CN113512239B - Rubber composition for tire sidewall and preparation method thereof - Google Patents
Rubber composition for tire sidewall and preparation method thereof Download PDFInfo
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- CN113512239B CN113512239B CN202110486386.1A CN202110486386A CN113512239B CN 113512239 B CN113512239 B CN 113512239B CN 202110486386 A CN202110486386 A CN 202110486386A CN 113512239 B CN113512239 B CN 113512239B
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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
- B60C1/0025—Compositions of the sidewalls
-
- 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
- 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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- 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 technical field of rubber, and particularly relates to a rubber composition for a tire sidewall and a preparation method thereof. The rubber composition provided by the invention comprises the following raw materials in parts by weight: 20-70 parts of rare earth isoprene rubber; 30-70 parts of butadiene rubber; 0-50 parts of natural rubber; 20-70 parts of carbon black; 2-5 parts of zinc oxide; 1-3 parts of stearic acid; 1-3 parts of protective wax; 2-6 parts of an anti-aging agent; 5-10 parts of rubber operating oil; 2-5 parts of tackifying resin; 0.5-2 parts of promoter; 1-3 parts of sulfur; the cis structure content of isoprene rubber in the rare earth isoprene rubber is more than or equal to 96wt%. According to the invention, the raw material formula of the rubber composition is optimally designed, so that the elasticity of the rubber composition can be obviously improved, and the heat generation and rolling resistance can be reduced.
Description
Technical Field
The invention belongs to the technical field of rubber, and particularly relates to a rubber composition for a tire sidewall and a preparation method thereof.
Background
Tires are ground-engaging rolling, annular elastomeric rubber articles assembled on various vehicles, aircraft or machinery. The automobile body or the automobile body can be supported by the automobile body or the automobile body through being generally arranged on a metal rim, external impact is buffered, contact with a road surface is achieved, and running performance is guaranteed. In the case of vehicles, tires have a direct and important impact on vehicle handling performance, driving safety, fuel consumption, ride comfort, etc. In the case of aircraft, the tires play an important role in safety assurance, and the advantages and disadvantages of the tires directly relate to the safety of the take-off and landing stage.
During running, the tyre side is mainly pressed and heated and bears great mechanical deformation, so that the tyre side rubber has low rolling resistance, low heat generation and high elasticity. Therefore, it is necessary to develop a rubber composition for a tire sidewall having low heat generation, low rolling resistance and high elasticity.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a rubber composition for a tire sidewall and a method for producing the same. The rubber composition provided by the invention has low heat generation, low rolling resistance and high elasticity, and is very suitable for being used as sidewall rubber.
The invention provides a rubber composition for a tire sidewall, which comprises the following raw materials in parts by weight:
the cis structure content of isoprene rubber in the rare earth isoprene rubber is more than or equal to 96wt%.
Preferably, the rare earth isoprene rubber has a number average molecular weight of 40-120 ten thousand, a relative molecular weight distribution lower than an index lower than 3, and a Mooney viscosity ML (1+4) at 100deg.C of 70-90.
Preferably, the brand of butadiene rubber comprises one or more of BR9000, BR1280, CB22, CB24, BR40 and BR 60.
Preferably, the carbon black comprises one or more of N330, N539, and N650.
Preferably, the protective wax is microcrystalline wax.
Preferably, the anti-aging agent includes one or more of an anti-aging agent 4020, an anti-aging agent RD, an anti-aging agent AW, an anti-aging agent 4010NA, an anti-aging agent 3100, an anti-aging agent 2246S, and an anti-aging agent DAH.
Preferably, the tackifying resin comprises an octyl phenol tackifying resin and/or a tert-butyl phenol tackifying resin.
Preferably, the accelerator comprises one or more of accelerator NS, accelerator DZ, accelerator CZ, accelerator NS, accelerator M, accelerator DS, accelerator MZ, accelerator TMTM, accelerator TMTD, accelerator ZDC, accelerator BZ, accelerator DPG, accelerator DOTG and accelerator H.
The invention provides a preparation method of the rubber composition for the tire sidewall, which comprises the following steps:
mixing rare earth isoprene rubber, butadiene rubber, natural rubber, carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent, rubber operating oil, tackifying resin, an accelerator and sulfur to obtain the rubber composition for the tire sidewall.
