105 results about "Low emissivity" patented technology

The invention discloses an energy-saving dimming assembly and a manufacturing method, and relates to the technical field of building energy-saving facilities, and the energy-saving dimming assembly is sequentially provided with a first transparent layer, a second transparent layer, a third transparent layer and a fourth transparent layer from outside to inside, the temperature response functional layer comprises a mixture of at least two thermochromic high polymer materials and is configured to realize adjustment of light transmittance in a preset temperature interval; the second transparent layer is used for supporting the temperature response functional layer; and an optical regulation and control layer configured to have a low-radiation characteristic in a long-wave infrared region. According to the invention, the transmittance of visible light and infrared light of the window can be changed along with the change of temperature at 20-38 DEG C. Meanwhile, programmed adjustment of the corresponding temperature response interval can be achieved through temperature change; and the gradual change of the transmittance of visible light and infrared light can be regulated and controlled in a programmed manner through the temperature change, so that the effects of regulating the indoor brightness and temperature and protecting the visual comfort of a user are realized, and the aim of saving energy is fulfilled.

The application relates to a coated glass and a laminated glass, the coated glass comprising a first glass sheet and a low-emissivity stack arranged on at least one surface of the first glass sheet, the low-emissivity stack comprising at least one transparent conductive oxide layer and at least one visible light blocking layer, the at least one visible light blocking layer being arranged on a side of the at least one transparent conductive oxide layer away from the first glass sheet, the at least one visible light blocking layer having a total physical thickness greater than 10 nm; the first glass sheet having a visible light transmittance TL1, the coated glass having a visible light transmittance TL2, TL1 and TL2 satisfying TL2 / TL1<=0.4. The coated glass can ensure low emissivity and low visible light transmittance, realize low visible light reflectivity, and make the prepared laminated glass have neutral color and lower manufacturing cost.

A display device includes a first type heat dissipation layer having a high emissivity disposed on a lower surface of a display panel, an upper surface of an inner plate and / or a lower surface of the inner plate facing to a lower frame, and a second type heat dissipation layer having a lower emissivity disposed on the lower surface of the inner plate corresponding to a driving circuit board. The heat generated in the display panel can be efficiently dissipated to an outside and heat generated in the driving circuit board can be transferred to the display panel in a minimized form.

The utility model relates to building energy -saving technical field solves the problem that traditional hollow glass depends on air layer heat insulation, but the heat conductivity coefficient is higher, and the energy -conserving effect is limited, and low emissivity coated glass needs to cooperate inert gas filling, and the process is complex and the durability is insufficient. Specifically, a glass heat insulation assembly, including outer glass, the front of outer glass is equipped with the snap -groove, the inside of snap -groove is provided with first adhesive layer, the front of first adhesive layer is provided with heat insulation assembly, the front of heat insulation assembly is provided with second adhesive layer, heat insulation assembly includes fixedly connected in first adhesive layer target flexible heat insulation core layer, the front of flexible heat insulation core layer is fixedly connected with reflection film layer, the front of second adhesive layer is fixedly installed with toughened glass, the outer surface of second adhesive layer is fixedly connected with first elastic heat conduction adhesive tape, the edge of outer glass is fixedly connected with second elastic heat conduction adhesive tape, and second elastic heat conduction adhesive tape is used for the edge of outer glass seal.

The invention relates to the technical field of textile materials, in particular to a thermal imaging and far infrared prevention fabric and a preparation method thereof.The fabric comprises a three-layer structure, the first layer is a base material bottom layer, the second layer is a reinforcing framework layer, and the third layer is a low-emissivity surface layer; the base material bottom layer comprises modified aramid fiber, the two sides of the modified aramid fiber are coated with low-emissivity slurry, and the low-emissivity slurry comprises nickel micro powder modified resin; the reinforced skeleton layer comprises a carbon fiber yarn and pre-oxidized fiber blend, and a conductive layer is attached to the surface of the carbon fiber yarn; the low-emissivity surface layer comprises nickel micro powder modified resin and ceramic micro powder. The preparation method of the fabric comprises the following steps: modifying the aramid fibers, pretreating the carbon fibers and the pre-oxidized fibers, coating by using low-emissivity slurry, bonding, and then carrying out hot press molding. The fabric can reflect 90% of radiant heat, and the emissivity lt of the spectrum at the wave band of 8-14 microns is achieved; the cable has excellent thermal imaging and far infrared prevention functions, has a flame retardant grade V0, and is suitable for various civil scenes.

