89results about How to "Applicable protection" patented technology

The invention provides an ultraviolet curing coating composition with high wear resistance and fingerprint resistance and a preparation method thereof. The composition is prepared from the following components in parts by weight: 30-50 parts of high-functionality acrylate resin, 5-15 parts of fluorine-modified acrylate oligomer, 5-20 parts of an acrylate monomer, 5-15 parts of nanoparticle dispersion liquid, 5-9 parts of a photoinitiator, 0.05-2 parts of an auxiliary agent and 30-50 parts of a solvent. Compared with the prior art, the steel wool of the prepared ultraviolet curing coating composition is excellent in wear resistance and has fingerprint resistance and hand sweat resistance; and the coating has high hardness, is suitable for surface protection of plastic base materials, has excellent comprehensive performance, and can be applied to the related fields of mobile phone plastic rear covers, mobile phone films and the like.

The invention discloses an extra-high voltage long-distance DC line protection algorithm based on new energy grid connection. The algorithm mainly comprises the following steps: obtaining electrical sampling data obtained after sampling of each electrode of the two sides of a protected DC transmission line, and carrying out initial judgment on practical operation state of the line in real time; according to the state obtained after initial judgment, starting an integral-form longitudinal impedance time domain protection algorithm; and when the DC transmission line drives time domain increment of the corresponding detected current above to be able to be measured effectively due to fault, starting a set longitudinal impedance algorithm and determining whether the line has an internal fault according to the time domain integral result of longitudinal impedance. Through a novel extra / ultrahigh-voltage DC transmission line unit protection algorithm, high-frequency harmonic interference hard to be resisted in an existing current differential protection algorithm configured to the DC transmission line can be eliminated effectively, influence due to ultra-long-distance line distribution parameters is eliminated, and meanwhile, setting time of tripping action is obviously reduced.

The invention relates to polyvinyl alcohol / sodium alginate medicine-loading hydrogel dressing having light-responsive bacteria resistance and a preparation method of the polyvinyl alcohol / sodium alginate medicine-loading hydrogel dressing, wherein a macromolecular medicine realizing fracturing under ultraviolet light is distributed inside the hydrogel dressing. The preparation method of the polyvinyl alcohol / sodium alginate medicine-loading hydrogel dressing comprises the following steps: grafting micromolecule antibiotic, namely, levofloxacin to polyethylene glycol macromolecular chains with amino groups at two ends through molecules with ultraviolet light response property, thus obtaining the macromolecular medicine realizing fracturing under ultraviolet light; and carrying out repeated freezing and thawing on a mixed solution of polyvinyl alcohol solution, sodium alginate solution and the macromolecular medicine realizing fracturing under ultraviolet light, thus obtaining the polyvinyl alcohol / sodium alginate medicine-loading hydrogel dressing having light-responsive bacteria resistance. The adopted raw materials have good biocompatibility, the obtained hydrogel dressing has certain mechanical property and has the ultraviolet-light-responsive antibacterial property, namely, the hydrogel dressing can realize controlled release of antibiotics under irradiation of 365nm ultraviolet light, and thus the polyvinyl alcohol / sodium alginate medicine-loading hydrogel dressing is suitable for protecting and treating the wound surface.

The invention relates to the field of anticorrosive coatings, in particular to a solvent-free epoxy heavy-duty anticorrosive coating and a preparation method thereof. The solvent-free epoxy heavy-dutyanticorrosive coating comprises a component A and a component B; the component A comprises 100 parts of a solvent-free epoxy resin, 8-16 parts of a active diluent, 70-115 parts of a pigment and filler, 1.5-2.6 parts of a coupling agent, 1.5-2.6 parts of a dispersing agent, and 0.8-1.3 parts of a thixotropic agent; and the component B is a curing agent, and the mass ratio of the component B to theliquid epoxy resin in the component A is (1.5:1)-(3.5:1). The solid content of the heavy-duty anticorrosive coating is 98% or more, and the coating is an environment-friendly coating; the coating contains only a very small amount of a volatile organic solvent, so that only a small amount of shrinkage cavities and pinholes are formed after the coating is cured, and the compactness of the coating effectively increases the barrier properties and permeability resistance of an anticorrosive coating layer.

