CN107216503B - A kind of tread rubber of environment-friendly type four seasons tire - Google Patents
A kind of tread rubber of environment-friendly type four seasons tire Download PDFInfo
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- CN107216503B CN107216503B CN201710601257.6A CN201710601257A CN107216503B CN 107216503 B CN107216503 B CN 107216503B CN 201710601257 A CN201710601257 A CN 201710601257A CN 107216503 B CN107216503 B CN 107216503B
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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
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- 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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/283—Halogenated homo- or copolymers of iso-olefins
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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
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- 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
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/02—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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- 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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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
The application belongs to tire manufacturing techniques field, and in particular to a kind of tread rubber of automobile tires of environment-friendly type four seasons tire.The tire tread glue includes Butadiene-Styrene Rubber, natural rubber, cis-butadiene cement, brombutyl, zinc oxide, stearic acid, age resistor, protection wax, environment-friendly aromatic oil, softening agent, white carbon, carbon black, silane coupler, polyethylene glycol, extraordinary sulphur, accelerator NS, accelerator CBS, diphenylguanidine PG, anti-scorching agent CTP.The tread rubber of automobile tires applicable elements that the application provides are wide, and (being less than 7 degree) at low temperature still can keep pliability, be not easy the cracking that hardens；(60 DEG C, 30 days) deformation rate is low at high temperature, and the tread rubber deformation rate that embodiment 1 provides is only 4%, far below comparative example (>=10%), has stronger oxidation resistance；And mechanical property retentivity is good before and after high-temperature oxydation.
Description
Technical field
The invention belongs to tire manufacturing techniques field, and in particular to a kind of tread rubber of environment-friendly type four seasons tire.
Background technology
With the fast development of the high speed development of auto industry and transportation, highway construction particularly highway,
There is an urgent need to various high-performance tires.Successively occur so-called safety tread, energy-saving tire, high-performance tire, summer tires,
Tire used in winter, green tire and environment-friendly type all season tyre.Conventional tyre, such as summer tires, rubber can be hardened and lose at low temperature
Frictional force, in order to ensure safety, tire twice need to be changed every year, if things go on like this, is not only wasted time and energy, it is also possible to can be to wheel hub
Performance impacts.
Four seasons tire then has a wide range of application, and whole year is available, high temperature resistant, wear-resisting, good heat dissipation dry and on wetland；In snowfield
Good earth-grasping force can be provided with when being travelled in ice face, and tractive force and brake force are high.This requires four seasons tire can be real on formula
Existing winter still can keep pliability, be not easy the cracking that hardens；Ageing resistace strengthens at high temperature simultaneously, has and preferably uses
Life-span.
Existing hold has the more correlative study on automobile tire in art, but not and sees and meet above-mentioned four seasons tire performance requirement
Tread rubber document report.Such as Chinese patent application 201310343659.2《A kind of motor tyre casing tread rubber》Disclose
A kind of motor tyre casing tread rubber.The motor tyre casing tread rubber of the invention, is made up of the following raw material：Natural rubber, fourth
It is benzene rubber, zinc oxide, stearic acid, antioxidant 4010NA, antioxidant H, protection wax, intermediate super abrasion furnace black, silane coupler, two sweet
Alcohol, petroleum line softener, accelerant NOBS, altax, accelerant CZ, sulphur.The tread rubber has good cut resistant, resistance to
Puncture, cracking resistance mouth extends and tear-proof chip off-falling performance, in the particularly suitable work progress of motor tyre casing tread rubber of the invention
Pavement conditions are poor and fair speed under the conditions of use, but this tire of vapour of the invention is difficult to reach anti-in wet and slippery snowfield
The requirement of slip energy.
Chinese patent application 201610512571.2《A kind of anti-slippery snowfield tire tread and preparation method thereof》Disclose
A kind of anti-slippery snowfield tire tread and preparation method thereof.The invention is by adjusting poly- butadiene-styrene rubber, natural rubber, cis-butadiene cement, ring
The dosage of the component such as aromatic naphtha and accelerator is protected, tyre surface hardness is reduced, improves the wet-sliding resistant performance of tread rubber, effectively increase tire
The physical and mechanical properties such as face glue wearability, tear-proof, tensile strength, the wet-sliding resistant performance of especially tread rubber have obtained significantly carrying
It is high.But antioxygenic property of the tread rubber when temperature is higher is poor, and summer is easily deformed, the entirety that have impact on tire uses the longevity
Life.
