205results about "Rubber insulators" patented technology

The invention provides a low-smoke halogen-free flame-retardant cable material and a preparation method thereof, and belongs to the field of cable materials. The low-smoke halogen-free flame-retardant cable material is prepared from the following chemical components: 32 to 40 parts of nitrile rubber, 22 to 27 parts of natural rubber, 8 to 12 parts of benzoxazole-siloxane copolymer containing phosphate dynamic bonds, 13 to 15 parts of core-shell-sheath three-stage structure flame retardant, 4 to 6 parts of hexaphenoxy cyclotriphosphazene modified carbon nanotubes, 2 to 3 parts of europium-doped mesoporous cerium dioxide and 3 to 4 parts of nano zinc oxide. The composite material is prepared from the following components in parts by weight: 3 to 4 parts of carbon nanotube grafted montmorillonite hybrid, 2 to 3 parts of lubricant, 0.8 to 1.2 parts of cross-linking agent, 0.3 to 0.4 part of accelerant, 0.4 to 0.6 part of dicumyl peroxide and 0.1 to 0.2 part of antioxidant. Unification of high flame retardance, low smoke, excellent mechanical property and processability of the cable material is realized.

The invention discloses a flexible fireproof cable and a preparation method thereof, and belongs to the technical field of cables. The cable comprises a conductor, a mica insulation layer, a copper protection layer, a buffer layer and a cable sheath layer. The buffer layer is made of a polyurethane foaming material; the cable sheath layer is prepared from the following components in parts by weight: 80 to 100 parts of methyl vinyl silicone rubber, 18 to 20 parts of modified carbon black, 5 to 8 parts of titanium dioxide, 1 to 2 parts of platinum catalyst, 3 to 6 parts of hydroxyl silicone oil, 0.5 to 1 part of zinc stearate and 0.8 to 1 part of dicumyl peroxide. The modified carbon black is added into the raw materials of the sheath layer, so that the compatibility, the interface bonding force and the flame retardant property of the carbon black and a silicone rubber matrix are effectively improved, and the mechanical property, the wear resistance and the fireproof property of the cable sheath layer are remarkably enhanced.

The invention relates to the technical field of cables, and provides an anti-aging insulated power cable. A conductor layer and an anti-aging outer sheath layer are sequentially arranged from inside to outside. The anti-aging outer sheath layer is prepared from the following raw materials in parts by weight: 55 to 65 parts of PVC (Polyvinyl Chloride) resin, 20 to 30 parts of ethylene propylene diene monomer, 10 to 15 parts of ethylene-vinyl acetate copolymer, 10 to 12 parts of modified kaolin, 18 to 20 parts of diisononyl phthalate, 4 to 5 parts of calcium-zinc composite stabilizer, 1.5 to 2 parts of antioxidant, 0.5 to 1 part of polyethylene wax and 0.5 to 0.7 part of calcium stearate; the modified kaolin is obtained by coating the surface of kaolin with nano silicon dioxide to obtain SiO2-coated kaolin and grafting the SiO2-coated kaolin with an ultraviolet absorbent. According to the anti-aging insulated power cable prepared in the invention, the problem that the ultraviolet absorbent may be decomposed, volatilized or migrated to fail in long-term use is solved, and the anti-aging stability of the insulating material in long-term operation is improved.

The invention discloses an industrial high-temperature-resistant cable, and belongs to the technical field of cables. The cable comprises a cable core and a sheath layer wrapping the cable core. The sheath layer comprises the following components in parts by weight: 32-38 parts of alkenyl polyvinyl chloride, 38-42 parts of methyl vinyl silicone rubber, 15-20 parts of modified basalt fibers, 1-2 parts of a vulcanizing agent, 6-10 parts of a plasticizer, 1-2 parts of a lubricant, 1-2 parts of a stabilizer and 0.3-0.8 part of an antioxidant. Functional modification is performed on the surface of the basalt fiber, so that the basalt fiber and a polymer matrix of the cable sheath can form a multi-layer and firm chemical structure, and the comprehensive performance of the sheath material is effectively improved.

