High-performance rubber sealing ring material and preparation method thereof

Abstract

The invention provides a high-performance rubber sealing ring material and a preparation method thereof. The sealing ring material is prepared from the following raw materials in parts by weight: 100 parts of fluororubber, 30-60 parts of methyl vinyl silicone rubber, 15-30 parts of fluorosilicified carbon nanotubes, 5-30 parts of a filling agent, 2-6 parts of a cross-linking agent, 0.5-2 parts of an activating agent, 1-5 parts of an anti-aging agent and 0.1-1 part of an antioxidant. According to the high-performance rubber sealing ring material and the preparation method thereof, the sealing ring material is good in sealing performance, high in wear resistance, aging resistance and medium resistance and very high in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of sealing materials, and in particular to a high-performance rubber sealing ring material and a preparation method thereof. Background Art

[0002] A rubber sealing ring is an annular cover composed of one or more parts, which is fixed on a ring or washer of a bearing and contacts or forms a narrow labyrinth gap with another ring or washer. Its function is to prevent the leakage of lubricating oil and the intrusion of foreign objects. At present, rubber sealing rings have been widely used in the sealing of diesel locomotives, automobiles, tractors, construction machinery, machine tools and various hydraulic and pneumatic components. However, with the extension of service time and the influence of the environment, the existing rubber sealing rings have problems such as wear, aging, poor medium resistance, etc., which easily cause sealing failure. This will not only affect the efficiency of mechanical work, but also pose certain safety risks. Therefore, it is of great significance to provide a high-performance rubber sealing ring material that is wear-resistant, aging-resistant and medium-resistant. Summary of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a high-performance rubber sealing ring material and a preparation method thereof. The sealing ring material has good sealing performance, high wear resistance, aging resistance, and medium resistance, and is very practical.

[0004] The present invention provides a high-performance rubber sealing ring material, which comprises the following raw materials in parts by weight: 100 parts of fluororubber, 30-60 parts of methyl vinyl silicone rubber, 15-30 parts of fluorinated siliconized carbon nanotubes, 5-30 parts of filler, 2-6 parts of cross-linking agent, 0.5-2 parts of activator, 1-5 parts of antioxidant, and 0.1-1 parts of antioxidant.

[0005] In the present invention, fluororubber and methyl vinyl silicone rubber are compounded as the base rubber, and the fluororubber has good solvent and oil resistance, and the methyl vinyl silicone rubber has good high and low temperature resistance. Fluorosiliconized carbon nanotubes are used as a reinforcing filling system for reinforcement. The fluorine and silicon groups contained in the carbon nanotubes improve the compatibility between the fluororubber and the methyl vinyl silicone rubber, thereby preparing a composite rubber sealing ring material with excellent wear resistance, medium resistance and aging resistance.

[0006] Preferably, the fluorinated carbon nanotubes are prepared by the following method: condensing hydroxylated carbon nanotubes and carboxyl trithiocarbonate, and then adding fluorinated acrylate monomers, alkenyl silane coupling agent monomers and azobisisobutyronitrile initiator to carry out polymerization reaction to obtain the fluorinated carbon nanotubes.

[0007] Preferably, the carboxyl trithiocarbonate is 2-(dodecyl trithiocarbonate)-2-methylpropionic acid, the fluorine-containing acrylate monomer is at least one of hexafluorobutyl (meth)acrylate, dodecafluoroheptyl (meth)acrylate or tridecafluorooctyl (meth)acrylate, and the alkenyl silane coupling agent is at least one of 3-(isomethacryloyloxy)propyltrimethoxysilane, vinyltriethoxysilane or vinyltrimethoxysilane;

[0008] Preferably, the weight ratio of the hydroxylated carbon nanotubes, the fluorinated acrylate monomer and the alkenyl silane coupling agent is 1:1-1.5:0.1-0.3.