Preferably, the specific process of mixing comprises the following steps:
firstly mixing rare earth isoprene rubber, butadiene rubber and natural rubber, then mixing the mixture with carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent and tackifying resin, then mixing the mixture with rubber operating oil, and finally mixing the mixture with an accelerator and sulfur to obtain the rubber composition for the tire sidewall.
Compared with the prior art, the invention provides a rubber composition for a tire sidewall and a preparation method thereof. The rubber composition provided by the invention comprises the following raw materials in parts by weight: 20-70 parts of rare earth isoprene rubber; 30-70 parts of butadiene rubber; 0-50 parts of natural rubber; 20-70 parts of carbon black; 2-5 parts of zinc oxide; 1-3 parts of stearic acid; 1-3 parts of protective wax; 2-6 parts of an anti-aging agent; 5-10 parts of rubber operating oil; 2-5 parts of tackifying resin; 0.5-2 parts of promoter; 1-3 parts of sulfur; the cis structure content of isoprene rubber in the rare earth isoprene rubber is more than or equal to 96wt%. According to the invention, the raw material formula of the rubber composition is optimally designed, so that the elasticity of the rubber composition can be obviously improved, and the heat generation and rolling resistance can be reduced. The experimental results show that: compared with the rubber composition without the high cis-form rare earth isoprene rubber, the rubber composition provided by the invention has the advantages that the loss factor tan delta (60 ℃) and the flexural temperature rise are obviously reduced, the rebound resilience is obviously improved, and 40 ten thousand flex cracks have no cracks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a rubber composition for a tire sidewall, which comprises the following raw materials in parts by weight:
in the rubber composition provided by the invention, the rare earth isoprene rubber is isoprene rubber synthesized by taking homogeneous phase rare earth as a catalyst; the cis structure content of isoprene rubber in the rare earth isoprene rubber is more than or equal to 96wt%; the number average molecular weight of the rare earth isoprene rubber is preferably 40-120 ten thousand, and can be 40 ten thousand, 50 ten thousand, 60 ten thousand, 70 ten thousand, 80 ten thousand, 90 ten thousand, 100 ten thousand, 110 ten thousand or 120 ten thousand; the relative molecular weight distribution index of the rare earth isoprene rubber is preferably lower than 3; the Mooney viscosity ML (1+4) of the rare earth isoprene rubber is preferably 70-90, and can be 70, 75, 80, 85 or 90. In one embodiment of the present invention, the rare earth isoprene rubber is identified as SCNdIR, and the rare earth isoprene rubber is available from Shandong Shenshi petrochemical Co. In the present invention, the content of the rare earth isoprene rubber in the raw material of the rubber composition may specifically be 20 parts by weight, 25 parts by weight, 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight, 50 parts by weight, 55 parts by weight, 60 parts by weight, 65 parts by weight or 70 parts by weight.
In the rubber composition provided by the invention, the butadiene rubber is polybutadiene rubber with cis content of more than 97 wt%; the brand of butadiene rubber preferably includes one or more of BR9000, BR1280, CB22, CB24, BR40 and BR 60. In the present invention, the butadiene rubber may be contained in the raw material of the rubber composition in an amount of specifically 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight, 50 parts by weight, 55 parts by weight, 60 parts by weight, 65 parts by weight or 70 parts by weight.
In the rubber composition provided by the invention, the brand of the natural rubber is preferably SIR20; the content of the natural rubber in the rubber composition raw material may specifically be 0, 5, 10, 15, 20, 25, 30, 35, 40, 45 or 50 parts by weight.
