322 results about "Optical transparency" patented technology

The invention relates to the field of optical protection materials, and provides a transparent film with laser eavesdropping prevention performance and a preparation method thereof.The transparent film is composed of surface-modified doped tungsten oxide nanosheets, amino-isocyanate bifunctional lithium niobate nanowires, urethane acrylate, an ultraviolet light absorber, a silane coupling agent, a dispersing agent and a flatting agent; the molybdenum-doped tungsten oxide nanosheets are obtained through silane coupling modification after hydrothermal synthesis, and the lithium niobate nanowires are prepared through a gradient modification process of hydrothermal synthesis-silane coupling-isocyanate grafting-phenol end capping. A modified nano material is uniformly dispersed in a resin matrix through an ultrasonic dispersion composite technology, and through blade coating forming, ultraviolet curing and constant-temperature and constant-humidity post-treatment, compared with the prior art, the scheme overcomes the problems that a traditional protective film is insufficient in optical transparency, laser eavesdropping prevention function and dynamic viscoelasticity, and is suitable for the field of high-end security and protection.

The invention discloses an automobile heat-insulating film and a preparation method thereof, and belongs to the technical field of heat-insulating films, and the heat-insulating film is prepared by introducing nanometer indium tin oxide, nanometer tungsten oxide, nanometer titanium oxide, nanometer zinc oxide and other nanometer oxides and combining with a modified material. The preparation method comprises the following steps: mixing nano oxide with water, performing ultrasonic dispersion, adding a coupling agent and a modified material to form composite slurry, mixing the composite slurry with polymers such as polyethylene glycol terephthalate and a plasticizer, coating the surface of glass with the mixture, and drying. Compared with the prior art, the obtained heat insulation film not only has excellent optical transparency and heat insulation effect, but also shows good mechanical property and environmental erosion resistance, and meets the strict requirements of modern automobiles on heat insulation and protection performance.

The invention provides a high-frequency band-pass radar and infrared dual-stealth optical transparent metamaterial, and aims to overcome the defect that an existing stealth material cannot have optical transparency, infrared low emission, microwave broadband absorption and high-frequency band-pass at the same time. The antenna is formed by periodically arranging a plurality of structural units, and each structural unit sequentially comprises a low infrared emission layer, a first transparent dielectric substrate, a radar wave absorbing layer, a second transparent dielectric substrate and a frequency selection wave-transparent layer from top to bottom; the low infrared emission layer and the radar wave absorbing layer are respectively composed of a square patch array made of a transparent conductive material and a low duty ratio circular ring; the frequency selection wave-transparent layer is composed of a square ring aperture type metal mesh. Optical transparency, infrared stealth and radar stealth are integrated, meanwhile, the band-pass performance is achieved in the high-frequency guidance wave band, and the high application prospect is achieved in the field of actual engineering.

The invention discloses a gasket structure capable of eliminating real-shot stray light, which comprises the following steps of: S1, designing a chamfering structure, namely, accurately setting the thickness of an ultra-thin gasket to be 0.022 / 0.033 mm, manufacturing the chamfering structure in an inner hole, and performing rigorous optical simulation and experimental optimization; s2, material selection and surface treatment are coordinated, material screening focuses on the characteristics of low reflectivity and high optical stability, and optical-grade polycarbonate has good optical transparency, low refractive index and excellent mechanical performance. The light propagation path is changed through unique design, and the influence of stray light on imaging is reduced to the maximum extent. By effectively eliminating the stray light, the image contrast of the imaging system is improved, the definition is obviously improved, more image details can be clearly presented, and the application scene requirement harsh for the imaging quality is met. The reduction of stray light interference helps to reduce the noise level of an optical system, improves the stability and reliability of the system, reduces the equipment fault and maintenance frequency caused by the stray light problem, and reduces the use cost.

