A tread base rubber with good heat resistance and wear resistance, and a preparation method and application thereof

Abstract

The application provides a tread base rubber with good heat resistance and wear resistance and a preparation method and application thereof, and belongs to the technical field of high polymer materials. The tread base rubber provided by the application is prepared from N234 carbon black wet rubber as a main material, super vulcanizing agent, nano zinc oxide, tear-resistant resin, anti-aging agent, insoluble sulfur, anti-vulcanization reversion agent SL-9088 and silane coupling agent as main auxiliary materials and in a certain proportion. The tread base rubber provided by the application has the performance characteristics of low dynamic heat generation, good heat resistance, high tensile strength, tear strength and elongation at break, good wear resistance, high resilience, and high adhesion strength with the cord layer. The tread base rubber provided by the application is used for the tires of invisible aircraft, and is used under the conditions of high load and supersonic speed. Under the conditions of the largest stress, high temperature and difficult heat dissipation in the part, the problems of melting, separation and tire tread throwing are not prone to occur, and the reliability of the aircraft tire is good and the service life is long.

Description

Technical Field

[0001] This invention belongs to the field of polymer materials technology, specifically relating to a heat-resistant and wear-resistant tread base adhesive, its preparation method, and its application. Background Technology

[0002] With the improvement of aircraft technical specifications, aircraft tires are developing towards higher speed, higher load capacity, lighter weight, longer lifespan, impact resistance, puncture resistance, and safer use to meet the needs of aircraft technology development. Stealth aircraft, in particular, have high requirements for supersonic and stealth performance. Aircraft tires operate under harsh conditions of high load and supersonic speeds, requiring a reinforced tread structure with a skeleton material as reinforcement to meet speed requirements. The tread base rubber (also known as the undertread rubber) is located below the reinforcing ply layer and above the carcass layer. This part is a critical component of aircraft tires, experiencing the greatest stress, highest temperature, and most difficult heat dissipation during tire use, resulting in a more pronounced infrared signature. The standard for replacing aircraft tires is to wear down the tread to the third layer of carcass cords. Therefore, in addition to good heat resistance, the tread base rubber must also have low dynamic heat generation and good wear resistance to improve the stealth performance and service life of aircraft tires. The tensile stress and vulcanization speed of the tread base rubber should be matched with the tread rubber and carcass ply rubber to ensure a uniform stress transition during tire use, preventing stress concentration in this area and ensuring tire safety. High bonding strength with the ply layers makes the tire less prone to delamination or tread slippage under harsh conditions, thus preventing tire damage.

[0003] Currently, the base rubber of ordinary aircraft tire treads has the disadvantage of insufficient heat resistance, and quality problems such as rubber melting and separation are prone to occur at the base of the tread during use. Ordinary aircraft tire tread base rubber uses high wear-resistant N330 carbon black, which has a large amount of wear reduction, poor wear resistance, and short tire life. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a tread base compound with good heat resistance and wear resistance, its preparation method, and its application. The tread base compound provided by this invention has the characteristics of low dynamic heat generation, good heat resistance, high tensile strength, tear strength, and elongation at break; at the same time, it also has the characteristics of good wear resistance, high resilience, and high adhesion strength to the ply layer.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] This invention provides a tread base rubber with good heat resistance and wear resistance, comprising the following raw materials in parts by weight:

[0007]

[0008]

[0009] Preferably, the raw materials include the following parts by weight:

[0010]

[0011] Preferably, the N234 carbon black wet process adhesive includes N234 carbon black wet process adhesive HWF-50; the antioxidant includes p-phenylenediamine antioxidant and ketone amine antioxidant; the protective wax includes protective wax Okerin 1900 or RW590; and the tear-resistant resin includes tear-resistant resin RT102 or SL-6903.

[0012] Preferably, the silane coupling agent includes silane coupling agent Si69 or KH-845-4; the insoluble sulfur includes insoluble sulfur IS-60 or IS-90.