[0009] In the present invention, the fluorinated siliconized carbon nanotubes are prepared by subjecting hydroxylated carbon nanotubes and carboxyl trithiocarbonate to a condensation reaction, grafting trithiocarbonate groups onto the surface of the carbon nanotubes, which can serve as a chain transfer agent, and then polymerizing fluorinated acrylate monomers and alkenyl silane coupling agent monomers through a reversible addition-fragmentation chain transfer reaction, so that fluorinated silicon-containing polymers are grafted onto the surface of the carbon nanotubes, namely the fluorinated siliconized carbon nanotubes.

[0010] In the present invention, the above-mentioned fluorinated siliconized carbon nanotubes, on the one hand, have a polymer formed by copolymerization of fluorinated acrylate and alkenyl silane coupling agent grafted on the surface, and the fluorinated silicon group thereof has a similar chemical structure to fluororubber and methyl vinyl silicone rubber, so that it can form a good affinity with fluororubber and methyl vinyl silicone rubber. The fluorinated siliconized carbon nanotubes can also be uniformly dispersed in the rubber matrix compounded with fluororubber and methyl vinyl silicone rubber as a reinforcing agent, and form a good entanglement with the rubber matrix, thereby strengthening the mechanical improvement effect of the carbon nanotubes; on the other hand, the carbon nanotubes can also uniformly disperse the heat absorbed by the material, inhibit the oxidation of the side methyl of the silicone rubber and the reaction of the silanol group, and reduce the loss of mechanical properties of the material.

[0011] Preferably, the filler is at least one of N990 carbon black, N550 carbon black, graphene, calcium carbonate, zinc oxide, titanium dioxide or silicon carbide.

[0012] Preferably, the crosslinking agent is at least one of di-tert-butyl diisopropylbenzene peroxide, bisphenol AF or 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, and the activator is at least one of triallyl isocyanurate or benzyl triphenylphosphonium chloride.

[0013] Preferably, the antioxidant is at least one of antioxidant 4010NA, antioxidant RD, antioxidant 445, antioxidant MB or antioxidant DNP.

[0014] Preferably, the antioxidant is at least one of antioxidant 1010, antioxidant 1076, antioxidant 1098, antioxidant 245, antioxidant AO-20 or antioxidant 1330.

[0015] Preferably, the sealing ring material further includes 1-3 parts of an acid absorber, and the acid absorber is at least one of magnesium oxide or calcium hydroxide.

[0016] The present invention also proposes a method for preparing the above-mentioned high-performance rubber sealing ring material, comprising: adding fluororubber and methyl vinyl silicone rubber by weight into an open mill and mixing them evenly, then adding fluorinated siliconized carbon nanotubes, fillers, antioxidants and antioxidants, after mixing evenly, adding cross-linking agents and activators, performing the first vulcanization and the second vulcanization, so as to obtain the above-mentioned high-performance rubber sealing ring material.

[0017] Preferably, the pressure of the first vulcanization is 10-15 MPa, the temperature is 160-170° C., and the vulcanization time is 10-15 min; the temperature of the second vulcanization is 200-210° C., and the vulcanization time is 2-4 h.

[0018] In the sealing ring material of the present invention, fluororubber and methyl vinyl silicone rubber are compounded and used to obtain a better sealing effect; the fluorinated siliconized carbon nanotubes can be evenly dispersed in the rubber matrix to form an overall cross-linked network structure of fluororubber, methyl vinyl silicone rubber and carbon nanotubes, which not only increases the cross-linking density, but also improves the interface compatibility of carbon nanotubes, fluororubber and methyl vinyl silicone rubber, thereby improving the wear resistance, aging resistance, medium resistance and other properties of the obtained sealing ring. DETAILED DESCRIPTION

[0019] The technical solutions of the present invention are described in detail below through specific embodiments. However, it should be clearly stated that these embodiments are for illustration only and are not to be construed as limiting the scope of the present invention.

