Modified siloxane tire material and preparation method thereof

Abstract

The invention relates to the technical field of tire materials, and discloses a modified siloxane tire material and a preparation method thereof. Comprising the following components in parts by weight: 90 to 110 parts by weight of butadiene rubber, 3 to 5 parts by weight of modified siloxane, 1 to 1.6 parts by weight of modified polyether, 8 to 10 parts by weight of carbon black, 1 to 1.5 parts by weight of stearic acid, 0.6 to 1 part by weight of an anti-aging agent 4010, 2 to 3 parts by weight of sulfur, 1.4 to 1.8 parts by weight of an accelerant TT and 2 to 2.6 parts by weight of zinc oxide. The modified siloxane tire material disclosed by the invention has relatively good wear-resistant, tensile and tear-resistant effects.

Description

Technical Field

[0001] The present invention relates to the technical field of tire materials, in particular to a modified siloxane tire material and a preparation method thereof. Background Art

[0002] With the development of the automotive industry, demands for tire performance are becoming increasingly stringent. Traditional tire materials struggle to simultaneously meet these high-performance requirements in terms of wear resistance and tensile strength. Silicone materials, due to their unique chemical structure, offer advantages such as excellent flexibility and high and low-temperature resistance. However, when directly applied to tire materials, they suffer from poor compatibility with other rubber components and unsatisfactory reinforcement. Modifying silicones to optimize their application in tire materials and enhance overall tire performance has become a pressing challenge in this field. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In view of the deficiencies of the prior art, the present invention provides a modified siloxane tire material and a preparation method thereof, which has good wear resistance, tensile strength and tear resistance.

[0005] (2) Technical solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a modified silicone tire material, comprising the following components by weight: 90-110 parts by weight of butadiene rubber, 3-5 parts by weight of modified silicone, 1-1.6 parts by weight of modified polyether, 8-10 parts by weight of carbon black, 1-1.5 parts by weight of stearic acid, 0.6-1 parts by weight of antioxidant 4010, 2-3 parts by weight of sulfur, 1.4-1.8 parts by weight of accelerator TT, and 2-2.6 parts by weight of zinc oxide.

[0007] Furthermore, the preparation method of the modified siloxane is:

[0008] S1. Imidazole was added to N,N-dimethylformamide solvent and stirred to dissolve under nitrogen atmosphere. Then, sodium hydride was added and stirred at room temperature for 25-30 minutes. Then, 4-chloromethylbiphenyl was added and reacted at 55-60°C for 20-30 minutes after complete dissolution. The reaction solution was precipitated in deionized water to obtain imidazole intermediate 1.

[0009] S2. The imidazole intermediate 1 and sodium 3-chloro-2-hydroxypropanesulfonate were added to N,N-dimethylformamide solvent, stirred and dissolved, and a 4-5% mass fraction of sodium hydroxide aqueous solution was added. The reaction was carried out at 65-75 ° C for 5-7 hours. After the reaction, dilute hydrochloric acid was added dropwise to adjust the pH to 7. The mixture was distilled under reduced pressure and filtered to obtain intermediate 2;

[0010] S3. To 60-70mL of dimethyl sulfoxide solvent was added 0.5-0.7mmol octaepoxy cage silsesquioxane, 6-10mmol intermediate 2, stirred and mixed, and then 0.2-0.3mmol boron trifluoride etherate catalyst was added, and the reaction was allowed to proceed at 110-120°C. After completion, the reaction was cooled to room temperature, filtered, and dried to obtain a silyl chain extender;

[0011] In the above reaction process, the hydroxyl group in the intermediate 2 and the epoxy group in the octaepoxy cage silsesquioxane undergo an addition reaction to generate a hydroxyl group, thereby obtaining a silane chain extender;

[0012] S4. Add 20-35 mmol of polyethylene glycol 2000 to the reactor, vacuum dry and dehydrate, introduce nitrogen into the reaction flask, continue to add 16-24 mmol of toluene diisocyanate, 85-95 mL of acetone and 0.1-0.3 mmol of catalyst, react at 60-65°C for 2-3 hours, then add 2-3 mmol of silane chain extender, react at 40-50°C for 50-60 minutes, stir to carry out chain extension reaction, wait for the reaction to be completed, cool naturally, and discharge to obtain modified siloxane.

