11759 results about "Lubricant" patented technology

The invention relates to the technical field of powder metallurgy forming, and discloses a compressor valve plate forming device for powder metallurgy and a forming method thereof.The forming device comprises a lower die body, a guide support is fixed to the lower die body, an upper die body is slidably connected to the guide support, and a servo hydraulic cylinder is fixed to the top of the guide support; a servo hydraulic cylinder is arranged on the lower die body, the telescopic end of the servo hydraulic cylinder is fixedly connected with the upper die body, a forming groove is formed in the lower die body, a forming head is arranged on the upper die body, a feeding box is arranged on the lower die body, and a push rod assembly used for adjusting the working position of the feeding box is fixed to one end of the lower die body. The metal powder can be uniformly distributed in the forming groove, so that the thickness of a formed workpiece is uniform, a lubricant can be conveniently and quantitatively sprayed into the metal powder, the flowing property of the metal powder is improved, and the machining quality of the workpiece is improved.

A lubrication system for a gearbox assembly for a turbine engine. The gearbox assembly includes a gear assembly including one or more gears and one or more bearings. The lubrication system includes a sump. The sump is a primary reservoir that has a first lubricant level. The lubrication system also includes a secondary reservoir in the gearbox assembly. The secondary reservoir has a second lubricant level that is greater than the first lubricant level. A plurality of drain ports includes a first drain port and a second drain port. The lubrication system fills the secondary reservoir with lubricant between the first lubricant level and the second lubricant level and a portion of the lubricant drains though the second drain port. The one or more gears collects the lubricant to supply the lubricant from the secondary reservoir to the one or more gears or to the one or more bearings.

Systems and methods which provide control of lubricant delivery with respect to chainsaws using a lubricant flow shutoff valve controlled in correspondence to an operational state of the chainsaw. A chainsaw lubricant delivery control system includes a lubricant flow shutoff valve and a chainsaw operation-based valve controller operable cooperatively to provide control of lubricant delivery to the cutting chain and guide bar assembly of a chainsaw. The chainsaw operation-based valve controller is coupled to an operationally active element of the chainsaw wherein the chainsaw operation-based valve controller may control the lubricant flow shutoff valve between an open position and a closed position responsive to detecting a particular state of the operationally active element corresponding to an operational state of the chainsaw.

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.

The invention relates to the technical field of cable manufacturing, in particular to a wire drawing machine for cable manufacturing and a using method thereof.The wire drawing machine for cable manufacturing comprises a wire drawing machine body, a first stretching rotating roller, a second stretching rotating roller, a fixing box and a mold frame, and a control box body is fixedly installed on one side of the top of the wire drawing machine body through bolts; a first stretching rotating roller and a second stretching rotating roller are rotationally connected to the two ends of one side of the bottom of the control box body on the wire drawing machine body, a mold frame is fixedly installed at the center between the first stretching rotating roller and the second stretching rotating roller on the wire drawing machine body through bolts, and a plurality of wire drawing molds are installed in the mold frame in a staggered mode through bolts. The cleaning brush on the base ring cleans cable wires through rotating connection of the friction rolling wheels, cleaned metal powder and wire drawing lubricating liquid containing impurities enter the collecting box to be collected, adsorption cleaning is conducted through the movable magnet, the cleanliness of the lubricating liquid is improved, the subsequent processing quality of the cable wires is improved, and the service life of the cable wires is prolonged. The practical value is high.

The invention relates to the technical field of polyamide materials, in particular to a high-heat-resistance bio-based polyamide material and a preparation method thereof, and the high-heat-resistance bio-based polyamide material comprises the following raw materials in parts by weight: 45-50 parts of PA56, 7-11 parts of a balance multi-effect agent doped with a filler modifier, 5-8 parts of a flame retardant, 4-7 parts of a silane coupling agent, 3-5 parts of an antioxidant and 2-4 parts of a lubricant. According to the bio-based polyamide material, the bio-based PA56 is adopted as a matrix, meanwhile, the flame retardant, the silane coupling agent, the antioxidant and the lubricant are added to serve as functional auxiliaries, the balance multi-effect agent doped with the filler modifier is added to be matched with the stable supplement agent, and the raw materials are blended, coordinated and jointly synergized, so that the flame retardant property of the bio-based polyamide material is improved, and the flame retardant property of the bio-based polyamide material is improved. The obtained bio-based polyamide material is harmoniously improved in dielectric loss, flame retardance and wear resistance, and meanwhile, the product is remarkable in weather resistance and high heat stability resistance.