The content of the invention
In order to solve above mentioned problem of the prior art, present invention purpose is to provide a kind of dry ground, wetland, snow
Be respectively provided with ground and ice face superior performance, have preferable antioxygenic property environment-friendly type four seasons tire tread rubber of automobile tires.
In order to realize foregoing invention purpose, the invention provides a kind of tread rubber of automobile tires of environment-friendly type four seasons tire, its
Include each component of following parts by weight：
Preferably, the natural rubber is cis natural polyisoprene rubber SMR20#；
Preferably, the cis-butadiene cement is rare earth cis-butadiene cement；
Preferably, the age resistor is N- phenyl-α-aniline, N- phenyl-N'- isopropyls-p-phenylenediamine, N-N'- hexichol
At least one of base-p-phenylenediamine and N- (1,3- dimethyl) butyl-N'- diphenyl-para-phenylene diamines.
It is further preferred that the age resistor is N- phenyl-α-aniline, N- phenyl-N'- isopropyls-p-phenylenediamine, N-
N'- diphenyl-p-phenylenediamines are 1 by weight：1：1 mixing.
Preferably, the density of gained sizing material is 1-1.5kg/dm3；More preferably 1-1.3kg/dm3；It is further excellent
Elect 1-1.2kg/dm as3；Most preferably 1.01-1.188kg/dm3；Such as 1.086kg/dm3, 1.088kg/dm3Or 1.09kg/dm3。
Preferably, the softening agent is environment protection oil, wherein, the main component of environment protection oil is naphthenic oil.
Preferably, the silane coupler is double-(3- triethoxysilanes propyl group)-tetrasulfide.
Preferably, the mean molecule quantity of the polyethylene glycol is 380~420, and viscosity is 37~45mm2/s。
Preferably, the protection wax is OKERIN 11018.
Preferably, the extraordinary sulphur is graininess, and active ingredient sulfur content is 80%, is had in rubber preferably mixed
Dissolubility, interior no blooming, holding gum base ingredients and performance are homogeneous during storage for sizing material；The sizing material bonding force caused by bloom can be overcome
The shortcomings that poor；Also there is high-temperature stability.
It is further preferred that the tread rubber of automobile tires of the environment-friendly type four seasons tire includes each group of following portions by weight
Point：
It is further preferred that the tread rubber of automobile tires of the environment-friendly type four seasons tire includes the group of following portions by weight
Point：
Wherein, the application uses four kinds of solution polymerized butadiene styrene rubber, natural rubber, cis-butadiene cement and bromination butadiene-styrene rubber rubber simultaneously
With, there is preferable compatibility, the compositions such as carbon black, white carbon, age resistor can be significantly improved and disperseed in rubbery system, so as to
The rolling resistance and heat of tire can substantially be reduced, make obtained tire have excellent wearability, flexible resistance, heat resistance,
The advantages that lower temperature resistance, the cracking of resistance to rill, resilience is good, and permanent deformation is small, hardness is moderate；And to wet road surface gripping power
Greatly, heat resistance and at high temperature for a long time exposure after flexible resistance it is good, rolling resistance is low, wet-sliding resistant performance and wet traction property
Can be excellent.
In terms of described stearic acid has the function that following four：1) softening and plasticization；2) exterior lubricant；3) promote
Enter the scattered of carbon black, white carbon and zinc oxide；4) and zinc oxide reaction promotes its activity, as vulcanization accelerator additive.
The white carbon and silane coupler of addition, the asperity of formation can improve the anti-of tire by puncturing moisture film
It is wet skidding performance；Improve wearability, improve tyre life.
The polyethylene glycol can form network structure in rubber, and silane coupler collective effect improves the work of white carbon
Property and dispersiveness.
