CN107759843A - All-steel radial tyre shoulder wedge composition and preparation method thereof - Google Patents
All-steel radial tyre shoulder wedge composition and preparation method thereof Download PDFInfo
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- CN107759843A CN107759843A CN201710876459.1A CN201710876459A CN107759843A CN 107759843 A CN107759843 A CN 107759843A CN 201710876459 A CN201710876459 A CN 201710876459A CN 107759843 A CN107759843 A CN 107759843A
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- C08K3/02—Elements
- C08K3/06—Sulfur
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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
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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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/45—Heterocyclic compounds having sulfur in the ring
- C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
- C08K5/47—Thiazoles
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/548—Silicon-containing compounds containing sulfur
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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
- C08L2312/00—Crosslinking
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Abstract
The invention provides a kind of all-steel radial tyre shoulder wedge composition, specifically a kind of high-performance all-steel radial tyre shoulder wedge rubber composition, its composition is counted in parts by weight to be made up of the material of following parts by weight：100 parts of natural rubber, 2~8 parts of activator, 1.5~5 parts of vulcanizing agent, 2~3 parts of age resistor, 30~50 parts of filler, 1.0~3.5 parts of coupling agent, 0.5~1.5 part of response type crosslinking agent, 0.1~0.3 part of antiscorching agent.A kind of high-performance all-steel radial tyre shoulder wedge of the present invention has the performances such as heat is low, heat endurance is good, improves the stability of the mechanical property such as stress at definite elongation, tensile strength during tire running, improves the service life of tire.
Description
Technical field
The present invention relates to a kind of all-steel radial tyre shoulder wedge composition and preparation method thereof, belong to rubber tyre skill
Art field.
Background technology
Heart of the shoulder wedge as tire, shoulder stress concentrates position, by prolonged in tire in the process of moving
Under deformation and flexion, shoulder heat is high, and pad glue mechanical properties decrease is fast, easily causes the tire symptom such as shoulder sky.Therefore tire is needed
Shoulder to pad glue possess that heat is low, flexible resistance is good and high temperature under sizing material heat endurance it is good.
In order to ensure the flexing fatigue performance of shoulder wedge, shoulder wedge uses the vulcanizing system of the low rush of high-sulfur mostly, and
For the polysulfide bond that this vulcanizing system is formed, thermostabilization is poor under tire high temperature traveling, once the decline of mechanical property, easily
There is the change of shoulder stress, shoulder sky easily occur.In order to lift tire quality, shoulder sky is reduced, the heat for improving shoulder pad glue is steady
Qualitative and low-heat-generation is particularly important.Most of tire enterprises are using raising aging inhibitor dosage and anti-recovery agent at present
To lift the heat endurance of shoulder wedge and reduction is reverted problem, although having certain effect, DeGrain, and cost
It is high.To improve the service life of tire, improve the heat endurance of shoulder wedge and reduce pad glue heat, become tire research and development people
The important topic of member.
The content of the invention
It is described it is an object of the invention to provide a kind of high-performance all-steel radial tyre shoulder wedge rubber composition
This high-performance all-steel radial tyre shoulder wedge rubber composition solve tyre shoulder wedge heat height, stress at definite elongation,
The technical problems such as the stability difference of the mechanical properties such as tensile strength, while ensure the required of shoulder wedge during tire running
Flexing fatigue performance.