The application relates to the technical field of infrared stealth, precise thermal control and electromagnetic compatibility, and particularly discloses a film system structure with visible ultra-high reflectivity, middle-infrared and far-infrared low emissivity and microwave high permeability; the medium stack layer has high reflectivity to visible light; the metal microstructure layer has low emissivity to middle-infrared and far-infrared light and high permeability to microwaves; the film system structure has visible light reflectivity greater than 60%, middle-infrared and far-infrared light emissivity lower than 30% and microwave permeability higher than 60%. The application realizes perfect compatibility of infrared stealth and microwave absorption, keeps infrared low emissivity (epsilon < 0.1) and realizes high permeability (greater than 95%) to 1-18GHz microwave bands. The application solves the thermal failure problem of the composite stealth structure, realizes average visible light reflectivity (greater than 95%) through the medium stack layer, greatly reduces the solar heat load and improves the overall optical performance.

The application provides a substrate carrier, a conveying system, a vacuum system and a method for operating the substrate carrier, the substrate carrier comprising a bearing frame, a substrate bearing surface, a groove and a heat absorbing sheet, the substrate bearing surface is used for placing a substrate, a groove is arranged on the bottom side of each substrate bearing surface, a heat absorbing sheet is arranged on the bottom surface of the groove, the emissivity of the first surface of the heat absorbing sheet is greater than the emissivity of the second surface of the groove bottom surface and / or the heat absorbing sheet, in this case, the low emissivity surface can inhibit heat dissipation, and the high emissivity surface can allow heat to pass through efficiently, therefore the first surface of the heat absorbing sheet can reabsorb the thermal radiation of the substrate and transmit to the second surface or the groove bottom surface, and good heat dissipation effect is achieved. This technology is simple and low in cost, meanwhile, the coating speed does not need to be reduced, and the problem of temperature rise of the substrate can be effectively solved without reducing the processing efficiency.

The invention provides a visible light transparent-mid-infrared low-emissivity composite material and a preparation method thereof. The visible light transparent-mid-infrared low-emissivity composite material sequentially comprises a base layer, an anti-rust paint layer, a first transparent resin layer, a plasmon nano functional filler layer and a second transparent resin layer from inside to outside, the light transmittance of the composite material at the wave band of 400-700 nm is greater than 80%, and the infrared emissivity at the wave band of 8-14 [mu] m is less than 0.55. The light transmittance of the composite material in the wave band of 400-700 nm is larger than 80%, the infrared emissivity of the composite material in the wave band of 8-14 microns is smaller than 0.55, and high visible light transparency and low intermediate infrared emissivity of the material can be both considered; and a transparent material system can be effectively introduced on the premise that the structural stability and the process feasibility of the plasmon nano functional material are ensured, so that the synergistic compatibility between the plasmon nano functional material and the transparent material system is realized.

The invention relates to a high-thermal-conductivity high-temperature solar photothermal conversion coating and a preparation method and application thereof, and belongs to the technical field of new energy materials. According to the method, a high-thermal-conductivity Sr or Ca-doped LaCoO3 oxide material is used as a main component of the coating, and double-layer spraying preparation of a body layer and a surface layer is adopted. Compared with a traditional spinel oxide-based coating, the coating prepared through the method has the advantages that the heat conductivity is remarkably higher, meanwhile, the high light absorption rate (higher than 95%) and the low emissivity (lower than 0.65) are achieved, surface heat radiation and heat convection loss are remarkably reduced under the high-temperature working condition, and therefore the photo-thermal conversion efficiency is improved. The photo-thermal conversion efficiency of the coating is remarkably higher than that of a commercial product PyroMark2500, and the preparation method is simple, low in cost and capable of achieving large-scale production.

The invention discloses a high-temperature stable spectrum selective infrared film and a preparation method thereof, and belongs to the technical field of infrared functional materials. The thin film adopts a Fabry-Perot cavity multi-layer structure and sequentially comprises a bottom infrared reflecting layer, a top infrared reflecting layer, a top infrared reflecting layer, a bottom infrared reflecting layer and a top infrared reflecting layer from bottom to top, the intermediate dielectric resonance layer is prepared from an infrared transparent semiconductor material; the upper-layer part absorption layer is a metal thin film; the top packaging protection layer is made of an infrared transparent dielectric material; wherein the intermediate medium resonance layer is of a crystalline structure formed through thermal pretreatment, and the crystalline structure fundamentally inhibits interdiffusion of elements between film layers and structural phase change at high temperature; through the design, the thin film has low emissivity in atmospheric window wave bands of 3-5 microns and 8-14 microns, has high emissivity in a non-detection wave band of 5-8 microns, and can be used at the temperature of 600 DEG C for a long time.