The accelerator of the application is had preferably scattered using accelerator NS, accelerator CBS, diphenylguanidine PG three mixing
Performance, product surface atomization, bloom can be avoided while rubber vulcanization is promoted；And then be advantageous to improve product high temperature resistant,
Antioxygenic property and mechanical property.Result of the test shows, in the case where other conditions are constant, only replaces with diphenylguanidine PG
Accelerator DZ, high temperature deformation (60 DEG C, 30 days degradations) rate rise 5%-20% of product.
Compared with prior art, the beneficial effects of the present invention are：
(1) four seasons tire tread glue applicable elements provided by the invention are wide, and (being less than 7 degree) at low temperature still can keep soft
Softness, it is not easy the cracking that hardens；(60 DEG C, 30 days) deformation rate is low at high temperature, and the tread rubber deformation rate that embodiment 1 provides is only
4%, far below comparative example (>=10%), there is stronger oxidation resistance；And mechanical property retentivity before and after high-temperature oxydation
It is good.
(2) four seasons tire tread glue that the application provides is to wet road surface, can be provided on snowfield and ice face, during traveling excellent
Earth-grasping force.
Embodiment
The present invention is further elaborated with reference to embodiment.These embodiments are only in order at purpose of explanation,
And do not limit the scope of the invention and essence.Unless otherwise instructed, the representation of component is parts by weight in the present invention.Following table
1 is embodiment 1-6 four seasons type automobile tire tread glue formula：
Wherein, the model SSBRF3438A of the Butadiene-Styrene Rubber；The model of the bromination butylbenzene base rubber
BrIIR1301；The natural rubber is natural rubber SMR20#；The cis-butadiene cement is rare earth cis-butadiene cement, and production model is
NdBR60；The model HCSIL-900MP (being purchased from Wuxi Heng Cheng Silicon Industry Co., Ltd.) of the white carbon；The softening agent is ring
Protect oil；The silane coupler is double-(3- triethoxysilanes propyl group)-tetrasulfide；The mean molecule of the polyethylene glycol
Measure as 380~420, viscosity is 37~45mm2/s；The protection wax is OKERIN 11018；The age resistor be N- phenyl-α-
Aniline, N- phenyl-N '-isopropyl-p-phenylenediamine, N-N '-diphenyl-p-phenylenediamine are 1 by weight：1：1 mixing.
The tread rubber of automobile tires recipe list of table 1
| Formula | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Butadiene-Styrene Rubber | 25 | 30 | 35 | 40 | 50 | 55 |
| Natural rubber | 15 | 25 | 30 | 20 | 10 | 15 |
| Cis-butadiene cement | 50 | 15 | 20 | 10 | 28 | 15 |
| Brominated butyl rubber | 10 | 30 | 15 | 30 | 12 | 15 |
| Zinc oxide | 4 | 4.5 | 3 | 3.5 | 4 | 2.5 |
| Stearic acid | 3.5 | 2 | 2.5 | 2.2 | 2.5 | 2.0 |
| Age resistor | 3.5 | 4.5 | 2.5 | 2.3 | 4 | 4.5 |
| Protection wax | 2 | 2 | 3.5 | 3.8 | 2.5 | 2.5 |
| Environment-friendly aromatic oil | 10 | 25 | 30 | 28 | 25 | 15 |
| Softening agent | 2.5 | 2.5 | 3 | 2 | 2.5 | 2.5 |
| White carbon | 35 | 45 | 50 | 50 | 55 | 65 |
| Carbon black | 35 | 25 | 15 | 15 | 20 | 10 |
| Silane coupler | 3.5 | 4.5 | 5 | 5 | 5.5 | 6.5 |
| Polyethylene glycol | 1.5 | 2 | 3 | 1 | 1.3 | 1.8 |
| Extraordinary sulphur | 3 | 2.4 | 2.5 | 2.8 | 4.5 | 3.8 |
| Accelerator NS | 1.2 | 2.5 | 2.3 | 2.4 | 2.5 | 2.2 |
| Accelerator CBS | 1.1 | 1.3 | 2.4 | 2.8 | 3 | 3.6 |
| Diphenylguanidine PG | 1.1 | 1.2 | 1.4 | 1.6 | 1.6 | 1.8 |
| Anti-scorching agent CTP | 2.2 | 1.5 | 0.5 | 1.2 | 2.5 | 1.8 |
Note：Numeral is all parts by weight in table.
