CN104844850A - Aircraft tire sidewall rubber with good solar radiation resistance performance - Google Patents
Aircraft tire sidewall rubber with good solar radiation resistance performance Download PDFInfo
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- CN104844850A CN104844850A CN201510222445.9A CN201510222445A CN104844850A CN 104844850 A CN104844850 A CN 104844850A CN 201510222445 A CN201510222445 A CN 201510222445A CN 104844850 A CN104844850 A CN 104844850A
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses aircraft tire sidewall rubber with good solar radiation resistance performance. The formula of the sidewall rubber consists of the following raw materials in parts by weight: 50-80 parts of 1# or 3# ribbed smoked sheet, 50-120 parts of butadiene rubber, 1-3 parts of ultraviolet light absorber, 0.5-1 part of anti-reversion agent, 1-3 parts of thermal stabilizer, 1-3 parts of crack preventing agent, 1-3 parts of p-phenylenediamine antiager, 3-6 parts of zinc oxide, 1-4 parts of stearic acid, 1-4 parts of sulfur or insoluble sulfur, 1-3 parts of sulfenamide accelerator, 40-50 parts of new process high-structure high-wear-resistant N375 carbon black, 5-10 parts of precipitated white carbon and 4-10 parts of aromatic hydrocarbon oil. The sidewall rubber has superior flex crack resistance performance, anti-ozone performance, thermal oxidation resistance performance and atmospheric aging resistance performance; the sidewall rubber has superior solar radiation resistance performance when used under severe use conditions of altitude environments, high ultraviolet intensity and high temperature, so the service performance of an aircraft tire is good and the storage life is long.
Description
Technical field
The present invention relates to macromolecular material, relate to tire formulation, the aircraft tyre sidewall rubber that specifically a kind of resistance to solar radiation is good.
Background technology
Sidewall is the maximum position of tire lateral deformation, stands to subdue distortion frequently, and also directly and atmosphere, and aircraft tyre is long for storage period, requires that sidewall rubber has flex fatigue life and ozone-resistant, hot oxygen, the atmospheric aging performance of excellence on sidewall.When using under altitude environment, uitraviolet intensity is high, temperature is high harsh working conditions, also require that aircraft tyre sidewall rubber has excellent resistance to solar radiation, make the use properties of aircraft tyre good, storage life is long.
Existing aircraft tyre sidewall rubber, mainly comprise the compositions such as natural rubber, styrene-butadiene rubber(SBR), high structure high abrasion N339 carbon black, paraffin, protection wax RP-3, p phenylenediamine type antioxidant, sulphur, sulfenamide type accelerators DZ, also exist that resistance to solar radiation is poor, flex fatigue life and ozone-resistant, the dissatisfactory shortcoming of thermal-oxidative aging property, when aircraft tyre uses under altitude environment, need stand strong and long solar radiation, tire sidewall glue need tolerate the heat effect of solar radiation generation and the impact of Photochemical effects.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and the aircraft tyre sidewall rubber that a kind of resistance to solar radiation is good is provided, this sidewall rubber has excellent flex fatigue life and ozone-resistant, hot oxygen, atmospheric aging performance, when using under altitude environment, uitraviolet intensity is high, temperature is high harsh working conditions, there is excellent resistance to solar radiation, make the use properties of aircraft tyre good, storage life is long.
The technical scheme realizing the object of the invention is:
The aircraft tyre sidewall rubber that resistance to solar radiation is good, the formula of described sidewall rubber is made up of the raw material of following weight parts ratio:
The weight proportion of preferred each raw material is:
This sidewall rubber is by adopting natural rubber and cis-1,4-polybutadiene rubber and using, and add UV light absorber, anti-recovery agent, thermo-stabilizer, be full of cracks preventing agent, p phenylenediamine type antioxidant, sulfenamide type accelerators, novel process high structure high abrasion N375 carbon black, precipitated silica, and by outfit of reasonably filling a prescription, sidewall rubber is made to have good resistance to solar radiation, and there is excellent flex fatigue life, high tensile yield, higher tensile strength and tear strength and low temperature limit of brittleness, the aircraft tyre of this sidewall rubber of use uses under altitude environment condition and the high carrier strip part of high speed, the flex cracking resistance of tire sidewall, resistance to solar radiation is good, tire used performance is good, storage life is long.
Accompanying drawing explanation
Fig. 1 is the structural representation of aircraft tyre sidewall rubber present position in tire that in embodiment, resistance to solar radiation is good.