[0013] Preferably, the super vulcanizing agent includes super vulcanizing agent PSO-50; the sulfenamide accelerator includes sulfenamide accelerator NS or CZ.

[0014] Preferably, the p-phenylenediamine antioxidant includes p-phenylenediamine antioxidant 4020 and p-phenylenediamine antioxidant H; the ketamine antioxidant includes ketamine antioxidant S-TMQ or BLE.

[0015] This invention provides a method for preparing the heat-resistant and wear-resistant tread base rubber described above, comprising the following steps:

[0016] N234 carbon black wet process rubber, nano zinc oxide, stearic acid, antioxidant, protective wax, tear-resistant resin, silane coupling agent, insoluble sulfur, super vulcanizing agent, anti-reversion agent SL-9088 and sulfenamide accelerator are mixed and kneaded to obtain the tread base rubber with good heat resistance and wear resistance.

[0017] Preferably, the mixing process includes the following steps:

[0018] N234 carbon black wet process adhesive, nano zinc oxide, stearic acid, antioxidant, protective wax, tear-resistant resin, and silane coupling agent are mixed and compounded in one stage to obtain a first stage masterbatch.

[0019] Insoluble sulfur, super vulcanizing agent, anti-reversion agent SL-9088, sulfenamide accelerator and the first stage masterbatch are mixed and then mixed in a second stage to obtain the tread base rubber with good heat resistance and wear resistance.

[0020] This invention provides the application of the heat-resistant and wear-resistant tread base rubber described in the above-described scheme, or the heat-resistant and wear-resistant tread base rubber prepared by the preparation method described in the above-described scheme, in aircraft tires.

[0021] Preferably, the method of application includes the following steps:

[0022] The heat-resistant and wear-resistant tread base rubber is calendered to obtain a tread base rubber sheet;

[0023] The tread base film is attached to the reinforcing layer cord fabric to obtain the cord fabric tube;

[0024] The cord tube is combined with other components to obtain a tire blank;

[0025] The tire blank is vulcanized to obtain the finished aircraft tire;

[0026] The other components include tread rubber, reinforcing ply, tread base rubber, carcass ply, airtight layer, and bead wire.

[0027] This invention provides a heat-resistant and wear-resistant tread base rubber, comprising the following raw materials in parts by weight: 150 parts of N234 carbon black wet-process rubber; 3-5 parts of nano zinc oxide; 1.7-7.4 parts of antioxidant; 1-3 parts of tear-resistant resin; 1-2 parts of silane coupling agent; 1.8-2.25 parts of super vulcanizing agent; 0.5-2 parts of anti-reversion agent SL-9088; 1-3 parts of stearic acid; 1-3 parts of protective wax; 0.5 parts of insoluble sulfur; and 1.6-2.2 parts of sulfenamide accelerator. The N234 carbon black wet-process rubber in this invention exhibits excellent abrasion resistance and low dynamic heat generation, thereby improving the tensile strength and elongation at break of the tread base rubber. The super vulcanizing agent demonstrates excellent anti-reversion properties and significantly improves heat-resistant vulcanization performance, maintaining good dynamic flexural properties. This invention innovatively uses a super vulcanizing agent, giving the tread base rubber excellent heat resistance and thermal stability. The use of sulfenamide accelerators allows the tread base rubber to have a longer scorch time and a faster vulcanization rate, resulting in high-strength vulcanized rubber, a flat vulcanization curve, and good operational safety. The addition of the anti-reversion agent SL-9088 and a silane coupling agent gives the tread base rubber excellent thermal stability and dynamic balance. The addition of an antioxidant further enhances the tread base rubber's... The rubber exhibits good heat resistance and flexural crack resistance. The addition of nano-zinc oxide not only reduces the amount of zinc oxide needed but also improves the wear resistance of the tread base rubber, increases the vulcanization rate, and provides superior operational safety. The addition of tear-resistant resin significantly enhances the cut resistance of the tread base rubber without compromising wear resistance, while also providing high tear strength, good flexural crack resistance, and good adhesion. Furthermore, by combining it with stearic acid, protective wax, insoluble sulfur, and sulfenamide accelerators, the tread base rubber achieves advantages such as low dynamic heat generation, good heat resistance, high tensile strength, tear strength, and elongation at break, while also exhibiting good wear resistance, high resilience, and high adhesion strength to the ply layer.