[0020] Example 1

[0021] A high-performance rubber sealing ring material comprises the following raw materials in parts by weight: 100 parts of fluororubber (model VITON A-401C), 45 parts of methyl vinyl silicone rubber (model 110-2 / 2S), 22 parts of fluorinated siliconized carbon nanotubes, 17 parts of filler (the weight ratio of N990 carbon black and nano calcium carbonate is 3:1), 4 parts of crosslinking agent (2,5-dimethyl-2,5-di-tert-butyl peroxyhexane), 1 part of activator (triallyl isocyanurate), 3 parts of antioxidant (the weight ratio of antioxidant 4010NA and antioxidant RD is 1:1), and 0.5 parts of antioxidant (antioxidant 1076);

[0022] In the above sealing ring material, the fluorinated siliconized carbon nanotubes are prepared by the following method:

[0023] The multi-walled carbon nanotubes were added to a mixed acid solution composed of concentrated nitric acid and concentrated sulfuric acid in a volume ratio of 1:3, and the mixture was hydrothermally reacted at 50°C for 12 hours, filtered, washed with water until neutral, and dried to obtain hydroxylated carbon nanotubes; the hydroxylated carbon nanotubes were added to tetrahydrofuran and dispersed evenly, and N, N-dicyclohexylcarbodiimide and 2-(dodecyl trithiocarbonate)-2-methylpropionic acid were added, wherein the weight ratio of the hydroxylated carbon nanotubes, N, N-dicyclohexylcarbodiimide and 2-(dodecyl trithiocarbonate)-2-methylpropionic acid was 1:0.3:0.2, and the mixture was stirred at room temperature for 48 hours. , filtering, washing, and drying to obtain carbon nanotubes with a grafted chain transfer agent; adding the carbon nanotubes with a grafted chain transfer agent into tetrahydrofuran and dispersing them uniformly, then adding hexafluorobutyl (meth)acrylate, 3-(isobutyleneoxy)propyltrimethoxysilane and azobisisobutyronitrile, wherein the weight ratio of hydroxylated carbon nanotubes, hexafluorobutyl (meth)acrylate, 3-(isobutyleneoxy)propyltrimethoxysilane and azobisisobutyronitrile is 1:1.2:0.2:0.005, heating to 50°C under nitrogen protection, stirring for 12 hours, filtering, washing, and drying to obtain the fluorinated siliconized carbon nanotubes.

[0024] The preparation method of the above-mentioned high-performance rubber sealing ring material comprises:

[0025] Fluorine rubber and methyl vinyl silicone rubber are added to an open mill according to the above weight parts and mixed evenly, and then fluorinated siliconized carbon nanotubes, fillers, antioxidants and antioxidants are added and mixed evenly. The mixing temperature is 130° C. and the time is 1.5 hours. Then, a crosslinking agent and an activator are added and mixed evenly. After being pressed into thin sheets, a mixed rubber is obtained;

[0026] The rubber mixture is preformed and placed in a forming mold, and the first vulcanization is carried out on a flat vulcanizer. The pressure of the first vulcanization is 12MPa, the temperature is 165°C, and the vulcanization time is 12min. After the vulcanization is completed, the mold is taken out, allowed to cool naturally and demolded, and then placed in a vacuum oven for a second vulcanization. The temperature of the second vulcanization is 205°C, and the vulcanization time is 3h, so as to obtain the high-performance rubber sealing ring material.

[0027] Example 2

[0028] A high-performance rubber sealing ring material comprises the following raw materials in parts by weight: 100 parts of fluororubber (model VITON A-401C), 30 parts of methyl vinyl silicone rubber (model 110-2 / 2S), 30 parts of fluorinated carbon nanotubes, 5 parts of filler (the weight ratio of N550 carbon black and nano calcium carbonate is 1:1), 6 parts of crosslinking agent (bisphenol AF), 0.5 parts of activator (benzyl triphenyl phosphine chloride), 5 parts of antioxidant (the weight ratio of antioxidant RD and antioxidant MB is 1:1), and 0.1 parts of antioxidant (antioxidant 1010);

[0029] In the above sealing ring material, the fluorinated siliconized carbon nanotubes are prepared by the method described in Example 1.