The present invention provides a low-emissivity film, a coated laminated glass and a coated hollow glass, wherein the low-emissivity film comprises a first composite layer, a second composite layer, a third composite layer, a fourth composite layer, and an outermost protective layer; the first composite layer, the second composite layer, the third composite layer, and the fourth composite layer respectively comprise a dielectric layer, a functional layer, and a transition layer; the first dielectric layer is configured to block diffusion of destructive atoms into the first functional layer during heat treatment, and the second dielectric layer, the third dielectric layer, and the fourth dielectric layer are configured to increase an optical path of visible light; the first functional layer and the fourth functional layer are made of a silver-indium alloy material, and the second functional layer and the third functional layer are made of a silver material; the transition layer is made of a mixture material of a zinc- aluminum alloy and a zinc-tin alloy; the outermost protective layer comprises a third sub-layer prepared according to a single-rotating magnetron sputtering cathode equipped with a Hipims power supply, which can improve the surface mechanical properties and thermal stability of the film layers.

The application discloses a kind of heating and heat dissipation bidirectional personal thermal management fabric and preparation method thereof, belong to thermal management fabric design technical field.The main surface of fabric is sprayed with a layer of amorphous structure photonic crystal coating, the reflectivity of fabric in visible light near infrared band and the emissivity in mid-infrared band are improved, the physical coloring of no thermal burden is realized on the surface of fabric to meet the demand of diversification and beauty of textile, the MXene nanosheet of low emissivity is sprayed on the other side of fabric, the passive radiation heating performance, photothermal conversion performance and joule heating performance of MXene are used to realize the heating thermal management of fabric, the fabric of the application realizes dynamic personal thermal management, that is, compared with the temperature of simulated human skin, the temperature can be reduced by 10.2 DEG C in summer, and the temperature can be increased by 21.4 DEG C in winter by combining the heating effect of multiple modes, to provide greater flexibility for personal thermal management under different environmental conditions.

A space active optical cable (SAOC) includes a cable including one or more optical fibers, and two or more electrical transceivers on opposing ends of the cable and interconnected by the cable. Each of the electrical transceivers includes an enclosure that encloses one or more light sources, one or more light detectors, and control electronics. Also included in the enclosure are a coupling medium to couple light into and out of the one or more optical fibers. The coupling medium can be reflecting surface or an on-axis mount. The enclosure provides a suitable heat propagation and electromagnetic interference (EMI) shielding, and the cable and the two or more electrical transceivers are radiation resistant. SAOC features optionally support a health check algorithm that allows trending optical performance in the absence of an optical connector and a potential surface treatment to increase nominally low emissivity of an EMI conductive surface.

A tungsten-doped vanadium dioxide layer radiant heat management film comprises a metal base layer; the tungsten-doped vanadium dioxide layer is arranged above the metal base layer; the first germanium layer is arranged above the tungsten-doped vanadium dioxide layer; the zinc sulfide layer is arranged above the germanium layer; the quasi-periodic structure layer is arranged above the zinc sulfide layer, and the quasi-periodic structure layer is formed by alternately stacking calcium fluoride layers and second germanium layers; through the room temperature phase change characteristic of the tungsten-doped vanadium dioxide layer, passive switching of the tungsten-doped vanadium dioxide layer radiant heat management film between relatively high emissivity cooling in the daytime and relatively low emissivity heat preservation at night is achieved. Through the room temperature phase change characteristic of W-VO2, passive switching between daytime high-emissivity cooling and night low-emissivity heat preservation is achieved, and the problems that in the prior art, a radiant heat management device is low in emissivity and cannot be manufactured on a large scale are solved.

