46 results about "Thermal ageing" patented technology

The invention relates to the technical field of digital twinning, in particular to a digital twinning-based heat dissipation system full-life-cycle predictive maintenance platform, which comprises a data acquisition module; a model construction module; the block division module is used for determining direct partitioning based on the regional coupling strength or related partitioning based on the heat exchange correlation degree according to the fault transfer coefficient; the category analysis module is used for determining a block category based on the temperature deviation degree and determining whether to adjust the block category of the second-class block based on the maximum fluctuation period attenuation rate according to the pollutant deposition influence degree and the thermal aging accumulation rate of the second-class block; the updating analysis module is used for determining the updating frequency of each updating block based on the comprehensive evaluation value; and the updating optimization module is used for determining whether to carry out optimization adjustment or not according to the block change coefficient. The model updating efficiency can be improved.

The invention relates to the technical field of material performance detection, in particular to a rapid testing method for thermal aging failure of an oil and gas pipeline anticorrosive coating material, which comprises the following steps: testing oxidation induction time t of a sample; respectively carrying out thermal aging with different time lengths at 150 DEG C, measuring and calculating A (tri) / A (on) and a melt index change rate, establishing a linear equation of the A (tri) / A (on), and calculating A '(tri) / A' (on) corresponding to 35% of the melt index change rate; carrying out thermo-oxidative aging on the sample at different time lengths, measuring and calculating A (tri) / A (on), and obtaining aging time t'according to A '(tri) / A' (on); carrying out oxidation induction time test on the thermally aged material to obtain a rate coefficient k; and calculating the aging time corresponding to the material failure critical point. The test method provided by the invention can rapidly characterize the thermal aging failure critical point of the anticorrosive coating material, and provides a scientific basis for development of the material.

The invention relates to an electric-thermal combined aging simulation system and an aging simulation method of oiled paper. The system comprises an aging oven, a sealing oil groove arranged in the aging oven, and an electrode module and a temperature control module which are arranged in the sealing oil groove, the sealed oil groove is filled with insulating oil, the electrode module comprises an upper electrode and a lower electrode parallel to the upper electrode, and an oil paper sample is placed between the upper electrode and the lower electrode; the electrode module is used for applying an electric field to the surface of the oiled paper sample to simulate the electrical aging process of the oiled paper sample; and the temperature control module is used for adjusting the temperature of the insulating oil in the sealed oil groove in the process of simulating the electrical aging of the oiled paper sample so as to simulate the process of the combined action of thermal aging and electrical aging of the oiled paper sample. By adopting the method, accurate control of electric-thermal aging can be realized.

The application discloses a kind of thermoset elastomer thermal aging state evaluation method, comprising the following steps: S1, elastomer is treated with heat aging;S2, the maximum elongation of aging sample and positron annihilation lifetime spectrum are tested, and the free volume of aging sample is obtained by analyzing positron annihilation lifetime spectrum;S3, least square method is used to linearly fit the maximum elongation of aging sample and free volume, and the fitting equation of maximum elongation and free volume of elastomer in the process of thermal aging treatment is established;S4, in the actual thermal aging test of the same kind of elastomer, the fitting equation is used, and the maximum elongation of elastomer is calculated by determining the free volume of elastomer, and the thermal aging state of elastomer is evaluated.The application establishes the correlation between the maximum elongation of elastomer and free volume, realizes the thermal aging state of elastomer by free volume, realizes in-situ detection of thermal aging performance, and has high accuracy.

The invention discloses an oil paper insulation life evaluation method, device and equipment of a converter transformer and a medium, and relates to the technical field of electric power engineering, and the method comprises the steps: building an insulation life improvement model based on a linear cumulative damage theory and a thermal aging model; carrying out numerical solution on the electromagnetic field and the solid force field to obtain Lorentz force density and mechanical damage accumulation equivalent stress distribution, and determining an equivalent stress translation factor by utilizing the mechanical damage accumulation equivalent stress distribution; solving numerical values of the oil paper insulation space temperature field and the electromagnetic field to obtain total eddy current loss, and determining a temperature translation factor based on the Lorentz force density, the total eddy current loss and the oil paper insulation space temperature field; calculating total acceleration factor distribution by using the equivalent stress translation factor and the temperature translation factor, inputting the total acceleration factor distribution into the insulation life improvement model, and outputting space life distribution; and carrying out oil paper insulation life evaluation on the converter transformer, realizing quantitative evaluation on insulation fatigue damage under the action of cyclic load, and comprehensively evaluating the life of an insulation material.