The preparation technology of tread rubber of automobile tires is as follows：
1st, the formula in table 1, Butadiene-Styrene Rubber, natural rubber, cis-butadiene cement, brominated butyl are added in banbury
Glue, age resistor, protection wax, environment-friendly aromatic oil, softening agent, white carbon, carbon black and silane coupler, mix 10-30min and heat up
To 180-200 DEG C, masterbatch is obtained, then progressively cools to 65-75 DEG C；
2nd, also according to the formula in table 1, zinc oxide, tristearin are added in the masterbatch obtained in mill to step 1
Acid, accelerator NS, accelerator CBS, diphenylguanidine PG and extraordinary sulphur, and at a temperature of 55-60 DEG C, said mixture is mixed
10-30min is refined, so as to obtain corresponding elastomeric compound；
3rd, it elastomeric compound will be molded as made from the above method on vulcanizing press, rubber flat plate or thin slice (sample is made
Product), for carrying out the test of physicochemical properties.
Comparative example 1
A kind of tread rubber of automobile tires, include each component of following parts by weight：
The preparation technology of tread rubber of automobile tires is the same as embodiment 1.
Comparative example 2
A kind of tread rubber of automobile tires, include the component of following portions by weight：
The preparation technology of tread rubber of automobile tires with embodiment 1, by above-mentioned raw materials proportion ingredient, is mixed by banbury substantially
Refining, produces elastomeric compound, and tyre surface semi-finished product are made in elastomeric compound by the mode extruded with extruder.
Comparative example 3
A kind of tread rubber of automobile tires, its difference from Example 1 is, without antiscorching agent.
Comparative example 4
A kind of tread rubber of automobile tires, its difference from Example 1 be,
Accelerator NS 1.2
Accelerator CBS 1.1.
Comparative example 5
A kind of tread rubber of automobile tires, its difference from Example 1 are
Polymolecularity sulphur (sulfur content >=95) 3.
Verify embodiment
1st, MDA is detected
Tread rubber sample obtained by embodiment 1,5 and comparative example 1-5 is subjected to contrast test.
Test requirements document:Mark is carried out in storage independent to vulcanized test specimens, and each 10 samples of vulcanized test specimens do MDA detections, statistics 10
Individual statistical average is contrasted, as a result as shown in table 2 below.(note：60 DEG C and above tand values it is the smaller the better；Less than 60 DEG C
Tand values are the bigger the better.)
The vulcanized test specimens MDA detection statistics results of table 2
Earth-catching property of the tread rubber that the application provides it can be seen from the data of table 2 in ice face, wetland, dry ground is excellent
In comparative example.
2nd, finished product tire machine tool capability is tested
The tread rubber of Example 1 and comparative example 1-5 carry out indoor high-speed experiment, and result of the test is as shown under table 3.
High-speed performance test result in the finished product proloculum of table 3
The tire tread glue anti-wear performance that the application provides it can be seen from the data of table 3, long lifespan.
3rd, tread rubber antioxygenic property is tested
Test method：Semi-finished product made from embodiment 1,5 and comparative example 1-5 and shaping fetus will individually be deposited and carry out mark
Know, every group of sample number is 500.Under the conditions of 60 DEG C, aging 30 days.Finished appearance matter before experiment and in 30 days on-tests
It is as shown in table 4 below to measure inspection data progress comparing result；During to before sample determination test made from embodiment 1 and 30 days after beginning
Mechanical property, measurement result is as shown in table 5 below.
The finished product tire presentation quality of table 4 counts
Tread rubber mechanics properties testing result made from the embodiment 1 of table 5
By table 4, table 5 measurement result it can be seen from the application provide tread rubber in high temperature (60 DEG C, 30g days) condition
There is down preferable non-deformability, be superior to comparative example 1-5；And the mechanical property of tread rubber before ageing after retentivity
It is good.