The invention discloses a narrow-temperature-zone and high-regulation-ratio thermal control system suitable for a deep space environment. The thermal control system can automatically regulate a thermal control object to be in a comfortable temperature range of 0-40 DEG C in a deep space extreme high-low-temperature environment. A binary two-phase heat transfer device is adopted to be uniformly connected with a controlled object and a radiation heat dissipation surface, and a thermally induced variable emissivity coating is arranged on the radiation heat dissipation surface, so that a temperature self-adaptive controllable radiator is formed. When the system faces an environment with large self-heating and strong heat flow outside the space, the temperature of the system is above a high temperature point Th, the binary two-phase heat transfer device is conducted to transfer heat, and the thermally induced variable emissivity coating is at high temperature and high emissivity to efficiently transfer and dissipate the heating amount of the equipment; when the system faces an environment with small self-heating and weak heat flow outside the space, the temperature of the system is below a low-temperature point Tc, the binary two-phase heat transfer device is blocked, the thermally-induced variable emissivity coating is in a low-temperature and low-emissivity state, heat is stored in the equipment, and it is guaranteed that the lower temperature limit of the electronic equipment is maintained in a comfortable working range.

The present application relates to a kind of hot switch intelligent phase change wall, including heat transfer control board block with heat pipe as core, energy storage board block with phase change wall as core, characterized by: the indoor and outdoor sides of the hot switch intelligent phase change wall are heat transfer control board block, and gravity heat pipe is arranged in, the working medium is in the heat pipe, the inner surface of the heat transfer cavity is provided with low emissivity material, the heat transfer cavity of the heat pipe is provided with control device, control device is made of multiple groups of connecting pieces, can be switched by changing the space position state of connecting piece and heat pipe disconnect or connection state, to control the heat transfer of heat pipe start-stop and the heat transfer direction of heat pipe when working.The phase change energy storage board block is located in the middle of heat transfer control board block on the inside and outside of wall, can store / release heat using the high latent heat performance of phase change material, and the phase change wall is provided with metal fin.

The application relates to a low-layer one-dimensional infrared low-emissivity film structure which is insensitive to polarization and incident angle. The technical scheme is as follows: the low-layer one-dimensional infrared low-emissivity film structure is composed of a one-dimensional lambda / 4 periodic photonic crystal structure and a quasi-periodic photonic crystal structure, the last layer of the one-dimensional lambda / 4 periodic photonic crystal structure is connected with the top layer of the quasi-periodic photonic crystal structure. The low-layer one-dimensional infrared low-emissivity film structure is expressed by the following formula: (AB) 2 (CD) 5 ; wherein: (AB) 2 represents the one-dimensional lambda / 4 periodic photonic crystal structure, (AB) represents a sub-periodic photonic crystal structure in which Ge and ZnO are arranged in sequence; (CD) 5 represents the quasi-periodic photonic crystal structure, and (CD) represents a sub-quasi-periodic photonic crystal structure in which Ge and ZnO are arranged in sequence. The application has the characteristics of few layers, short production cycle, high reliability, realization of double-band low emission and insensitivity to polarization and incident angle.

The application discloses a thermal spraying flame heat recovery and recycling device based on emissivity regulation, and aims at solving the problems of serious flame heat dissipation, low energy utilization rate and insufficient melting of high melting point powder in the existing plasma thermal spraying process. The thermal spraying flame heat recovery and recycling device is provided with a heat recovery cover at the outlet end of a plasma thermal spraying device, the heat recovery cover is a high-temperature-resistant shell, the high-temperature-resistant shell is internally provided with a hollow cavity, the hollow cavity forms a vacuum heat insulation interlayer, the inner surface of the cover of the high-temperature-resistant shell is provided with a high-emissivity coating, the high-emissivity coating is a perovskite coating, a spinel coating or a pyrochlore / defect fluorite coating, the outer surface of the cover of the high-temperature-resistant shell is provided with a low-emissivity coating, and the low-emissivity coating is a metal-doped ZnO coating. The thermal spraying flame heat recovery and recycling device can not only significantly improve the energy utilization rate of the thermal spraying flame, but also improve the coating quality and service protection performance.

The application provides a coated glass and a vehicle window glass. The coated glass comprises a substrate and a low-transmittance thermal insulation layer arranged on at least one surface of the substrate, the low-transmittance thermal insulation layer comprises at least two medium layers and at least two absorption functional layers arranged in a stack, and each absorption functional layer is located between two adjacent medium layers; the visible light transmittance of the coated glass is less than or equal to 15%. The application sets the low-transmittance thermal insulation layer, so that the coated glass has a low visible light transmittance TL and a low emissivity e, can replace a dark PVB film in the related art, and has the effects of low cost, simple manufacturing and production, and privacy protection. In addition, the coated glass can be used alone as the vehicle window glass or be made into the vehicle window glass as the vehicle window glass, can block heat, and the setting of a sunshade curtain in a vehicle is omitted, so that a greater internal height space of the vehicle is obtained, and the use experience of a user is improved.