In the rubber composition provided by the present invention, the type of the carbon black preferably includes one or more of N330, N539 and N650; wherein the iodine absorption value of the carbon black N330 is 76-96 g/kg, and the oil absorption value is 66 multiplied by 10 -5 ～120×10 -5 m 3 Per kg, compressed oil absorption value of 62X 10 -5 ～102×10 -5 m 3 Per kg, a coloration intensity of 103 to 121%, and a CTAB adsorption specific surface area of 74X 10 3 ～101×10 3 m 2 Per kg, external specific surface area of 72X 10 3 ～100×10 3 m 2 Per kg, total specific surface area of 72X 10 3 ～100×10 3 m 2 /kg; the iodine absorption value of the carbon black N539 is 38-48 g/kg, and the oil absorption value is 105 multiplied by 10 -5 ～117×10 -5 m 3 Per kg, a compressed oil absorption value of 76X 10 -5 ～86×10 -5 m 3 Per kg, CTAB adsorption specific surface area of 35X 10 3 ～47×10 3 m 2 Per kg, external specific surface area 33X 10 3 ～43×10 3 m 2 Per kg, total specific surface area 34X 10 3 ～44×10 3 m 2 /kg; the iodine absorption value of the carbon black N650 is 31-41 g/kg, and the oil absorption value is 105 multiplied by 10 -5 ～129×10 -5 m 3 Per kg, compressed oil absorption of 79X 10 -5 ～89×10 -5 m 3 Per kg, CTAB adsorption specific surface area of 32X 10 3 ～44×10 3 m 2 Per kg, external specific surface area of 30X 10 3 ～40×10 3 m 2 Per kg, total specific surface area of 31X 10 3 ～41×10 3 m 2 /kg. In the present invention, the carbon black may be contained in the rubber composition raw material in an amount of specifically 20 parts by weight, 25 parts by weight, 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight, 50 parts by weight, 55 parts by weight, 60 parts by weight, 65 parts by weight or 70 parts by weight.
In the rubber composition provided by the invention, the content of the zinc oxide in the raw material of the rubber composition can be specifically 2 parts by weight, 2.5 parts by weight, 3 parts by weight, 3.5 parts by weight, 4 parts by weight, 4.5 parts by weight or 5 parts by weight.
In the rubber composition provided by the invention, the content of the stearic acid in the raw material of the rubber composition can be specifically 1 part by weight, 1.5 parts by weight, 2 parts by weight, 2.5 parts by weight or 3 parts by weight.
In the rubber composition provided by the invention, the protective wax is preferably microcrystalline wax; the microcrystalline wax preferably comprises H3241 and/or H7075, which are available from Shandong Yanggu Huatai Co., ltd. In the present invention, the content of the protective wax in the raw material of the rubber composition may be specifically 1 part by weight, 1.5 parts by weight, 2 parts by weight, 2.5 parts by weight or 3 parts by weight.
In the rubber composition provided by the present invention, the antioxidant preferably includes one or more of an antioxidant 4020, an antioxidant RD, an antioxidant AW, an antioxidant 4010NA, an antioxidant 3100, an antioxidant 2246S, and an antioxidant DAH. In the present invention, the content of the antioxidant in the raw material of the rubber composition may specifically be 2 parts by weight, 2.5 parts by weight, 3 parts by weight, 3.5 parts by weight, 4 parts by weight, 4.5 parts by weight, 5 parts by weight, 5.5 parts by weight or 6 parts by weight.
In the rubber composition provided by the invention, the rubber processing oil is preferably of the brand Viavatec500, and the rubber processing oil of the brand is provided by Hansen chemical industry. In the present invention, the content of the rubber processing oil in the raw material of the rubber composition may specifically be 5 parts by weight, 5.5 parts by weight, 6 parts by weight, 6.5 parts by weight, 7 parts by weight, 7.5 parts by weight, 8 parts by weight, 8.5 parts by weight, 9 parts by weight, 9.5 parts by weight, or 10 parts by weight.
In the rubber composition provided by the invention, the tackifying resin preferably comprises octyl phenol formaldehyde tackifying resin and/or tert-butyl phenol formaldehyde tackifying resin; the octyl phenolic tackifying resin preferably comprises SP-1068 and/or SL-1801, wherein the octyl phenolic tackifying resin with the SP-1068 is provided by Santa Clay Co., ltd, and the octyl phenolic tackifying resin with the SL-1801 is provided by Hua Ji (China) chemical industry Co., ltd; the tertiary butyl phenol aldehyde tackifying resin is preferably a Koresin resin produced by basf, germany. In the present invention, the content of the tackifying resin in the rubber composition raw material may specifically be 2 parts by weight, 2.5 parts by weight, 3 parts by weight, 3.5 parts by weight, 4 parts by weight, 4.5 parts by weight, or 5 parts by weight.
In the rubber composition provided by the present invention, the accelerator preferably includes one or more of accelerator NS, accelerator DZ, accelerator CZ, accelerator NS, accelerator M, accelerator DS, accelerator MZ, accelerator TMTM, accelerator TMTD, accelerator ZDC, accelerator BZ, accelerator DPG, accelerator DOTG, and accelerator H. In the present invention, the content of the accelerator in the raw material of the rubber composition may be specifically 0.5 parts by weight, 1 part by weight, 1.5 parts by weight or 2 parts by weight.
