CN110157055B - Sidewall rubber of aircraft tire - Google Patents
Sidewall rubber of aircraft tire Download PDFInfo
- Publication number
- CN110157055B CN110157055B CN201910541680.0A CN201910541680A CN110157055B CN 110157055 B CN110157055 B CN 110157055B CN 201910541680 A CN201910541680 A CN 201910541680A CN 110157055 B CN110157055 B CN 110157055B
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- parts
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- aircraft tire
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Classifications
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- 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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the field of aircraft tires, and particularly relates to an aircraft tire sidewall rubber which comprises the following components in parts by weight: 30-70 parts of natural rubber, 20-40 parts of Ethylene Propylene Diene Monomer (EPDM), 10-30 parts of butadiene rubber, 40-60 parts of modified N330 carbon black, 1-3 parts of paraffin oil, 1-3 parts of tackifying resin, 1-4 parts of homogenizing agent, 1-2 parts of crack preventing agent, 0.1-0.5 part of antiozonant H, 1-2 parts of p-phenylenediamine anti-aging agent, 3-8 parts of zinc oxide, 1-4 parts of stearic acid, 0.1-1 part of insoluble sulfur, 1-3 parts of vulcanizing agent DTDM, and 1-3 parts of sulfenamide accelerator DZ. The sidewall rubber of the aircraft tire can adapt to severe use conditions of high-temperature and low-temperature daily cycle thermal vacuum environment and radiation, and has more excellent performance performances of heat resistance, cold resistance, ozone resistance, radiation resistance, elongation at break and flex crack resistance compared with the prior art.
Description
Technical Field
The invention belongs to the field of aircraft tires, and particularly relates to an aircraft tire sidewall rubber.
Background
The sidewall part of the aircraft tire is the part with the largest lateral deformation when the aircraft tire is in use, such as sliding, taking off and landing, the colloid of the part needs to be subjected to frequent high-strength deflection deformation, the aircraft tire also needs to be subjected to severe use conditions of high-temperature and low-temperature daily cycle thermal vacuum environment and radiation for a long time, the vulcanized rubber can volatilize low-molecular substances in the polymer and volatilize compounding agents such as a softener and an anti-aging agent in vacuum, particularly in the thermal vacuum, the vulcanized rubber can possibly undergo chemical reaction due to the action of high-temperature and high-energy radiation and certain media, low-molecular volatile matters are generated, the vulcanized rubber can be sublimated under the condition of high-vacuum decompression, the sublimation and the weight loss further cause the change of the performance of the vulcanized rubber, such as the volatilization of the softener, and the vulcanized rubber can be gradually hardened, brittleness and low-temperature flexibility are deteriorated, resulting in a decrease in the elongation at break property of the carcass. Therefore, the sidewall rubber of the aircraft tire has the advantages of small weight loss rate, heat resistance, cold resistance, ozone resistance, radiation resistance and high elongation at break under the thermal vacuum environment.
Disclosure of Invention
The invention aims to provide an aircraft tire sidewall rubber with small weight loss rate, flex cracking resistance and good atmospheric aging resistance.
The technical scheme for realizing the aim of the invention is that,
the side rubber for the aircraft tire is characterized by comprising the following components in parts by weight:
30-70% of natural rubber
20-40 parts of ethylene propylene diene monomer
10-30 parts of butadiene rubber
40-60 of modified N330 carbon black
Paraffin oil 1-3
1-3 of tackifying resin
1-4 parts of homogenizing agent
1-2% of crack inhibitor
0.1-0.5% of antiozonant H
1-2 parts of p-phenylenediamine antioxidants
3-8% of zinc oxide
Stearic acid 1-4
0.1 to 1 part of insoluble sulfur
Vulcanizing agent DTDM 1-3
Sulfenamide accelerator DZ 1-3
Further, the method can be used for preparing a novel materialThe natural rubber is 1#Or 3#The smoke sheet rubber comprises BR9000 butadiene rubber, N330 carbon black modified N330 carbon black, tackifying resin 203 or 204 tackifying resin, a 40MSF homogenizing agent, a cracking preventing agent which is protective wax Okerin1900, an antiozonant H which is an anti-aging agent DPPD, and a p-phenylenediamine anti-aging agent which is anti-aging agent 4020.