The invention discloses an inorganic graphene antibacterial alga-resistant zinc-rich anticorrosive coating and a preparation method thereof. The inorganic graphene antibacterial alga-resistant zinc-rich anticorrosive coating comprises 30-50 wt% of a stable high-modulus silicate, 0.1-2 wt % of graphene, 40-69 wt% of zinc powder, 0.1-5 wt% of a modified composite antibacterial alga-resistant agent,and 0.1-3 wt% of a coating auxiliary agent, wherein the stable high-modulus silicate is prepared by carrying out a reaction of a silicate, a silane coupling agent and a silicone-acrylic emulsion, themodulus of the silicate is 4.5-7.0, the zinc powder is flake zinc powder and granular zinc powder, the modified composite antibacterial alga-resistant agent is prepared by modifying a composite antibacterial alga-resistant agent with a surface modifier, the surface modifier is an organic silane coupling agent, and the compound antibacterial alga-resistant agent is formed by loading an antibacterial alga-resistant agent on an inorganic porous carrier. By adding anticorrosive fillers such as graphene, the flake zinc powder and the granular zinc powder, and the composite antibacterial alga-resistant agent functional filler, a formed coating layer of the coating is dense, and has relatively few pores, and improvement of a service life of the anticorrosive coating is realized.

A semi-submersible wave absorbing wall suitable for offshore floating bodies comprises a floating box platform and a wave absorbing and breaking component arranged on the floating box platform. The wave absorbing and breaking component comprises a plurality of layers of wave absorbing modules, the wave absorbing modules on the upper and lower layers are fixedly supported through a support, each wave absorbing module comprises a base body and transverse sheet wave absorbing tiles arranged a wave facing face and a wave departing face of the base body, open holes are formed on each wave absorbing tile, the bottom of the floating box platform is connected at the seabed through an anchor chain system, an internally-arranged groove rail is arranged on the upper surface of the floating box platform, a pulley matched with the groove rail is arranged below the wave absorbing module on the downmost layer of the wave absorbing and breaking component and fixedly connected with the wave absorbing modules through a connecting rod, and the connecting rod is connected with a hydraulic cylinder piston rod of a hydraulic system. The semi-submersible wave absorbing wall is reasonable in structural arrangement, easy to manufacture, good in wave absorbing and breaking effect, capable of being used for detection and prewarning of sea state and especially suitable for protection of large offshore floating bodies.

The invention discloses a two-dimensional vibroswitch device for a windmill generator, which comprises a shell, a sliding sleeve, a support seat, a swinging rod, a sliding rod and a pushing rod, wherein the swinging rod swings in the sliding sleeve; the sliding rod is arranged below the swinging rod through a spring seat and driven by the swinging rod to move up and down in the sliding sleeve; the pushing rod is driven by the sliding rod to move up and down in the support seat; the pushing rod is fixed with two contact springs and moving permanent magnets; and the bottom of an inner cavity of the support seat is fixed with fixed permanent magnets and two fixed contact terminals provided with conducting strips. The vibroswitch device has the advantages of compact structure and convenient assembly and use, and can realize quick and accurate actions without being driven by a power supply, so that the damage of the wind mill generator due to excess vibration of a tower is avoided.

The invention discloses a preparation method of an epoxy-modified ultra-matte acrylic acid coating. The epoxy-modified ultra-matte acrylic acid coating is specifically prepared from epoxy-modified ultra-matte acrylic emulsion and color paste in proportion. The coating product provided by the invention has good storage stability, has excellent physical and mechanical properties, chemical resistance, salt spray resistance and light aging resistance after electrophoretic coating, and can pass an artificial accelerated aging test and an artificial accelerated salt spray test for thousands of hours. The coating is suitable for protecting and coating the surface of a workpiece with chemical resistance and ultralow gloss requirements.

The invention provides a preparation method of a novel sole. The method includes the following steps of: sole forming, sole sizing, cotton wool feeding and drying, and the method has simple steps, convenient operation and is easy for scale production. The invention also provides a novel sole prepared by using the method and the sole comprises a sole base material, the surface of which is further provided with a cotton wool layer thereon. The cotton wool layer is a flocking layer or flock spraying layer. The adopted flocking layer or flock spraying layer improves the surface of sole with original coarse outer surface and leads the surface to be supple and smooth. The sole causes small abrasion to the floor and is especially applicable to the protection of indoor costly floor. The sole has beautiful appearance, strong stereo perception, wear resistance and skid resistance and comfortable foot feeling. The flocking layer or flock spraying layer is not combustible but ageing-resistant, washing-resistant, color-fast and beneficial to keeping shoes for long. The novel sole can be made into various styles of hide shoes, leather shoes, sandals, slippers, and the like.

