WO2015109790A1 - Composition from combination of trans-polyisoprene rubber and cis-polyisoprene rubber and process therefor - Google Patents

Abstract

The main contents of the present invention are: a master batch prepared from synthetic trans-polyisoprene (TPI) (or a combination of synthetic trans-polyisoprene (TPI) and synthetic cis-polyisoprene (IR)) and white carbon black, a master batch prepared from a natural rubber and carbon black, a rubber composition further prepared from the two master batches, and a manufacturing process therefor. The process therefor comprises: compounding TPI (or the combination of TPI and IR) with white carbon black and a coupling agent to form a white carbon black master batch; compounding the natural rubber with carbon black to form a carbon black master batch; and then compounding the white carbon black master batch, the carbon black master batch, and rubber auxiliaries according to a composition ratio to form the rubber composition. A rubber material prepared by using the rubber composition of the present invention and the process therefor has the characteristics of improved abrasion resistance and reduced heat generation, and can be applied in rubber products, especially in automobile tyres, for reducing the rolling resistance and heat generation.

Description

Trans-polyisoprene rubber combined with cis-polyisoprene rubber composition and processing technique thereof Technical field

The present invention relates to the field of rubber, and more particularly to the field of rubber processing or tire manufacturing.

Background technique

The dynamic hysteresis loss performance of rubber formulations is particularly important for tire performance, and the hysteresis loss causes the compound to move. During the deformation process, the energy consumption increases, the heat generation increases, the elasticity decreases, and the rolling resistance increases. Heat generation can also lead to rubber The strength and wear resistance are reduced, causing early damage to the tire, heat generation will increase the rolling resistance of the tire, increase fuel Consumption and carbon dioxide emissions.

Domestic and foreign research results show that the use of reinforcing precipitated silica filler and coupling agent in the formulation can reduce the tire Rolling resistance. However, the specific surface area of the reinforcing silica is large, and the interaction between the fillers is strong, and it is not in the process of mixing. Easy to disperse, easy to adsorb non-rubber components, especially when mixed with natural rubber, easy to absorb non-rubber components in natural rubber, Reduce the interaction between the filler and the polymer, reducing the properties of the compound. How to improve the interaction between white carbon and rubber, reduce white It is one of the objects of the present invention to aggregate carbon black with each other to reduce heat generation without reducing wear resistance.

The invention adopts a new mixing method and a rubber composition for synthesizing polyisoprene rubber (including TPI, The IR or a combination thereof is compounded with silica, and the masterbatch process of mixing natural rubber with carbon black has the following advantages: There are few non-rubber components in the synthesis of polyisoprene. Under the action of the coupling agent, the white carbon black is more likely to interact with the polymer. The function is to reduce the heat generation of the formula and improve the wear resistance.

Patent CN102382338A discloses the blending of polyisoprene rubber with other rubbers, using polymers when blending Blended with carbon black, white carbon black, activator, antioxidant, softener, etc., such a blending method due to white carbon black Adsorption of rubber additives affects the role of synthetic polyisoprene rubber and fillers.

Patent CN102046395A discloses the application of polyisoprene rubber and natural rubber in tire formulations. N330 carbon black, and this patent is not limited to carbon black, not limited to carbon black varieties, but also used to manufacture raw materials White carbon black that does not consume petroleum resources.

Patent CN101121803A discloses a formulation of a blend of trans-polyisoprene rubber and rubber to plasticize TPI After blending directly with the rubber and then mixing the filler, this process also reduces the interaction between the filler and the polymer.

Summary of the invention

The invention adopts a new mixing method and a rubber composition for synthesizing polyisoprene rubber (including TPI, The IR or a combination thereof is compounded with silica, and the masterbatch process of mixing natural rubber with carbon black has the following advantages: There are few non-rubber components in the synthesis of polyisoprene. Under the action of the coupling agent, the white carbon black is more likely to interact with the polymer. The function is to reduce the heat generation of the formula and improve the wear resistance. The rubber composition of the invention has high wear resistance and low heat generation Point, can be used in rubber products such as tires.