A glass article comprising: at least one transparent substrate comprising a first major surface and an opposing second major surface, wherein the first major surface is coated with a conductive layer, wherein the conductive layer is absent in one or more regions of the first major surface, wherein i) the one or more regions of the first major surface, and / or ii) at least a portion of a corresponding region of the opposing second major surface, are coated with a low emissivity material, and wherein the one or more regions allow electromagnetic radiation to pass through the glass article.

This invention relates to the field of coated glass technology, and discloses a temperable coated glass, its preparation method, and its applications. The temperable coated glass provided by this invention achieves the highest level of film adhesion by introducing a Zr-Si-N substrate layer and optimizing the interface design, solving the problem of easy film peeling and ensuring the product can withstand high-temperature tempering processes. A composite protective layer composed of nickel-chromium alloy and aluminum-doped zinc oxide is used to encapsulate the Ag functional layer, resulting in extremely low performance degradation after rigorous dual 85 testing, and a breakthrough improvement in weather resistance and oxidation resistance. By introducing multiple light-absorbing adjustment layers, the indoor reflectivity of the tempered glass product is successfully reduced to below 15% and the outdoor reflectivity to below 9% without significantly affecting the light transmittance, greatly reducing light pollution and visual glare. The product possesses excellent energy-saving characteristics such as low emissivity and low shading coefficient while maintaining excellent optical uniformity and color stability.

A substrate processing apparatus includes a holding unit that holds a substrate or a calibration substrate, a heating unit that heats the substrate or the calibration substrate held by the holding unit, and a radiation temperature sensor that detects infrared radiation emitted from the substrate or the calibration substrate and measures temperature distribution of the substrate or the calibration substrate. The calibration substrate includes a first main surface facing the heating unit and a second main surface opposite the first main surface and measured for temperature distribution by the radiation temperature sensor. The second main surface includes a first portion where a first material is exposed, and a second portion where a second material with a lower emissivity than the first material is exposed.

The invention discloses a preparation method of a broadleaf plant leaf imitating camouflage coating fabric. The problem of compatibility of hyper-spectrum and thermal infrared camouflage is solved through the design of a multi-layer composite structure. The fabric is composed of a base fabric layer, a high-reflection layer, a hyper-spectral camouflage layer and a low-emissivity layer, wherein the high-reflection layer compensates near-infrared band absorption and maintains vegetation spectral characteristics; the hyperspectral camouflage layer simulates a spectral curve of a broad-leaved plant leaf in a 400-2500nm wave band, the fitting degree reaches 0.95 or above, and the GJB 1411A-2015 primary standard is met; the low-emissivity layer realizes 8-14 [mu] m band thermal infrared low emissivity while visible light is highly transparent, and the temperature difference between the low-emissivity layer and plant background radiation in a daily period is less than 5 DEG C. According to the method, near-infrared absorption of the silver nanowires is counteracted through optical path cooperative regulation and control, unification of visible light-near infrared high-precision vegetation imitation and thermal infrared stable camouflage is achieved, the environmental stability is good, humidity and heat resistance, high and low temperature resistance and mold resistance are achieved, the 60-degree glossiness of visible light is smaller than or equal to 5, and the full-time camouflage requirement of a complex battlefield is met.

The utility model relates to the field of laser radars, in particular to a solid-state laser radar based on iTOF and dTOF point cloud fusion, which is characterized in that different working wavelength sums are set to ensure that an iTOF laser radar module and a dTOF laser radar module do not interfere with each other when working at the same time; through setting a control and data processing module, work of a first light source and a second light source is controlled, imaging data of an iTOF detector and a dTOF detector are received, a structured light algorithm is operated, multi-source data fusion is carried out, and finally point cloud data in a space environment is obtained. The distance measurement information of the dTOF laser radar module is adopted to assist in eliminating the multipath crosstalk problem of the iTOF laser radar; a low-emissivity target area which cannot be seen clearly by the iTOF laser radar is filled through distance measurement information of the dTOF laser radar module; the problems that an iTOF laser radar has multi-path interference and poor sensitivity, and when the target reflectivity is low or the distance is long, the ranging performance is sharply reduced are solved.