The present invention is achieved by the following technical solutions：
In a first aspect, the invention provides a kind of all-steel radial tyre shoulder wedge composition, it is included by weight
The following component of number meter：
Preferably, described filler is the mixture of carbon black and white carbon, and wherein the dosage of carbon black is 10~35
Part, the dosage of white carbon is 15~30 parts；Described coupling agent is double-[γ-(triethoxysilicane) propyl group] tetrasulfide, dosage
For the 10%~12% of white carbon parts by weight；Described response type crosslinking agent is double (N, N '-the bisbenzothiazole carbamyls of 1,6-
Two sulphur)-hexane.Preferably, the optional N330 carbon blacks of carbon black, N326 carbon blacks or N375 super-normal structure blacks, reinforcing effect is good, processability
Can be good, dosage is 10~35 parts by weight；White carbon can use the high structure white carbon 175GR or 165GR of high dispersive, white carbon dosage
For 15~30 parts by weight, and the total amount of carbon black and white carbon is in 30~50 parts by weight；The coupling agent is double-[γ-(three ethoxies
Base silicon) propyl group] tetrasulfide, its dosage is the 10%~12% of white carbon parts by weight, and dialogue carbon blacksurface carries out former during mixing
Position is modified, and directly chemical bonding reduces the stagnant of rubber composition between modified white carbon black filler and rubber macromolecule chain
Aftereffect, so as to effectively reduce the heat under rubber composition dynamic situation.
Preferably, the vulcanizing agent is insoluble sulfur and accelerator, the vulcanizing agent and response type crosslinking agent
Parts by weight sum be 2~6.5 parts.Preferably, the insoluble sulfur is IS7520.
Preferably, the accelerator is N tert butyl benzothiazole 2 sulfenamide, and the lubricant is selected from hard
One or both of resin acid and zinc oxide, the age resistor be selected from N- (1,3- dimethylbutyl)-N '-diphenyl-para-phenylene diamine,
One or both of 2,2,4- trimethyl -1,2- dihyaroquinoline condensates, the antiscorching agent are N- cyclohexyl thio neighbour's benzene
Dicarboximide, the activating agent are stearic acid and zinc oxide.
With insoluble sulfur, accelerator N-tertiary butyl -2-[4-morpholinodithio sulfenamide and response type crosslinking agent 1,6- it is double (N,
N '-the sulphur of bisbenzothiazole carbamyl two)-hexane formation vulcanizing system, it is soft that the similar polysulfide bond of thermodynamically stable tool can be formed
Property mixing cross-bond, structure is following (x≤3)：Rubber-Sx-(CH2)6-Sx- rubber, improve shoulder wedge rubber composition
Heat endurance, while greatly reduce elastomeric compound and occur bloom phenomenon in extrusion and shaping.
Second aspect, present invention also offers a kind of preparation of all-steel radial tyre shoulder wedge composition as the aforementioned
Method, it includes：
The preparation process of one section of masterbatch；
The step of refining eventually.
Preferably, the preparation process of one section of masterbatch includes following operation：
Start banbury, the rotor speed for setting banbury is 45~55rpm, and mixing pressure is 10~15MPa, cooling water
30~40 DEG C of temperature, temperature of rotor are 30~40 DEG C, add natural rubber, carbon black, white carbon and coupling agent Si-69, are kneaded 30
Carry floating weight within~50 seconds, then toward zinc oxide, stearic acid, age resistor is added in kneading chamber, it is 130~148 DEG C to be kneaded to temperature
Floating weight, reduction rotating speed to 25~40rpm are carried, stops 10~15 seconds pressure floating weights, it is 145~160 DEG C of dumpings to be kneaded to temperature,
Obtain one section of masterbatch；
Preferably, the step of refining eventually includes following operation：
After one section of masterbatch is stood into 6~8h in atmosphere, start banbury, set the rotor speed of banbury for 20~
30rpm, mixing pressure are 10~15MPa, 30~40 DEG C of cooling water temperature, and temperature of rotor is 30~45 DEG C, by one section of masterbatch,
Sulphur, accelerator, response type crosslinking agent put into kneading chamber together with antiscorching agent, carry within 45~60 seconds floating weight, stop 10~15 seconds
Bolt is pressed, is kneaded to temperature when being 80~85 DEG C and carries floating weight, stop 10~15 seconds pressure floating weights, it is 90~103 to treat sizing material temperature
DEG C bolt dumping is carried, bottom sheet is cooled to room temperature, obtains the all-steel radial tyre shoulder wedge composition.
