CN113512239A - Rubber composition for tire side wall and preparation method thereof - Google Patents
Rubber composition for tire side wall and preparation method thereof Download PDFInfo
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- CN113512239A CN113512239A CN202110486386.1A CN202110486386A CN113512239A CN 113512239 A CN113512239 A CN 113512239A CN 202110486386 A CN202110486386 A CN 202110486386A CN 113512239 A CN113512239 A CN 113512239A
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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
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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
- 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
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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 an accelerator; 1-3 parts of sulfur; the cis-structure content of the isoprene rubber in the rare earth isoprene rubber is more than or equal to 96 wt%. According to the invention, through optimally designing the raw material formula of the rubber composition, the elasticity of the rubber composition can be obviously improved, and the heat generation and rolling resistance are 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-rolling annular elastic rubber articles fitted on various vehicles, airplanes, or machines. Generally, the wheel is mounted on a metal rim, and can support a vehicle body or a machine body, buffer external impact, realize contact with a road surface and ensure driving performance. In the case of vehicles, tires have a direct and important influence on vehicle handling performance, driving safety, fuel consumption, ride comfort, and the like. In the case of aircraft, tires play an important safety role, and the performance of the tires is directly related to the safety of the takeoff and landing stage.
During running of the tire, the side wall is a part which is mainly pressed and heated and bears large mechanical deformation, so that the side wall rubber has low rolling resistance and heat generation and high elasticity. Therefore, it is necessary to develop a rubber composition for a tire side wall having low heat generation, low rolling resistance and high elasticity.
Disclosure of Invention
In view of the above, the present invention aims to provide a rubber composition for a tire sidewall and a preparation method thereof. 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 a sidewall rubber.
The invention provides a rubber composition for tire sidewalls, which comprises the following raw materials in parts by weight:
the cis-structure content of the isoprene rubber in the rare earth isoprene rubber is more than or equal to 96 wt%.
Preferably, the number average molecular weight of the rare earth isoprene rubber is 40-120 ten thousand, the relative molecular weight distribution is lower than an index of less than 3, and the Mooney viscosity ML (1+4) is 70-90 at 100 ℃.
Preferably, the grade of the butadiene rubber comprises one or more of BR9000, BR1280, CB22, CB24, BR40 and BR 60.
Preferably, the carbon black type includes one or more of N330, N539 and N650.
Preferably, the protective wax is a microcrystalline wax.
Preferably, the anti-aging agent comprises one or more of anti-aging agent 4020, anti-aging agent RD, anti-aging agent AW, anti-aging agent 4010NA, anti-aging agent 3100, anti-aging agent 2246S and anti-aging agent DAH.
Preferably, the tackifying resin comprises an octyl phenolic tackifying resin and/or a tert-butyl phenolic tackifying resin.
Preferably, the promoter comprises one or more of promoter NS, promoter DZ, promoter CZ, promoter NS, promoter M, promoter DS, promoter MZ, promoter TMTM, promoter TMTD, promoter ZDC, promoter BZ, promoter DPG, promoter DOTG and promoter H.
The invention provides a preparation method of the rubber composition for the tire side wall, 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 process oil, tackifying resin, an accelerator and sulfur to obtain the rubber composition for the tire side wall.
Preferably, the mixing comprises the following specific processes:
firstly mixing rare earth isoprene rubber, butadiene rubber and natural rubber, then mixing with carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent and tackifying resin, then mixing with rubber process oil, and finally mixing with an accelerator and sulfur to obtain the rubber composition for the tire side wall.
Compared with the prior art, the invention provides a rubber composition for tire side rubber 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 an accelerator; 1-3 parts of sulfur; the cis-structure content of the isoprene rubber in the rare earth isoprene rubber is more than or equal to 96 wt%. According to the invention, through optimally designing the raw material formula of the rubber composition, the elasticity of the rubber composition can be obviously improved, and the heat generation and rolling resistance are reduced. The experimental results show that: compared with the rubber composition not doped with the high cis-rare earth isoprene rubber, the rubber composition provided by the invention has the advantages that the loss factor tan delta (60 ℃) and the deflection temperature rise are obviously reduced, the rebound resilience is obviously improved, and 40 ten thousand deflection cracks are not cracked.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a rubber composition for tire sidewall rubber, 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 rare earth as a catalyst; the cis-structure content of isoprene rubber in the rare earth isoprene rubber is more than or equal to 96 wt%; the number average molecular weight of the rare earth isoprene rubber is preferably 40-120 ten thousand, and specifically can be 40, 50, 60, 70, 80, 90, 100, 110 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 at 100 ℃, and specifically can be 70, 75, 80, 85 or 90. In one embodiment of the present invention, the grade of the rare earth isoprene rubber is SCNdIR, and the grade of the rare earth isoprene rubber is provided by santos petrochemical company limited. 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 cis-butadiene rubber is polybutadiene rubber with a cis content of more than 97 wt%; the grade of the butadiene rubber preferably comprises one or more of BR9000, BR1280, CB22, CB24, BR40 and BR 60. In the present invention, the content of the butadiene rubber in the raw material of the rubber composition may be 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 natural rubber preferably has a SIR 20; the content of the natural rubber in the raw material for the rubber composition may be specifically 0, 5 parts by weight, 10 parts by weight, 15 parts by weight, 20 parts by weight, 25 parts by weight, 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight or 50 parts by weight.