The invention further relates to the following embodiments:

A rubber composition containing trans polyisoprene, the total amount of rubber being 100 parts by mass, wherein:

The total amount of synthetic trans-polyisoprene (TPI) and synthetic cis-polyisoprene (IR) is 5-60. Parts by mass, wherein TPI is 1-60 parts by mass and IR is 0-55 parts by mass;

Natural rubber: 40-95 parts by mass;

White carbon black: 5-90 parts by mass;

Carbon black: 5-90 parts by mass;

Masterbatch process:

Silica masterbatch process: synthesis of trans-polyisoprene rubber or combination with synthetic cis-polyisoprene rubber (TPI and IR composition) and white carbon black, coupling agent are kneaded in a mixer to become white carbon black masterbatch;

Carbon black masterbatch process: natural rubber and carbon black are mixed into a carbon black masterbatch in an internal mixer;

Final rubber mixing process:

The carbon black masterbatch, white carbon black masterbatch, anti-aging agent, active agent, accelerator, vulcanizing agent according to the proportion of the composition Mixing to prepare a rubber composition;

According to the above preparation method, wherein the white carbon black is an inorganic filler containing a silica component, preferably a high-dispersion white carbon black having a nitrogen adsorption specific surface area of 50 to 300 m ² /g prepared by a precipitation method; A preparation method in which the carbon black STSA has a specific surface area of 50 to ²⁰⁰ m ² /g.

According to the above preparation method, the coupling agent is an organosilane coupling agent, a zirconate coupling agent, or a hydrazine An acid ester coupling agent, a nitro coupling agent, an alcohol compound or a combination thereof, preferably an organosilane coupling agent;

According to the above preparation method, the total amount of the white carbon black and the carbon black is 10 to 130 parts by mass, preferably 15 - 120 parts by mass, more preferably 20 - 100 parts by mass.

According to the above preparation method, wherein the antioxidant is an amine antioxidant, a quinoline antioxidant, benzimidazole One or more kinds of anti-aging agents and physical protective agents;

According to the above, wherein the activator is one or more of a combination of a metal oxide and a fatty acid and a fatty acid metal soap salt The metal oxide is one or more of zinc oxide, magnesium oxide, etc., and the fatty acid metal soap salt is zinc stearate. One or more of zinc borate;

According to the above preparation method, wherein the accelerator includes, but is not limited to, a sulfenamide accelerator, thiazole promotion Agent, thiuram-like accelerator, steroid accelerator or a combination thereof, the vulcanizing agent including but not limited to sulfur, insoluble Sulphur, oil-filled sulfur, sulfur donor or a combination thereof;

The present invention also relates to a rubber composition prepared according to the above production method.

DRAWINGS

1 is a DMA temperature scan of Example 2 and Comparative Example 2 at different temperatures.

Figure 2 is a road test unit consumption index chart.

Data processing instructions

Unit consumption: the ratio of the mileage (km) of the tire to the pattern depth (mm) of the loss, the unit consumption unit is km/mm ;

Unit consumption index: The unit consumption of the comparison ratio is recorded as 100, and the ratio of the unit consumption of the example to the unit consumption of the ratio is the unit consumption index.

Detailed ways

The invention is further described by the following examples, but the scope of the invention is not limited by the examples.

Test criteria used in the examples:

Testing equipment

Table 1 Equipment for the preparation of rubber samples

Serial number	Device name	Specification model		Manufacturer
					1	Mixer	F270 or F370	American Farrell products
2	Open mill	XK660	Dalian Rubber & Plastic Machinery Co., Ltd.
				3	Open mill	152.5×320	Guangdong Zhanjiang Machinery Factory
4	Flat vulcanizing machine	XLB-D600*600	Zhejiang Huzhou Dongfang Machinery Co., Ltd.

Table 2 Test methods and instruments for physical properties of vulcanizates

The following chemicals were applied to the examples and comparative examples

20# standard rubber: Malaysia standard rubber;

Synthesis of cis-polyisoprene IR: Qingdao Ikesi New Materials Co., Ltd.;

Synthesis of trans-polyisoprene TPI: Qingdao Dipai New Material Co., Ltd.;

Organosilane coupling agent X50S: contains 50% N330 carbon black, 50% organosilane coupling agent (double (triethoxy) Propyl silane) tetrasulfide), Evonik Iridium (Rizhao) Chemical Industry Co., Ltd.;

Carbon black: N115, N234, Cabot (China) Co., Ltd.;

White carbon black 833MP: Wuxi Hengcheng Silicon Industry Co., Ltd.;

Zinc oxide: Dalian zinc oxide plant;

Stearic acid: Malaysia Licheng Co., Ltd.;

Antioxidant 4020: N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine, Jiangsu Shengao Chemical Technology Co., Ltd.;

Antioxidant RD: 2,2,4-trimethyl-1.2-dihydroquinoline polymer, Tianjin Kemai Auxiliary Co., Ltd.;

Protective wax: Baimeirui Special Chemicals (Suzhou) Co., Ltd.;

Promoter CZ: N-cyclohexyl-2-benzothiazole sulfenamide, Shandong Shanghao Chemical Co., Ltd.;

Sulfur: Qingdao Jinyuling Industrial Co., Ltd.;

Scoring agent CTP: N-cyclohexyl thiophthalimide, Shandong Yanggu Huatai Chemical Co., Ltd.;

The amounts of the components in the following examples and comparative examples are parts by mass.