This invention discloses a flame-retardant and anti-aging cable composite material and its preparation method, belonging to the field of cable material preparation technology. In this invention, a flame-retardant, high-temperature resistant polysiloxane containing double bonds, an anti-aging agent, and a flame-retardant filler are prepared and blended with raw materials such as EVA and low-density polyethylene. Irradiation causes cross-linking between the materials, endowing the composite material with heat resistance, aging resistance, and good mechanical properties. The anti-aging agent of this invention includes siloxane groups and benzophenone groups, possessing good resistance to both UV aging and heat aging, which is beneficial for further improving the anti-aging performance of the prepared cable composite material. The flame-retardant filler of this invention has urethane bonds grafted onto its surface, which matches the polarity of the EVA vinyl acetate segments, improving the compatibility between the flame-retardant filler and EVA, and further enhancing the flame retardancy of the prepared composite cable material.

The utility model discloses a novel motor casing relates to motor technical field, including the mounting hole on the base of casing body and its bottom, and the mounting hole wall is circumferentially provided with one or more outward extending heat conduction groove, and this heat conduction groove penetrates casing body outer surface and is communicated with the inside of mounting hole. The structure constructs the heat dissipation channel that reaches the outside of casing through the mounting hole area, and the heat blocking problem that the small bolt head contact area, air insulation of traditional motor casing causes is solved. When the bolt and the inner wall of mounting hole contact, heat can diffuse to the external environment along the heat conduction groove, and the local temperature rise of base mounting hole area is reduced, and then material thermal aging and bolt pre -tightening force attenuation are avoided.

This application provides a method for thermogravimetric analysis (TGA) of resin-based composite materials for aero-engine components, belonging to the field of composite material testing technology. The method includes: extracting the operating state points of the aero-engine components; simplifying the operating state points; determining statistical results of the component's operating temperature and operating time for the thermogravimetric analysis based on the simplified operating state points; conducting a preliminary thermogravimetric analysis based on the statistical results of the component's operating temperature and operating time; using the preliminary thermogravimetric analysis results as a benchmark, determining the thermogravimetric trend and the direction for conducting thermogravimetric analysis using a temperature gradient; determining the temperature threshold for thermogravimetric analysis based on the temperature gradient thermogravimetric analysis results; calculating the cumulative thermogravimetric rate of the composite material used in the aero-engine components over the entire engine lifespan by calculating the thermogravimetric rate at each operating temperature above the cumulative temperature threshold; and accelerating the thermal aging of a new test piece to the cumulative thermogravimetric rate to obtain performance loss results.

The invention belongs to the technical field of safety evaluation of service materials, and particularly relates to a microscopic rapid evaluation method for a long-time thermal service state of a nuclear power pressure vessel material, which comprises the following steps of: 1, selecting a pressure vessel micro-area material in a certain service state; 2, a specific corrosive liquid is selected for corrosion for a certain time, and a state monitoring sample piece is obtained; step 3, the microscopic morphology of the state monitoring sample piece is shot through a microscope; 4, counting the percentage composition of the corrosion area; and 5, evaluating the thermal service state of the material according to the linear relationship between the percentage composition of the corrosion area and the thermal aging time. According to the microscopic rapid evaluation method for the long-time thermal service state of the nuclear power pressure vessel material, thermal aging degradation damage of the pressure vessel material is presented through an over-corrosion method, rapid evaluation of the thermal aging state can be achieved only by obtaining a local monitoring material, and the microscopic rapid evaluation method still has a good prediction effect on long-time thermal service equipment.

The invention relates to a polypropylene composite material as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The polypropylene composite material disclosed by the invention is prepared from the following components in parts by weight: 22 to 84 parts of polypropylene resin, 4 to 11 parts of elastomer, 9 to 21 parts of talcum powder, 0.15 to 2.5 parts of thermal aging aid and 0.18 to 1.2 parts of light aging aid, the thermal aging auxiliary agent comprises an antioxidant, a neutralizer and porous silicon dioxide A; the mass ratio of the antioxidant to the neutralizer to the porous silicon dioxide A is (0.5-5): (0.5-3): 1; the light aging auxiliary agent comprises a light stabilizer and porous silicon dioxide B; the mass ratio of the light stabilizer to the porous silicon dioxide B is (0.5-3): 1. The polypropylene composite material with excellent heat aging resistance and light aging resistance is obtained by compounding polypropylene and a specific auxiliary agent.

