By comparing embodiment 1 and embodiment 7 as can be seen that Nanoscale Surface conductive modified silicate ought be used largely
When, the decline of the wearability and intensity of rubber composition can become unacceptable, therefore it is not preferred.
Industrial applicibility
According to the present invention, it is grabbed by using Nanoscale Surface conductive modified silicate in reduction tire drag, promotion wetland
While soil fertility, increase the electric conductivity of tire, so that increase the dosage of silica in the resistance range that regulation allows, thus
Achieve the purpose that further to drop rolling resistance, mention wet grab.Simultaneously using the silica of high-specific surface area and small particle, high degree of structuration
Carbon black makes up the decline of wearability and intensity, so that the wearability and intensity of tire are within the acceptable range.The present invention can
For but not limited to the tire tread of high-performance tire.
The above are the descriptions to the embodiment of the present invention to keep this field special by the foregoing description of the disclosed embodiments
Industry technical staff can be realized or using the present invention.Various modifications to these embodiments carry out those skilled in the art
Saying will be apparent.The general principles defined herein can be the case where not departing from the spirit or scope of the present invention
Under, it realizes in other embodiments.Therefore, the present invention is not intended to be limited to these implementation columns shown in this article, but to accord with
Close the widest scope consistent with principles disclosed herein and novel point.
Claims (10)
1. a kind of rubber composition of the tire tread for high-performance tire, which is characterized in that the rubber composition includes 100
Parts by weight at least one is selected from natural rubber, polyisoprene rubber, polybutadiene rubber and styrene-butadiene copolymer rubber
The rubber components of glue and 0.5 to 40 parts by weight (a) Nanoscale Surface conductive modified silicates, and (b) carbon black and silica,
Wherein component (a) and the total amount of (b) are 40 to 120 parts by weight.
2. a kind of rubber composition of tire tread for high-performance tire according to claim 1, which is characterized in that
Nanoscale Surface conductive modified silicate is 5 to 40 parts by weight, and component (a) and (b) are 60 to 120 parts by weight.
3. a kind of rubber composition of tire tread for high-performance tire according to claim 1, which is characterized in that
Nano level modified silicate is alumina silicate or magnesium silicate；The molecular formula of alumina silicate is Al2O3·m*SiO2·n*H2O, wherein m=
1-5, n=1-5；The molecular formula of magnesium silicate is MgOm*SiO2·n*H2O, wherein m=1-5, n=1-5.
4. a kind of rubber composition of tire tread for high-performance tire according to claim 1, which is characterized in that
The carbon black iodine absorption number is between 100-180 g/kg, and DBP oil factor is in 100-140*10-5m2Between/kg, the amount of carbon black is
0.05 to 30 parts by weight.
5. a kind of rubber composition of tire tread for high-performance tire according to claim 1, which is characterized in that
The silica is the silica of high dispersive, high nitrogen adsorption specific surface area (BET), and the high-dispersion white carbon black nitrogen is inhaled
Attached specific surface area (BET) is in 145-200m2Between/g, the amount of silica is 0.05 to 100 parts by weight.
6. a kind of rubber composition of tire tread for high-performance tire according to claim 1, which is characterized in that
The composition further includes the silane coupling agent of the 6-12% of the weight of silica.
7. a kind of rubber composition of tire tread for high-performance tire according to claim 1, which is characterized in that
White carbon black dispersant SPA 0.5-3.0 parts by weight, activating agent for rubber 2.0-8.0 parts by weight, rubber antioxidant 4.0-9.0 weight
Part, sulphur 1.0-3.0 parts by weight, accelerator CZ 1.5-3.0 parts by weight and aromatic naphtha 0.5-10.0 parts by weight.
8. a kind of rubber composition of tire tread for high-performance tire according to claim 7, which is characterized in that
Activating agent for rubber includes ZnO and stearic acid: ZnO is 1.0-4.0 parts by weight, and stearic acid is 1.0-4.0 parts by weight；Rubber antioxidant
Using 6PPD and microwax；6PPD is 1.0-4.0 parts by weight, and microwax is 1.0-3.0 parts by weight.
9. the mixing method that claim 1 ~ 8 any one right wants the rubber composition, which is characterized in that this method control
Rotor speed of banbury mixer 40-60rpm processed, ram piston pressure 50-60N/cm2, 30-40 DEG C of cooling water of banbury mixer temperature, including with
Under step:
One, upper subsidiary engine technique:
1. rubber, meter level surface conductance modified Portland, carbon black, the silica of 60%-80%, silane coupling agent, oxidation is added
Zinc, stearic acid, anti-aging agent, microwax, promotor, pressure floating weight are kept for 20 ~ 40 seconds；
2. rising floating weight is added 20%-40% silica, kept for 10 ~ 15 seconds；
3. pressure floating weight makes sizing material be warming up to 100 ~ 110 DEG C；
4. rising floating weight is added softening oil, kept for 5 ~ 10 seconds；
5. pressure floating weight makes sizing material be warming up to 135 ~ 145 DEG C；
6. pressure floating weight is kneaded sizing material 110 ~ 130 seconds in 140 DEG C of -145 DEG C of constant temperature；
7. sizing material is drained into downwind scheme；
Two, downwind scheme technique:
1. sizing material is made to be warming up to 135 ~ 145 DEG C；
2. 140 DEG C of -145 DEG C of constant temperature are kneaded 250 ~ 350 seconds；
3. dumping is to open mill: sulphur, vulcanization accelerator dispersion is added to 90-100 DEG C in the cooling sizing material that turns refining on a mill
Even, bottom sheet is cooled to room temperature.
10. high-performance tire, which is characterized in that the tyre surface of the tire wants described using claim 1 ~ 8 any one right
Rubber composition vulcanization is made.
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| CN110183744A (en) * | 2019-04-26 | 2019-08-30 | 中策橡胶集团有限公司 | A kind of mixing method of snowfield tire and snowfield tire tread rubber composition and rubber composition |
| CN110372931A (en) * | 2019-08-02 | 2019-10-25 | 中策橡胶集团有限公司 | A kind of rubber composition and refining gluing method and low tire drag tire using the composition |
| CN111592676A (en) * | 2019-02-21 | 2020-08-28 | 正新橡胶工业股份有限公司 | Conductive composite colloid |
| CN111732765A (en) * | 2020-07-17 | 2020-10-02 | 中国科学院长春应用化学研究所 | High-elongation-at-break diene rubber compound and preparation method thereof |
| CN111763356A (en) * | 2020-07-24 | 2020-10-13 | 三角轮胎股份有限公司 | Antistatic tire tread rubber composition and pneumatic tire thereof |
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