In the rubber composition provided by the invention, the content of the sulfur in the raw material of the rubber composition can be specifically 1 part by weight, 1.2 parts by weight, 1.5 parts by weight, 1.7 parts by weight, 2 parts by weight, 2.3 parts by weight, 2.5 parts by weight, 2.7 parts by weight or 3 parts by weight.
The invention also provides a preparation method of the sidewall rubber composition, which comprises the following steps:
mixing rare earth isoprene rubber, butadiene rubber, natural rubber, carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent, rubber operating oil, tackifying resin, an accelerator and sulfur to obtain the rubber composition for the tire sidewall rubber.
In the preparation method provided by the invention, the specific process of mixing preferably comprises the following steps: firstly mixing rare earth isoprene rubber, butadiene rubber and natural rubber, then mixing the mixture with carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent and tackifying resin, then mixing the mixture with rubber operating oil, and finally mixing the mixture with an accelerator and sulfur to obtain the rubber composition for the tire sidewall rubber.
In the preparation method provided by the invention, the specific mixing process more preferably comprises the following steps: firstly, adding rare earth isoprene rubber, butadiene rubber and natural rubber into an internal mixer for mixing; then adding carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent and tackifying resin, mixing to a first set temperature, lifting a weight, cleaning an upper bolt, adding rubber operating oil, pressing the upper bolt, mixing to a second set temperature, and discharging rubber; then, passing the sheet through a roller in an open mill, and standing the sheet for a period of time; finally adding the accelerator and sulfur, carrying out thin pass for a plurality of times, and then cutting. Wherein the rotating speed of the internal mixer is preferably 50-100 rpm, and can be particularly 70rpm; the mixing time of the rare earth isoprene rubber and the butadiene rubber is preferably 10-60 s, and can be specifically 30s; the first set temperature is preferably 100-150 ℃, and can be 120 ℃; the second set temperature is preferably 150-180 ℃, and can be specifically 160 ℃; the roll gap of the open mill during roll passing is preferably 4-8 mm, and can be specifically 6mm; the number of times of passing the roller is preferably 2-6 times, and can be specifically 4 times; the parking time is preferably 4-24 hours; the roll gap of the open mill during the thin pass is preferably 0.1-0.5 mm, and can be specifically 0.2mm; the number of thin passes is preferably 4 to 8, and may be specifically 6.
According to the technical scheme provided by the invention, the raw material formula of the rubber composition is optimally designed, so that the elasticity of the rubber composition can be obviously improved, and the heat generation and rolling resistance can be reduced. The experimental results show that: compared with the rubber composition without the high cis-form rare earth isoprene rubber, the rubber composition provided by the invention has the advantages that the loss factor tan delta (60 ℃) and the flexural temperature rise are obviously reduced, the rebound resilience is obviously improved, and 40 ten thousand flex cracks have no cracks.
For clarity, the following examples are provided in detail.
1) And (3) component design:
TABLE 1 raw materials formulation table for rubber compositions (unit: parts by weight)
| Raw materials | Comparative example | Example 1 | Example 2 | Example 3 |
| Natural rubber SIR20 | 50 | 25 | 0 | 0 |
| Rare earth isoprene rubber | 0 | 25 | 50 | 60 |
| Butadiene rubber BR9000 | 50 | 50 | 50 | 40 |
| Carbon black N330 | 20 | 0 | 0 | 0 |
| Carbon black N539 | 0 | 40 | 40 | 40 |
| Carbon black N650 | 35 | 0 | 0 | 0 |
| Zinc oxide | 3 | 3 | 3 | 3 |
| Stearic acid | 1 | 1 | 1 | 1 |
| Protective wax H3241 | 2 | 2 | 2 | 2 |
| Anti-aging agent 4020 | 4 | 4 | 4 | 4 |
| Operating oil (Hansheng Viavatec 500) | 5 | 5 | 5 | 5 |
| Tackifying resin (Koresin) | 2 | 2 | 2 | 2 |
| Accelerator NS | 1.0 | 1.0 | 1.0 | 1.0 |
| Sulfur, sulfur and its preparation method | 1.7 | 1.7 | 1.7 | 1.7 |
In Table 1, the rare earth isoprene rubber is supplied by Shandong Shenshi petrochemical Co., ltd, and has the brand name SCNdIR; the rare earth isoprene rubber is synthesized by taking homogeneous rare earth as a catalyst, the cis content of the isoprene rubber is more than or equal to 96wt%, the number average molecular weight is 40-120 ten thousand, the relative molecular weight distribution is lower than an index of less than 3.0, and the Mooney viscosity of ML (1+4) at 100 ℃ is between 70 and 90.