This invention discloses a method for dynamic modeling of the temperature field and prediction of overheating risk in cable connectors, relating to the field of electrical equipment condition monitoring and thermal management technology. The method includes constructing the connector's geometric domain and establishing a fully coupled electro-magnetic-thermal-mechanical initial value model containing Lorentz force correction terms and eddy current loss heat source terms; jointly assembling the Lorentz force and eddy current loss terms to form a magneto-thermal coupling correction matrix, calculating the equivalent heat source field of a strong magnetic field; solving the temperature field and updating the conductivity and permeability distributions in reverse, forming a bidirectional coupled iterative loop until a converged temperature field is output; extracting hot spot trajectories and temperature gradient vector fields based on the converged temperature field, inputting them into the thermal aging kinetic model of the insulation material to generate a multidimensional indicator surface for overheating risk, determining the risk level and outputting a warning signal. This invention improves the accuracy of connector temperature field prediction and the reliability of overheating risk warning under strong magnetic field environments through bidirectional coupled iterative correction and fully coupled modeling.

The invention belongs to the technical field of high polymer material modification, and discloses a heat-aging-resistant high-performance PVDF pipe fitting material and a preparation method thereof.The material is composed of a PVDF matrix, a two-dimensional nanosheet layer subjected to surface compatibility treatment, a light cross-linking system, a compatilizer, an antioxidant and a processing aid; the preparation method comprises the following steps: carrying out surface compatibility treatment on a two-dimensional nanosheet layer; carrying out melt blending granulation on a part of the PVDF matrix, the two-dimensional nanosheet layer and a compatilizer to prepare nanosheet master batches; carrying out melt blending on the residual PVDF matrix, the master batch, the antioxidant and the processing aid, adding the light crosslinking system in the later stage, and carrying out vacuum devolatilization; after filtering, extruding and granulating to obtain the PVDF pipe fitting material. The material is suitable for PVDF (Polyvinylidene Fluoride) pipes and pipe fittings for conveying high-temperature corrosive media.

The invention belongs to the technical field of high polymer materials, and discloses a PP / PA composite material for an automobile front-end module and a preparation method of the PP / PA composite material. Tackifying resin and fumed silica are introduced into a PP and PA resin system to improve polarity, so that PP / PA and long glass fibers are fully infiltrated and bonded during impregnation, the glass fibers are better wrapped, tight combination is formed, the strength of the composite material is improved, and floating fibers are prevented. And the organic-inorganic hybrid heat-resistant agent is introduced, so that the heat aging resistance of the composite material is comprehensively enhanced. The ethylene-butyl acrylate copolymer is introduced, and a butyl acrylate tough chain segment is utilized, so that the glass fiber is prevented from being excessively shorn during injection molding processing, and good rigidity, strength and impact toughness are ensured. The obtained PP / PA composite material is used for the front-end module of the automobile, can provide enough tensile strength, impact toughness and high temperature resistance in the aspects of impact and vibration bearing and heat dissipation, and promotes wide application of the material in the front-end module of the lightweight automobile.

The utility model relates to a base for a quartz crystal resonator, which comprises a shell and a base, a first heat conducting sheet is arranged in the middle of the bottom of the shell, and the bottom of the shell is connected with the upper part of the base; a second heat conduction piece is arranged in the middle of the upper portion of the base and makes contact with the first heat conduction piece, the interior of the base is hollow, and a heat exchange device is arranged on the base. The shell and the base are provided with the first heat-conducting fin and the second heat-conducting fin which are high in heat-conducting property, high temperature in the shell is transmitted to the base through the heat-conducting fins, low temperature in the base is transmitted to the shell, heat exchange is carried out, the shell is cooled, the temperature in the shell is effectively reduced, and the service life of the shell is prolonged. And the problem of thermal aging acceleration of the crystal wafer caused by overheating is reduced, so that the reliability and stability of the resonator are improved, meanwhile, the problem of clock out-of-step caused by temperature change is reduced, and accurate operation of the system is ensured.

The invention relates to the technical field of polyimide slurry preparation, in particular to polyimide composite heat insulation slurry and a preparation method thereof. The problems that a traditional heat insulation material is high in haze and poor in heat aging resistance are solved. The slurry comprises modified hollow mesoporous silicon oxide, a passivated infrared blocking agent and an alicyclic polyimide matrix, precise matching with the refractive index of a matrix is achieved through microsphere surface phenyl modification, and interface scattering is eliminated. An organic-inorganic structure is formed by using surface amino groups to participate in in-situ polymerization, so that microsphere agglomeration and floating are prevented; and in cooperation with dense silicon resin passivation on the surfaces of the nanoparticles, excellent heat insulation performance and extremely high optical transmittance are achieved at the same time on the premise that fluorine is not contained completely, and the fluorine-free heat-insulating film is suitable for high-end display panels such as organic light-emitting diodes and micro light-emitting diodes.