The invention discloses composite CuNiIn powder, a preparation method and an application thereof. The composite CuNiIn powder comprises a dispersion strengthening phase and a self-lubricating phase. The preparation method comprises the following steps that ball milling and mixing on In powder, nickel-coated molybdenum disulfide powder and A12O3 dispersion strengthening Cu powder are carried out soas to prepare mixed raw materials; a spray drying granulator is adopted to carry out centrifugal atomization granulation on the mixed raw materials to prepare dried granules; and vacuum sintering iscarried out on the dried particles, and then the dried particles are crushed and screened to obtain the composite CuNiIn powder. The composite CuNiIn powder can be prepared into a composite CuNiIn coating containing the dispersion strengthening phase and the self-lubricating phase by adopting a thermal spraying method. The distribution state of the self-lubricating phase is changed, the strength and the toughness of the coating are improved, the generation of micro-cracks of the coating is effectively avoided, the self-lubricating service life of the coating is prolonged, and the composite CuNiIn powder has a good application value in the industries of aviation engines, gas turbines and the like.

The invention discloses an LED lamp heat-radiating device which comprises a heat conducting unit and a heat absorbing unit, wherein the heat conducting unit is fixedly connected with an LED lamp and is convenient for conducting heat generated by the LED lamp; and the heat absorbing unit is fixedly connected with the heat conducting unit and used for absorbing heat conducted from the heat conducting unit when the temperature of the LED lamp rises to reach a specific value. According to the LED lamp heat-radiating device, the heat radiating effect of the LED lamp can be improved and the heat radiating efficiency of the LED lamp is increased.

The invention discloses a special-shaped three-dimensional earthquake isolation supporting base. The special-shaped three-dimensional earthquake isolation supporting base is arranged between an upper-part structure and a lower-part structure which need earthquake isolation, and comprises a bottom board, at least two special-shaped supporting base bodies, upper-part connecting corner blocks, lower-part connecting corner blocks, a horizontal supporting base and a sliding face board; the bottom board is connected with a lower-part structure; the special-shaped supporting base bodies are composedof first elastic blocks clamped by upper sealing boards and lower sealing boards in parallel with one another; the upper-part connecting corner blocks and the lower-part connecting corner blocks are provided with horizontal bottom surfaces and oblique top surfaces, and when the upper-part connecting corner blocks are arranged invertedly and the lower-part connecting corner blocks are overlaid withthe upper-part connecting corner blocks, the bottom surfaces are parallel; the horizontal supporting base is composed of a second elastic block clamped by an upper board and a lower board; after theupper-part connecting corner blocks are arranged invertedly and sequentially connected with the special-shaped supporting base bodies and the lower-part connecting corner blocks, the upper-part connecting corner blocks are fixedly supported on the bottom board in a central symmetrically distributed mode, and the sliding face board is fixed to the bottom surfaces of the upper-part connecting cornerblocks; and the horizontal supporting base is supported on the sliding face board in a mode capable of rotating round a central symmetric line, the contact surface of the horizontal supporting base and the sliding face plate adopts a friction material, and the upper board of the horizontal supporting base is connected with an upper-part structure. The special-shaped three-dimensional earthquake isolation supporting base can be synchronously isolate horizontal and vertical earthquake, and can be used for vertical earthquake isolation of buildings with comparatively large self-weight.

The invention provides an insulating rubber tape and a preparation method thereof. The insulating rubber tape comprises a substrate, a first dielectric layer and a second dielectric layer which are stacked sequentially, wherein the first dielectric layer has a negative dielectric constant, the second dielectric layer has a positive dielectric constant, and the absolute value of the dielectric constant of the first dielectric layer is larger than the dielectric constant of the second dielectric layer. The preparation method of the insulating rubber tape comprises the following steps: firstly, components of the first dielectric layer are melted, mixed and calendered on the substrate for semi-curing, then components of the second dielectric layer are melted, mixed and calendered on the firstdielectric layer, and the insulating rubber tape is obtained. The insulating rubber tape has higher dielectric constant, penetration resistance strength and volume resistivity and lower dielectric loss and is particularly applicable to protection of high-voltage alternating-current circuits.