In figure, 1. tread rubber 2. strengthening course 3. casingply 4. air retaining wall 5. sidewall rubber 6. wheel rim.
Embodiment
Below by embodiment, content of the present invention is further elaborated, but is not limitation of the invention.
Embodiment:
The aircraft tyre sidewall rubber that resistance to solar radiation is good, as shown in Table 1, the formula of described sidewall rubber is made up of the raw material of following weight parts ratio:
Three formulas of table one sidewall rubber
| Starting material title | Formula 1 | Formula 2 | Formula 3 |
| 1 #Or 3 #Smoke sheet rubber | 60 | 70 | 80 |
| Cis-1,4-polybutadiene rubber BR9000 | 40 | 30 | 20 |
| UV light absorber UV-9 | 1 | 2 | 3 |
| Anti-recovery agent WK-901 | 0.5 | 0.6 | 0.7 |
| Thermo-stabilizer HS-80 | 1.5 | 2 | 2.5 |
| Be full of cracks preventing agent | 2 | 2 | 2 |
| P phenylenediamine type antioxidant | 2 | 2.5 | 3 |
| Zinc oxide | 5 | 5 | 5 |
| Stearic acid | 2 | 2.5 | 3 |
| Sulfur or insoluble sulfuy | 1.6 | 1.8 | 2.0 |
| Sulfenamide type accelerators | 1.6 | 1.4 | 1.2 |
| Novel process high structure high abrasion N375 carbon black | 45 | 43 | 40 |
| Precipitated silica | 6 | 8 | 10 |
| Aromatic hydrocarbon oil | 6 | 6 | 5 |
As shown in Figure 1, aircraft tyre is made up of tread rubber 1, strengthening course 2, casingply 3, air retaining wall 4, sidewall rubber 5 and wheel rim 6, and this formula is the formula of sidewall rubber 5.
Described sulfenamide type accelerators is NOBS or NS or CZ.
Mixer mixing is passed through by the proportioning raw materials of table one, produce rubber unvulcanizate, rubber unvulcanizate is made sidewall work in-process by the mode extruded with forcing machine, and sidewall work in-process are affixed on carcass sidepiece by forming machine, make green tyre, and by vulcanizer, the sulfuration of tire base is become tire finished product.
Be main material with natural rubber in this sizing material, also be furnished with cis-1,4-polybutadiene rubber, UV light absorber, anti-recovery agent, thermo-stabilizer, be full of cracks preventing agent, p phenylenediamine type antioxidant, sulfenamide type accelerators, novel process high structure high abrasion N375 carbon black, precipitated silica be major auxiliary burden, formulated according to a certain percentage.
In formula, natural rubber has and tears by force that performance is high, the feature of good combination property, the consumption of natural rubber more than 50 parts less than 80 parts, just can make that the tensile strength of sizing material reaches more than 19.0MPa, tear strength reaches more than 60kN/m and compression fatigue heat-dissipating below 50 DEG C; Cis-1,4-polybutadiene rubber has flexible resistance excellence, heat-dissipating is low, elasticity high and low temperature performance is good advantage, and with the cis-1,4-polybutadiene rubber of more than 20 parts less than 50 parts, the flex cracking resistance rank of sizing material can be reached be less than for 300,000 times 2 grades, sizing material has the low-temperature performance and low compression fatigue heat-dissipating that do not rupture at temperature-58 DEG C ~-55 DEG C; By adopting natural rubber and cis-1,4-polybutadiene rubber and use, sidewall rubber is made to have higher tensile strength and tear strength, good flex fatigue life, dynamic property, elasticity and low-temperature performance.What adopt in existing sidewall rubber formula is natural rubber and styrene-butadiene rubber(SBR) and use, and tensile strength and tear strength reach 19.0MPa and more than 60kN/m, but heat-dissipating and flex fatigue life difference.Solar radiation (mainly ultraviolet) is usually the principal element causing Photochemical effects and heat effect, when aircraft tyre uses under altitude environment, need stand strong and long solar radiation, tire sidewall glue need tolerate the heat effect of solar radiation generation and the impact of Photochemical effects.By adding UV light absorber, the solarization of UV-light to sizing material can be eliminated well, improving the resistance to solar radiation of sizing material, making sizing material reach 15.0MPa and more than 350% through solar radiation back draft intensity and tensile yield.Adding anti-recovery agent can make the property retention rate of natural rubber sizing material sizing material after long-time sulfuration and use procedure, solar radiation are heated improve, thus improves the resistance toheat of sidewall rubber.Adding thermo-stabilizer can make sizing material have good thermostability.Do not add UV light absorber, anti-recovery agent and thermo-stabilizer in existing sidewall rubber formula, through solar