Further, the aviation tire sidewall rubber comprises the following components in parts by weight:
no. 1 smoked sheet glue 50
Ethylene propylene diene monomer 30
Butadiene rubber BR 900020
Modified N330 carbon Black 60
Paraffin oil 2
Tackifying resin 2032
Homogenizing agent 40MSF 2
Protective wax Okerin 19002
Antioxidant DPPD 0.3
Anti-aging agent 40201.5
Zinc oxide 5
Stearic acid 2
Insoluble sulfur IS-901
Vulcanizing agent DTDM 2
Sulfenamide accelerator DZ 1
The natural rubber in the components of the sidewall rubber provided by the invention has the characteristics of high tearing performance and good comprehensive performance; the ethylene propylene diene monomer rubber has the characteristics of excellent heat resistance, ozone resistance, radiation resistance, weather resistance, low temperature and the like, and can enable the sidewall rubber to meet the harsh use conditions of high-temperature and low-temperature daily cycle thermal vacuum environment and radiation for a long time; the butadiene rubber has the advantages of excellent flexing resistance, low heat generation, high elasticity and good low-temperature performance; by adopting the natural rubber, the ethylene propylene diene monomer and the butadiene rubber, the sidewall rubber has higher tensile strength and elongation at break, excellent heat resistance, ozone resistance, better flex crack resistance, elasticity and low temperature performance. The modified N330 carbon black with the characteristics of small particle size, large specific surface area, low heat generation and high tearing strength compared with N330 carbon black with the same specification is adopted, and the rubber material has good flex crack resistance, tear resistance and puncture resistance. In order to ensure that the sidewall rubber has good heat resistance, ozone resistance and radiation resistance, a crack preventing agent and an antiozonant are added into a formula, but the compounding agents volatilize in a hot vacuum environment to cause weight loss of rubber, so that the anti-aging performance of the rubber is reduced, and too many generated volatile matters can influence metal instruments in a cabin, so that the use amount of the materials is proper, and the weight loss rate in the hot vacuum environment is small while the anti-aging performance of the rubber is ensured. The paraffin oil is added into the formula as a plasticizer, so that the rubber material has good processing performance, and the paraffin oil is the plasticizer with the lowest volatile content and the lowest weight loss, so that the rubber material has low weight loss rate and few volatile matters under thermal vacuum. The addition of the homogenizing agent 40MSF can ensure that the natural rubber, the ethylene propylene diene monomer rubber and the butadiene rubber are mixed more uniformly and sufficiently, is favorable for dispersing the carbon black in the rubber material and improves the surface viscosity of the semi-finished rubber material. Because the sulfur is volatile in the thermal vacuum environment, the vulcanizing agent DTDM and the aftereffect sulfenamide accelerator are used together, so that the sulfur consumption is reduced, the sidewall rubber has good heat resistance and aging resistance, long scorching time and good operation safety, and the reduction of volatile matters in the thermal vacuum environment is facilitated, so that the weight loss rate of the rubber is small. Through reasonable preparation of other components in the formula, the sidewall rubber has the advantages of small weight loss rate, heat resistance, ozone resistance and radiation resistance in a thermal vacuum environment, and has the characteristics of good flex crack resistance, high elongation at break, higher tensile strength and low brittle temperature of the sidewall rubber of the aircraft tire. When the sidewall rubber is used for an aviation tire, the sidewall rubber has small weight loss rate and excellent heat resistance, cold resistance and radiation resistance when used in a long-term hot vacuum environment, so that the aviation tire has safe service performance and long service life. The following table is a table of performance ranges obtained from testing of the aircraft tire sidewall compound of the present invention.
Detailed Description
The invention is described in detail below with reference to three examples of aircraft tire sidewall rubbers prepared in different formulations. The raw material ratios in the examples are shown in the following table. The modified N330 carbon blacks in the list are a modified N330 carbon black sold by Xinjiang Utility company, Inc.
The performance parameters obtained by testing the aircraft tire sidewall rubber obtained in the embodiment are compared with the aircraft tire sidewall rubber in the prior art, and the sidewall rubber in the embodiment has the advantages of smaller weight loss rate, better heat resistance and radiation resistance in a hot vacuum environment, good flex crack resistance, lower heat generation, higher elongation at break and tensile strength and low brittle temperature compared with the existing aircraft tire sidewall rubber. See table below.
Claims (3)
1. The side rubber for the aircraft tire is characterized by comprising the following components in parts by weight:
30-70% of natural rubber
20-40 parts of ethylene propylene diene monomer
10-30 parts of butadiene rubber
40-60 of modified N330 carbon black
Paraffin oil 1-3
1-3 of tackifying resin
1-4 parts of homogenizing agent
1-2% of crack inhibitor
0.1-0.5% of antiozonant H
1-2 parts of p-phenylenediamine antioxidants
3-8% of zinc oxide
Stearic acid 1-4
0.1 to 1 part of insoluble sulfur
Vulcanizing agent DTDM 1-3
1-3 sulfenamide accelerators DZ.