The internal lining comprises: inner side wall, outer side wall. The inner side wall is connected to the outer side wall through a shielding plate; the upper edge of the outer side wall is connected to a flange; the edge of side wall is connected to an extended part; said extended part comprises the part extending to upper direction of the outer side wall, the lower edge of the outer side wall, and the lower edge of the inner side wall.

The invention discloses an anti-static cable sheath material. The anti-static cable sheath material is composed of, by weight, 2-4 parts of erucyl amide, 570-600 parts of polyvinyl chloride, 17-20 parts of fulvic acid, 0.06-0.1 part of sodium iodide, 40-50 parts of isopropyl alcohol, 70-100 parts of saponite, 2-3 parts of sp80, 20-30 parts of lactide, 0.2-0.25 part of L-arginine, 4-6 parts of polyving akohol, 1.6-2 parts of salicylanilide, 3-5 parts of sodium potassium silicate, 2-4 parts of 3-phenoxy-1-propanol, 10-18 parts of cresyl diphenyl phosphate and 2-4 parts of calcium palmitate. According to the cable sheath material, the components such as the erucyl amide and the salicylanilide are added, good anti-static property is achieved, the anti-static cable sheath material is suitable for protection of wires of electronic products such as household appliances and instruments, and the safety is high.

The invention discloses an explosion-proof wiring device comprising a base and an upper cover. A wiring cavity is formed between the base and the upper cover. At least one threading pipe is fixed on the side of the base. The wiring cavity is internally provided with a wiring part. Each threading pipe includes a lead cylinder, a different-diameter through hole is arranged in the axis of the lead cylinder, one end of the different-diameter through hole is provided with internal threads, a sealing pad is embedded in the different-diameter through hole, a compression nut in threaded connection with an internal threaded hole is arranged in the internal threaded hole, the lead cylinder is further provided with external threads, a locking bolt is arranged on the external threads, and a bulge is arranged on the lead cylinder. The wiring part comprises a wiring part seat and at least one wiring plate, and each wiring plate includes a conducting plate on which at least two threading openings and at least one compression bolt are arranged. The explosion-proof wiring device has a simple structure, is applicable to explosion-proof connection of cables within a certain range of wire diameter, and has the characteristics of good sealing and flameproof performances, high cable wiring head connection speed and high wire connector connection stability.

The invention provides a vibration attenuation buffer device for a car power assembly. The device comprises a mounting base, a pressure bearing shaft, a first vibration attenuation part and a second vibration attenuation part, the mounting base is provided with a buffer cavity, the interior of the buffer cavity is provided with a vibration attenuation table with a vibration attenuation cavity, anda buffer part used for buffering instant impact borne by the vibration attenuation table, the lower end of the pressure bearing shaft is located in the vibration attenuation cavity, the upper end extends out of the mounting base, the extending-in part of the pressure bearing shaft is provided with an abut-joint plate, the vibration attenuation cavity is divided into a first cavity and a second cavity, the first vibration attenuation part is located in the first cavity and sleeves the periphery of the pressure bearing shaft, and the second vibration attenuation part is located in the second cavity. When the power assembly generates vibration, rigidity and damping are generated on positions of the first vibration attenuation part and the second vibration attenuation part, compared with theprior art, the power assembly is subjected to vibration attenuation and buffer at the same time, relative to the first vibration attenuation part, due to the fact that the movable rigidity of the second vibration attenuation part is low, the whole vibration attenuation frequency band range of the first vibration attenuation part and the second vibration attenuation part can be widened, and the vibration attenuation effect can be improved.

The invention discloses a method for reducing volatilization of a paint film pigment under a high temperature vacuum environment, which is to plate an oxide ceramic coating on the surface of a prepared pigment paint film. The specific process steps are as follows: step I, preparation of the pigment paint film: mixing a pigment with an organic silicon coating, and forming a paint film on the surface of a polyimide film in the screen printing manner; and step II, preparation of the oxide ceramic coating through plating: preparing the oxide ceramic coating on the surface of the paint film prepared in the step I, with adoption of the magnetron sputtering method. Through plating the oxide ceramic coating on the surface of the paint film, the volatilization of the paint film pigment under the high temperature vacuum environment can be obviously reduced, and the application of the paint film pigment is developed.