radiation back draft intensity and tensile yield lower.Add be full of cracks preventing agent sizing material can be made to have ozone-resistant is aging, anti-ultraviolet aging and atmospheric aging be full of cracks high-performance.That add in existing sidewall rubber formula is paraffin and protection wax RP-3, and through ozone ageing test, 20h just has crackle to occur, and sizing material of the present invention can reach 24h and do not go out crackle.Add p phenylenediamine type antioxidant, make sidewall rubber have excellent flex fatigue life and ozone-resistant aging property.Adopt sulfenamide type accelerators NOBS or NS or CZ with unique rear validity, not only make sidewall rubber physical and mechanical properties excellent, also have wider sulfuration flatness and goodish ageing-resistant performance, sizing material elongation change rate after 100 DEG C × 24h hot air aging is made to reach more than-25%, that adopt in existing sidewall rubber formula is sulfenamide type accelerators DZ, and heat-resistant air aging property is not ideal enough.To adopt new technology high structure high abrasion N375 carbon black, and use part white carbon black, for improving the anti tear of sidewall rubber, resistance to puncture and flex fatigue life.What adopt in existing sidewall rubber formula is high structure high abrasion N339 carbon black, processing performance not as N375 carbon black, structure higher than N375 carbon black, make the resistance to puncture of sizing material and flex fatigue life not ideal enough.
In addition, by the reasonable disposition of other component in formula, make this sidewall rubber have the feature performance benefit of good, the anti-atmospheric aging of resistance to solar radiation, have that the flex cracking resistance performance that aircraft tyre sidewall rubber should possess is good, tensile yield is high simultaneously, tensile strength and tear strength is higher, temperature limit of brittleness is low performance characteristics.This sidewall rubber is used for aircraft tyre, and when using under altitude environment condition and the high carrier strip part of high speed, flex cracking resistance, the resistance to solar radiation of tire sidewall are good, and tire used performance is good, storage life is long.
After tested, its performance range as shown in Table 2 for this properties of rubber.
Table two properties of rubber
Claims (3)
1. the aircraft tyre sidewall rubber that resistance to solar radiation is good, is characterized in that: the formula of described sidewall rubber is made up of the raw material of following weight parts ratio:
2. the aircraft tyre sidewall rubber that resistance to solar radiation according to claim 1 is good, is characterized in that: the formula of described sidewall rubber is made up of the raw material of following weight parts ratio:
3. the aircraft tyre sidewall rubber that resistance to solar radiation according to claim 1 is good, is characterized in that: the weight proportion of each raw material is:
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633221A (en) * | 2016-11-29 | 2017-05-10 | 芜湖集拓橡胶技术有限公司 | Super-wear-resistant high-load engineering solid tire natural rubber |
| CN107903455A (en) * | 2017-11-08 | 2018-04-13 | 广西融辰建设工程有限公司 | A kind of radiation resistant rubber and preparation method thereof |
| CN108482025A (en) * | 2018-05-03 | 2018-09-04 | 河南省高迈科技有限公司 | Tire pressure monitoring system with four-wheel automatic positioning function and its localization method |
| CN113201173A (en) * | 2021-04-30 | 2021-08-03 | 中国科学院长春应用化学研究所 | Rubber composition for bead apex and preparation method thereof |
| CN113897158A (en) * | 2021-11-19 | 2022-01-07 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Aircraft tire inner liner coating adhesive and preparation method and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633221A (en) * | 2016-11-29 | 2017-05-10 | 芜湖集拓橡胶技术有限公司 | Super-wear-resistant high-load engineering solid tire natural rubber |
| CN107903455A (en) * | 2017-11-08 | 2018-04-13 | 广西融辰建设工程有限公司 | A kind of radiation resistant rubber and preparation method thereof |
| CN108482025A (en) * | 2018-05-03 | 2018-09-04 | 河南省高迈科技有限公司 | Tire pressure monitoring system with four-wheel automatic positioning function and its localization method |
| CN113201173A (en) * | 2021-04-30 | 2021-08-03 | 中国科学院长春应用化学研究所 | Rubber composition for bead apex and preparation method thereof |
| CN113897158A (en) * | 2021-11-19 | 2022-01-07 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Aircraft tire inner liner coating adhesive and preparation method and application thereof |
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