Compared with prior art, the present invention has following beneficial effect：
The heat at tire shoulder position can be reduced during tire used prepared by the present invention and improves shoulder wedge
Heat endurance, while ensure shoulder wedge flexing fatigue performance, wheel tire shoulder sky problem is reduced, so as to improve Life of Tyre.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
In the present invention：
Carbon black N330, N326, N375：Cabot chemical industry (Tianjin) Co., Ltd produces.
White carbon：Sieve sub- fine chemistry industry additive (Qingdao) Co., Ltd (Sol dimension fine chemistry industry additive (Qingdao)
Co., Ltd).
Antioxidant 4020：Jiangsu Sheng'Ao Chemical Technology Co., Ltd produces, trade name antioxidant 4020, and chemical name is
N- (1,3- dimethylbutyl)-N '-diphenyl-para-phenylene diamine.
Anti-aging agent RD：Tianjin Ke Mai Chemical Co., Ltd.s produce, trade name anti-aging agent RD, entitled 2,2, the 4- front three of chemistry
Base -1,2- dihyaroquinoline condensate.
Accelerator NS：Shandong Yanggu Huatai Chemical Industry Co., Ltd, trade name NS, the entitled N- tert-butyl groups -2- of chemistry
Benzothiazole sulfenamide.
Response type crosslinking agent：LANXESS CORPORATION commodity, double (N, N '-the bisbenzothiazole ammonia of entitled 1, the 6- of chemistry
The sulphur of base formyl two)-hexane.
Anti-recovery agent WK901, the production of Jing He Chemical Co., Ltd.s of Wuhan City, double (the lemon Kang Ya acyls of entitled 1, the 3- of chemistry
Amine methyl) benzene.
Anti-scorching agent CTP：Yanggu Hua Tai Chemical Co., Ltd.s produce, trade name anti-scorching agent CTP, the entitled N- cyclohexyl of chemistry
Thiophthalimide.
Embodiment 1
The present embodiment is related to a kind of high-performance all-steel radial tyre shoulder wedge rubber composition, and each component raw material is by such as
Lower parts by weight composition：100 parts of natural rubber, 15 parts of 20 parts of carbon black N330, white carbon 165GR, coupling agent Si-691.5 parts, prevent
Old 4,020 1.3 parts of agent, 0.7 part of RD, 2 parts of stearic acid, 4 parts of ZnO, 1.25 parts of insoluble sulfur, 1.7 parts of accelerator, response type
0.75 part of crosslinking agent, 0.13 part of anti-scorching agent CTP.
Embodiment 2
The present embodiment is related to a kind of high-performance all-steel radial tyre shoulder wedge rubber composition, and each component raw material is by such as
Lower parts by weight composition：100 parts of natural rubber, 20 parts of 20 parts of carbon black N326, white carbon 175GR, coupling agent Si-692.2 parts, prevent
Old 4,020 1.3 parts of agent, 0.7 part of RD, 2 parts of stearic acid, 4 parts of ZnO, 1.9 parts of insoluble sulfur, 1.2 parts of accelerator, response type
0.5 part of crosslinking agent, 0.13 part of anti-scorching agent CTP.
Comparative example 1
This comparative example is related to a kind of high-performance all-steel radial tyre shoulder wedge rubber composition, 100 parts of natural rubber,
32 parts of carbon black N330,1.3 parts of antioxidant 4020,0.7 part of RD, 2 parts of stearic acid, 4 parts of ZnO, insoluble sulfur IS7520
3.7 parts, 0.65 part of accelerator NS, 0.5 part of anti-recovery agent WK901,0.15 part of anti-scorching agent CTP.