In the rubber composition provided by the present invention, the carbon black is preferably in a type including one or more of N330, N539 and N650; wherein the carbon black N330 has an iodine absorption value of 76-96 g/kg and an oil absorption value of 66 x 10-5～120×10-5m3Kg, compressed oil absorption number 62X 10-5～102×10-5m3Per kg, coloring strength of 103-121%, CTAB adsorption specific surface area of 74 x 103～101×103m2Per kg, external specific surface area 72X 103～100×103m2Per kg, total specific surface area 72X 103～100×103m2Per kg; the carbon black N539 has an iodine absorption value of 38-48 g/kg and an oil absorption value of 105 x 10-5～117×10-5m3Per kg, compressed oil absorption number 76X 10-5～86×10-5m3Per kg, CTAB adsorption specific surface area 35X 103～47×103m2Per kg, external specific surface area 33X 103～43×103m2Per kg, total specific surface area 34X 103～44×103m2Per kg; the carbon black has an iodine absorption value of 31 to 41g/kg and an oil absorption value of 105 x 10-5～129×10-5m3Kg, compressed oil absorption value of 79X 10-5～89×10-5m3Per kg, CTAB adsorption specific surface area 32X 103～44×103m2Per kg, external specific surface area 30X 103～40×103m2Per kg, total specific surface area 31X 103～41×103m2In terms of/kg. In the present invention, the content of the carbon black in the raw material for 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 content of the zinc oxide in the raw material of the rubber composition may 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 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 is preferably of a grade comprising H3241 and/or H7075, which are supplied by Shandong Yang Gu Huatai Co., Ltd. In the present invention, the content of the protective wax in the raw material for 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 invention, the antioxidant preferably comprises one or more of antioxidant 4020, antioxidant RD, antioxidant AW, antioxidant 4010NA, antioxidant 3100, antioxidant 2246S and antioxidant DAH. In the present invention, the content of the antioxidant in the raw material for the rubber composition may 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, 5 parts by weight, 5.5 parts by weight, or 6 parts by weight.
In the rubber composition provided by the invention, the grade of the rubber processing oil is preferably Viavatec500, and the rubber processing oil with the grade is provided by Hansan chemical industry. In the present invention, the content of the rubber process oil in the raw material for 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 phenolic tackifying resin and/or tert-butyl phenolic tackifying resin; the octyl phenolic tackifying resin is preferably provided with a brand number of SP-1068 and/or SL-1801, wherein the octyl phenolic tackifying resin with the brand number of SP-1068 is provided by Santa Lai Kett company in America, and the octyl phenolic tackifying resin with the brand number of SL-1801 is provided by Huaqi (China) chemical industry Co., Ltd.; the tert-butyl phenolic tackifying resin is preferably Koresin produced by Pasteur Germany. In the present invention, the content of the tackifier resin in the raw material of the rubber composition may 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 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 for the rubber composition may be specifically 0.5 part 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 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 processing oil, tackifying resin, an accelerator and sulfur to obtain the rubber composition for the tire side wall rubber.
In the preparation method provided by the invention, the specific process of mixing preferably comprises: firstly mixing rare earth isoprene rubber, butadiene rubber and natural rubber, then mixing with carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent and tackifying resin, then mixing with rubber process oil, and finally mixing 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 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 the weight, cleaning an upper top plug, adding rubber operating oil, pressing the upper top plug and mixing to a second set temperature, and discharging rubber; then, the mixture is rolled in an open mill and is placed for a period of time; finally, adding the accelerator and the sulfur, performing thin pass for several times, and slicing. The rotating speed of the internal mixer is preferably 50-100 rpm, and specifically can be 70 rpm; the mixing time of the rare earth isoprene rubber and the butadiene rubber is preferably 10-60 s, and specifically can be 30 s; the first set temperature is preferably 100-150 ℃, and specifically can be 120 ℃; the second set temperature is preferably 150-180 ℃, and specifically can be 160 ℃; the roll spacing of the open mill during roll passing is preferably 4-8 mm, and particularly 6 mm; the number of roller passing is preferably 2-6, specifically 4; the parking time is preferably 4-24 hours; the roll spacing of the open mill during thin passing is preferably 0.1-0.5 mm, and specifically can be 0.2 mm; the number of the thin passes is preferably 4-8, and 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 are reduced. The experimental results show that: compared with the rubber composition not doped with the high cis-rare earth isoprene rubber, the rubber composition provided by the invention has the advantages that the loss factor tan delta (60 ℃) and the deflection temperature rise are obviously reduced, the rebound resilience is obviously improved, and 40 ten thousand deflection cracks are not cracked.