The invention provides an optical transparency-optical confinement composite nanofiber membrane as well as a preparation method and application thereof. The optical transparency-optical confinement composite nanofiber membrane comprises a PDMS (Polydimethylsiloxane) / PS (Polystyrene) / TPU (Thermoplastic Polyurethane) nanofiber membrane and a photothermal conversion material layer loaded on the PDMS / PS / TPU nanofiber membrane, the PDMS / PS / TPU nanofiber membrane is prepared by taking PDMS, PS and TPU as raw materials and adopting an electrostatic spinning technology; the photothermal conversion material layer comprises honeycomb porous carbon nanofibers and PDA (Personal Digital Assistant). The optical transparency-optical confinement composite nanofiber membrane and the PDMS / PS / TPU nanofiber membrane have excellent light transmittance and hydrophobicity, the photo-thermal conversion material layer has excellent light absorptivity and high photo-thermal conversion capacity, and the optical transparency-optical confinement composite nanofiber membrane has high membrane flux when being used for photo-thermal membrane distillation desalination. And the photo-thermal film is excellent in distillation performance stability.

The invention provides a transparent thermoplastic polyurethane elastomer and a preparation method thereof, and belongs to the technical field of thermoplastic polyurethane elastomers, the preparation method comprises the following steps: uniformly mixing polyether polyol and polyether polyol, and dehydrating under vacuumizing and heating conditions to obtain a component A; aliphatic isocyanate is used as a component B; uniformly mixing the dehydrated 1, 4-butanediol and a tertiary amine catalyst to obtain a component C; uniformly mixing the component A, the component B and the component C, injecting into a mold, cooling, demolding, and finally heating and vulcanizing to obtain the transparent thermoplastic polyurethane elastomer. The polyether polyol and the polyester polyol are compounded to serve as a two-component soft chain segment, the aliphatic isocyanate and the 1, 4-butanediol serve as a hard chain segment, the proportion and the structure of the polyether polyol and the polyester polyol are changed, the compatibility of the two is improved, the performance advantages of the polyether polyol and the polyester polyol are brought into full play, and the thermoplastic polyurethane elastomer with both mechanical performance and optical transparency is synthesized.

To provide an electromagnetic wave absorber having a simple structure, high electromagnetic wave absorption performance, a wide absorption band, and optical transparency.SOLUTION: An electromagnetic wave absorber 10 includes a dielectric layer 21 containing a light-transmitting dielectric material, a patch element 22 arranged on one main surface of the dielectric layer 21, and a reflective film 23 formed on the other main surface of the dielectric layer 21. The dielectric layer 21 has a thickness in the range of 1 / 100 to 1 / 10 of the wavelength in the dielectric layer of the electromagnetic wave to be attenuated.SELECTED DRAWING: Figure 1

The present invention provides a modular “fabric-unit” with preferred embodiments for the construction of a multitude of different self-supporting game boards of different types, sizes and shapes, wherein the fabric-unit comprises an array of 3-dimensional square “fabric-cells” for game tiles or 3D game pieces and game board accessories, mounting slots in the form of cross-connectors for attaching game board accessories and a background graphic layer, a plurality of hermaphroditic edge connectors on all sides of the fabric-unit, whereby the hermaphroditic edge connectors make a strong connection with hermaphroditic edge connectors of an adjacent inverted fabric-unit of the same construction, and the fabric-unit comprising small profile crossbars and walls and preferably high optical transparency material to increase visibility of a background graphic layer, and matching edge-panels for providing a cosmetic perimeter to the game board and for attaching a background graphic layer.

The utility model relates to the technical field of biological tissue engineering, in particular to an organ chip platform integrated with optical tweezers, which is used for assembling and culturing three-dimensional cell tissues and comprises an organ chip with optical transparency and holographic optical tweezers integrated with the organ chip. The organ chip is horizontally arranged and comprises an upper-layer plate, a middle-layer plate and a lower-layer plate which are sequentially stacked, the middle-layer plate is provided with at least two first culture pools used for inducing and differentiating stem cells into different types of cells and at least one second culture pool used for assembling and culturing the different types of cells, and the lower-layer plate is provided with at least two second culture pools used for assembling and culturing the different types of cells. The channel is connected with the first culture pond and the second culture pond; and an objective lens of the holographic optical tweezers faces the top surface or the bottom surface of the organ chip and is used for capturing, moving and assembling cells in the first culture pool or the second culture pool. According to the utility model, the dependence on a micro-pattern processing technology can be reduced, the cost is reduced, and the regulation and control capability on an organoid tissue structure is improved.