[0030] The preparation method of the above-mentioned high-performance rubber sealing ring material comprises:

[0031] Fluorine rubber and methyl vinyl silicone rubber are added to an open mill according to the above weight parts and mixed evenly, and then fluorinated siliconized carbon nanotubes, fillers, antioxidants and antioxidants are added and mixed evenly. The mixing temperature is 130° C. and the time is 1.5 hours. Then, a crosslinking agent and an activator are added and mixed evenly. After being pressed into thin sheets, a mixed rubber is obtained;

[0032] The rubber mixture is preformed and placed in a forming mold, and the first vulcanization is carried out on a flat vulcanizer. The pressure of the first vulcanization is 10MPa, the temperature is 170°C, and the vulcanization time is 10min. After the vulcanization is completed, the mold is taken out, allowed to cool naturally and demolded, and then placed in a vacuum oven for a second vulcanization. The temperature of the second vulcanization is 210°C, and the vulcanization time is 2h, so as to obtain the high-performance rubber sealing ring material.

[0033] Example 3

[0034] A high-performance rubber sealing ring material comprises the following raw materials in parts by weight: 100 parts of fluororubber (model VITON A-401C), 60 parts of methyl vinyl silicone rubber (model 110-2 / 2S), 15 parts of fluorinated carbon nanotubes, 30 parts of filler (the weight ratio of N990 carbon black and nano calcium carbonate is 10:1), 2 parts of crosslinking agent (di-tert-butyl diisopropylbenzene peroxide), 2 parts of activator (triallyl isocyanurate), 1 part of antioxidant (the weight ratio of antioxidant 4010NA and antioxidant RD is 1:1), 1 part of antioxidant (antioxidant 1076), and 2 parts of acid absorbent (magnesium oxide);

[0035] In the above sealing ring material, the fluorinated siliconized carbon nanotubes are prepared by the method described in Example 1.

[0036] The preparation method of the above-mentioned high-performance rubber sealing ring material comprises:

[0037] Fluorine rubber and methyl vinyl silicone rubber are added to an open mill according to the above weight parts and mixed evenly, and then fluorinated siliconized carbon nanotubes, fillers, antioxidants, antioxidants and acid absorbers are added and mixed evenly. The mixing temperature is 130° C. and the time is 1.5 hours. Then, a crosslinking agent and an activator are added and mixed evenly. After being pressed into thin sheets, a mixed rubber is obtained;

[0038] After the rubber mixture is preformed, it is placed in a forming mold and subjected to the first vulcanization on a flat vulcanizer. The pressure of the first vulcanization is 15 MPa, the temperature is 160°C, and the vulcanization time is 15 min. After the vulcanization is completed, the mold is taken out, allowed to cool naturally and demolded, and then placed in a vacuum oven for the second vulcanization. The temperature of the second vulcanization is 200°C, and the vulcanization time is 4 h, thereby obtaining the high-performance rubber sealing ring material.

[0039] Comparative Example 1

[0040] A high-performance rubber sealing ring material comprises the following raw materials in parts by weight: 100 parts of fluororubber (model VITON A-401C), 45 parts of methyl vinyl silicone rubber (model 110-2 / 2S), 22 parts of multi-walled carbon nanotubes, 17 parts of filler (the weight ratio of N990 carbon black and nano calcium carbonate is 3:1), 4 parts of cross-linking agent (2,5-dimethyl-2,5-di-tert-butyl peroxyhexane), 1 part of activator (triallyl isocyanurate), 3 parts of antioxidant (the weight ratio of antioxidant 4010NA and antioxidant RD is 1:1), and 0.5 parts of antioxidant (antioxidant 1076);

[0041] The preparation method of the above-mentioned high-performance rubber sealing ring material comprises:

[0042] Fluororubber and methyl vinyl silicone rubber are added into an open mill according to the above weight parts and mixed evenly, and then multi-walled carbon nanotubes, fillers, antioxidants and antioxidants are added and mixed evenly. The mixing temperature is 130° C. and the time is 1.5 hours. Then, a crosslinking agent and an activator are added and mixed evenly. After being pressed into thin sheets, a mixed rubber is obtained;

[0043] The rubber mixture is preformed and placed in a forming mold, and the first vulcanization is carried out on a flat vulcanizer. The pressure of the first vulcanization is 12MPa, the temperature is 165°C, and the vulcanization time is 12min. After the vulcanization is completed, the mold is taken out, allowed to cool naturally and demolded, and then placed in a vacuum oven for a second vulcanization. The temperature of the second vulcanization is 205°C, and the vulcanization time is 3h, so as to obtain the high-performance rubber sealing ring material.

[0044] Comparative Example 2

[0045] A high-performance rubber sealing ring material comprises the following raw materials in parts by weight: 100 parts of fluororubber (model VITON A-401C), 45 parts of methyl vinyl silicone rubber (model 110-2 / 2S), 22 parts of siliconized carbon nanotubes, 17 parts of filler (the weight ratio of N990 carbon black and nano calcium carbonate is 3:1), 4 parts of cross-linking agent (2,5-dimethyl-2,5-di-tert-butyl peroxyhexane), 1 part of activator (triallyl isocyanurate), 3 parts of antioxidant (the weight ratio of antioxidant 4010NA and antioxidant RD is 1:1), and 0.5 parts of antioxidant (antioxidant 1076);

[0046] In the above sealing ring material, the siliconized carbon nanotubes are prepared by the following method:

[0047] The multi-walled carbon nanotubes were added to a mixed acid solution composed of concentrated nitric acid and concentrated sulfuric acid in a volume ratio of 1:3, and the mixture was hydrothermally reacted at 50°C for 12 hours, filtered, washed with water until neutral, and dried to obtain hydroxylated carbon nanotubes; the hydroxylated carbon nanotubes were added to tetrahydrofuran and dispersed evenly, and then N, N-dicyclohexylcarbodiimide and 2-(dodecyl trithiocarbonate)-2-methylpropionic acid were added, wherein the weight ratio of the hydroxylated carbon nanotubes, N, N-dicyclohexylcarbodiimide and 2-(dodecyl trithiocarbonate)-2-methylpropionic acid was 1:0.3:0.2, and the mixture was stirred at room temperature for 48 ℃. h, filtering, washing and drying to obtain carbon nanotubes with grafted chain transfer agent; adding the carbon nanotubes with grafted chain transfer agent into tetrahydrofuran and dispersing them evenly, then adding n-butyl (meth)acrylate, 3-(isobutyleneoxy)propyltrimethoxysilane and azobisisobutyronitrile, wherein the weight ratio of hydroxylated carbon nanotubes, n-butyl (meth)acrylate, 3-(isobutyleneoxy)propyltrimethoxysilane and azobisisobutyronitrile is 1:1.2:0.2:0.005, heating to 50°C under nitrogen protection, stirring for reaction for 12h, filtering, washing and drying to obtain the siliconized carbon nanotubes.

[0048] The preparation method of the high-performance rubber sealing ring material comprises:

[0049] Fluororubber and methyl vinyl silicone rubber are added into an open mill according to the above weight parts and mixed evenly, and then siliconized carbon nanotubes, fillers, antioxidants and antioxidants are added and mixed evenly. The mixing temperature is 130° C. and the time is 1.5 hours. Then, a crosslinking agent and an activator are added and mixed evenly. After being pressed into thin sheets, a mixed rubber is obtained;

[0050] The rubber mixture is preformed and placed in a forming mold, and the first vulcanization is carried out on a flat vulcanizer. The pressure of the first vulcanization is 12MPa, the temperature is 165°C, and the vulcanization time is 12min. After the vulcanization is completed, the mold is taken out, allowed to cool naturally and demolded, and then placed in a vacuum oven for a second vulcanization. The temperature of the second vulcanization is 205°C, and the vulcanization time is 3h, so as to obtain the high-performance rubber sealing ring material.