The utility model discloses enameled round copper wire high-temperature aging test equipment, which relates to the technical field of enameled wire high-temperature aging test and comprises a thermal aging test box, a base plate is rotatably connected in the thermal aging test box, a bearing plate is movably clamped on the upper surface of the base plate, and two connecting columns for fixing a sample are movably connected on the upper surface of the bearing plate. The butterfly-shaped screw is rotated upwards to be separated from the clamping connection with a group of limiting grooves formed in the base plate, the limiting is opened, the connecting column can move at the moment, the connecting column moves to apply different degrees of tensile force to the sample, so that the tensile strength change of the enameled wire in a thermal aging environment is detected, and the detection accuracy is improved. The bearing disc, the connecting column, the butterfly screw and the like are all made of high-temperature-resistant materials, the decline condition of the mechanical property of the enameled wire can be evaluated by measuring the maximum tensile force which can be borne by the enameled wire under different aging time and temperature conditions, and an important basis is provided for judging the service life of the materials.

The invention discloses a transformer thermal aging simulation device in a laboratory and a test method, and relates to the field of insulating oil. The simulation device comprises a dual-temperature aging unit, an oil change unit, a detection unit and a control unit. The double-temperature aging unit comprises an aging tank, a heating rod and a wire, and the wire is connected with a current transformer; the oil change unit comprises an oil storage tank, the aging tank is provided with an oil injection pipe opening and an oil outlet pipe opening, and the oil storage tank is connected with the oil injection pipe opening. The simulation device is provided with a heating rod and current transformer double-temperature control system, a gradient temperature area existing in actual transformer operation can be simulated, meanwhile, the whole oil change process of the aging test is in a closed space, the oil change operation is high in efficiency and simple and convenient, a large amount of water can be prevented from being introduced to interfere a test result, and the test efficiency is improved. The method has important significance for accurately evaluating the thermal aging performance of the transformer insulation system.

The utility model belongs to the technical field of aging test boxes, and particularly relates to a ventilation type thermal aging test box. Comprising a box body, and an inner shell and an outer shell are arranged in the box body; the two circulating air ducts are arranged, the left circulating air duct and the right circulating air duct are respectively a left cavity and a right cavity divided by an inner cavity between the inner shell and the outer shell, a plurality of electric heating wires are arranged in the circulating air ducts, and a circulating fan is mounted at one end of each circulating air duct; the air inlet mesh and the air outlet mesh are arranged at the bottom and the top of the inner shell respectively and used for being communicated with the air inlet end and the air outlet end of the circulating air duct; the rotating net disc is rotationally installed at the bottom of the inner shell, the driving shaft end of the rotating net disc is connected with the output end of a driving motor, and the driving motor is installed in the box body; the aging temperature with uniform distribution can be provided for the to-be-tested product, the heating rate is high, and the aging test period of the product is shortened.

The application discloses a kind of on-line evaluation methods of remaining service life of insulation bus duct, belong to the technical field of electric power equipment.The method comprises: obtaining the reference thermal life parameters of insulating material, including activation energy and frequency factor;Real-time temperature data in operation is obtained according to sampling period;Characteristic life value under current temperature is calculated based on the temperature data using Arrhenius equation, and the ratio of sampling period length and characteristic life value is taken as the thermal aging loss increment of the period;Loss increment is accumulated to historical cumulative thermal aging loss total value;Whether the cumulative value reaches the life termination threshold is judged, and the remaining service life evaluation result is calculated and output when not reached.The application combines thermal aging model with on-line temperature monitoring, to realize dynamic evaluation under variable temperature condition in the form of discrete time sampling and loss accumulation, solves the problem that offline evaluation cannot reflect actual operation condition cumulative aging, algorithm is simple, deployment cost is low, and is suitable for bus duct on-line monitoring.