The invention discloses a thermal sensitive ceramic material which comprises the following components in parts by mole: 86.2-87.2 parts of BaCO3, 3.5-4.5 parts of SrCO3, 3.8-4.8 parts of PbO, 5.5-6.5 parts of CaCO3, 101-101.5 parts of TiO2, 0.1-0.15 parts of Y2O3, 0.03-0.04 part of Sb2O3, 0.06-0.08 part of Mn(NO3)2 as well as a sintered liquid phase additive. The invention also discloses a high-voltage-resistant PTC (positive temperature coefficient) thermistor prepared by using the thermal sensitive ceramic material and a preparation method of the PTC thermistor. The method comprises the following steps: mixing the components according to the designed ratio, ball milling by a wet method, pre-sintering, ball milling by a secondary wet method, pelleting and tabletting, sintering and post processing, thereby preparing the PTC thermistor. Through various tests, the PTC thermistor can resist a 10 / 700 mu S lightening stroke wave of 4kV, and can be applied to systems such as large instruments, devices, electric power.

The invention belongs to the field of chemical industry, is mainly applied to coating industry, is especially suitable for protection for steel and particularly relates to an aluminum molybdate rustproofing pigment and a preparation method thereof. The aluminum molybdate rustproofing pigment is prepared from the following raw materials in weight percentage: 20-35 percent of sodium molybdate, 10-15 percent of aluminum nitrate, 5-7 percent of hydrated phosphomolybdic acid, 45-60 percent of zinc oxide and 0.5-1.5 percent of PH regulator. The aluminum molybdate rustproofing pigment and the preparation method thereof have the characteristics of no toxin, high efficiency and environmental protection. Moreover, the aluminum molybdate rustproofing pigment has the characteristics of good antiseptic property and long-acting rustproofing performance.

The invention discloses a low-voltage ESD protection device and a manufacturing method thereof, which effectively improve the utilization rate of a chip and reduce the cost of the chip. The cell sizeis not increased, the chip area occupation caused by keeping the metal spacing is reduced, the cell size can be reduced by about 20%, and the current discharge capacity is at least improved by 50%; flyback current of the SCR can be reduced to 1.5 V by adopting a forward bias diode string, and ultralow trigger voltage ESD protection devices with voltage classes of 1.2V, 1.8V, 2V, 2.5V, 2.8V, 3.3V and the like can be realized by adjusting the number of forward bias diodes; by optimizing the device size and the ultralow residual voltage, the device is suitable for ultra-high-speed signal protection of a low-voltage system, meanwhile, bidirectional ESD protection can be achieved through layout optimization, and a solution is provided for bidirectional protection of ultra-high-speed signals ofthe low-voltage system.

The invention discloses an anti-explosion junction device good for preventing electrified wrong opening. The anti-explosion junction device good for preventing electrified wrong opening comprises a base and an upper cover, wherein the base is also provided with a conduit; a wiring part is also arranged in a wiring cavity; the wiring part comprises a wire incoming side, a wire outgoing side and a conducting strip; contacts are arranged on both the wire incoming side and the wire outgoing side; a guide rod and a screw rod are fixed on the upper cover; the conducting strip comprises an insulating base body and a metal strip; the screw rod is also provided with a locking nut; a sealing ring is also arranged between the locking nut and the upper cover; the conduit comprises a wire leading barrel, a differential-diameter through hole in the wire leading barrel, an inner screw thread arranged on one end of the differential-diameter through hole, a sealing pad, a compressing nut, and through holes on both the sealing pad and the compressing nut; the wire leading barrel is also provided with an outer screw thread; a locking bolt is arranged on the outer screw thread; the wire leading barrel is also provided with a bump for protruding with respect to the outer wall. The anti-explosion junction device good for preventing electrified wrong opening has good anti-explosion performance, fast connecting speed of cable joints and good connection stability of the wire joints, and is suitable for anti-explosion connection of cables within a certain wire diameter range.

The invention relates to phosphate-modified waterborne epoxy ester resin and an anti-corrosive primer thereof, and preparation methods of the phosphate-modified waterborne epoxy ester resin and the anti-corrosive primer. A scheme provided by the invention comprises the phosphate-modified waterborne epoxy ester resin and the preparation method thereof. The waterborne epoxy ester anti-rust primer with excellent anti-rust performance is prepared by taking the phosphate-modified waterborne epoxy ester resin as a base material and cooperatively using a non-toxic and efficient anti-rust pigment. Compared with the prior art, epoxy resin and phosphoric acid are esterified to synthesize epoxy phosphate, then the epoxy phosphate and acrylate monomers are subjected to graft copolymerization, so the phosphate modified waterborne epoxy ester resin with excellent performance is prepared, and the salt spray resistance of the anti-rust primer is further improved.