[0028] The tread base rubber provided by this invention is used in stealth aircraft tires. Under high load and supersonic conditions, when the stress is greatest, the temperature is high, and heat dissipation is difficult in this area, it is less likely to melt, separate, or throw off the tread, thus preventing damage to the aircraft tire. The aircraft tire has good reliability and long service life. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the longitudinal structure of the tire of the present invention, wherein 1-tread rubber, 2-reinforcing ply, 3-tread base rubber, 4-carcass ply, 5-airtight layer, 6-steel wire ring, and 7-rim. Detailed Implementation

[0031] This invention provides a tread base rubber with good heat resistance and wear resistance, comprising the following raw materials in parts by weight:

[0032]

[0033] Unless otherwise specified, all raw materials used in this invention are commercially available. In a specific embodiment of this invention, the super vulcanizing agent PSO-50 is produced by Jiangsu Qixiang High-Tech Materials Co., Ltd., located at No. 19, Liwan Road, Yanhua New Materials Industrial Park, Huai'an, Jiangsu Province; the N234 carbon black wet-process rubber HWF-50 is produced by Jiyuan Hongxin Rubber Composite Materials Technology Co., Ltd., located at No. 6, Guanghui Street, Wulongkou Town, Jiyuan City, Henan Province, in the Nanomaterials Industrial Park. The use of N234 carbon black wet-process rubber for the base rubber of aircraft tire treads is a first of its kind.

[0034] The raw materials for preparing the heat-resistant and wear-resistant tread base rubber provided by this invention, by weight, include 150 parts of N234 carbon black wet-process rubber. In this invention, the N234 carbon black wet-process rubber preferably includes N234 carbon black wet-process rubber HWF-50. In this invention, N234 carbon black wet-process rubber HWF-50 is prepared by high-speed collision mixing of 100 parts of natural rubber latex and 50 parts of N234 carbon black slurry, achieving instantaneous solidification of the carbon black slurry and latex. Compared with traditional dry mixing (dry mixing refers to the mechanical mixing method to disperse fine carbon black particles with a large specific surface area in high-viscosity, high-elasticity solid natural rubber), N234 carbon black wet-process rubber HWF-50 has higher tensile strength, longer elongation at break, and lower rolling resistance. A comparison of the properties of N234 carbon black wet-process rubber HWF-50 and traditional N234 carbon black dry-process rubber is shown in Table 1.

[0035] Table 1. Performance Comparison of N234 Carbon Black Wet Process Adhesive and N234 Carbon Black Dry Process Adhesive

[0036] Tensile strength MPa 29.4 30.3 Elongation at break % 423 481 Rebound rate at room temperature (25℃) % 55.5 58.0 High temperature (60℃) rebound rate % 69.0 70.8

[0037] In this invention, the N234 carbon black wet process rubber has excellent wear resistance and low dynamic heat generation, which can improve the tensile strength and elongation at break of the tread base rubber.

[0038] Based on the weight percentage of the N234 carbon black wet-process rubber, the raw materials for preparing the heat-resistant and wear-resistant tread base rubber provided by this invention include 3 to 5 parts of nano-zinc oxide, preferably 2.8 to 4.5 parts. In the embodiments of this invention, specifically 3, 4, or 5 parts. In this invention, the addition of nano-zinc oxide not only reduces the amount of zinc oxide used but also improves the wear resistance of the tread base rubber, increases the vulcanization rate, and provides superior operational safety.