A gearbox assembly includes a gearbox and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3, inclusive of the endpoints. The lubricant extraction volume ratio defined by: VG / VGB. VG is a gutter volume of the gutter and VGB is a gearbox volume. A gas turbine engine includes the gearbox assembly. The gas turbine engine includes an electric power system including at least one electric machine. The electric power system includes a plurality of power converters and a plurality of power distribution management units. At least two of the plurality of power converters or the plurality of power distribution management units are integrated together in a single housing.

The invention discloses an extrusion production process for an aluminum alloy multi-cavity profile. The extrusion production process comprises the following steps that S1, raw materials are prepared; s2, designing and manufacturing a mold; s3, pretreatment before extrusion; s4, extrusion forming; s5, cooling treatment; s6, straightening and finishing; s7, aging treatment; and S8, detecting and packaging. According to the invention, the friction is further reduced by adopting a special high-temperature lubricant and an ultrasonic vibration device in the pre-extrusion pretreatment, the precise control is realized by arranging real-time monitoring and feedback systems such as a laser range finder and an infrared thermometer in the extrusion forming process, and the cooling treatment is realized by automatically adjusting parameters by adding a corrosion inhibitor and arranging a sensor, so that the production efficiency is improved. The cooling quality of the profile is ensured; laser scanning and electrolytic polishing technologies are adopted for straightening and finishing, the straightening precision and the surface quality are improved, a circulating hot air system and a segmented aging mode are adopted for aging treatment, and the aging effect is improved.

The invention relates to an anti-static PP composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The antistatic PP composite material is prepared from the following components in parts by weight: 60 to 80 parts of PP resin, 10 to 20 parts of glass fiber, 0.1 to 0.5 part of a lubricant, 0.3 to 2 parts of a modified antistatic agent, 0.5 to 1.5 parts of a modified flame retardant and 0.2 to 0.8 part of an antioxidant, in the modified antistatic agent, an alkanolamide bond intermediate forms a conductive film, so that the resistivity is reduced, static dissipation is promoted, the material is endowed with lubricity, and the generation of static electricity is reduced; in addition, maleic anhydride forms a conductive layer and cooperates with quaternary ammonium salt to enhance hydrophilicity and accelerate charge transfer; a piperazine pyrophosphate derivative in the modified flame retardant and a phosphorus-nitrogen flame retardant cooperate to construct an expanded carbon layer to isolate a fire source and oxygen, so that the service life is prolonged; the anti-static PP composite material prepared by the invention not only has a good anti-static effect, but also has excellent flame-retardant and tensile properties.

The invention relates to the technical field of current collectors, in particular to a flame-retardant composite current collector and a preparation method thereof.The flame-retardant composite current collector is composed of a base film layer, metal film layers deposited on the two faces of the base film layer and flame-retardant layers formed by curing flame-retardant coatings and coated on the surfaces of the metal film layers; the preparation method comprises the following steps: S1, mixing the modified polypropylene resin, the reinforcing component, the antioxidant, the lubricant, the coupling agent and the compatilizer to obtain a mixture; s2, carrying out melt extrusion and tape casting on the mixture, and stretching through a two-way stretching process to form a base film layer; s3, metal film layers are deposited on the two faces of the base film layer, and hot press molding is conducted; s4, coating a flame-retardant coating, drying and curing to obtain the flame-retardant composite current collector, the prepared flame-retardant composite current collector has excellent flame retardance, excellent mechanical property and thermal aging resistance and high peel strength, the binding force of the metal film layer and the base film layer is firm, and the quality and safety of the composite current collector are effectively improved.

A lubrication system for a turbine engine having a longitudinal centerline axis and one or more rotating components. The lubrication system includes a primary lubrication system that supplies lubricant to the one or more rotating components during normal operation of the turbine engine. The lubrication system also includes an auxiliary lubrication system. The auxiliary lubrication system includes an auxiliary reservoir and a lubricant dispersion device. The auxiliary reservoir stores the lubricant therein. The lubricant dispersion device rotates about the longitudinal centerline axis. The lubricant dispersion device collects the lubricant in the auxiliary reservoir and disperses the lubricant to the one or more rotating components as the lubricant dispersion device rotates.