The environment-friendly cable ethylene-propylene insulation material comprises the following raw materials: ethylene propylene diene monomer, an elastomer, a reinforcing agent, a flame retardant, a vulcanizing activator, a filler, a plasticizer, an anti-aging agent, a vulcanizing agent and a silane coupling agent. 50-70 parts by mass of ethylene propylene diene monomer rubber; the elastomer is a POE (polyolefin elastomer) of 30-50 parts; the flame retardant is prepared from 30 to 50 parts of nano magnesium hydroxide, 5 to 10 parts of microencapsulated red phosphorus and 3 to 5 parts of zinc borate; and the plasticizer is paraffin oil. According to the ethylene-propylene insulating material, a halogen-free flame-retardant system is combined with an interface modification technology, so that the defects of poor mechanical property and high material toxicity of a traditional material are overcome. The oxygen index is greater than or equal to 38%, the tensile strength is greater than or equal to 10Mpa, and the material is suitable for high-risk mine environments.

The invention provides a high-hardness easy-to-cut silicone rubber material as well as a preparation method and application thereof. The high-hardness easy-to-cut silicone rubber material comprises the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 25-40 parts of fumed silica, 1.5-3 parts of hydroxyl silicone oil, 0.8-1.2 parts of a cross-linking agent, 0.05-0.1 part of a platinum catalyst and 1-2 parts of a heat-resistant stabilizer. Through screening and synergistic compounding of specific components in the silicone rubber material, synergistic optimization of shore hardness and elongation at break of the silicone rubber material is realized, and the silicone rubber material is ensured to be free of cracks after being aged at 180 DEG C for 3000 hours and still has an excellent elongation at break retention rate after being aged.

The invention relates to the technical field of cable processing, and discloses a magnesium hydroxide-silicone rubber flame-retardant cable filling material and a preparation method thereof.The preparation method comprises the following steps that KH-570 hydrolysate is dropwise added into magnesium hydroxide dispersion liquid, and modified magnesium hydroxide is obtained through a reaction; dispersing the modified magnesium hydroxide, PCS and a first catalyst in an organic solvent, and reacting in an inert gas atmosphere for 2-4 hours to obtain PCS-coated magnesium hydroxide; modifying the PCS-coated magnesium hydroxide with a silane coupling agent to obtain modified PCS-coated magnesium hydroxide; silicone rubber, modified PCS coated magnesium hydroxide, fumed silica and hydroxyl silicone oil are mixed to form a rubber material; and adding a cross-linking agent and a second catalyst, and reacting to obtain the flame-retardant cable filling material. According to the invention, after magnesium hydroxide is coated with PCS, the silane coupling agent is adopted for modification, and when the material encounters high temperature or flame, a firm and compact ceramic protection layer can be generated, so that the effects of heat insulation, oxygen insulation and melting and dripping prevention are achieved.

The invention discloses an anti-embrittlement flexible armored cable in an extremely cold environment. The anti-embrittlement flexible armored cable comprises a conductor, an insulating layer, a buffer isolation layer, a flexible armored layer and an outer sheath layer which are sequentially arranged from inside to outside. According to the armored cable, the structure of an existing cable is improved, the material formula of the insulating layer and the material formula of the outer sheath layer are optimized, the requirements for embrittlement resistance and high flexibility can be met, the protection performance of the armored cable can be enhanced, and aging tests show that the cable has good flexibility. The cable can meet the use requirement of long-term stable operation under the extremely cold severe condition with the temperature of-60 DEG C, has important practical significance and economic value, is reasonable in design, and is worthy of popularization and use.

The invention relates to the technical field of external insulating materials for power equipment, in particular to silicone rubber, a preparation method thereof and application of the silicone rubber in a composite insulator. The silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber raw rubber, 5-20 parts of hydrophobic silicon dioxide aerogel powder, 3-15 parts of conductive and heat-conducting filler, 10-30 parts of modified aluminum hydroxide, 15-35 parts of fumed silica, 1-3 parts of a silane coupling agent and 2-5 parts of a structuring control agent, 1-4 parts by weight of a low surface energy auxiliary agent, and 0.5-2 parts by weight of a vulcanizing agent. The silicone rubber provided by the invention integrates long-acting hydrophobic anti-icing, active low-power-consumption ice melting and excellent arc ablation resistance, has long-term stability, and is especially suitable for high-voltage insulators in severe environments such as heavy ice areas and heavy dirty areas.

A silicone rubber insulator shed material, and a silicone rubber insulator and a preparation method therefor and an application thereof. The components of the silicone rubber insulator shed material comprise silicone rubber, iron oxide, nano-montmorillonite, fumed silica, aluminum hydroxide, a silane coupling agent, a vulcanizing agent, and hydroxy silicone oil, wherein the iron oxide and the nano-montmorillonite can slow down the thermal oxidation decomposition of the silicone rubber, thus improving the hydrophobicity, hydrophobic mobility and hydrophobic recovery of the silicone rubber composite insulator, thereby solving the technical problem in the prior art that the aging decomposition resistance of silicone rubber needs to be improved.