The invention discloses a polyamide composite material which comprises the following components in parts by weight: 60-80 parts of polyamide resin; 1.3 to 3.3 parts of a hindered phenol antioxidant; 0.5 to 0.9 part of a copper salt antioxidant; 1.2 to 2.0 parts of a phosphite ester antioxidant; 10 to 30 parts of reinforcing fiber; and 3-5 parts of a silane coupling agent. By selecting the compound antioxidant, a full-temperature-range thermal aging resistant effect can be achieved, and particularly, performance reduction caused by degradation of the glass fiber impregnating compound is improved.

The invention discloses a current-carrying capacity calculation method and system for a high-voltage direct-current submarine cable under a thermal aging condition, relates to the technical field of high-voltage direct-current submarine cables, and aims to solve the problem of misalignment of current-carrying capacity calculation caused by thermal aging of an insulating material after long-term operation of the high-voltage direct-current submarine cable. The method is technically characterized by comprising the following steps: determining a thermal conductivity time-varying attenuation function of the high-voltage direct-current submarine cable material at high temperature based on a first-level dynamic law; and calculating the current-carrying capacity of the submarine cable based on the thermal conductivity time-varying attenuation function. On the basis of experimental study on the long-term aging rule of the XLPE material, a thermal conductivity time-varying function is constructed, and then an accurate calculation method for the steady-state current-carrying capacity of the high-voltage direct-current submarine cable after increasing along with the service time is provided. The invention provides a new method for the capacity planning and design of the high-voltage direct-current submarine cable system and the dynamic evaluation of the current-carrying capacity in the long-term operation and maintenance process.

The invention discloses a high-temperature-resistant impact-resistant epoxy-silicon carbide rubber composite damping material as well as a preparation method and application thereof. The composite material comprises the following components in parts by weight: 100 parts of epoxy resin, 20-40 parts of carboxy nitrile rubber, 5-15 parts of surface modified nano silicon carbide, 8-12 parts of a core-shell structure acrylate flexibilizer and 30-50 parts of a curing agent. According to the invention, an interpenetrating network structure is formed through dynamic vulcanization, and high performance of the material in an extreme environment is realized in combination with a stepped curing process. The problem that the damping performance and the mechanical performance of a traditional material are inverted is solved, and particularly the epoxy-based composite material has excellent damping performance, impact resistance and thermal aging resistance within the temperature range of-60 DEG C to 300 DEG C. The material is particularly suitable for extreme working conditions such as aerospace engine supports, high-speed rail transit shock absorbers and heavy mechanical buffer parts.

The present application relates to the technical field of pipe material heat aging, in particular to a PEXA pipe material heat aging test box, which comprises a pull-out type frame body arranged in a test cavity, the pull-out type frame body comprises a rotating section, the rotating section is provided with a clamping piece and a bottom support piece; the conical table is rotated by 180 degrees, the dumbbell-shaped sample is clamped by the elastic clamp, at this time, the circular ring limits the movement range of the lower end of the dumbbell-shaped sample; the elastic clamp is rotated by 180 degrees, at this time, the inverted conical structure cooperates with the conical table to stably fix the straight pipe-shaped sample without stress, and the straight pipe-shaped sample is still through from top to bottom. The T-shaped plug-in high-stability locking, counterweight self-stability and double-position limiting mode are adopted, a multifunctional integrated clamping structure is formed, no clamping deformation of the sample in the heat aging test is realized, the sample is exposed to the maximum extent and anti-interference, and the core problems of stress concentration, uneven heat exchange and low position stability in the sample fixing mode in the traditional heat aging test are solved.

The invention discloses an aging test method, equipment and a medium, relates to the technical field of equipment aging tests, and solves the problem that a thermal aging test and an operation aging test of a current shutdown circuit breaker screen model machine are generally carried out separately, and the test difficulty of continuous tests of the same shutdown circuit breaker screen model machine under different aging mechanisms is high. The method comprises the following steps: selecting a fixed number of shutdown circuit breaker screen prototypes from the same production batch as test prototypes; performing a first aging test on the test prototype according to the test environment, and obtaining first test data of the test prototype based on the first aging test; constructing test operation of the test prototype, performing a second aging test on the test prototype through the test operation, and then obtaining second test data of the test prototype based on the second aging test; and judging whether the aging test of the test model machine is qualified or not according to the first test data and the second test data. According to the invention, continuous test and quantitative judgment of the shutdown circuit breaker screen model machine under different aging mechanisms are realized.