The preparation method following steps of above-described embodiment and comparative example：
One section of masterbatch：Start banbury, the rotor speed for setting banbury is 50rpm, and mixing pressure is 10MPa, cold
But 30 DEG C of coolant-temperature gage, temperature of rotor are 35 DEG C, add natural rubber, carbon black, white carbon, Si-69, are kneaded 50 seconds and carry floating weight,
Then toward zinc oxide, stearic acid, age resistor is added in kneading chamber, it is kneaded and is 135 DEG C to temperature and carries floating weight, reduce rotating speed extremely
30rpm, 15 seconds pressure floating weights are stopped, it is 156 DEG C of dumpings to be kneaded to temperature, and this glue is one section of masterbatch.
Masterbatch is stood：One section of masterbatch is placed in air and parked 8 hours.
Finished composition：Start banbury, the rotor speed for setting banbury is 25rpm, and mixing pressure is 10MPa, cooling water
30 DEG C of temperature, temperature of rotor is 35 DEG C, by one section of rubber master batch and sulphur, accelerator NS, response type crosslinking agent together with anti-scorching agent CTP
Kneading chamber is put into, carries within 45 seconds floating weight, stops 10 seconds pressure bolts, is kneaded to temperature when being 85 DEG C and carries floating weight, stop in 15 seconds pressures
Bolt is pushed up, treats that sizing material temperature carries bolt dumping for 103 DEG C and obtains finished product.
Its physical property is shown in Table 1 to finished product after testing.
Table 1
A kind of above content, high-performance all-steel radial tyre shoulder wedge rubber composition of the present invention, passes through
Embodiment can reduce the heat of shoulder wedge with comparative example contrast discovery, improve stress at definite elongation, the tensile strength of shoulder wedge
With tearing strength and its heat endurance, illustrate the shoulder wedge rubber composition to pad glue be born heat and lifting stable mechanical property
Property has good effect.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (7)
1. a kind of all-steel radial tyre shoulder wedge composition, it is characterised in that including the following component counted in parts by weight：
2. all-steel radial tyre shoulder wedge composition as claimed in claim 1, it is characterised in that described filler is charcoal
The black and mixture of white carbon, the wherein dosage of carbon black are 10~35 parts, and the dosage of white carbon is 15~30 parts；Described coupling
Agent is double-[γ-(triethoxysilicane) propyl group] tetrasulfide, and dosage is the 10%~12% of white carbon parts by weight；Described is anti-
Type crosslinking agent is answered as double (N, N '-sulphur of bisbenzothiazole the carbamyl two)-hexanes of 1,6-.
3. all-steel radial tyre shoulder wedge composition as claimed in claim 1 or 2, it is characterised in that the vulcanizing agent
For insoluble sulfur and the mixture of accelerator, the parts by weight sum of the vulcanizing agent and response type crosslinking agent is 2~6.5
Part.
4. all-steel radial tyre shoulder wedge composition as claimed in claim 1, it is characterised in that the accelerator is N-
The tert-butyl group -2-[4-morpholinodithio sulfenamide, the age resistor are selected from N- (1,3- dimethylbutyl)-N '-diphenyl-para-phenylene diamine, 2,
One or both of 2,4- trimethyl -1,2- dihyaroquinoline condensates, the antiscorching agent are N- cyclohexyl thio neighbours benzene two
Carboximide, the activating agent are the mixture of stearic acid and zinc oxide.
A kind of 5. preparation method of all-steel radial tyre shoulder wedge composition as claimed in claim 1, it is characterised in that
Including：
The preparation process of one section of masterbatch；
The step of refining eventually.
6. the preparation method of all-steel radial tyre shoulder wedge composition as claimed in claim 5, it is characterised in that described
The preparation process of one section of masterbatch includes following operation：
Start banbury, the rotor speed for setting banbury is 45~55rpm, and mixing pressure is 10~15MPa, cooling water temperature
30~40 DEG C, temperature of rotor is 30~40 DEG C, adds natural rubber, carbon black, white carbon and coupling agent Si-69, is kneaded 30~50
Second floating weight is carried, then toward zinc oxide, stearic acid, age resistor is added in kneading chamber, be kneaded and be 130~148 DEG C to temperature and put on
Push up bolt, reduce rotating speed to 25~40rpm, stop 10~15 seconds pressure floating weights, it is 145~160 DEG C of dumpings to be kneaded to temperature, is obtained
One section of masterbatch.