The invention relates to the technical field of cable sheath preparation, and discloses a cable sheath which comprises the following components in parts by weight: basic rubber materials: vinyl-terminated methyl vinyl silicone rubber and crosslinked polyethylene; the synergistic flame-retardant system is prepared from zinc borate, ammonium polyphosphate, melamine, pentaerythritol and composite modified nano montmorillonite; the nano composite additive is prepared from nano silicon dioxide, nano zinc oxide, nano boron nitride and graphene; an interface compatilizer: maleic anhydride grafted polyethylene; according to the invention, through component optimization and synergistic cooperation, on the premise of not depending on a halogen flame retardant, high flame retardance, excellent mechanical properties and stable aging resistance are realized at the same time, and strict requirements of high-end cables on safety and reliability are met. Besides, the material preparation process is simple and controllable, is suitable for large-scale production, and can be widely applied to the fields of high-rise buildings, rail transit, new energy and the like with high requirements on the performance of the cable sheath.

The invention relates to a protective sleeve for a flame-retardant cable, a preparation method of the protective sleeve and the flame-retardant cable. The protective sleeve for the flame-retardant cable comprises the following components in parts by weight: 40-60 parts of chlorinated polyethylene, 1-10 parts of a polyolefin elastomer, 1-10 parts of modified magnesium hydroxide, 1-10 parts of an antimony-containing flame retardant and 1-8 parts of modified magnesium-aluminum hydrotalcite. The flame-retardant cable comprises a conductor, an insulating layer and the protective sleeve, wherein the insulating layer comprises the following components in parts by weight: 40-60 parts of ethylene propylene diene monomer and 30-60 parts of modified magnesium hydroxide. The formula of the protective sleeve for the flame-retardant cable is reasonably designed, so that the prepared protective sleeve has excellent flame retardance, torsion resistance and aging resistance. The flame-retardant cable is further matched with a protective sleeve and an insulating layer containing modified magnesium hydroxide, and the flame-retardant cable which is suitable for wind power generation and passes an A-type bunching combustion test is prepared.

The invention discloses an algicidal and bacteriostatic room temperature vulcanized silicone rubber insulating material and a preparation method thereof, and belongs to the technical field of electrical insulating materials. The material is composed of quaternary ammonium salt group-containing hydroxyl-terminated polysiloxane (QASPS) as a base adhesive, a solvent, a reinforcing filler, a cross-linking agent and a catalyst, wherein the QASPS is used for grafting a quaternary ammonium salt group derived from quaternization reaction of N, N-dimethyl octylamine and chloropropyl to a polysiloxane main chain through a covalent bond. Through molecular structure innovation, the antibacterial components are stably immobilized in a cross-linked network, and the problem that the insulativity is affected due to the fact that an antibacterial agent added in a traditional physical mode is easy to dissolve out is fundamentally solved. The prepared silicone rubber material has long-acting antibacterial property, excellent electrical insulation property and good mechanical strength, is particularly suitable for solving the problem of microbial aging on the outer insulation surface of power equipment in high-humidity areas such as tropical areas and subtropical areas, and ensures safe and stable operation of a power grid.

The application belongs to the technical field of cable materials, and discloses a cold-resistant and anti-cracking type special cable made of silicone rubber, which comprises a conductor cable core, an inner protective sleeve and an outer protective sleeve from inside to outside, wherein the raw materials of the outer protective sleeve comprise end-vinyl diphenyl siloxane, methyl vinyl siloxane, silane modified nano silicon dioxide, polyborosiloxane, an inhibitor, hydroxyl silicone oil, modified anti-ultraviolet polyurethane, a platinum catalyst and tetra(dimethylsiloxane) silane; diphenyl siloxane with a diphenyl side chain is selected as a main chain, and the modified anti-ultraviolet polyurethane is grafted to effectively destroy the structural regularity, inhibit low-temperature crystallization and prevent cable cracking; 4,4'-diamino benzophenone with anti-ultraviolet function is used as a chain extender and benzotriazole is used as an end-capping agent to be grafted into the polyurethane chain, so that the anti-ultraviolet capacity can be improved and migration can be avoided.