For the sake of clarity, the following examples are given in detail.
1) Designing components:
TABLE 1 formulation of rubber composition raw materials table (unit: parts by weight)
| Raw material | Comparative example | Example 1 | Example 2 | Example 3 |
| Natural rubber SIR20 | 50 | 25 | 0 | 0 |
| Rare earth isoprene rubber | 0 | 25 | 50 | 60 |
| Cis-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 Viavatec500) | 5 | 5 | 5 | 5 |
| Tackifying resin (Koresin) | 2 | 2 | 2 | 2 |
| Accelerator NS | 1.0 | 1.0 | 1.0 | 1.0 |
| Sulfur | 1.7 | 1.7 | 1.7 | 1.7 |
In table 1, the rare earth isoprene rubber is provided by Shandong Shenchi petrochemical Co., Ltd, and the brand number is SCNdIR; the rare earth isoprene rubber is synthesized by using homogeneous rare earth as a catalyst, the cis content of the isoprene rubber is more than or equal to 96 wt%, 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 70-90.
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 the temperature of 120 ℃, lifting a weight, cleaning a top plug, adding operating oil, pressing the top plug, mixing to 160 ℃, and discharging rubber; and (3) passing the roller for 4 times at the roller spacing of 6mm of the open mill, standing for 4 to 24 hours after the sheet is discharged, adding an accelerator and sulfur, thinly passing the sheet for 6 times at the roller spacing of 0.2mm of the open mill, and discharging the sheet to obtain the rubber composition product.
3) And (3) performance testing:
the prepared rubber composition product was subjected to the dynamic property test, and the results are shown in table 2:
TABLE 2 dynamic mechanical Properties results
As can be seen from Table 2, the flex cracking performance of the examples was not lowered, while the rebound resilience was improved, the heat generation was reduced, and the tan. delta. (60 ℃ C.) was lowered, as compared with the comparative examples. Therefore, the high cis-rare earth isoprene rubber is used and the formula is adjusted, so that the heat generation and rolling resistance of the rubber composition are obviously reduced, and the elasticity is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The rubber composition for the tire side wall comprises the following raw materials in parts by weight:
the cis-structure content of the isoprene rubber in the rare earth isoprene rubber is more than or equal to 96 wt%.
2. The rubber composition for a tire side wall according to claim 1, wherein the number average molecular weight of the rare earth isoprene rubber is 40 to 120 ten thousand, the relative molecular weight distribution is less than an index of less than 3, and the Mooney viscosity ML (1+4) is 70 to 90 at 100 ℃.
3. The rubber composition for a tire sidewall of claim 1, wherein the grade of the butadiene rubber comprises one or more of BR9000, BR1280, CB22, CB24, BR40, and BR 60.
4. The rubber composition for a tire sidewall as in claim 1, wherein the carbon black is of a type comprising one or more of N330, N539 and N650.
5. The tire sidewall rubber composition of claim 1, wherein the protective wax is a microcrystalline wax.
6. The rubber composition for a tire side wall according to claim 1, wherein said antioxidant comprises one or more of antioxidant 4020, antioxidant RD, antioxidant AW, antioxidant 4010NA, antioxidant 3100, antioxidant 2246S, and antioxidant DAH.
7. The rubber composition for a tire sidewall as in claim 1, wherein said tackifying resin comprises an octyl phenolic tackifying resin and/or a tert-butyl phenolic tackifying resin.
8. The rubber composition for a tire sidewall of claim 1, wherein 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.
9. A method for preparing the rubber composition for the tire side wall of any one of claims 1 to 8, comprising 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 process oil, tackifying resin, an accelerator and sulfur to obtain the rubber composition for the tire side wall.
10. The preparation method according to claim 9, wherein the specific process of mixing comprises:
firstly mixing rare earth isoprene rubber, butadiene rubber and natural rubber, then mixing with carbon black, zinc oxide, stearic acid, protective wax, an anti-aging agent and tackifying resin, then mixing with rubber process oil, and finally mixing with an accelerator and sulfur to obtain the rubber composition for the tire side wall.
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Cited By (2)
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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 |
| CN115678127A (en) * | 2022-11-07 | 2023-02-03 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115678127A (en) * | 2022-11-07 | 2023-02-03 | 广东粤港澳大湾区黄埔材料研究院 | Sidewall rubber 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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| CN113512239B (en) | 2023-05-05 |
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