2) The preparation of the rubber composition comprises the following specific steps:
mixing by using a small internal mixer, setting the rotating speed to be 70rpm, adding rubber into the internal mixer, mixing for 30 seconds, adding carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent and tackifying resin, mixing to 120 ℃, lifting a weight, cleaning an upper bolt, adding operating oil, pressing the upper bolt, and mixing to 160 ℃ for rubber discharge; and (3) passing the roll with the roll gap of 6mm for 4 times, standing the lower sheet for 4 to 24 hours, adding the accelerator and sulfur, passing the roll with the roll gap of 0.2mm for 6 times, and discharging the sheet to obtain the rubber composition product.
3) Performance test:
the prepared rubber composition products were subjected to dynamic performance test, and the results are shown in Table 2:
TABLE 2 dynamic mechanical Property results
As can be seen from Table 2, the flex cracking performance of the examples was not reduced, while the rebound resilience was improved, the heat generation was reduced, and tan. Delta (60 ℃ C.) was reduced, as compared with the comparative examples. Therefore, the invention obviously reduces the heat generation and rolling resistance of the rubber composition and improves the elasticity by using the high cis-form rare earth isoprene rubber and performing formula adjustment.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (3)
1. The rubber composition for the tire sidewall comprises the following raw materials in parts by weight:
the cis-structure content of isoprene rubber in the rare earth isoprene rubber is more than or equal to 96wt%, the number average molecular weight is 40-120 ten thousand, the relative molecular weight distribution index is lower than 3, and the Mooney viscosity ML (1+4) is 70-90 at 100 ℃;
the brand of butadiene rubber is BR9000;
the model of the carbon black is N539;
the protective wax is microcrystalline wax, and the brand of the microcrystalline wax is H3241;
the anti-aging agent is an anti-aging agent 4020;
the brand of the rubber operation oil is Viavatec500;
the tackifying resin is tert-butyl phenol aldehyde tackifying resin;
the accelerator is accelerator NS.
2. A process for preparing the rubber composition for a tire sidewall of claim 1, comprising the steps of:
mixing rare earth isoprene rubber, butadiene rubber, carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent, rubber operating oil, tackifying resin, an accelerator and sulfur to obtain the rubber composition for the tire sidewall.
3. The method according to claim 2, wherein the specific process of mixing comprises:
firstly mixing rare earth isoprene rubber and butadiene rubber, then mixing the mixture with carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent and tackifying resin, then mixing the mixture with rubber operating oil, and finally mixing the mixture with an accelerator and sulfur to obtain the rubber composition for the tire sidewall.
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| CN115322593A (en) * | 2022-07-04 | 2022-11-11 | 广州海印新材料研究发展有限公司 | Carbon black for rubber products and preparation method and application thereof |
| CN115678127B (en) * | 2022-11-07 | 2023-12-01 | 广东粤港澳大湾区黄埔材料研究院 | Sidewall rubber and preparation method and application thereof |
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| CN102532613A (en) * | 2010-12-29 | 2012-07-04 | 中国石油化工股份有限公司 | Rubber composition |
| CN103724710A (en) * | 2014-01-08 | 2014-04-16 | 上海轮胎橡胶（集团）股份有限公司轮胎研究所 | Rubber composition containing neodymium series cis-polybutadiene |
| CN105418998A (en) * | 2015-12-17 | 2016-03-23 | 山东永泰集团有限公司 | Sidewall rubber and preparation method thereof |
| CN107033405B (en) * | 2016-02-04 | 2019-01-18 | 中国石油化工股份有限公司 | Hose lining rubber composition and vulcanized rubber and its preparation method and application |
| CN107759849B (en) * | 2017-11-24 | 2020-08-25 | 四川凯力威科技股份有限公司 | Combined material, rubber material and tire |
| CN111995801A (en) * | 2020-07-15 | 2020-11-27 | 山东玲珑轮胎股份有限公司 | Supporting rubber composition |
| CN112250920B (en) * | 2020-10-30 | 2022-03-22 | 中国科学院长春应用化学研究所 | Sidewall supporting rubber taking synthetic rubber as base rubber and preparation method and application thereof |
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