Through sourcing net-primary productivity additive algae-based biomass feedstock, the exclusive use of renewable energy in processing, and the appropriate formulation and processing, a novel algae-derived bio-based plastic is both carbon-negative and provides some performance advantages over existing algae-based film plastics especially with regard to optical clarity. A system may be provided that produces a carbon-negative bioplastic. The production of the bioplastic in a process chamber may be controlled by an electronic controller. The electronic controller may be controlled by a host system, such a server. The electronic controller may be configured to direct production of the bioplastic in the process chamber using hydrocolloid, which is derived from algae.

The invention discloses a preparation method of a flexible magneto-optical composite material which is low in cost and easy to form, Fe3O4 or CoFe2O4 or NiFe2O4 nanoparticles which have a strong magneto-optical effect but are extremely easy to agglomerate are uniformly dispersed in ZIF-8 with fixed pores by adopting an in-situ symbiosis technology, and PgC5Cu is used for modifying the surface of the ZIF-8 to serve as a bridging agent, so that the ZIF-8 is uniformly dispersed in PMMA (Polymethyl Methacrylate); and the composite material with excellent magneto-optical characteristics is successfully constructed. The innovative design not only maintains the original structural stability and optical transparency of the material, but also endows the material with unprecedented flexibility and machinability, and provides possibility for realizing light weight, portability and flexibility of magneto-optical devices. Compared with traditional pure inorganic magneto-optical crystals, magneto-optical glass and other materials, the preparation method is simple, the production period is short, energy consumption and cost are remarkably reduced, and the material has the advantages of being easy to form, high in flexibility and the like and can adapt to wider application scenes.

The invention belongs to the technical field of wireless communication and microwave antennas, and particularly discloses a transparent antenna for receiving ADS-B (Automatic Dependent Surveillance-Broadcast) signals, which comprises a phase delayer and is formed by matching a miniaturized coplanar waveguide feed inverted F transparent antenna and a coplanar waveguide feed bent line transparent antenna. The substrates of the two antennas are transparent acrylic substrates, and the antenna body structure and the grounding plate are made of an extremely fine metal grid structure used by film photoetching, so that the transparency of the antennas is ensured by the method. According to the invention, 83% of optical transparency in the working bandwidth can be realized, 1090MHz aircraft ADS-B signals can be received, the structure is simple, the size is small, the weight is light, and the concealment is strong.

The invention discloses an ultra-wideband absorber which can be applied to the technical field of microwave metamaterial absorbers. A plurality of periodically arranged unit structures are arranged, an upper layer structure, a middle layer structure and a lower layer structure are arranged in each unit structure, then a PMMA dielectric layer, an I TO resistance film resonance layer and a PET dielectric layer are arranged in each of the upper layer structure, the middle layer structure and the lower layer structure, and the PET dielectric layer is arranged below the PMMA dielectric layer. The I TO resistive film resonance layer is etched on the PET dielectric layer, the I TO resistive film resonance layer in the upper layer structure is set to be a circular square ring gear type pattern, the I TO resistive film resonance layer in the middle layer structure is set to be a polygonal patch type pattern, and the I TO resistive film resonance layer in the lower layer structure is set to be a mesh grid type pattern. Therefore, the functions of ultra-wideband absorption, optical transparency, large-angle incidence, polarization angle polarization insensitivity, easy preparation and low manufacturing cost can be realized.

The invention discloses a three-junction three-terminal laminated cell and electric equipment. The three-junction three-terminal laminated cell comprises a silicon-bottom cell, a silicon-top cell, a silicon-top cell and a silicon-bottom cell, the first connecting layer is arranged on the silicon-based battery; the middle-band-gap perovskite cell is arranged on one side, far away from the silicon-bottom cell, of the first connecting layer; the second connecting layer is arranged on one side, far away from the silicon-bottom cell, of the middle-band-gap perovskite cell; the wide-band-gap perovskite battery is arranged on one side, far away from the silicon-bottom battery, of the second connecting layer; the first electrode is arranged on one side, far away from the silicon-bottom cell, of the wide-band-gap perovskite cell; and the second electrode and the third electrode are respectively arranged on one side, far away from the middle band gap perovskite battery, of the silicon-bottom battery. According to the three-terminal three-junction laminated cell structure, efficient utilization of photons can be guaranteed, high optical permeability of the cell can be guaranteed, and efficient power generation of the cell under the double-sided condition can be guaranteed.