[0013] Furthermore, the usage ratio of N,N-dimethylformamide, imidazole, sodium hydride and 4-chloromethylbiphenyl in S1 is 65-75 mL: 4.6-7 mmol: 4.8-6.5 mmol: 5-6.3 mmol.

[0014] Furthermore, the usage ratio of the imidazole intermediate 1, sodium 3-chloro-2-hydroxypropanesulfonate, and N,N-dimethylformamide in S2 is 2.4-3 mmol: 2.5-3.2 mmol: 55-60 mL.

[0015] Furthermore, the reaction time in S3 is 2-3 hours.

[0016] Furthermore, the catalyst in S4 is dibutyltin dilaurate.

[0017] Furthermore, the preparation method of the modified polyether is as follows: 0.28-0.31 g of a polyether triol with a molecular weight of 3000 and 0.112-0.115 g of 1-pyrenebutyric acid are dissolved in 10-15 mL of dichloromethane, and the mixture is stirred and mixed evenly. Then, 2.3-2.5 mg of 4-dimethylaminopyridine and 47-49.5 mg of N, N-dicyclohexylcarbodiimide are weighed respectively, and the mixture is stirred at room temperature for 10-12 hours. After the reaction is completed, the solid by-products are filtered out, and the filtrate is precipitated with diethyl ether three times, and dried in a vacuum at 60° C. to obtain the modified polyether.

[0018] Furthermore, the preparation method of the modified silicone tire material is:

[0019] Step 1: placing butadiene rubber, modified silicone, modified polyether, stearic acid, and zinc oxide in an internal mixer for the first mixing, with the internal mixer speed being 70-75 r / min, the internal mixing time being 140-150 s, and the discharge temperature being 160-165° C., to obtain a rubber mix A;

[0020] Step 2: Place the rubber mix A and carbon black in an internal mixer for a second mixing at a mixer speed of 55-65 r / min, a mixing time of 102-110 s, and a discharge temperature of 140-145°C to obtain rubber mix B;

[0021] Step 3: Place the mixed rubber B, antioxidant 4010, sulfur, and accelerator TT in an internal mixer for final mixing at a mixer speed of 40-50 r / min, a mixing time of 90-100 s, and a discharge temperature of 95-100°C to obtain a modified silicone tire material.

[0022] (3) Beneficial technical effects

[0023] The present invention significantly reduces the wear volume of tire by introducing modified siloxane and modified polyether into tire material, makes it have excellent wear resistance; The cross-linked structure formed by the octaepoxy cage type silsesquioxane and intermediate 2 introduced in the modified siloxane, combined with the reinforcement effect of carbon black, greatly improves the surface hardness and wear resistance of the material. Butadiene rubber has good elasticity as a base material, and the molecular chain network formed by modified siloxane through silane-based chain extender and polyethylene glycol, toluene diisocyanate, and synthesizes a polyurethane structure, significantly improves the tensile strength of the material, makes the tire difficult to break during load and deformation. In the process of banburying, modified polyether, rubber matrix, modified siloxane, the cross-linked structure formed between the three, enhances the tear resistance of the material, and the benzene ring structure contained in the cross-linked structure, enhances the rigidity and wear resistance of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the reaction formula of modified polyether.

[0025] Figure 2 is the reaction formula of intermediate 2. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Octaepoxy cage silsesquioxane: The structure is as follows

[0029]

[0030] Example 1

[0031] A modified silicone tire material comprises the following components by weight: 90 parts by weight of butadiene rubber, 3 parts by weight of modified silicone, 1 part by weight of modified polyether, 8 parts by weight of carbon black, 1 part by weight of stearic acid, 0.6 parts by weight of antioxidant 4010, 2 parts by weight of sulfur, 1.4 parts by weight of accelerator TT, and 2 parts by weight of zinc oxide.