Comparative example 1

Formulation: SMR20 80; trans-polyisoprene TPI20; N115 carbon black 40; white carbon black 10; silane coupling Joint agent X50S3; zinc oxide 3.5; stearic acid 2; anti-aging agent RD1.5; anti-aging agent 4020 2; protective wax 1; Admixture CZ1.7; sulfur yellow powder 0.8; scorch retarder CTP0.1.

Comparative Example 1 mixing process:

A mixing process: 80 parts by mass of SMR20 and 20 mass in F370 internal mixer at 45 rpm The amount of trans isoprene TPI, pressure mastication for 40 seconds, and the top plug is added to 30 parts by mass of carbon black N115, 10 parts by mass. White carbon black, 3 parts by mass of silane coupling agent X50S, 3.5 parts by mass of zinc oxide, 2 parts by mass of stearic acid, 1.5 parts by mass Old agent RD, 2 parts by mass of anti-aging agent 4020, 1 part by mass of protective wax, pressurized mixing for 40 seconds, topping plug cleaning, plus Pressing and kneading for 60 seconds, the pressure mixing time is 140 seconds, and the discharge temperature is 165 ° C;

Two-stage mixing process: adding 153 parts by mass of a mixture of rubber, 10 in a F370 internal mixer at a speed of 40 rpm Parts of mass N115 carbon black, after pressure mixing for 40 seconds, put the top plug, and then mix for 30 seconds to lift the top plug; Second discharge, the pressure mixing time is 100 seconds, and the discharge temperature is 155 ° C;

Final rubber mixing process: 163 parts by mass of two-stage rubber compound is added to the F270 internal mixer at a speed of 20 rpm. After pressurizing and kneading for 30 seconds, the top plug was added with 1.7 parts by mass of accelerator CZ, 0.8 parts by mass of sulfur, and kneaded for 60 seconds. After re-kneading for 30 seconds, the rubber is discharged, the pressure mixing time is 120 seconds, and the discharge temperature is 105 ° C;

Example 1

Formulation: SMR2080; synthetic trans-polyisoprene TPI20; N115 carbon black 40; white carbon black 10; silane Coupling agent X50S3; zinc oxide 3.5; stearic acid 2; anti-aging agent RD1.5; anti-aging agent 4020 2; protective wax 1; Admixture CZ1.7; sulfur yellow powder 0.8; scorch retarder CTP0.1.

Example 1 mixing process:

A section of rubber mixing process:

Carbon black masterbatch process: 80 parts by mass of SMR20 mastication is added to F370 internal mixer at 45 rpm After 60 seconds, put the top plug, add 40 parts by mass of carbon black N115, mix for 60 seconds, then lift the top plug, then mix 60 Second discharge; the pressure mixing time is 180 seconds, and the discharge temperature is 165 ° C;

White carbon black masterbatch process: 20 parts by mass of synthetic trans isomer was added to F370 internal mixer at 45 rpm Diene TPI, after 60 seconds of mixing, put a top plug, add 10 parts by mass of silica, 3 parts by mass of silane coupling agent, and mix 60 After the second, put the top plug, mix the top plug for 30 seconds, and then mix the glue for 60 seconds. The pressure mixing time is 210 seconds. The temperature is 160 ° C;

Two-stage mixing process:

120 parts by mass of carbon black masterbatch and 33 parts by mass of white carbon black mother were added to F370 internal mixer at 40 rpm. Glue, knead for 80 seconds to put on the top plug, add 3.5 parts by mass of zinc oxide, 2 parts by mass of stearic acid, 1.5 parts by mass of anti-aging agent RD, 2 parts by mass of anti-aging agent 4020, 1 part by mass of microcrystalline wax, kneaded for 70 seconds, and then kneaded for 30 seconds. The press-kneading time was 180 seconds and the discharge temperature was 155 °C.