The invention discloses a production method of a high-structural-strength insulating steel tape armored multi-core power cable. The power cable comprises a conductor unit and an insulating layer from inside to outside, wherein the conductor unit is formed by twisting and pressing a conductor with a copper base material, the conductor unit is wrapped outside the conductor, the overlapping rate of the conductor unit is larger than or equal to 50%, and the insulating layer is formed by semi-conductive ceramic silicone rubber and / or crosslinked polyethylene. The double-layer wrapping tape is composed of ceramic silicone rubber filling strips and assists the insulating core wires to be twisted into a cable and is of a filling structure; an inner sheath made of a ceramic silicone rubber material; the composite armor layer is composed of an inner-layer galvanized steel band and an outer-layer stainless steel band; the buffer layer is composed of an aramid fiber woven mesh or a ceramic fiber belt; and the outer sheath is composed of ceramic silicone rubber or a low-smoke halogen-free flame-retardant material of which the oxygen index is greater than or equal to 40. The cable is high in structural strength, good in temperature resistance and high in impact resistance, high-temperature mechanical locking is achieved through tension-controlled double-layer reverse wrapping, and the performance of the cable is greatly improved.

The invention relates to the field of power cables, and particularly discloses an acid and alkali resistant waterproof power cable. The acid and alkali resistant waterproof power cable comprises a conductor layer, an insulating layer and a sheath layer which are sequentially arranged from inside to outside, the preparation method comprises the following steps: S1, preparing the conductor layer: smelting electrolytic copper, tin, silver and rare earth elements, and then performing wire drawing, and controlling the wire drawing speed to be 10-15m / s to obtain a conductor wire core; s2, extrusion of an insulating layer: mixing fluororubber, epichlorohydrin rubber, nano-silica and a flame retardant, and extruding the mixture at 70-90 DEG C by a twin-screw extruder to coat the conductor layer; s3, extruding a sheath layer: mixing the raw materials, and coating the raw materials outside the insulating layer at 60-85 DEG C by a single screw extruder; s4, irradiation crosslinking: carrying out electron beam irradiation on the coated cable; and S5, cooling and rolling. The cable can be used in a highly corrosive environment, and has the advantage of avoiding premature failure of the sheath layer of the power cable in the highly corrosive environment.

The invention discloses a large-current-carrying-capacity copper core conductor flexible fire-resistant low-voltage cable, belongs to the technical field of flexible fire-resistant cables, is used for solving the technical problem that in the prior art, the current-carrying capacity, the flexibility, the mechanical property and the flame-retardant and fire-resistant performance of a flexible fire-resistant low-voltage cable need to be further improved, and specifically comprises a copper core conductor, a fire-resistant layer and an insulating layer, the insulating layer comprises the following components in parts by weight: 60-70 parts of silicone rubber, 40-50 parts of a polyurethane elastomer, 3-5 parts of an additive and 0.8-1.2 parts of a vulcanizing agent. According to the low-voltage cable, a polyurethane / silicone rubber composite system with the synergistic effect of the surface modified inorganic filler and the modified polysiloxane is coated outside a conductor structure wrapped by the folded slotted copper bars and the mica tape, and the low-voltage cable with large current-carrying capacity, excellent flexibility, relatively high mechanical property and flame-retardant and fire-resistant performance is prepared.

The present invention relates to an electrical cable (1), particularly well suited for the transport of low voltage energy, comprising at least one electrically insulating layer (3) surrounding at least one elongated electrically conductive element (2), wherein said insulating layer (3) is obtained from a thermoplastic polymer composition comprising a homophasic propylene polymer; and a heterophasic ethylene copolymer, present at a level of less than 40% by weight relative to the total weight of polymers in the thermoplastic polymer composition.

The present invention discloses a rubber composition, a processing method thereof, and rubber product reinforced with silica using the same. The rubber composition comprises a rubber matrix and essential components, wherein, based on 100 parts by weight of the rubber matrix, the rubber matrix comprises, a branched polyethylene with a content represented as A, in which 0<A≤100, and an EPM and an EPDM with a total content represented as B, in which 0≤B<100; and the essential components comprise 1-10 parts of a crosslinking agent and 15-80 parts of silica. The rubber composition can be used for producing high-voltage insulating sheath rubber, high-temperature resistant conveyor belt, waterproof coil, rubber particles for plastic track surface layer, rubber plug, rubber roller, inner tube, tire tread, tire sidewall, and inner rubber layer of air-conditioner hose.

A resin composition, containing: a component (A) being a base resin containing an ethylene-α-olefin random copolymer including an α-olefin component having 4 to 12 carbon atoms; a component (B) being a wet dispersant; a component (C) being an antioxidant; and a component (D) being a crosslinking aid, wherein the ethylene-α-olefin random copolymer including the α-olefin component having 4 to 12 carbon atoms has a crystallinity of 15 to 24%, and wherein a content of the component (B) is 2 to 10 parts by mass with respect to 100 parts by mass of a content of the component (A).