[0032] The preparation method of the modified siloxane is:

[0033] S1. Add 4.6 mmol of imidazole to 65 mL of N,N-dimethylformamide solvent and stir to dissolve under nitrogen atmosphere. Then add 4.8 mmol of sodium hydride and stir at room temperature for 25 min. Then, add 5 mmol of 4-chloromethylbiphenyl. After complete dissolution, react at 55°C for 20 min. The reaction solution is precipitated in deionized water to obtain imidazole intermediate 1.

[0034] S2. Add 2.4 mmol of imidazole intermediate 1 and 2.5 mmol of sodium 3-chloro-2-hydroxypropanesulfonate to 55 mL of N,N-dimethylformamide solvent and stir to dissolve. Then add 3 mL of 4% sodium hydroxide aqueous solution and react at 65°C for 5 h. After reaction, add dilute hydrochloric acid dropwise to adjust the pH to 7. Distill under reduced pressure and filter to obtain intermediate 2.

[0035] S3. To 60 mL of dimethyl sulfoxide solvent was added 0.5 mmol of octaepoxy cage silsesquioxane and 6 mmol of intermediate 2, stirred and mixed, and then 0.2 mmol of boron trifluoride etherate catalyst was added. The reaction was carried out at 110 ° C for 2 h, and then cooled to room temperature, filtered, and dried to obtain a silyl chain extender;

[0036] S4. Add 20 mmol of polyethylene glycol 2000 to the reactor, vacuum dry and dehydrate, introduce nitrogen into the reaction flask, continue to add 16 mmol of toluene diisocyanate, 85 mL of acetone and 0.1 mmol of dibutyltin dilaurate, react at 60°C for 2 hours, then add 2 mmol of silane chain extender, react at 40°C for 50 minutes, stir to carry out chain extension reaction, wait for the reaction to be completed, cool naturally, and discharge to obtain modified siloxane.

[0037] The modified polyether is prepared by dissolving 0.28 g of a polyether triol with a molecular weight of 3000 and 0.112 g of 1-pyrenebutyric acid in 10 mL of dichloromethane, stirring and mixing the mixture evenly. 2.3 mg of 4-dimethylaminopyridine and 47 mg of N,N-dicyclohexylcarbodiimide are then weighed and stirred at room temperature for 10 hours. After the reaction is completed, solid by-products are removed by filtration, and the filtrate is precipitated with diethyl ether three times and dried under vacuum at 60° C. to obtain the modified polyether.

[0038] The preparation method of the modified silicone tire material is:

[0039] Step 1: Place butadiene rubber, modified silicone, modified polyether, stearic acid, and zinc oxide in an internal mixer for the first mixing at a mixer speed of 70 r / min, a mixing time of 140 s, and a discharge temperature of 16° C. to obtain a rubber mix A;

[0040] Step 2: Rubber mix A and carbon black are mixed in an internal mixer for a second time at a mixer speed of 55 r / min, a mixing time of 102 s, and a discharge temperature of 140°C to obtain rubber mix B;

[0041] Step 3: Place the mixed rubber B, antioxidant 4010, sulfur, and accelerator TT in an internal mixer for final mixing. The internal mixer speed is 40r / min, the mixing time is 90s, and the rubber discharge temperature is 95°C to obtain a modified silicone tire material.

[0042] Example 2

[0043] A modified silicone tire material comprises the following components by weight: 110 parts by weight of butadiene rubber, 5 parts by weight of modified silicone, 1.6 parts by weight of modified polyether, 10 parts by weight of carbon black, 1.5 parts by weight of stearic acid, 1 part by weight of antioxidant 4010, 3 parts by weight of sulfur, 1.8 parts by weight of accelerator TT, and 2.6 parts by weight of zinc oxide.

[0044] The preparation method of the modified siloxane is:

[0045] S1. Add 7 mmol of imidazole to 75 mL of N,N-dimethylformamide solvent and stir to dissolve under nitrogen atmosphere. Then add 6.5 mmol of sodium hydride and stir at room temperature for 30 min. Then, add 6.3 mmol of 4-chloromethylbiphenyl. After complete dissolution, react at 60°C for 30 min. The reaction solution is precipitated in deionized water to obtain imidazole intermediate 1.