Final rubber mixing process:

Add 163 parts by mass of two-stage mixing masterbatch in F270 internal mixer at 20 rpm, and mix for 30 seconds. Top plug plus 1.7 parts by mass of accelerator CZ, 0.8 parts by mass of sulfur, kneaded for 60 seconds, and then kneaded for 30 seconds. The pressure mixing time is 120 seconds, and the discharge temperature is 105 ° C;

Table 3: Performance comparison between Example 1 and Comparative Example 1

As can be seen from Table 3, the compression heat generation of Example 1 was lower than that of Comparative Example 1, and the Akron abrasion and DIN abrasion resistance were improved. High, indicating the superiority of the mixing process of the present invention.

Comparative example 2

Formulation: SMR20 100; N234 carbon black 30; white carbon black 20; silane coupling agent X50S5; zinc oxide 3.5; Stearic acid 2; anti-aging agent RD1.5; anti-aging agent 4020 2; protective wax 1; accelerator CZ1.7; sulfur 1.2.

One-stage rubber mixing process: adding 100 parts by mass of SMR20 to the F370 internal mixer at 45 rpm, plus Compression molding for 40 seconds, adding a top plug to add 20 parts by mass of carbon black N234, 20 parts by mass of white carbon black, 5 parts by mass of silane X50S, 3.5 parts by mass of zinc oxide, 2 parts by mass of stearic acid, 1.5 parts by mass of antioxidant RD, 2 parts by mass of antioxidant 4020, 1 The quality of the protective wax, mixing for 40 seconds to put on the top plug, and then pressurizing and mixing for 60 seconds, the pressure mixing time is 140 seconds, row The glue temperature is 165 ° C;

Two-stage mixing process: adding 155 parts by mass of a mixture of rubber, 10 in a F370 internal mixer at a speed of 40 rpm N234 carbon black, after pressure mixing for 40 seconds, put the top plug, and then mix for 30 seconds to lift the top plug; repressurize and mix 30 Second discharge, the pressure mixing time is 100 seconds, and the discharge temperature is 155 ° C;

Final rubber mixing process: adding 165 parts of two-stage mixing in the F270 internal mixer with a rotation speed of 20 rpm. After pressurizing for 40 seconds, the top plug was added to add 1.7 parts by mass of accelerator CZ, 1.2 parts by mass of sulfur, and after 70 seconds of mixing, it was cleaned. After 30 seconds of re-kneading, the rubber is discharged, the pressure mixing time is 140 seconds, and the discharge temperature is 105 ° C;

Example 2

Formulation: SMR20 60; IR 25; TPI 15; N234 carbon black 30; white carbon black 20; silane coupling agent X50S5; Zinc oxide 3.5; stearic acid 2; anti-aging agent RD1.5; anti-aging agent 4020 2; protective wax; accelerator CZ1.7; sulfur 1.2.

Example 2 mixing process:

A section of rubber mixing process:

Carbon black masterbatch process: 60 parts by mass of SMR20 mastication is added to F370 internal mixer at 45 rpm After 60 seconds, put the top plug, add 30 parts by mass of carbon black N234, mix for 60 seconds, then lift the top plug, then mix 60 Second discharge; the pressure mixing time is 180 seconds, and the discharge temperature is 160 ° C;

White carbon black masterbatch process: 15 parts by mass of synthetic trans isomer was added to F370 internal mixer at 45 rpm Diene TPI, 25 parts of synthetic cis-polyisoprene IR, 60 seconds after compounding, add top plug to add 20 parts by mass of silica, 5 parts by mass of silane coupling agent, after 60 seconds of mixing, the top plug is lifted, the top plug is lifted for 30 seconds, and the rubber is discharged for 60 seconds; The pressure mixing time is 210 seconds, and the discharge temperature is 160 ° C;

Two-stage mixing process:

90 parts by mass of carbon black masterbatch and 65 parts by mass of white carbon black masterbatch were added to an F370 internal mixer at a rotation speed of 40 rpm. The top plug is added for 80 seconds, and 3.5 parts by mass of zinc oxide, 2 parts by mass of stearic acid, 1.5 parts by mass of the antioxidant RD, 2 parts by mass of anti-aging agent 4020, 1 part by mass of protective wax, kneaded for 70 seconds to clean, and then kneaded for 30 seconds to discharge glue, pressurizing and kneading The time is 180 seconds, and the discharge temperature is 155 ° C;