The invention discloses a highly-transparent bio-based polyurethane fluoride-free antifouling coating and a preparation method and application thereof.The highly-transparent bio-based polyurethane fluoride-free antifouling coating is prepared by taking tannic acid (TA) as biological polyol, hexamethylene diisocyanate trimer (HDIT) as a cross-linking agent and monohydroxy polydimethylsiloxane (PDMS-OH) as a low-surface-tension material through thermocuring cross-linking, so that the highly-transparent bio-based polyurethane fluoride-free antifouling coating is prepared. And the tannic acid-based polyurethane fluoride-free antifouling coating is prepared. The coating shows up to 99% of optical transparency, has an ultraviolet shielding effect, and has excellent self-cleaning, anti-doodling and anti-artificial fingerprint pollution capabilities, and water, hexadecane, vegetable oil and pump oil easily slide off from the surface without traces. And even if the coating is repeatedly written and erased for 500 times, the coating still keeps excellent anti-graffiti performance. Due to the excellent adhesive force of the TA, the TA can be applied to various base materials. When the coating is bent and folded, the coating is still kept complete, the coating does not crack or peel off, and the coating has a wide application prospect.

The invention relates to a fluorine-free transparent self-cleaning solid lubricating coating and a preparation method thereof.The solid lubricating coating is formed by coating a substrate with wax-based suspension liquid and curing the wax-based suspension liquid, the wax-based suspension liquid is prepared by dispersing wax micro-powder, a hydrophobic adhesive and hydrophilic nano-silicon dioxide in a solvent, the wax micro-powder provides roughness and hydrophobicity, and the hydrophobic adhesive and the hydrophilic nano-silicon dioxide are dispersed in the solvent; the hardness of the coating and a certain water contact angle are increased by hydrophilic nano silicon dioxide, so that the coating has good optical transparency, excellent self-cleaning performance, hydrophobicity, stability and durability, preferably, the transparency can reach 99%, the hydrophobic performance can still be kept after abrasive paper abrasion, gauze abrasion, sand impact, water impact and acid rain impact, and the service life of the coating is prolonged. Meanwhile, the preparation method is simple and environment-friendly, fluorine and VOC emission is avoided, the addition amount of the wax is not limited by preparation, the wax can be flexibly adjusted, the wax can be suitable for multiple fields such as solar panels, building outer walls and automobile surfaces, the power loss of the photovoltaic panel subjected to self-cleaning preferably can be smaller than or equal to 1%, and wide commercialized application prospects are achieved.

The invention discloses an optical monomer and a preparation method thereof, a composition, a resin material and a preparation method thereof. The optical monomer provided by the invention comprises a quaternary carbon structure and a side chain connected with the quaternary carbon structure through an ester bond. The side chain comprises a thioether chain segment connected with an ester bond, an aromatic group connected with the thioether chain segment and an epoxy group connected with the thioether chain segment. The optical monomer provided by the embodiment of the invention takes a quaternary carbon structure as a core skeleton, and a side chain sequentially comprises an aromatic group, a thioether chain segment and a terminal epoxy group. A thioether structure with high polarizability and an aromatic group are introduced into the molecular design of the optical monomer, so that the refractive index and the optical transparency of a resin material are remarkably improved. And the rigidity of the epoxy aromatic ring is beneficial to improving the thermal stability and mechanical strength of the resin material. The epoxy group at the tail end can react with conventional epoxy resin to form a compact network structure, so that the stability of the resin material is improved, and the yellowing tendency is reduced.

The invention belongs to the field of hydrophobic coatings, and particularly relates to a preparation method and application of a transparent super-hydrophobic coating, the preparation method comprises the following steps: blending a polyvinylidene fluoride-trifluoroethylene copolymer, PDMS and a solvent to obtain a spinning solution, and forming a super-hydrophobic transparent coating on the surface of a substrate by electrostatic spinning; the mass ratio of the polyvinylidene fluoride-trifluoroethylene copolymer to the PDMS is (1: 0)-(1: 10), and the concentration of the polyvinylidene fluoride-trifluoroethylene copolymer and the PDMS in the spinning solution is 5-30wt%. The accelerant layer and the cross-linking agent layer are formed on the substrate in advance, the cross-linking agent layer can increase the connection strength between the accelerant layer and the substrate, the cross-linking agent layer is cross-linked with the polyvinylidene fluoride-trifluoroethylene copolymer and PDMS in the electrostatic spinning solution, and the super-hydrophobic coating formed through electrostatic spinning is of a mutually cross-linked nanofiber structure, so that the super-hydrophobic coating has the advantages that the electrostatic spinning effect is good, and the service life of the super-hydrophobic coating is prolonged. The fibers are mutually crosslinked to form a net-shaped structure, and a large number of pores exist in the net-shaped structure, so that the super-hydrophobic coating with super-hydrophobicity and optical transparency is formed.