An electronic apparatus includes a first chassis, a second chassis, a hinge device having a movable portion applied with a lubricant and connecting the first chassis and the second chassis relatively rotatably, a spine part made of a thermal conductive material, a first thermal conductive member which is provided on an inner surface of the first chassis and contacts the spine part at a position not to overlap with the movable portion at a second posture, and a second thermal conductive member which is provided on an inner surface of the second chassis and contacts the spine part at a position not to overlap with the movable portion at the second posture.

The invention belongs to the technical field of engineering plastics, and particularly relates to a high-flame-retardant composite material and a preparation method thereof. The composite material comprises the following components: long-carbon-chain semi-aromatic nylon, a fiber reinforced filler, a flexibilizer, alkyl aluminum phosphinate, nano montmorillonite, a zinc ion ionomer, a coupling agent, a lubricant and an antioxidant. Alkyl aluminum phosphinate is used as a main flame retardant, and nano-montmorillonite and a zinc ion ionomer are used as auxiliary flame retardants. The nano-scale montmorillonite has certain adsorption performance, and can prevent the alkyl aluminum phosphinate flame retardant from being separated out in the processing process. The zinc ion ionomer is easier to disperse in a long-carbon-chain semi-aromatic nylon resin matrix relative to alkyl aluminum phosphinate and nano-montmorillonite, and ion groups contained in the zinc ion ionomer can generate an ionic crosslinking effect with ions in alkyl aluminum phosphinate and nano-montmorillonite, so that the mechanical property and the thermal stability of the composite material are improved; and moreover, the melt viscosity is improved, and the molten drop phenomenon during combustion is prevented.

The invention relates to a high-performance composite board prepared from waste wind power blades and a preparation method of the high-performance composite board. The high-performance composite board contains a large amount of waste wind power blade powder and waste wind power blade degraded glass fibers, so that the manufacturing cost of the high-performance composite board can be reduced; in addition, powder made of waste wind power blades and regenerated glass fibers obtained through a chemical degradation method can be recycled, resource utilization of the retired wind power blades is achieved, and the resource utilization problem of the retired wind power blades is effectively solved. Besides, the coupling effect of the waste wind power blade powder and the waste wind power blade degraded glass fiber with the thermoplastic resin is good, and under the synergistic effect of the compatilizer, the wood flour, the filler, the lubricant and other materials, the mixing and stirring effect can be improved, and the service life of the material is prolonged. Waste wind power blade powder and waste wind power blade degraded glass fibers can be uniformly dispersed in the high-performance composite board, and the physical properties of tensile resistance, bending resistance and compression resistance of the composite board can be improved.

A gearbox assembly includes a gearbox and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3, inclusive of the endpoints. The lubricant extraction volume ratio is defined byVGVGB.VG is a gutter volume of the gutter and VGB is a gearbox volume of the gearbox. A gas turbine engine includes the gearbox assembly and a lubrication system. The lubrication system includes a tank that stores a lubricant therein, one or more lubricant pumps for generating a flow of lubricant from the tank to the gearbox assembly, and a flow rate control valve. The flow rate control valve has a flow inlet and a flow outlet and defines a variable throughput from the flow inlet to the flow outlet for controlling a flowrate of the lubricant to the gearbox assembly.

The invention provides a marine engine lubricating oil system fault diagnosis method and system based on transfer learning from a simulation domain to a real domain, and the method comprises the steps: carrying out the fault simulation of different working conditions based on a built marine engine lubricating oil system simulation model, and obtaining a simulation fault signal response; acquiring real domain fault data of different working conditions of an engine lubricating oil system based on an engine experiment platform; a feature fusion structure based on an encoder-decoder is adopted to obtain simulation domain fault data; an engine lubricating oil system fault diagnosis model based on data migration and algorithm migration dual migration learning is obtained; and based on the engine lubricating oil fault diagnosis model, performing real-time fault diagnosis on the marine engine lubricating oil system to obtain a diagnosis result. According to the method, transfer learning from simulation domain fault features to real domain fault features is realized, so that the problems of high construction cost and insufficient generalization performance of a diagnosis model are solved.