The invention relates to the field of nuclear cable manufacturing, in particular to a radiation-resistant cable for a nuclear power platform and a preparation method of the radiation-resistant cable. According to the nuclear cable, the five-layer structural design of conductor-insulation-shielding-polyimide film-sheath is adopted, the overlapping wrapping technology of the polyimide film is combined, and the comprehensive performance of the cable in the extreme environment of a nuclear power platform is comprehensively improved. The low-smoke halogen-free flame-retardant ethylene-propylene rubber is adopted as an insulating material, and through the cooperation of an EPDM / POE blending system and the ternary composite flame retardant, the insulating property is stable under the condition of ensuring radiation, and the flame retardant property is excellent. The sheath material is added with the intumescent flame retardant and the polysilazane modifier, so that the cable has no crack at the low temperature of-40 DEG C, the bending radius can be controlled to be less than 5 times of the outer diameter, and the cable is adaptive to the layout of a narrow cabin. Through the synergistic effect of material innovation and structural design, the balance of flame retardant property, mechanical property, radiation resistance, low temperature resistance, aging resistance and small-space applicability of the nuclear cable is realized.

A cable intended for use in a nuclear environment includes one or more conductors, a longitudinally applied corrugated shield surrounding the one or more conductors, and a cross- linked polyolefm jacket layer surrounding the longitudinally applied corrugated shield. The cable conducts about 5,000 volts to about 68,000 volts in use and is radiation resistant and heat resistant. The cable comprises a life span of about 40 years or more when measured in accordance with IEEE 323. Methods for making a cable and a nuclear reactor utilizing such a cable are also provided.

The utility model belongs to fire -resistant cable technical field, concretely is a kind of ceramic oxygen barrier fire -resistant cable, including protective outer cover, the outer surface sliding connection of protective outer cover has metal armoured cover, the inner wall fixedly connected with oxygen barrier sleeve of protective outer cover, the inner wall of oxygen barrier sleeve is fixedly connected with rock wool rope cover and ceramic silicon rubber fire -resistant cover respectively, the inner wall of rock wool rope cover and the outer surface of ceramic silicon rubber fire -resistant cover contact, the inside of ceramic silicon rubber fire -resistant cover is provided with two groups of conducting wire, specifically the utility model first through the sliding of protective outer cover cooperation metal armoured cover, can with cable outer surface protection, and can reduce the transmission of heat, oxygen barrier sleeve cooperation rock wool rope cover is used simultaneously, can prevent high temperature to cable interior transmission, and can prevent the further development of combustion, then through ceramic silicon rubber fire -resistant cover, can prevent flame continue to burn inwards, play good fireproofing and heat insulation effect, further can make cable whole body can stably use.

The application discloses a kind of high-temperature-resistant long-life cable material for charging pile cable and a preparation method thereof, and relates to the field of cable material.The cable material includes ethylene-propylene rubber, acrylate rubber, a compatibilizer, stearic acid, zinc oxide, paraffin oil, a vulcanizing agent, a vulcanization aid, nano filler supported antioxidant, and reinforcing filler.The application uses acrylate rubber and ethylene-propylene rubber blending to improve material plasticity and temperature resistance grade, and uses nano filler with reinforcing effect to disperse uniformly and stably in rubber matrix and has the characteristics of improving mechanical properties.The antioxidant is loaded on the nano filler to avoid surface migration of the antioxidant at high temperature, which significantly improves the high-temperature resistance and mechanical properties of the cable material, and can meet the challenges of cable material performance caused by the gradual shortening of charging time and the increasing of charging current of charging pile.

The invention discloses an online monitoring alarm network system based on a lightning protection environment, and relates to the technical field of lightning protection monitoring, and the system comprises a data collection module which is disposed at an offshore wind power plant and is used for collecting multi-dimensional data including salt mist concentration, wind speed, lightning parameters and lightning protection equipment state parameters; the data processing module is in communication connection with the data acquisition module and is used for receiving, fusing and analyzing the multi-dimensional data, performing scoring calculation by constructing a quantitative scoring model and endowing each dimensional parameter with a weight, and outputting a quantitative risk level according to a total score interval judgment mode; the early warning and linkage module is in communication connection with the data processing module and is used for executing graded early warning and linkage control based on the risk grades; the data processing module is further used for calculating the health state index of the SPD and dynamically predicting the remaining effective life of the SPD based on the health state index and the real-time environment parameters. The system has the functions of self-adaption to environment change and lightning protection monitoring and early warning.