Above-described embodiment is only not limited as the explanation purpose of the present invention, the scope of the present invention.To the skill of this area
The modification made for art personnel is it will be apparent that the present invention is only limited by scope.
Claims (10)
1. a kind of tread rubber of automobile tires of environment-friendly type four seasons tire, it includes each component of following parts by weight：
2. tread rubber of automobile tires according to claim 1, include each component of following portions by weight：
3. tread rubber of automobile tires according to claim 1 or 2, the natural rubber is cis natural polyisoprene rubber
Glue SMR20#.
4. tread rubber of automobile tires according to claim 1 or 2, the age resistor be N- phenyl-α-aniline, N- phenyl-
In N'- isopropyls-p-phenylenediamine, N-N'- diphenyl-p-phenylenediamines and N- (1,3- dimethyl) butyl-N'- diphenyl-para-phenylene diamines
At least one.
5. tread rubber of automobile tires according to claim 4, the age resistor is N- phenyl-α-aniline, N- phenyl-N'-
Isopropyl-p-phenylenediamine, N-N'- diphenyl-p-phenylenediamines are 1 by weight：1：1 mixing.
6. tread rubber of automobile tires according to claim 1 or 2, the density of gained sizing material is 1-1.5kg/dm3。
7. tread rubber of automobile tires according to claim 1 or 2, the silane coupler is double-(3- triethoxysilanes
Propyl group)-tetrasulfide.
8. tread rubber of automobile tires according to claim 1 or 2, the mean molecule quantity of the polyethylene glycol for 380~
420, viscosity is 37~45mm2/s。
9. tread rubber of automobile tires according to claim 1 or 2, the protection wax is OKERIN 11018.
10. tread rubber of automobile tires according to claim 1 or 2, the softening agent is environment protection oil.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109021339A (en) * | 2018-06-08 | 2018-12-18 | 明光速耐德实心轮胎有限公司 | A kind of high intensity aerated solid tyre and preparation method |
| CN114891286A (en) * | 2022-05-27 | 2022-08-12 | 四川远星橡胶有限责任公司 | High-grip-ability and high-cold-resistance tread rubber and preparation method thereof |
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|---|---|---|---|---|
| CN102690450A (en) * | 2012-06-25 | 2012-09-26 | 腾森橡胶轮胎（威海）有限公司 | Snowfield motorcycle tire rubber composition |
| CN103435871A (en) * | 2013-08-08 | 2013-12-11 | 济南开发区星火科学技术研究院 | Automobile tire casing tread rubber |
| CN105778172A (en) * | 2016-04-11 | 2016-07-20 | 泉州集友鞋业有限公司 | High-anti-slippery abrasion-resistant material for shoes and preparation method thereof |
| CN106046459A (en) * | 2016-06-30 | 2016-10-26 | 肇庆骏鸿实业有限公司 | Wet-skid-resistant snowfield tire tread rubber and preparation method thereof |
| CN106397861A (en) * | 2016-09-13 | 2017-02-15 | 沈阳化工大学 | Method for improving dispersion of hard carbon black in NR/SBR/BR by using PEG |
-
2017
- 2017-07-21 CN CN201710601257.6A patent/CN107216503B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690450A (en) * | 2012-06-25 | 2012-09-26 | 腾森橡胶轮胎（威海）有限公司 | Snowfield motorcycle tire rubber composition |
| CN103435871A (en) * | 2013-08-08 | 2013-12-11 | 济南开发区星火科学技术研究院 | Automobile tire casing tread rubber |
| CN105778172A (en) * | 2016-04-11 | 2016-07-20 | 泉州集友鞋业有限公司 | High-anti-slippery abrasion-resistant material for shoes and preparation method thereof |
| CN106046459A (en) * | 2016-06-30 | 2016-10-26 | 肇庆骏鸿实业有限公司 | Wet-skid-resistant snowfield tire tread rubber and preparation method thereof |
| CN106397861A (en) * | 2016-09-13 | 2017-02-15 | 沈阳化工大学 | Method for improving dispersion of hard carbon black in NR/SBR/BR by using PEG |
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