[0039] Based on the weight parts of the N234 carbon black wet-process rubber, the raw materials for preparing the heat-resistant and wear-resistant tread base rubber provided by the present invention include 1.7 to 7.4 parts of antioxidant, preferably 2 to 6 parts. In the present invention, the antioxidant preferably includes p-phenylenediamine antioxidants and ketone-amine antioxidants; the p-phenylenediamine antioxidant is preferably 1.2 to 3.4 parts; the ketone-amine antioxidant is preferably 0.5 to 4 parts. In the present invention, the p-phenylenediamine antioxidant preferably includes p-phenylenediamine antioxidant 4020 and p-phenylenediamine antioxidant H; in the embodiments of the present invention, the p-phenylenediamine antioxidant 4020 is specifically 2.5 parts, and the p-phenylenediamine antioxidant H is specifically 0.3 parts. In the present invention, the ketone-amine antioxidant preferably includes ketone-amine antioxidant S-TMQ or BLE; in the embodiments of the present invention, the ketone-amine antioxidant S-TMQ is specifically 1.5 parts. In this invention, the addition of an antioxidant enables the tread base rubber to have good heat resistance and flexural crack resistance.

[0040] Based on the weight percentage of the N234 carbon black wet-process adhesive, the raw materials for preparing the heat-resistant and wear-resistant tread base adhesive provided by this invention include 1 to 3 parts of tear-resistant resin, preferably 1.5 to 2.5 parts, and specifically 1.5 parts, 2.0 parts, or 2.5 parts in the embodiments of this invention. In this invention, the tear-resistant resin preferably includes tear-resistant resin RT102 or SL-6903. In this invention, the addition of tear-resistant resin can significantly improve the cut resistance of the tread base adhesive without reducing its wear resistance, and also provides high tear strength, good flexural crack resistance, and good adhesion.

[0041] Based on the weight percentage of the N234 carbon black wet-process adhesive, the raw materials for preparing the heat-resistant and wear-resistant tread base adhesive provided by the present invention include 1 to 2 parts of a silane coupling agent, preferably 1.2 to 1.8 parts, and in the embodiments of the present invention, specifically 1 part, 2 parts, or 3 parts. In the present invention, the silane coupling agent preferably includes silane coupling agent Si69 or KH-845-4.

[0042] Based on the weight percentage of the N234 carbon black wet-process rubber, the raw materials for preparing the heat-resistant and wear-resistant tread base rubber provided by the present invention include 0.5 to 2 parts of the anti-reversion agent SL-9088, preferably 0.8 to 1.5 parts, and specifically 0.5 parts, 1.0 parts, or 1.5 parts in the embodiments of the present invention. In the present invention, the addition of the anti-reversion agent SL-9088 and the silane coupling agent gives the tread base rubber excellent thermal stability and dynamic balance.

[0043] Based on the weight percentage of the N234 carbon black wet-process rubber, the raw materials for preparing the heat-resistant and wear-resistant tread base rubber provided by this invention include 1.8 to 2.25 parts of a super vulcanizing agent, preferably 1.8 to 2 parts, and specifically 1.8, 1.9, or 2.0 parts in the embodiments of this invention. In this invention, the super vulcanizing agent preferably includes super vulcanizing agent PSO-50. In this invention, the super vulcanizing agent exhibits excellent resistance to reversion and significantly improved heat vulcanization resistance, maintaining good dynamic flexural properties. This invention innovatively uses a super vulcanizing agent, giving the tread base rubber excellent heat resistance and thermal stability.

[0044] Based on the weight parts of the N234 carbon black wet-process rubber, the raw materials for preparing the heat-resistant and wear-resistant tread base rubber provided by the present invention include 1 to 3 parts of stearic acid, preferably 1.5 to 2.6 parts, and in the embodiments of the present invention, specifically 2 parts or 2.5 parts.

[0045] Based on the weight percentage of the N234 carbon black wet-process adhesive, the raw materials for preparing the heat-resistant and wear-resistant tread base adhesive provided by the present invention include 1 to 3 parts of protective wax, preferably 1.2 to 2.8 parts, and specifically 2 parts in the embodiments of the present invention. In the present invention, the protective wax preferably includes Okerin 1900 or RW590.