An isothermal near-net forming method of a TC4 titanium alloy aeroengine blisk comprises the following steps that (1) the surface of a TC4 titanium alloy bar is coated with a glass lubricant, and the TC4 titanium alloy bar is heated to T beta-(30-80) DEG C; 2) coating a glass lubricant on the pre-forging die and heating the pre-forging die to T beta-(30-80) DEG C; (3) the bar is loaded into a pre-forging die to be forged into an intermediate blank, at least one heating number of forging is carried out, the strain rate is smaller than or equal to 0.01 s <-1 >, and the deformation amount is 60-70%; after forging is completed, the intermediate blank is water-cooled to the room temperature; (4) the intermediate blank is heated to T beta-(30-80) DEG C; 5) coating a glass lubricant on a finish forging forming die and heating to T beta-(30-80) DEG C; the method comprises the following steps of (1) carrying out primary forging on an intermediate blank, (2) carrying out secondary forging on the intermediate blank, (3) carrying out secondary forging on the intermediate blank, (4) carrying out secondary forging on the intermediate blank, (5) carrying out secondary forging on the intermediate blank, (6) loading the intermediate blank into a final forging forming die, pressing the intermediate blank into a blisk forge piece, carrying out at least one-heating-number forging, carrying out water cooling on the blisk forge piece to room temperature, (7) carrying out solution treatment on the blisk forge piece and carrying out water cooling to room temperature, and (8) carrying out aging treatment on the blisk forge piece and carrying out air cooling to room temperature.

The invention relates to the technical field of particle analysis, in particular to a cyst particle analysis system based on an AI algorithm, and the system comprises a particle image screening module, a boundary feature module, a structure deduction module, a particle recognition module and a performance analysis module. According to the method, the gray contrast and edge change rate analysis is carried out on an encapsulated lubricant image frame sequence in a liquid or semi-solid state to realize accurate positioning of a particle target area, an edge angle continuous change slope sequence is utilized to determine a particle structure boundary sudden change position, and the particle structure edge is deduced according to a boundary trend continuous behavior. The method comprises the following steps: accurately establishing a closed structure path, identifying an adhesion region, carrying out decoupling division on particles by using included angle range and direction consistency indexes, determining the boundary contour of the particles, rapidly and accurately marking a structure dissimilatory aggregation region through the area pixel number and gray gradient characteristics of a structure unit, and improving the particle structure identification precision. And the misjudgment risk caused by particle overlapping and adhesion is reduced.

The invention discloses a method for synchronously reducing hysteresis loss and eddy-current loss of a FeSiAl magnetic powder core, which comprises the following steps: preparing a salt solution of metal M which is low-melting-point metal with atomic radius unequal to that of Al atoms and can form a replacement solid solution with Al; adding the salt solution into the FeSiAl magnetic powder core, drying to obtain an insulated and coated magnetic powder core, and then adding a binder and a lubricant to prepare magnetic powder to be formed; and performing compression molding on the to-be-molded magnetic powder, and performing heat treatment to obtain the magnetic powder core. The low-melting-point M atoms are diffused into the FeSiAl matrix and occupy Al vacancies, lattice distortion can be reduced in the annealing process, and therefore coercive force and magnetic hysteresis loss are reduced; more importantly, after the FeSiAl is doped with the M atoms, the resistivity of the matrix is increased, eddy-current loss in the particles can be effectively inhibited, meanwhile, the Al2O3 coating layer generated through in-situ oxidation can effectively isolate the eddy-current loss among the particles, and therefore the magnetic hysteresis loss and the eddy-current loss are synchronously reduced through the method.

We provide a lubricating oil filtering and cooling device for a gearbox of a wind turbine generator. [Solution] The cooling assembly includes a circulation box (100) to which an oil discharge pipe communicating with the oil discharge port of the gearbox is attached, an oil pump is attached at its uppermost end, and an oil supply pipe (103) communicating with the oil supply port of the gearbox is connected at its outlet end, a refrigeration pipe (201) and a guide pipe (202) attached within the circulation box, an inner box (203) fixedly connected within the circulation box, and an equalizing member (204) provided within the circulation box, wherein both ends of the guide pipe are respectively connected to the oil pump and the inner box, and the inside of the circulation box is filled with cooling liquid, a filter fixedly connected within the inner box, a cleaning member provided above the filter, and a drive member movably connected to the circulation box.

The invention relates to the technical field of high polymer materials, and particularly discloses a high-strength polypropylene composite material for a filter plate and a preparation method of the high-strength polypropylene composite material. The preparation method of the polypropylene composite material comprises the following steps: uniformly mixing polypropylene, polyimide, maleic anhydride grafted polypropylene, nylon 6, a maleic anhydride grafted styrene-butadiene-styrene copolymer, aminated calcium carbonate, modified glass fiber, an antioxidant and a lubricant according to a mass ratio of 100: (12-18): (2-5): (1-2): (3-5): (3-7): (6-10): (0.2-0.5): (0.1-0.3), carrying out melt blending, extruding, cooling, granulating, and carrying out extrusion molding to obtain the polypropylene composite material. Through the synergistic effect of the nano calcium carbonate and the glass fibers, the mechanical property of polypropylene is improved, all the raw materials are crosslinked to form a uniform network structure, more energy is absorbed when a matrix is impacted by external force, and it is guaranteed that the filter pressing plate is not damaged when deforming under the high-temperature and high-pressure conditions; the obtained polypropylene composite material is high in strength, good in heat resistance and excellent in comprehensive performance.