The invention discloses an anti-explosion wiring device capable of guaranteeing explosion suppression performance. The anti-explosion wiring device capable of guaranteeing the explosion suppression performance comprises a base and an upper cover, a wiring cavity is formed between the base and the upper cover, at least one wiring conduit is further fixed on the side face of the base, each wiring conduit comprises a wire leading barrel, a reducing through hole is formed in the axis of each wire leading barrel, internal threads are arranged at one end of each reducing through hole, a sealing gasket is embedded in each reducing through hole, hold-down nuts in threaded connection with internal thread holes are arranged in the internal thread holes, external threads are also arranged on each wire leading barrel, locking bolts are arranged on the external threads, and the wire leading barrels are also provided with protrusions. The anti-explosion wiring device capable of guaranteeing the explosion suppression performance has the advantages that the structure is simple, the anti-explosion wiring device is suitable for anti-explosion connection of wire cables in a certain wire diameter range and has good sealing and explosion suppression performance, the connection speed of connector lugs of the wire cables is high, and connection stability of the connector lugs is good.

The invention discloses low-radiation hollow glass with the ultraviolet blocking effect. The glass includes two glass substrates, and the two glass substrates are matched to form a hollow structure. The surface of at least one glass substrate is provided with a low-radiation composite functional film layer with the ultraviolet blocking effect. Compared with an existing ultraviolet blocking product, by absorbing and blocking ultraviolet rays, the hollow glass can achieve ultraviolet blocking through ultraviolet reflection, and the ultraviolet reflection intensity is greatly improved. Moreover,the hollow glass easily achieves large-area deposition, ultraviolet blocking is achieved, meanwhile the glass has a good thermal insulation effect. Compared with a PVB scheme and a double- film product, the product is lower in cost, suitable for ultraviolet protection of artworks and photography, and suitable for use in some airports and places requiring a large amount of ultraviolet reflection.

The invention discloses self-service equipment with an infrared temperature measuring module; the self-service equipment comprises an operation groove; and a first ultraviolet lamp panel, a second ultraviolet lamp panel and the infrared temperature measuring module are installed at the top of the inner side of the operation groove. The infrared temperature measuring module detects the forehead temperature of a user in an infrared temperature measuring mode, the infrared temperature measuring module comprises an infrared temperature measuring device, and a hinge groove is formed in a shell of the infrared temperature measuring device. One end of an inserting rod is installed in the hinge groove, a hinge cylinder is fixed to the end of the inserting rod, the hinge cylinder is internally hollow, and the two ends of the hinge cylinder are assembled with the shell of the infrared temperature measuring device respectively; an annular groove is formed in the inserting rod, the inserting rod is inserted into an inserting hole, and the annular groove and one end of a sliding clamping block are assembled in a clamped mode; the sliding clamping block can slide in a clamping block sliding groove, the end, away from the inserting rod, of the clamping block sliding groove is fixedly assembled with one end of an inserting spring, the other end of the inserting spring is arranged at one end ofan inserting output shaft in a sleeving mode, an inserting pin is installed at the end of the inserting output shaft, and the inserting pin is installed in a spiral gap of the inserting spring.

The invention discloses a lightning arrester insulating protection sleeve, which is prepared from the following raw materials by weight: 80-100 parts of a natural rubber, 36-45 parts of modified carbon black, 4-5 parts of zinc oxide, 1.6-2 parts of stearic acid, 1.2-2.4 parts of sulfur, 0.5-1 part of a vulcanization accelerator and 0.8-1 part of an anti-aging agent. The invention further disclosesa preparation method of the insulating protection sleeve. According to the invention, the natural rubber is used as the matrix material of the protection sleeve and is processed, so that the mechanical property and the aging resistance of the natural rubber can be effectively improved; the rubber is reinforced by adopting the modified carbon black, so that the mechanical property of the protection sleeve can be improved; and by controlling the ratio of the sulfur to the vulcanization accelerator, the fatigue life of the protection sleeve is prolonged, so that the insulating protection sleevewith good mechanical property and strong aging resistance is obtained, is suitable for protecting lightning arresters, can improve the use safety of lightning arresters, has long service life, and canimprove the use value.