Final rubber mixing process:

Add 165 parts by mass of two-stage mixing masterbatch in F270 internal mixer at 20 rpm, and mix for 30 seconds. Top plug plus 1.7 parts by mass of accelerator CZ, 0.8 parts by mass of sulfur, kneaded for 60 seconds, and then kneaded for 30 seconds. The pressure mixing time is 120 seconds, and the discharge temperature is 105 ° C;

Table 4: Performance comparison of Example 2 and Comparative Example 2

Trans-isoprene TPI is used directly in the formulation because of its low crystallization temperature, difficult processing and unvulcanized rubber The disadvantage of high rigidity of the semi-finished product. The formulation of the invention uses trans isoprene in combination with cis isoprene, using both The same molecular structure has the advantage of improving the compatibility of the two, while using cis-IR processing, the hardness is low and easy to flow. The advantage of making up for the processing weakness of trans isoprene.

From Table 4, it is explained that Example 2 has a performance advantage compared with Comparative Example 2: hardness is increased, and compression heat generation is lowered. Akron has improved wear and improved DIN wear performance.

Comparative example 3

Formulation: SMR20 85; IR15; N234 carbon black 35; white carbon black 15; silane coupling agent X50S4; oxidation Zinc 3.5; stearic acid 2; anti-aging agent RD1.5; anti-aging agent 4020 2; microcrystalline wax 1; accelerator CZ1.8; sulfur 1.2.

Comparative Example 3 mixing process:

A mixing process: adding 85 mass parts of SMR20, 15 mass to F370 internal mixer at 45 rpm The cis-isomer is IR, after 40 seconds of mastication, the top plug is added to add 25 parts by mass of carbon black N234, 15 parts by mass of white carbon black, 4 parts by mass of silane coupling agent X50S, 3.5 parts by mass of zinc oxide, 2 parts by mass of stearic acid, 1.5 parts by mass of antioxidant RD, 2 parts by mass of anti-aging agent 4020, 1 part by mass of microcrystalline wax, pressure mixing for 40 seconds, lifting the top plug to clean; re-pressurizing and kneading 60 seconds of debinding, pressure mixing time is 140 seconds, the discharge temperature is 165 ° C;

Two-stage mixing process: adding 154 parts by mass of a mixture of rubber, 10 in a F370 internal mixer at a speed of 40 rpm N234 carbon black, after pressure mixing for 40 seconds, put the top plug, and then mix for 30 seconds to lift the top plug; repressurize and mix 30 Second discharge, the pressure mixing time is 100 seconds, and the discharge temperature is 155 ° C;

Final rubber mixing process: adding 164 parts by mass of a batch of masterbatch in an internal mixer with a rotation speed of 20 rpm. After 30 seconds of refining, add the top plug to add 1.8 parts by mass of accelerator CZ, 1.2 parts by mass of sulfur, and mix for 60 seconds, then clean; After 30 seconds of mixing, the rubber is discharged, the pressure mixing time is 120 seconds, and the discharge temperature is 105 ° C;

Example 3

Formulation: SMR20 70; IR15; TPI15N234 carbon black 35; white carbon black 15; silane coupling agent X50S4; Zinc oxide 3.5; stearic acid 2; anti-aging agent RD1.5; anti-aging agent 4020 2; microcrystalline wax; accelerator CZ1.8; sulfur 1.2.

A mixing process:

Carbon black masterbatch process: 70 parts by mass of SMR20 mastication is added to F370 internal mixer at 45 rpm After 60 seconds, put the top plug, add 35 parts by mass of carbon black N234, mix for 60 seconds, then lift the top plug, then mix 60 Second discharge; the pressure mixing time is 180 seconds, and the discharge temperature is 160 °C.

White carbon black masterbatch process: 15 parts by mass of synthetic trans isomer was added to F370 internal mixer at 45 rpm Diene TPI, 15 parts by mass of synthetic cis isoprene IR, after 60 seconds of mixing, put a top plug and add 15 parts by mass of white carbon Black, 4 parts by mass of silane coupling agent X50S, after 60 seconds of mixing, put the top plug, and then mix for 30 seconds to put the top plug, then mix The rubber was discharged in 60 seconds, the pressure mixing time was 210 seconds, and the discharge temperature was 160 °C.