The invention discloses a protective base film for a polaroid and a preparation method of the protective base film, and belongs to the technical field of optical display equipment protective films. The protective base film comprises an antistatic PET base material layer and a self-adhesive layer, the antistatic PET base material layer is prepared by blending optical-grade PET slices and antistatic master batches, the master batches are prepared by taking ionic liquid dihydric alcohol as a comonomer, and the base film is endowed with lasting and stable intrinsic antistatic performance; the self-adhesive layer is formed by melting and blending a polyurethane acrylate prepolymer, a modified montmorillonite filler, other matrix materials and auxiliaries according to a specific ratio and carrying out an online UV curing process. Through innovative material design and an integrated forming process, the prepared protective base film has excellent optical transparency, lasting antistatic property, appropriate bonding strength, clean stripping property and outstanding damp-heat aging resistance, the comprehensive performance is remarkably superior to that of a traditional gluing protective film, and the production process is more environment-friendly and efficient.

The invention relates to the field of electrolyte materials, in particular to a polymer / ionic liquid based gel electrolyte material and a preparation method and application thereof. The polymer / ionic liquid-based gel electrolyte material comprises polymer / ionic liquid nanofibers and an alkali metal salt solution, wherein the polymer / ionic liquid nanofiber comprises a thermoplastic polymer of which the surface is modified by imidazole type ionic liquid. The polymer / ionic liquid nanofiber prepared by the invention has a maximum all-trans polar conformation, and then interacts with an alkali metal salt electrolyte, so that the electrolyte material is endowed with extremely high optical transparency while the interfacial ionic conductance is improved. An electrochromic device assembled by the prepared polymer / ionic liquid based gel electrolyte material and an electrochromic electrode material shows excellent color change, and shows good performance at-20 DEG C to 60 DEG C.

The invention belongs to the technical field of composite materials, and discloses a transparent weather-resistant glass fiber reinforced thermoplastic-based composite material and a preparation method thereof.The preparation method comprises the following steps that 1, polyethylene glycol terephthalate and poly (ethylene isophthalate) are subjected to drying, melt blending and extrusion forming respectively to prepare a polymer; (2) drying and mixing the polymer prepared in the step (1) and polyadipyl m-xylylenediamine to prepare a mixture, adding a compatilizer, and performing melt blending and compression molding to prepare a film; and (3) alternately laying the film prepared in the step (2) and the glass fiber material, and then carrying out hot pressing treatment to obtain the transparent weather-resistant glass fiber reinforced thermoplastic matrix composite material. According to the prepared transparent weather-resistant glass fiber reinforced thermoplastic-based composite material, the light transmittance reaches 89% at most, the haze reaches 4.2%, the thermal shrinkage rate reaches 1.1%, the tensile strength is 405 Mpa, and the transparent weather-resistant glass fiber reinforced thermoplastic-based composite material has high optical transparency, good weather resistance and excellent mechanical properties.

A self-healing polyurethane-based coating composition, a polyurethane-based coating film including the same, and methods of manufacturing the coating composition and the coating film, in which design of an oligomer containing a disulfide functional group is capable of achieving self-healing performance at room temperature and ensuring appropriate fluidity, whereby a coating film can be manufactured by spraying. The composition further includes a polyisocyanate hardener, and the oligomer is formed by polymerizing a carbonate-type diol, an alicyclic isocyanate, and an aromatic disulfide-type diol. This specific molecular design provides high self-healing efficiency, enhanced optical transparency, and excellent mechanical stability. The coating film achieves a self-healing efficiency of 80% or more, a transmission rate of 85% or higher, and a sagging rate of 5% or less. The manufacturing process controls the molar ratios of hydroxyl (—OH) to isocyanate (—NCO) groups, optimizing cross-linking and ensuring durability in the final coating.