[0046] Based on the weight percentage of the N234 carbon black wet-process rubber, the raw materials for preparing the heat-resistant and wear-resistant tread base rubber provided by the present invention include 0.5 parts of insoluble sulfur. In the present invention, the insoluble sulfur preferably includes insoluble sulfur IS-60 or IS-90.

[0047] The raw materials for preparing the heat-resistant and wear-resistant tread base rubber provided by this invention include 1.6 to 2.2 parts of a sulfenamide accelerator, preferably 1.8 to 2 parts. In this invention, the sulfenamide accelerator includes sulfenamide accelerator NS or sulfenamide accelerator CZ.

[0048] This invention combines the above-mentioned raw materials with stearic acid, protective wax, insoluble sulfur, and sulfenamide accelerators, which enables the tread base rubber to have the advantages of low dynamic heat generation, good heat resistance, high tensile strength, tear strength and elongation at break, as well as good wear resistance, high resilience and high adhesion strength to the ply layer.

[0049] This invention provides a method for preparing the heat-resistant and wear-resistant tread base rubber described above, comprising the following steps:

[0050] N234 carbon black wet process rubber, nano zinc oxide, stearic acid, antioxidant, protective wax, tear-resistant resin, silane coupling agent, insoluble sulfur, super vulcanizing agent, anti-reversion agent SL-9088 and sulfenamide accelerator are mixed and kneaded to obtain the tread base rubber with good heat resistance and wear resistance.

[0051] In this invention, when preparing a tread base rubber with good heat resistance and wear resistance using a small-scale compounding test, the raw materials are directly mixed and kneaded.

[0052] In this invention, the preparation of the heat-resistant and wear-resistant tread base rubber through small-scale compounding tests is preferably carried out on an X(S)M1.7L internal mixer. In this invention, during the small-scale compounding test, the rotor speed is preferably controlled at 35–50 r / min, more preferably 38–45 r / min, and even more preferably 40–44 r / min.

[0053] In this invention, when preparing a heat-resistant and wear-resistant tread base rubber for industrial production, the mixing process preferably includes the following steps:

[0054] N234 carbon black wet process adhesive, nano zinc oxide, stearic acid, antioxidant, protective wax, tear-resistant resin, and silane coupling agent are mixed and compounded in one stage to obtain a first stage masterbatch.

[0055] Insoluble sulfur, super vulcanizing agent, anti-reversion agent SL-9088, sulfenamide accelerator and the first stage masterbatch are mixed and then mixed in a second stage to obtain the tread base rubber with good heat resistance and wear resistance.

[0056] In this invention, the rotor speed for the first-stage mixing is preferably 35-40 r / min, more preferably 36-40 r / min; the rotor speed for the second-stage mixing is preferably 30-35 r / min, more preferably 30-43 r / min. In this invention, the mixing efficiency can be controlled by controlling the rotor speed. A higher speed requires a shorter mixing time, but the rubber compound generates more heat. If the mixing time is too short, the mixing uniformity will be affected.

[0057] In this invention, the primary and secondary mixing stages are preferably performed in an internal mixer. This invention does not impose any special requirements on the mixing methods described above; methods well-known in the art can be used.

[0058] This invention provides the application of the heat-resistant and wear-resistant tread base rubber described in the above-described scheme, or the heat-resistant and wear-resistant tread base rubber prepared by the preparation method described in the above-described scheme, in aircraft tires.

[0059] In this invention, the method of application preferably includes the following steps:

[0060] The heat-resistant and wear-resistant tread base rubber is calendered to obtain a tread base rubber sheet;

[0061] The tread base film is attached to the reinforcing layer cord fabric to obtain the cord fabric tube;

[0062] The cord tube is combined with other components to obtain a tire blank;

[0063] The tire blank is vulcanized to obtain the finished aircraft tire;

[0064] The other components include 1-tread rubber, 2-reinforcing ply, 3-tread base rubber, 4-carcass ply, 5-airtight layer, and 6-steel wire ring.