Two-stage mixing process:

105 parts by mass of carbon black masterbatch and 49 parts by mass of white carbon black mother were added to F370 internal mixer at 40 rpm. Glue, knead for 80 seconds to put on the top plug, add 3.5 parts by mass of zinc oxide, 2 parts by mass of stearic acid, 1.5 parts by mass of anti-aging agent RD, 2 parts by mass of anti-aging agent 4020, 1 part by mass of protective wax, mixing for 70 seconds, then mixing for 30 seconds, adding Pressing and mixing time is 180 seconds, and the discharge temperature is 155 ° C;

Three-stage mixing process:

In a mixer with a rotation speed of 20 rpm, 164 parts by mass of two-stage mixing masterbatch was added, and the top plug was added for 30 seconds. 1.8 parts by mass of accelerator CZ, 1.2 parts by mass of sulfur, mixing for 60 seconds, mixing for 30 seconds, and mixing The time is 120 seconds, and the discharge temperature is 105 ° C;

Table 5: Performance comparison of Example 3 and Comparative Example 3

The data in Table 5 shows that the compression heat generation of Example 3 is lower than that of Comparative Example 3, and the cloning wear is improved. The performance is improved; Figure 1 is a DMA scan of Example 3 and Comparative Example 3 at different temperatures, tan δ at 60 ° C Below the comparative example 3, it shows that if used as a tire product, the rolling resistance is low and the fuel consumption is low.

In order to further verify the wear of the formulation, the tires prepared in the above Example 3 and Comparative Example 3 were subjected to a road test. It was installed on two trucks with a load capacity of 35 tons. Figure 2 shows the average value of the road test results of the two cars. From the data, with the compositions and processes of the present invention, the unit cost of the road test is significantly higher than the comparative ratio.

Claims (8)

1. A rubber composition containing trans polyisoprene, the total amount of rubber being 100 parts by mass, wherein:

   The total amount of synthetic trans-polyisoprene (TPI) and synthetic cis-polyisoprene (IR) is 5-60. Parts by mass, wherein TPI is 1-60 parts by mass and IR is 0-55 parts by mass;

   Natural rubber: 40-95 parts by mass;

   White carbon black: 5-90 parts by mass;

   Carbon black: 5-90 parts by mass;

   Masterbatch process:

   Silica masterbatch process: synthesis of trans-polyisoprene rubber or combination with synthetic cis-polyisoprene rubber (TPI and IR composition) and white carbon black, coupling agent are kneaded in a mixer to become white carbon black masterbatch;

   Carbon black masterbatch process: natural rubber and carbon black are mixed into a carbon black masterbatch in an internal mixer;

   Final rubber mixing process:

   The carbon black masterbatch, white carbon black masterbatch, anti-aging agent, active agent, accelerator, vulcanizing agent according to the proportion of the composition Mixing to prepare a rubber composition;
2. The preparation method according to claim 1, wherein the white carbon black is an inorganic filler containing a silica component, preferably a high-dispersion silica having a nitrogen adsorption specific surface area of 50 to 300 m ² /g prepared by a precipitation method; The preparation method according to 1, wherein the carbon black STSA has a specific surface area of 50 to ²⁰⁰ m ² /g.
3. The production method according to claim 1, wherein said coupling agent is an organosilane coupling agent, zirconium acid An ester coupling agent, a phthalate coupling agent, a nitro coupling agent, an alcohol compound or a combination thereof, preferably an organosilane coupling Agent
4. The preparation method according to claim 1, wherein the total amount of the white carbon black and the carbon black is 10-130 The amount is preferably 15 to 120 parts by mass, more preferably 20 to 100 parts by mass.
5. The preparation method according to claim 1, wherein the antioxidant is an amine antioxidant, quinoline anti-aging One or more kinds of agents, benzimidazole anti-aging agents and physical protective agents;
6. According to claim 1, wherein the activator is a combination of a metal oxide and a fatty acid and a fatty acid metal soap One or more kinds of salts, the metal oxide being one or more of zinc oxide, magnesium oxide, etc., the fatty acid metal soap salt Is one or more of zinc stearate, zinc borate;
7. The preparation method according to claim 1, wherein the accelerator includes, but is not limited to, a sulfenamide accelerator, a thiazole accelerator, a thiuram accelerator, a quinone accelerator, or a combination thereof, the vulcanizing agent including but not limited to Sulfur, insoluble sulfur, oil-saturated sulfur, sulfur donor or a combination thereof;
8. A rubber composition prepared by the production method according to any one of claims 1 to 7.

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