The invention discloses an organic silicon heat-resistant aging test device, and relates to the technical field of organic silicon experiments, a test container is used for accommodating a fluid medium and an organic silicon sample, a loading rod penetrates through a sealing mechanism on the end surface of the test container and extends into the test container, and one end of the loading rod is provided with a clamp for clamping the organic silicon sample; the driving unit is connected with one end, positioned outside the test container, of the loading rod and is used for driving the loading rod to move so as to apply a load to the organic silicon sample; a compensation unit is arranged on the side wall of the test container and is used for accommodating or releasing the fluid volume replaced by the movement of the loading rod, so that the organic silicon sample is soaked in the fluid medium at any time; and a thermal environment simulation unit is arranged outside the test container and is used for providing a controllable temperature environment for the test container. Through the arrangement, the organic silicon sample can be subjected to comprehensive environment simulation, and the obtained test data is more accurate.

The utility model discloses a high-precision thermal aging test box, which relates to the technical field of test boxes and comprises a mounting box and a storage component. A material taking opening is formed in the right side of the mounting box, a sealing frame is fixed in the material taking opening, the right side of the mounting box is connected with a baffle through a hinge, the baffle is attached to the right side of the sealing frame, a moving assembly is mounted on the lower side of the mounting box, and a heating assembly is mounted in the mounting box; a limiting assembly is mounted on the right side of the mounting box, the limiting assembly is attached to the right side of the baffle, and a support is fixed to the lower side of the mounting box; the storage assembly comprises a sliding block, a rotating shaft, a rotating ring and an anti-skid disc, a sliding opening is formed in the lower side of the mounting box, the sliding block is slidably connected to the interior of the sliding opening, a rotating hole is formed in the edge of the left side of the sliding block, and the rotating shaft is rotatably connected to the interior of the rotating hole, so that the test material can be uniformly heated.

The application relates to a heat aging test device and system. The heat aging test device comprises a test box for accommodating an insulation sample; a temperature control assembly connected with the test box and used for regulating the internal temperature of the test box; and a measurement and control assembly partially located in the test box and partially located outside the test box, wherein the measurement and control assembly comprises at least two measurement modules and a selection module, the selection module is connected with each measurement module and the insulation sample, and the selection module is used for selecting a passageway between the measurement module and the insulation sample; the measurement module is used for measuring the dielectric property parameters of the insulation sample under the internal temperature in the case of electrical connection with the insulation sample; and each measurement module measures different dielectric property parameters. The heat aging test device can accurately reflect the operation condition of cable insulation materials.

The utility model discloses a thermal aging test box for cable detection, which relates to the technical field of cable detection and comprises a box body and a temperature controller. A box cover is hinged to the front side face of the box body, main heating pipes are fixed to the left side and the right side of the interior of the box body, an air inlet pipe is arranged on the left side face of the box body, an exhaust groove is formed in the surface of the box body, the temperature controller is fixed to the front side face of the box body, and electromagnets are fixedly installed in two grooves in the front side face of the box body. A rotating unit is arranged in the box body, and a humidifying unit is arranged on the top surface of the box body; according to the thermal aging test box for cable detection, a liquid pump is adopted to be matched with an atomizing nozzle to inject moisture into the box body, the liquid pump is matched with a heating pipe to ensure that a cable is detected under high temperature and high humidity, and meanwhile, a fixing frame which is movably arranged can straighten the cable and rotate to enable the cable to be heated more uniformly; and the detection accuracy is improved.

The invention relates to a high-temperature-resistant and recyclable TPEE film as well as a preparation method and application thereof, and belongs to the technical field of high-performance environment-friendly high polymer materials. The thermoplastic polyester elastomer composite material is composed of thermoplastic polyester elastomer (TPEE) matrix resin, a high-temperature-resistant reinforcing filler, a high-thermal-stability auxiliary agent and a recycled compatilizer. The TPEE resin with a specific structure is selected to be compounded with the high-temperature-resistant inorganic filler, and an efficient thermal stability and hydrolysis resistance system is introduced, so that the thermal deformation temperature (HDT) and the long-term thermal aging performance of the film are remarkably improved, and meanwhile, the thermoplastic nature of the TPEE is kept, so that excellent recyclability is realized. The mechanical property retention rate of the film after long-term use at 180 DEG C is greater than or equal to 85%, and the key performance attenuation rate of the film after at least three times of melting recovery processing is less than 15%, so that the technical problem that the material cannot be recovered due to traditional high-temperature-resistant modification is successfully solved. The film is particularly suitable for the fields of new energy automobile battery assembly insulation, high-temperature electronic tags, recyclable environment-friendly packaging, heat-resistant special fabrics and the like.