2. An aircraft tire sidewall rubber according to claim 1, wherein the natural rubber is 1#Or 3#The smoked sheet rubber comprises BR9000 butadiene rubber, 203 or 204 tackifying resin, 40MSF homogenizing agent, protective wax Okerin1900 as a crack preventing agent, antioxidant DPPD as an antioxidant and antioxidant 4020 as a p-phenylenediamine antioxidant.
3. The aircraft tire sidewall rubber as claimed in claim 1, wherein the sidewall rubber comprises the following components in parts by weight:
no. 1 smoked sheet glue 50
Ethylene propylene diene monomer 30
Butadiene rubber BR 900020
Modified N330 carbon Black 60
Paraffin oil 2
Tackifying resin 2032
Homogenizing agent 40MSF 2
Protective wax Okerin 19002
Antioxidant DPPD 0.3
Anti-aging agent 40201.5
Zinc oxide 5
Stearic acid 2
Insoluble sulfur IS-901
Vulcanizing agent DTDM 2
Sulfonamide accelerator DZ 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541680.0A CN110157055B (en) | 2019-06-21 | 2019-06-21 | Sidewall rubber of aircraft tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541680.0A CN110157055B (en) | 2019-06-21 | 2019-06-21 | Sidewall rubber of aircraft tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110157055A CN110157055A (en) | 2019-08-23 |
| CN110157055B true CN110157055B (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910541680.0A Active CN110157055B (en) | 2019-06-21 | 2019-06-21 | Sidewall rubber of aircraft tire |
Country Status (1)
| Country | Link |
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| CN (1) | CN110157055B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112266509B (en) * | 2020-10-30 | 2022-03-22 | 中国科学院长春应用化学研究所 | Sidewall rubber taking synthetic rubber as base rubber and preparation method and application thereof |
| CN112708214B (en) * | 2020-12-11 | 2023-07-07 | 厦门正新橡胶工业有限公司 | Anti-aging agent rubber patch, preparation method thereof and method for preparing tire by using anti-aging agent rubber patch |
| CN115991963B (en) * | 2023-01-18 | 2023-07-18 | 青岛华海环保工业有限公司 | Ozone-resistant rubber dam |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834834A (en) * | 1981-08-27 | 1983-03-01 | Yokohama Rubber Co Ltd:The | Rubber composition for white sidewall of tire |
| EP0803535A2 (en) * | 1996-04-22 | 1997-10-29 | Sumitomo Rubber Industries Limited | Rubber composition for tyre sidewall and tyre |
| EP1038696A1 (en) * | 1999-03-23 | 2000-09-27 | The Goodyear Tire & Rubber Company | Tire with epdm-based component |
| CN101117409A (en) * | 2007-07-14 | 2008-02-06 | 昊华南方(桂林)橡胶有限责任公司 | All-steel giant-scale engineering tyre side glue and all-steel giant-scale engineering tyre using the same |
| CN101418087A (en) * | 2008-11-24 | 2009-04-29 | 江苏通用科技股份有限公司 | Airtight rubber of all-steel radial tyre and preparation method thereof |
| CN105419000A (en) * | 2015-12-17 | 2016-03-23 | 山东永泰集团有限公司 | Ethylene-propylene-diene tire sidewall rubber |
| CN108239306A (en) * | 2017-12-11 | 2018-07-03 | 山东玲珑轮胎股份有限公司 | Tire sidewall rubber composite material and preparation method thereof |
-
2019
- 2019-06-21 CN CN201910541680.0A patent/CN110157055B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834834A (en) * | 1981-08-27 | 1983-03-01 | Yokohama Rubber Co Ltd:The | Rubber composition for white sidewall of tire |
| EP0803535A2 (en) * | 1996-04-22 | 1997-10-29 | Sumitomo Rubber Industries Limited | Rubber composition for tyre sidewall and tyre |
| EP1038696A1 (en) * | 1999-03-23 | 2000-09-27 | The Goodyear Tire & Rubber Company | Tire with epdm-based component |
| CN101117409A (en) * | 2007-07-14 | 2008-02-06 | 昊华南方(桂林)橡胶有限责任公司 | All-steel giant-scale engineering tyre side glue and all-steel giant-scale engineering tyre using the same |
| CN101418087A (en) * | 2008-11-24 | 2009-04-29 | 江苏通用科技股份有限公司 | Airtight rubber of all-steel radial tyre and preparation method thereof |
| CN105419000A (en) * | 2015-12-17 | 2016-03-23 | 山东永泰集团有限公司 | Ethylene-propylene-diene tire sidewall rubber |
| CN108239306A (en) * | 2017-12-11 | 2018-07-03 | 山东玲珑轮胎股份有限公司 | Tire sidewall rubber composite material and preparation method thereof |
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|---|---|
| CN110157055A (en) | 2019-08-23 |
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