[0051] Comparative Example 3

[0052] A high-performance rubber sealing ring material comprises the following raw materials in parts by weight: 100 parts of fluororubber (model VITON A-401C), 45 parts of methyl vinyl silicone rubber (model 110-2 / 2S), 22 parts of fluorinated carbon nanotubes, 17 parts of filler (the weight ratio of N990 carbon black and nano calcium carbonate is 3:1), 4 parts of cross-linking agent (2,5-dimethyl-2,5-di-tert-butyl peroxyhexane), 1 part of activator (triallyl isocyanurate), 3 parts of antioxidant (the weight ratio of antioxidant 4010NA and antioxidant RD is 1:1), and 0.5 parts of antioxidant (antioxidant 1076);

[0053] In the above sealing ring material, the fluorinated carbon nanotubes are prepared by the following method:

[0054] The multi-walled carbon nanotubes are added to a mixed acid solution composed of concentrated nitric acid and concentrated sulfuric acid in a volume ratio of 1:3, and after hydrothermal reaction at 50° C. for 12 hours, the solution is filtered, washed with water until neutral, and dried to obtain hydroxylated carbon nanotubes; the hydroxylated carbon nanotubes are added to tetrahydrofuran and dispersed evenly, and then N, N-dicyclohexylcarbodiimide and 2-(dodecyl trithiocarbonate)-2-methylpropionic acid are added, wherein the weight ratio of the hydroxylated carbon nanotubes, N, N-dicyclohexylcarbodiimide and 2-(dodecyl trithiocarbonate)-2-methylpropionic acid is 1:3. :0.3:0.2, after stirring and reacting at room temperature for 48 hours, filtering, washing, and drying to obtain carbon nanotubes with grafted chain transfer agent; adding the carbon nanotubes with grafted chain transfer agent into tetrahydrofuran and dispersing them evenly, then adding hexafluorobutyl (meth)acrylate and azobisisobutyronitrile, wherein the weight ratio of hydroxylated carbon nanotubes, hexafluorobutyl (meth)acrylate and azobisisobutyronitrile is 1:1.2:0.005, heating to 50°C under nitrogen protection, stirring and reacting for 12 hours, filtering, washing, and drying to obtain the fluorinated siliconized carbon nanotubes.

[0055] The preparation method of the high-performance rubber sealing ring material comprises:

[0056] Fluororubber and methyl vinyl silicone rubber are added into an open mill according to the above weight parts and mixed evenly, then fluorinated carbon nanotubes, filler, antioxidant and antioxidant are added and mixed evenly, the mixing temperature is 130° C., the mixing time is 1.5 hours, then a crosslinking agent and an activator are added and mixed evenly, and a sheet is pressed to obtain a mixed rubber;

[0057] The rubber mixture is preformed and placed in a forming mold, and the first vulcanization is carried out on a flat vulcanizer. The pressure of the first vulcanization is 12MPa, the temperature is 165°C, and the vulcanization time is 12min. After the vulcanization is completed, the mold is taken out, allowed to cool naturally and demolded, and then placed in a vacuum oven for a second vulcanization. The temperature of the second vulcanization is 205°C, and the vulcanization time is 3h, so as to obtain the high-performance rubber sealing ring material.

[0058] The high performance rubber sealing ring materials obtained in the examples and comparative examples were prepared and tested according to standard test samples, and the data results of the performance tests are shown in Table 1 below.

[0059] Among them, the test methods and standards involved are as follows:

[0060] The Shore A hardness is tested according to GB / T 531.1-2008; the tensile strength is tested according to GB / T 528-2009; the oil resistance is tested according to ISO 1817:2011; the Akron abrasion is tested according to GB / T 1689-2014; the heat aging resistance is tested by aging the sample in a hot air aging box at 250°C for 70 hours, and then the tensile strength and elongation at break are tested again according to the same standard.