The invention provides a glass fiber reinforced nylon composite material and a preparation method thereof, and belongs to the technical field of high polymer materials, the glass fiber reinforced nylon composite material comprises the following components by weight: 75-82 parts of nylon 6, 14-16 parts of modified glass fiber, 2-3 parts of polyethylene glycol, 0.4-0.7 part of an antioxidant, 0.6-1 part of a lubricant and 0.6-1 part of an antistatic agent; the modified glass fibers are prepared by treating glass fibers with a silane coupling agent and then treating the glass fibers with a dopamine-boron nitride surface modifier. The excellent tensile strength of the prepared composite material is guaranteed, and meanwhile, the reduction of the elongation at break is effectively avoided, so that the fatigue resistance of the composite material is guaranteed, and the service life is further prolonged.

Systems and methods for providing lubrication to a gas turbine engine are described. An example gas turbine engine includes a plurality of bearings disposed along an axial length of a rotatable shaft to provide rotational support between a static structure and at least one of a compressor and a turbine of the gas turbine engine. The gas turbine engine further includes a fuel system operable to deliver a mixture of fuel and lubricant sequentially to at least one of the plurality of bearings and the combustor so that during operation of the gas turbine engine, at least the lubricant within the mixture is in a liquid phase prior to being received by the at least one of the plurality of bearings, and in a vapor phase once the lubricant is delivered to the at least one of the plurality of bearings.

The invention discloses a high-strength directly-buried optical cable and a preparation method thereof. Comprising at least one reinforcing piece, at least one cable core, a water-blocking tape layer, an inner protective layer, an armor layer and a high-strength outer sheath, wherein the cable core surrounds the reinforcing piece, is twisted and is filled with water-blocking cable paste; the water-blocking tape layer wraps the cable core; the inner protective layer wraps the water-blocking tape layer; wherein the cable core is composed of a loose tube filled with water-blocking fiber paste and at least one light-guide fiber accommodated in the loose tube; wherein the high-strength outer sheath is prepared from the following raw materials in parts by weight: 80 to 85 parts of high-density polyethylene, 15 to 20 parts of nylon 612, 8 to 12 parts of compatilizer, 15 to 20 parts of modified silicon dioxide, 1 to 3 parts of antioxidant and 0.7 to 1.1 parts of lubricant. The high-strength directly-buried optical cable has excellent high strength, aging resistance and wear resistance, the service life of the optical cable is remarkably prolonged, and the transmission reliability of the optical cable is remarkably improved.

A lubricant supply system, for a drive apparatus of an electrically operated vehicle having at least one electric machine which outputs power to at least one vehicle wheel via a gear mechanism arrangement, includes an electric machine hydraulic circuit in which a lubricant tank is connected via a suction line to a pressure pump which conveys lubricant to the electric machine via an electric machine supply line, and includes a gear mechanism hydraulic circuit, via which lubricant can be conveyed to the gear mechanism arrangement. The pressure pump is associated as a common pressure pump with both the electric machine hydraulic circuit and the gear mechanism hydraulic circuit so that lubricant during pump operation can be recirculated both in the electric machine hydraulic circuit and in the gear mechanism hydraulic circuit.

The invention discloses a nano metal oxide insulating material coated soft magnetic composite material and a preparation method thereof, and the preparation method comprises the following steps: (1) putting metal soft magnetic powder and a nano metal oxide insulating material into a steel cylinder equipped with a rotating blade, and rotating the blade to drive the raw material to flow to obtain core-shell composite powder; (2) carrying out annealing treatment on the core-shell type composite powder to obtain a precursor; and (3) mixing the precursor and a lubricant, then pressing the mixture into a green body, and carrying out annealing heat treatment on the green body in a protective atmosphere to obtain the soft magnetic composite material. The prepared soft magnetic composite material is uniform in insulating layer and high in coverage rate, the binding force between the nano metal oxide and the metal soft magnetic matrix is high, the thickness of the coating layer is controllable, the obtained soft magnetic composite material has high magnetic conductivity and lower loss, and the insulating coating method is mild in process condition, simple in equipment, short in coating treatment time, high in efficiency, low in cost and suitable for industrial production. The method is suitable for large-scale production.