Disclosed is a high-voltage winding (130), comprising a winding body (1310), a high-voltage coil (1320), a high-voltage insulating layer (1330), and an external insulating layer (1340). The winding body (1310) comprises a plurality of winding plates (1313, 2311, 1316); the plurality of winding plates (1313, 2311, 1316) are uniformly distributed in the circumferential direction of the winding body (1310); a wire is wound on the winding plates (1313, 2311, 1316) to form the high-voltage coil (1320); two ends of the wire form two external connections (D, X); the high-voltage insulating layer (1330) wraps the high-voltage coil (1320) and the winding body (1310); and the external insulating layer (1340) wraps the side walls of the external connections (D, X). Further disclosed is a dry-type transformer (10). The high-voltage winding (130) uses the external insulating layer (1340) to wrap the side walls of the external connections (D, X), thereby preventing the permeation of water vapor, ensuring the sealing effect, and effectively avoiding the problem of discharge of a wire outlet end.

The invention discloses an urban underground corrosion-resistant and wear-resistant power cable, and belongs to the technical field of cable production. The cable comprises an insulating layer, and raw materials of the insulating layer comprise the following components in percentage by mass: 45-49% of silane crosslinked polyethylene, 50-54% of fluororubber particles and 1-5% of boron nitride nano powder; the shielding layer is a silver-plated copper net filled with fluororubber; and a sheath layer; the sheath layer is prepared from the following raw materials in percentage by mass: 2-3% of molybdenum disulfide, 4-7% of tungsten carbide and the balance of fluororubber. According to the scheme, the raw material components used by the cable are designed, so that the wear resistance and the corrosion resistance of the power cable are synchronously improved.

The invention discloses a 105 DEG C environment-resistant cable meeting the UL2277 standard and a preparation method thereof, the cable comprises a conductor, an insulating layer and a sheath layer, the cable can be designed into a single-core or multi-core structure, the insulating layer takes ethylene-propylene-diene monomer and LDPE as base materials, and the base materials are matched with chemical method magnesium hydroxide and an organic composite flame retardant; the sheath layer uses CPE and EVA as composite base materials, and cooperates with magnesium hydroxide, aluminum hydroxide and antimony trioxide to construct a synergistic flame-retardant system. By optimizing the material formula and the structural design, the cable has excellent mechanical, flame-retardant, aging-resistant and oil-resistant properties in a dry environment of 105 DEG C, is suitable for fixed laying of a wind power generation tower drum and torsion laying of a cabin, is simple in preparation process and is suitable for large-scale production.

The application relates to the technical field of insulating materials, and discloses a preformed cable accessory insulating material, a preparation method thereof and a preformed cable accessory. The preformed cable accessory insulating material is composed of the following raw materials in parts by mass: 100 parts of ternary ethylene-propylene rubber, 40-70 parts of reinforcing filler, 20-40 parts of plasticizer, 1.5-3.5 parts of crosslinking agent, 1-3 parts of crosslinking aid, 1-3 parts of antioxidant, and 1-5 parts of processing aid. By introducing the antioxidant with a specific structure, the oxidation resistance and degradation resistance of the material in a complex environment such as high temperature, humidity and electric field are enhanced, the aging process of the insulating material is effectively delayed, and the material can better maintain the original performance in long-term use. Through the synergistic optimization of the formula components and process parameters, the dispersion uniformity of the material in the mixing process is improved, the pre-crosslinking risk is reduced, the vulcanization efficiency and quality stability are improved, so that the production process is more controllable, and the product quality is more consistent.

The invention relates to the technical field of sheathed cables, and particularly discloses a high-temperature-resistant fluororubber sheathed cable capable of being vulcanized and bonded and a preparation method of the high-temperature-resistant fluororubber sheathed cable. Fluorosilicon resin and vinyl silane are adopted for modifying a flexible microporous polytetrafluoroethylene film, vinyl silane is adopted for modifying ethylene propylene rubber, and the interlayer bonding performance of the cable is improved; then tetrafluoroethylene-propylene rubber and modified silicone rubber are introduced into 246 type fluororubber, so that the high-temperature mechanical property, modulus and creep resistance of a cable sheath layer are improved, and the cable which is good in interlayer bonding property and still has good performance in a high-temperature and high-pressure extreme environment is formed.