The utility model discloses a low-radiation film which comprises a base film made of ETFE, a protective layer is arranged on the outer side of the base film, a dielectric layer and a radiation layer are arranged on the inner side of the base film, the number of the dielectric layer and the radiation layer is one, and the dielectric layer and the radiation layer are sequentially arranged in the direction away from the base film. The energy-saving heat-insulating and heat-reducing window can effectively block radiation heat exchange of infrared heat, achieves good heat-insulating and heat-reducing effects, relieves the problem of indoor overheating in summer, reduces energy consumption of a building, and is long in service life.

The application belongs to the technical field of metamaterials, and particularly relates to a stealth super surface with synergistic regulation of infrared and microwave emissivity, comprising a plurality of periodically arrayed basic units, wherein the basic unit comprises an infrared emissivity regulation layer and a microwave emissivity regulation layer which are sequentially stacked from top to bottom, and the microwave emissivity regulation layer comprises a second ITO layer, a third ITO layer and a fourth ITO layer which are sequentially stacked from top to bottom; the application can simultaneously realize low emissivity in the infrared frequency band and high emissivity in the microwave frequency band, thereby reducing the visibility of the target in the infrared thermal imager and the microwave radiometer.

Head-up display glass and a head-up display system are provided. The head-up display glass includes outer glass, inner glass, an interlayer, and a reflective coating. The interlayer is disposed between a second surface of the outer glass and a third surface of the inner glass. The reflective coating is disposed on a fourth surface of the inner glass. The reflective coating can reflect P-polarized light. The reflective coating includes at least one low-emissivity layer and at least one laminated structure that are stacked in sequence. Each laminated structure includes a high-refractive-index layer and a low-refractive-index layer that are stacked in sequence. In each laminated structure, the high-refractive-index layer is closer to the fourth surface than the low-refractive-index layer. A refractive index of the high-refractive-index layer is greater than or equal to 1.8. A refractive index of the low-refractive-index layer is less than 1.8.

A resonator device includes: a resonator element; a heat generating unit; a first package including a first base at which the resonator element and the heat generating unit are disposed, and a first lid bonded to the first base so as to accommodate the resonator element between the first lid and the first base; and a low emissivity layer that is disposed at an inner surface of the first lid and that has an emissivity lower than an emissivity of the first lid. In addition, a constituent material of the first lid is silicon, and the emissivity of the low emissivity layer at room temperature is less than 0.5.

The present application relates to a kind of preparation methods of non-iridescent structural color film with infrared anti-fake features. First, the aqueous solution of monodisperse microspheres is configured, then a small amount of MXene and carbon black material is added, and a mixed colloidal particle suspension is obtained. By using spray, spin coating or roll coating method, three-dimensional amorphous photonic crystal film is formed on the surface of the substrate by rapid evaporation of solvent. The black material absorbs light and scatters multiple times in the amorphous photonic structure, improving the color quality of the amorphous photonic crystal film and showing good non-iridescent structural color display. By using the better absorption in the solar spectrum and the extremely low emissivity in the mid-infrared band of MXene material, as well as the optical characteristic difference with carbon black and other materials, the structural color film realizes the thermal anti-fake property. After micro-heating, the hidden information can be read by an infrared camera.

The application discloses a preparation method of infrared and radar stealth fabric, comprising the following steps: S1, fabric is ultrasonically immersed, and is soaked by using an alkaline solution, is washed and dried, and a pretreated fabric is obtained; S2, wave-absorbing powder and coating glue are mixed, a thickening agent is added, and the mixture is coated on the fabric, and the fabric is dried, and a composite fabric is obtained; S3, a MAX phase material is etched, and an MXene dispersion liquid is obtained; S4, coating glue is coated on the composite fabric, the MXene dispersion liquid is coated, and the fabric is dried, and the coating is repeated 1-3 times, and an MXene / wave-absorbing powder / fabric is obtained. By using the wave-absorbing powder to form a radar stealth layer, and by coating polyurethane coating glue and then coating MXene, the stability and continuity of the MXene film are ensured, the emissivity is reduced, and infrared stealth is realized, that is, the integrity of the MXene structure is not damaged by traditional mixed coating, and by accurately controlling the amount of MXene, the infrared low emissivity and radar wave absorption performance are balanced, and high-performance infrared and radar dual-band stealth is realized.