[0046] S2. 3 mmol of imidazole intermediate 1 and 3.2 mmol of sodium 3-chloro-2-hydroxypropanesulfonate were added to 60 mL of N,N-dimethylformamide solvent and dissolved with stirring. 5 mL of 5% sodium hydroxide solution was added and the mixture was reacted at 75°C for 7 h. After reaction, dilute hydrochloric acid was added dropwise to adjust the pH to 7. The mixture was evaporated under reduced pressure and filtered to obtain intermediate 2.

[0047] S3. To 70 mL of dimethyl sulfoxide solvent was added 0.7 mmol of octaepoxy cage silsesquioxane and 10 mmol of intermediate 2, stirred and mixed, and then 0.3 mmol of boron trifluoride etherate catalyst was added. The reaction was carried out at 120 ° C for 3 h, and then cooled to room temperature, filtered, and dried to obtain a silyl chain extender;

[0048] S4. Add 35 mmol of polyethylene glycol 2000 to the reactor, vacuum dry and dehydrate, introduce nitrogen into the reaction flask, continue to add 24 mmol of toluene diisocyanate, 95 mL of acetone and 0.3 mmol of dibutyltin dilaurate, react at 65°C for 3 hours, then add 3 mmol of silane chain extender, react at 50°C for 60 minutes, stir to carry out chain extension reaction, wait for the reaction to be completed, cool naturally, and discharge to obtain modified siloxane.

[0049] The modified polyether is prepared by dissolving 0.31 g of a polyether triol with a molecular weight of 3000 and 0.115 g of 1-pyrenebutyric acid in 15 mL of dichloromethane, stirring and mixing the mixture evenly. 2.5 mg of 4-dimethylaminopyridine and 49.5 mg of N,N-dicyclohexylcarbodiimide are then weighed and stirred at room temperature for 12 hours. After the reaction is completed, solid by-products are removed by filtration, and the filtrate is precipitated with diethyl ether three times and dried under vacuum at 60° C. to obtain the modified polyether.

[0050] The preparation method of the modified silicone tire material is:

[0051] Step 1: placing butadiene rubber, modified silicone, modified polyether, stearic acid, and zinc oxide in an internal mixer for the first mixing at a mixer speed of 75 r / min, a mixing time of 150 s, and a discharge temperature of 165° C. to obtain a rubber mix A;

[0052] Step 2: Rubber mix A and carbon black are mixed in an internal mixer for a second time at a mixer speed of 65 r / min, a mixing time of 110 s, and a discharge temperature of 145°C to obtain rubber mix B;

[0053] Step 3: Place the mixed rubber B, antioxidant 4010, sulfur, and accelerator TT in an internal mixer for final mixing. The internal mixer speed is 50 r / min, the mixing time is 100 s, and the rubber discharge temperature is 100°C to obtain a modified silicone tire material.

[0054] Example 3

[0055] A modified silicone tire material comprises the following components by weight: 100 parts by weight of butadiene rubber, 4 parts by weight of modified silicone, 1.3 parts by weight of modified polyether, 9 parts by weight of carbon black, 1.2 parts by weight of stearic acid, 0.8 parts by weight of antioxidant 4010, 2.5 parts by weight of sulfur, 1.6 parts by weight of accelerator TT, and 2.3 parts by weight of zinc oxide.

[0056] The preparation method of the modified siloxane is:

[0057] S1. Add 5.4 mmol of imidazole to 70 mL of N,N-dimethylformamide solvent and stir to dissolve under nitrogen atmosphere. Then add 6.1 mmol of sodium hydride and stir at room temperature for 28 minutes. Then, add 6.1 mmol of 4-chloromethylbiphenyl. After complete dissolution, react at 58°C for 25 minutes. The reaction solution is precipitated in deionized water to obtain imidazole intermediate 1.

[0058] S2. Add 2.8 mmol of imidazole intermediate 1 and 3 mmol of sodium 3-chloro-2-hydroxypropanesulfonate to 57 mL of N,N-dimethylformamide solvent and stir to dissolve. Then add 4 mL of 4.5% sodium hydroxide aqueous solution and react at 70°C for 6 h. After reaction, add dilute hydrochloric acid dropwise to adjust the pH to 7. Distill under reduced pressure and filter to obtain intermediate 2.