[0061] Table 1 Test results of the rubber sealing ring materials described in the embodiments and comparative examples

[0062]

[0063]

[0064] It can be seen from the results in the above table that the wear resistance, aging resistance, medium resistance and other properties of the seal obtained by the material described in the present invention are significantly improved.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-performance rubber sealing ring material, characterized in that: The sealing ring material comprises the following raw materials in parts by weight: 100 parts of fluororubber, 30-60 parts of methyl vinyl silicone rubber, 15-30 parts of fluorinated siliconized carbon nanotubes, 5-30 parts of filler, 2-6 parts of crosslinking agent, 0.5-2 parts of activator, 1-5 parts of antioxidant and 0.1-1 parts of antioxidant.

2. The high performance rubber sealing ring material according to claim 1, characterized in that: The fluorinated carbon nanotubes are prepared by the following method: condensing hydroxylated carbon nanotubes and carboxyl trithiocarbonate, adding fluorinated acrylate monomers, alkenyl silane coupling agent monomers and azobisisobutyronitrile initiator to carry out polymerization reaction, thus obtaining the fluorinated carbon nanotubes.

3. The high performance rubber sealing ring material according to claim 2, characterized in that: The carboxyl trithiocarbonate is 2-(dodecyl trithiocarbonate)-2-methylpropionic acid, the fluorine-containing acrylate monomer is at least one of hexafluorobutyl (meth)acrylate, dodecafluoroheptyl (meth)acrylate or tridecafluorooctyl (meth)acrylate, and the alkenyl silane coupling agent is at least one of 3-(isomethacryloyloxy)propyltrimethoxysilane, vinyltriethoxysilane or vinyltrimethoxysilane; Preferably, the weight ratio of the hydroxylated carbon nanotubes, the fluorinated acrylate monomer and the alkenyl silane coupling agent is 1:1-1.5:0.1-0.

3.

4. The high performance rubber sealing ring material according to any one of claims 1 to 3, characterized in that: The filler is at least one of N990 carbon black, N550 carbon black, graphene, calcium carbonate, zinc oxide, titanium dioxide or silicon carbide.

5. The high performance rubber sealing ring material according to any one of claims 1 to 4, characterized in that: The crosslinking agent is at least one of di-tert-butyl diisopropylbenzene peroxide, bisphenol AF or 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, and the activator is at least one of triallyl isocyanurate or benzyl triphenylphosphonium chloride.

6. The high performance rubber sealing ring material according to any one of claims 1 to 5, characterized in that: The antioxidant is at least one of antioxidant 4010NA, antioxidant RD, antioxidant 445, antioxidant MB or antioxidant DNP.

7. The high performance rubber sealing ring material according to any one of claims 1 to 6, characterized in that: The antioxidant is at least one of antioxidant 1010, antioxidant 1076, antioxidant 1098, antioxidant 245, antioxidant AO-20 or antioxidant 1330.

8. The high performance rubber sealing ring material according to any one of claims 1 to 7, characterized in that: The sealing ring material also includes 1-3 parts of an acid absorber, and the acid absorber is at least one of magnesium oxide or calcium hydroxide.

9. A method for preparing the high-performance rubber sealing ring material according to any one of claims 1 to 8, characterized in that: include: Fluororubber and methyl vinyl silicone rubber are added to an open mill according to weight and mixed evenly, and then fluorinated siliconized carbon nanotubes, fillers, antioxidants and antioxidants are added. After mixing evenly, a crosslinking agent and an activator are added, and the first vulcanization and the second vulcanization are carried out to obtain the high-performance rubber sealing ring material.

10. The method for preparing the high-performance rubber sealing ring material according to claim 9, characterized in that: The pressure of the first vulcanization is 10-15MPa, the temperature is 160-170°C, and the vulcanization time is 10-15min; the temperature of the second vulcanization is 200-210°C, and the vulcanization time is 2-4h.

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