7. the preparation method of all-steel radial tyre shoulder wedge composition as claimed in claim 5, it is characterised in that described
The step of refining includes following operation eventually：
After one section of masterbatch is stood into 6~8h in atmosphere, start banbury, set the rotor speed of banbury for 20~
30rpm, mixing pressure are 10~15MPa, 30~40 DEG C of cooling water temperature, and temperature of rotor is 30~45 DEG C, by one section of masterbatch,
Sulphur, accelerator, response type crosslinking agent put into kneading chamber together with antiscorching agent, carry within 45~60 seconds floating weight, stop 10~15 seconds
Bolt is pressed, is kneaded to temperature when being 80~85 DEG C and carries floating weight, stop 10~15 seconds pressure floating weights, it is 90~103 to treat sizing material temperature
DEG C bolt dumping is carried, bottom sheet is cooled to room temperature, obtains the all-steel radial tyre shoulder wedge composition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710876459.1A CN107759843A (en) | 2017-09-25 | 2017-09-25 | All-steel radial tyre shoulder wedge composition and preparation method thereof |
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| CN201710876459.1A CN107759843A (en) | 2017-09-25 | 2017-09-25 | All-steel radial tyre shoulder wedge composition and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108559140A (en) * | 2018-05-03 | 2018-09-21 | 江苏通用科技股份有限公司 | A kind of tire belt steel wire sizing material and preparation method thereof |
| CN109233035A (en) * | 2018-08-22 | 2019-01-18 | 江苏麒祥高新材料有限公司 | A kind of rubber anti-recovery agent and its new synthetic method that partial size is 40-100 μm |
| CN110117385A (en) * | 2019-05-08 | 2019-08-13 | 江苏通用科技股份有限公司 | All-steel load-bearing radial tire belt compound and preparation method thereof |
| CN111363209A (en) * | 2020-03-03 | 2020-07-03 | 中策橡胶集团有限公司 | Formula and application of tire rubber containing multifunctional vulcanizing agent |
| CN111607134A (en) * | 2020-06-01 | 2020-09-01 | 中策橡胶集团有限公司 | All-steel radial tire bead filler rubber composition with low heat generation and high stretching stability, preparation method thereof and tire |
| CN111777804A (en) * | 2020-06-01 | 2020-10-16 | 中策橡胶集团有限公司 | High-performance all-steel radial tire tread rubber composition, mixing method thereof and tire |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108559140A (en) * | 2018-05-03 | 2018-09-21 | 江苏通用科技股份有限公司 | A kind of tire belt steel wire sizing material and preparation method thereof |
| CN109233035A (en) * | 2018-08-22 | 2019-01-18 | 江苏麒祥高新材料有限公司 | A kind of rubber anti-recovery agent and its new synthetic method that partial size is 40-100 μm |
| CN110117385A (en) * | 2019-05-08 | 2019-08-13 | 江苏通用科技股份有限公司 | All-steel load-bearing radial tire belt compound and preparation method thereof |
| CN111363209A (en) * | 2020-03-03 | 2020-07-03 | 中策橡胶集团有限公司 | Formula and application of tire rubber containing multifunctional vulcanizing agent |
| CN111607134A (en) * | 2020-06-01 | 2020-09-01 | 中策橡胶集团有限公司 | All-steel radial tire bead filler rubber composition with low heat generation and high stretching stability, preparation method thereof and tire |
| CN111777804A (en) * | 2020-06-01 | 2020-10-16 | 中策橡胶集团有限公司 | High-performance all-steel radial tire tread rubber composition, mixing method thereof and tire |
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Application publication date: 20180306 |