[0065] Figure 1 This is a schematic diagram of the longitudinal structure of the tire of the present invention, wherein 1-tread rubber, 2-reinforcing ply, 3-tread base rubber, 4-carcass ply, 5-airtight layer, 6-steel wire ring, and 7-rim.

[0066] In this invention, a calender is preferably used to calender the tread base rubber to obtain a tread base rubber sheet. In this invention, the cord cylinder and other components are preferably combined on a molding machine to form a tire blank. In this invention, the tire blank is preferably vulcanized using a vulcanizing machine to obtain the finished aircraft tire.

[0067] To further illustrate the present invention, the following detailed description, in conjunction with the accompanying drawings and embodiments, describes the heat-resistant and wear-resistant tread base adhesive provided by the present invention, its preparation method, and its application. However, these descriptions should not be construed as limiting the scope of protection of the present invention.

[0068] Examples 1-3

[0069] According to the raw material formula in Table 2, the speed of the first-stage mixing rotor is controlled at 35-40 r / min. N234 carbon black wet process rubber, nano zinc oxide, stearic acid, antioxidant 4020, antioxidant H, antioxidant S-TMQ, protective wax Okerin 1900, tear-resistant resin RT102 and silane coupling agent Si69 are put into the internal mixer in sequence for first-stage mixing, and the rubber is discharged to obtain the first-stage masterbatch.

[0070] The rotor speed of the two-stage mixing process is controlled at 30 r / min. The first-stage masterbatch, insoluble sulfur IS-60, super vulcanizing agent PSO-50, anti-vulcanization reversion agent SL-9088, and sulfenamide accelerator NS are sequentially added to the internal mixer for two-stage mixing. The rotor is lifted 2-3 times, and the rubber is discharged to obtain the tread base rubber with good heat resistance and wear resistance.

[0071] Table 2 shows the raw material formulations for Examples 1-3 and the common tread base rubber.

[0072]

[0073]

[0074] Performance testing

[0075] The vulcanization time, scorch time, Shore A hardness, 300% constant elongation stress, tensile strength, elongation at break, tear strength, compression fatigue heat generation, wear loss, rebound value, vulcanizer torque curve change rate, tensile strength, elongation at break, and elongation at break change rate after heat aging, as well as the inter-layer adhesion strength between the finished tire tread base rubber and the reinforcing layer were tested for the heat-resistant and wear-resistant tread base rubber obtained in Example 1 and the ordinary formulation. The results are shown in Table 3.

[0076] The test standard is GB / T 531.1-2008 "Test method for indentation hardness of vulcanized rubber or thermoplastic rubber - Part 1: Shore hardness test (Shore hardness)";

[0077] GB / T 528-2009 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber;

[0078] GB / T 529-2008 Determination of tear strength of vulcanized rubber or thermoplastic rubber (trouser-shaped, right-angled and crescent-shaped specimens)

[0079] GB / T 1687.3-2016 "Determination of temperature rise and fatigue resistance of vulcanized rubber in flexural test - Part 2: Compression flexural test";

[0080] GB / T 1689-2014 Determination of abrasion resistance of vulcanized rubber (using Akron abrasion tester)

[0081] GB / T 1681-2009 Determination of resilience of vulcanized rubber;

[0082] GB / T 9869-2014 Determination of vulcanization characteristics of rubber compounds by disc vibrating vulcanizer method;

[0083] GB / T 532-2008 Determination of the bond strength between vulcanized rubber or thermoplastic rubber and fabric.

[0084] Table 3. Performance test results of the tread base rubber of Example 1 and the ordinary formulation.

[0085]

[0086] As can be seen from Table 3, compared with the ordinary formulation of tread base rubber, the vulcanized rubber using the tread base rubber of Example 1 of the present invention has better heat aging resistance and wear resistance, higher tensile strength, elongation at break, tear strength and elasticity, lower compression fatigue heat generation, faster vulcanization speed and longer scorch time. When the tread base rubber of Example 1 of the present invention is used in stealth aircraft tires, compared with the use of ordinary formulations, the bonding strength between the rubber and the reinforcing ply is significantly improved, making the tire less prone to delamination and tread slippage under harsh conditions, thus improving the tire quality.