[0059] S3. To 65mL of dimethyl sulfoxide solvent was added 0.6mmol of octaepoxy cage silsesquioxane and 6-10mmol of intermediate 2, stirred and mixed, and then 0.25mmol of boron trifluoride etherate catalyst was added. The reaction was carried out at 115°C for 2.5h, and then cooled to room temperature, filtered, and dried to obtain a silyl chain extender.

[0060] S4. Add 30 mmol of polyethylene glycol 2000 to the reactor, vacuum dry and dehydrate, introduce nitrogen into the reaction flask, continue to add 20 mmol of toluene diisocyanate, 90 mL of acetone and 0.2 mmol of dibutyltin dilaurate, react at 63°C for 2 hours, then add 2.5 mmol of silane chain extender, react at 45°C for 55 minutes, stir to carry out chain extension reaction, wait for the reaction to be completed, cool naturally, and discharge to obtain modified siloxane.

[0061] The preparation method of the modified polyether is as follows: 0.29 g of polyether triol with a molecular weight of 3000, 0.113 g of 1-pyrene butyric acid are dissolved in 12 mL of dichloromethane, stirred and uniformly mixed, then 2.4 mg of 4-dimethylaminopyridine and 48 mg of N, N-dicyclohexyl carbodiimide are weighed respectively, stirred at room temperature for 11 h, after the reaction is completed, the solid by-product is removed by filtration, the filtrate is precipitated with ether three times, and dried at 60°C under vacuum to obtain the modified polyether.

[0062] The preparation method of the modified siloxane tire material is as follows:

[0063] Step one: the butadiene rubber, modified siloxane, modified polyether, stearic acid, and zinc oxide are placed in an internal mixer for first mixing, the internal mixer speed is 73 r / min, the mixing time is 145 s, and the discharge temperature is 162°C, to obtain the mixed rubber A;

[0064] Step two: the mixed rubber A and carbon black are placed in an internal mixer for second mixing, the internal mixer speed is 60 r / min, the mixing time is 105 s, and the discharge temperature is 143°C, to obtain the mixed rubber B;

[0065] Step three: the mixed rubber B, antioxidant 4010, sulfur, and accelerator TT are placed in an internal mixer for final mixing, the internal mixer speed is 45 r / min, the mixing time is 96 s, and the discharge temperature is 97°C, to obtain the modified siloxane tire material.

[0066] Comparative Example 1

[0067] The difference between this comparative example and Example 3 is that the imidazole-based intermediate 1 is used instead of the modified siloxane.

[0068] Comparative Example 2

[0069] The difference between this comparative example and Example 3 is that the modified polyether is not added.

[0070] Performance test

[0071] Tensile strength: tested according to ASTM D638.

[0072] Abrasion resistance is tested according to the GB / T1689-2014 standard.

[0073] Tear strength: tested according to the GB / T529-2008 standard.

[0074] Fatigue resistance (durability test) is tested according to the GB / T31546-2015 and GB / T31549-2015 standards.

[0075] Table 1: Tire performance test.

[0076]

[0077] As can be seen from Table 1, the modified silicone tire materials prepared in the present invention, Examples 1-3, have better tensile strength, wear volume, and tear strength than Comparative Examples 1-2, and also have good anti-fatigue effect.

[0078] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

[0080] Those skilled in the art should understand that the above descriptions are only some specific embodiments of the present invention, rather than all embodiments.

Claims

1. A modified silicone tire material, characterized in that: The invention comprises the following components by weight: 90-110 parts by weight of butadiene rubber, 3-5 parts by weight of modified silicone, 1-1.6 parts by weight of modified polyether, 8-10 parts by weight of carbon black, 1-1.5 parts by weight of stearic acid, 0.6-1 parts by weight of antioxidant 4010, 2-3 parts by weight of sulfur, 1.4-1.8 parts by weight of accelerator TT, and 2-2.6 parts by weight of zinc oxide.