Disclosed in the present invention are an ultralow-smoke-density cold-resistant halogen-free flame-retardant cable material and a preparation method therefor. The cable material is prepared from the following raw materials in parts by mass: 50 parts of a base resin, 45-80 parts of an inorganic flame retardant, 1-3 parts of a lubricant, 2-4 parts of a reactive smoke suppressant, 0.2-0.5 part of an antioxidant, 2-5 parts of zinc borate and 1-2 parts of a coupling agent, the base resin comprising an ethylene-vinyl acetate copolymer, a maleic anhydride grafted polymer and a metallocene linear polyethylene resin in a mass ratio of (25-35):(5-10):(10-20), and the inorganic flame retardant being a mixture of modified aluminum-magnesium hydrotalcite and modified magnesium hydroxide. The inorganic flame retardant used in the present invention has dual effects of flame retardance and smoke elimination, so that in cooperation with the reactive smoke suppressant, the cable material can reach an ultralow smoke density during combustion. In addition, none of the base resin, the inorganic flame retardant and the reactive smoke suppressant contains a halogen component, so that no halogen gas will be generated during combustion. The base resin has a reasonable proportion, so that the cable material can tolerate a low temperature of -40℃.

The invention discloses an industrial equipment health state analysis method, and relates to the technical field of industrial equipment health monitoring, and the method comprises the steps: obtaining vibration data, lubricating oil pollution image data and real-time motor current data of an automobile factory punching machine; generating a dynamic weight coefficient according to the ratio of the real-time motor current data to the rated current of the equipment; performing weighted summation to calculate a real-time health score; constructing a wear-fatigue coupling model to calculate and output an alarm prediction L value; and when the alarm prediction L value exceeds a set threshold value, generating an equipment maintenance instruction and adjusting equipment operation parameters. According to the method, through multi-physics field coupling modeling, dynamic weight distribution and closed-loop self-optimization mechanisms, the precision and real-time performance problems of equipment health state analysis in an automobile manufacturing scene are solved, the method is particularly suitable for high-load equipment such as a punching machine tool and a welding robot, and compared with a traditional method, the comprehensive operation and maintenance cost is reduced, and the non-planed downtime is shortened.

The invention relates to the technical field of TPU films, in particular to a flame-retardant TPU film and a preparation method thereof, and the flame-retardant TPU film comprises the following raw materials in parts by weight: 45-50 parts of TPU, 7-11 parts of a modified additive, 6-9 parts of a chemical resistant agent, 5-8 parts of a flame retardant, 3-5 parts of a flexibilizer, 2-3 parts of an antioxidant, 2-3 parts of a silane coupling agent and 1-3 parts of a lubricant. According to the TPU thin film, TPU is adopted as a matrix, the flame retardant, the flexibilizer, the antioxidant, the silane coupling agent and the lubricant are added to serve as functional auxiliaries, and meanwhile the modified additive and the chemical resistance agent are added to serve as blending raw materials, so that the flame retardance of a product is optimized, the coordinative improvement of water vapor blocking and tearing is achieved, and the ultraviolet-resistant and corrosion-resistant stability effects of the product are remarkable.

The invention relates to the technical field of high polymer materials, in particular to ethylene-vinyl acetate copolymer modified polypropylene high-toughness plastic particles and a preparation process thereof. The composite material is prepared from the following raw materials in parts by weight: 60 to 80 parts of polypropylene, 15 to 30 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of maleic anhydride-2-ethylhexyl acrylate copolymer grafted ethylene-vinyl acetate copolymer, 3 to 8 parts of nano silicon dioxide / graphene quantum dot composite filler, 5 to 12 parts of polyolefin elastomer, 0.5 to 2 parts of antioxidant and 0.5 to 2 parts of lubricant. The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 20-33 wt%, the composite filler is modified through a silane coupling agent KH-560, the grafting rate of the grafted ethylene-vinyl acetate copolymer is 1.5-3.5 wt%, and the composite filler is prepared through a melt grafting method. Through multi-component collaborative design and process optimization, the low-temperature toughness, rigidity, heat resistance and aging resistance of the material are improved, the problems of rigidity and toughness imbalance, low-temperature brittleness, poor stability and the like of a traditional modification system are solved, and the material is excellent in comprehensive performance and wide in application range.