[0087] This invention improves the tensile strength, tear strength, elongation at break, and heat resistance of the tread base rubber by replacing the raw rubber system and reinforcing system (100 parts natural rubber and 50 parts N330 carbon black) with N234 carbon black wet-process rubber, super vulcanizing agent PSO-50 with insoluble sulfur IS-60, nano zinc oxide with zinc oxide, and adding anti-reversion agent SL-9088 and tear-resistant resin. It also reduces hysteresis loss and improves wear resistance, making it suitable for high-load, high-speed takeoff and landing conditions where the tread base area experiences high stress, deformation, and high temperature, while meeting aircraft stealth performance requirements and providing a long service life.

[0088] Although the above embodiments have provided a detailed description of the present invention, they are only some embodiments of the present invention, and not all embodiments. People can obtain other embodiments based on these embodiments without creative effort, and these embodiments all fall within the protection scope of the present invention.

Claims

1. A heat-resistant and wear-resistant base tread rubber, characterized by comprising, The preparation materials include the following parts by weight: 150 parts of N234 carbon black wet process adhesive; 5 parts of nano zinc oxide; p-Phenylenediamine antioxidant 4020, 2.5 parts; p-Phenylenediamine antioxidant H, 0.3 parts; 1.5 parts of ketone amine antioxidant S-TMQ; 1.5 parts of tear-resistant resin RT102; 2 parts of silane coupling agent Si69; Super vulcanizing agent PSO-50 1.8 parts; Anti-sulfurization reversion agent SL-9088 0.5 parts; Stearic acid 2 parts; Okerin 1900 protective wax, 2 parts; 0.5 parts of insoluble sulfur IS-60; 2.1 parts of sulfenamide accelerator NS.

2. The heat-resistant and wear-resistant base tread rubber according to claim 1, wherein The N234 carbon black wet-process adhesive includes N234 carbon black wet-process adhesive HWF-50.

3. The method for preparing the heat-resistant and wear-resistant tread base rubber according to claim 1 or 2, comprising the following steps: N234 carbon black wet-process rubber, nano zinc oxide, stearic acid, p-phenylenediamine antioxidant 4020, p-phenylenediamine antioxidant H, ketone amine antioxidant S-TMQ, protective wax Okerin 1900, tear-resistant resin RT102, silane coupling agent Si69, insoluble sulfur IS-60, super vulcanizing agent PSO-50, anti-reversion agent SL-9088, and sulfenamide accelerator NS are mixed and kneaded to obtain the aforementioned tread base rubber with good heat resistance and wear resistance.

4. The method according to claim 3, characterized in that, The mixing process includes the following steps: N234 carbon black wet process adhesive, nano zinc oxide, stearic acid, p-phenylenediamine antioxidant 4020, p-phenylenediamine antioxidant H, ketone amine antioxidant S-TMQ, protective wax Okerin 1900, tear-resistant resin RT102, and silane coupling agent Si69 are mixed and compounded to obtain a first-stage masterbatch. Insoluble sulfur, super vulcanizing agent PSO-50, anti-reversion agent SL-9088, sulfenamide accelerator NS are mixed with the first stage masterbatch and then mixed in a second stage to obtain the tread base rubber with good heat resistance and wear resistance.

5. The application of the heat-resistant and wear-resistant tread base rubber according to claim 1 or 2, or the heat-resistant and wear-resistant tread base rubber prepared by the preparation method according to claim 3 or 4, on aircraft tires.

6. Use according to claim 5, characterized in that, The method of application includes the following steps: The heat-resistant and wear-resistant tread base rubber is calendered to obtain a tread base rubber sheet; The tread base film is attached to the reinforcing layer cord fabric to obtain the cord fabric tube; The cord tube is combined with other components to obtain a tire blank; The tire blank is vulcanized to obtain the finished aircraft tire; The other components include tread rubber, reinforcing ply, tread base rubber, carcass ply, airtight layer, and bead wire.

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