2. The modified silicone tire material according to claim 1, characterized in that The preparation method of the modified siloxane is: S1. Imidazole was added to N,N-dimethylformamide solvent and stirred to dissolve under nitrogen atmosphere. Then, sodium hydride was added and stirred at room temperature for 25-30 minutes. Then, 4-chloromethylbiphenyl was added and reacted at 55-60°C for 20-30 minutes after complete dissolution. The reaction solution was precipitated in deionized water to obtain imidazole intermediate 1. S2. The imidazole intermediate 1 and sodium 3-chloro-2-hydroxypropanesulfonate were added to N,N-dimethylformamide solvent, stirred and dissolved, and a 4-5% mass fraction of sodium hydroxide aqueous solution was added. The reaction was carried out at 65-75 ° C for 5-7 hours. After the reaction, dilute hydrochloric acid was added dropwise to adjust the pH to 7. The mixture was distilled under reduced pressure and filtered to obtain intermediate 2; S3. To 60-70mL of dimethyl sulfoxide solvent was added 0.5-0.7mmol octaepoxy cage silsesquioxane, 6-10mmol intermediate 2, stirred and mixed, and then 0.2-0.3mmol boron trifluoride etherate catalyst was added, and the reaction was allowed to proceed at 110-120°C. After completion, the reaction was cooled to room temperature, filtered, and dried to obtain a silyl chain extender; S4. Add 20-35 mmol of polyethylene glycol 2000 to the reactor, vacuum dry and dehydrate, introduce nitrogen into the reaction flask, continue to add 16-24 mmol of toluene diisocyanate, 85-95 mL of acetone and 0.1-0.3 mmol of catalyst, react at 60-65°C for 2-3 hours, then add 2-3 mmol of silane chain extender, react at 40-50°C for 50-60 minutes, stir to carry out chain extension reaction, wait for the reaction to be completed, cool naturally, and discharge to obtain modified siloxane.

3. The modified silicone tire material according to claim 2, characterized in that: The usage ratio of N,N-dimethylformamide, imidazole, sodium hydride and 4-chloromethylbiphenyl in S1 is 65-75 mL: 4.6-7mmol: 4.8-6.5mmol: 5-6.3mmol.

4. The modified silicone tire material according to claim 2, characterized in that: The usage ratio of the imidazole intermediate 1, sodium 3-chloro-2-hydroxypropanesulfonate, and N,N-dimethylformamide in S2 is 2.4-3 mmol: 2.5-3.2 mmol: 55-60 mL.

5. The modified silicone tire material according to claim 2, characterized in that: The reaction time in S3 is 2-3 hours.

6. The modified silicone tire material according to claim 2, characterized in that: The catalyst in S4 is dibutyltin dilaurate.

7. The modified silicone tire material according to claim 1, characterized in that: The preparation method of the modified polyether comprises the following steps: dissolving 0.28-0.31 g of a polyether triol with a molecular weight of 3000 and 0.112-0.115 g of 1-pyrenebutyric acid in 10-15 mL of dichloromethane, stirring and mixing the mixture evenly, and then weighing 2.3-2.5 mg of 4-dimethylaminopyridine and 47-49.5 mg of N,N-dicyclohexylcarbodiimide, respectively, stirring the mixture at room temperature for 10-12 hours. After the reaction is completed, filtering and removing solid byproducts, precipitating the filtrate with diethyl ether three times, and drying the mixture under vacuum at 60° C. to obtain the modified polyether.

8. A method for preparing a modified silicone tire material according to any one of claims 1 to 7, characterized in that: The preparation method of the modified silicone tire material is: Step 1: placing butadiene rubber, modified silicone, modified polyether, stearic acid, and zinc oxide in an internal mixer for the first mixing, with the internal mixer speed being 70-75 r / min, the internal mixing time being 140-150 s, and the discharge temperature being 160-165° C., to obtain a rubber mix A; Step 2: Place the rubber mix A and carbon black in an internal mixer for a second mixing at a mixer speed of 55-65 r / min, a mixing time of 102-110 s, and a discharge temperature of 140-145°C to obtain rubber mix B; Step 3: Place the mixed rubber B, antioxidant 4010, sulfur, and accelerator TT in an internal mixer for final mixing at a mixer speed of 40-50 r / min, a mixing time of 90-100 s, and a discharge temperature of 95-100°C to obtain a modified silicone tire material.

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