One or more devices for absorbing electromagnetic radiation are disclosed. The one or more devices include a substrate comprising a glass material. The substrate also includes a first pattern of a metal layer formed on a first surface of the substrate and a second pattern of a metal layer formed on a second surface of the substrate. The first pattern and the second pattern are different and features of the first pattern and the second pattern can be tunable to maximize optical transparency of the one or more devices and to maximize absorption of electromagnetic radiation having a target range of frequencies, such as one or more ranges of frequencies within the microwave portion of the electromagnetic spectrum.

The invention discloses a preparation method of a silicon dioxide-epoxy resin composite material, the acoustic impedance of the composite material is controlled by adjusting the volume fraction of the silicon dioxide-epoxy resin composite material, an ultrasonic transducer prepared by utilizing the composite material and a preparation process thereof, and an imaging system designed by utilizing the ultrasonic transducer. By designing the matching layer and the backing layer with specific acoustic impedance, seamless fusion of ultrasonic imaging and photoacoustic imaging is realized, the transducer has ultrahigh sensitivity, broadband characteristic and high optical transparency, shows bimodal imaging capability of high contrast and high resolution, and solves the problem that a traditional transparent ultrasonic transducer is insufficient in acoustic performance.

The invention relates to the field of silicone hydrogel materials, in particular to a contact lens silicone hydrogel material with good flexibility and a preparation method thereof. The preparation method comprises the following steps: firstly, carrying out cation ring opening polymerization under 350-370 nm UV light to form a prepolymer A containing unreacted epoxy groups and vinyl; and then mixing the prepolymer A with an amido-containing hydrophilic monomer, a free radical cross-linking agent and a photothermal initiator, and carrying out second-stage polymerization under 380-410 nm UV light to form a three-dimensional network structure with an ether bond flexible interface and C-C bond strength. The method breaks through the phase separation bottleneck of traditional single-stage polymerization, the phase separation size is reduced, and the optical transparency and stability are improved. Through chemical bridging of an epoxy group and an amide group, molecular-level bonding of a siloxane phase and a water phase is realized, and flexibility and wearing comfort are improved. By introducing the flexible chain segment regulator, the flexibility of the molecular chain is enhanced, the modulus is reduced, and meanwhile, high oxygen permeability and low protein adsorbability are kept.

The invention relates to the technical field of functional materials for laminated glass, in particular to a high-damping intermediate film and a preparation method thereof. The high-damping intermediate film comprises the following components in parts by weight: 100 parts of PVB (Polyvinyl Butyral) resin, 5-25 parts of TPU (Thermoplastic Polyurethane) resin, 30-40 parts of plasticizer, 5-15 parts of compatilizer, 0.1-1 part of antioxidant and 0.1-1 part of ultraviolet light absorber. The compatilizer is a polymer containing an epoxy functional group. According to the invention, the TPU resin with high damping property is introduced, and the compatilizer is utilized to enable the TPU resin to form a nanoscale dispersed phase in a PVB matrix, so that an efficient damping dissipation structure is constructed, and the damping dissipation capability of the material to sound energy (especially low and medium frequency noise) is remarkably enhanced. Therefore, the prepared intermediate film has a higher loss factor, the weighted sound reduction index of the intermediate film reaches 38dB or above, the traffic noise spectrum correction is-3dB or below, and meanwhile, excellent optical transparency and mechanical properties are kept.

The invention relates to the technical field of organ chips and tissue engineering, in particular to an organ chip platform integrated with optical tweezers and a three-dimensional cell assembling method, the platform comprises an organ chip with optical transparency and an optical tweezers system integrated with the organ chip; the organ chip comprises at least two induced differentiation culture pools and at least one assembly culture pool; the induced differentiation culture pool is used for respectively culturing the stem cells and inducing and differentiating the stem cells into at least two different types of cells; the optical tweezers system is used for capturing cells and moving the cells from the induced differentiation culture pool to the assembly culture pool; assembling the at least two different types of cells into an initial three-dimensional cell tissue according to the proportion, sequence and pattern structure in the target organ tissue in the assembly culture pool; the assembly culture pool is used for culturing the initial three-dimensional cell tissue to obtain the three-dimensional cell tissue with the target pattern structure. The technical threshold of the organ chip can be reduced, and the biological functionality of the organ chip is improved.

The invention discloses a microwave absorber compatible with microwave, infrared camouflage and optical transparency, and relates to the technical field of multi-spectrum compatibility and artificial intelligence. A first PET film is arranged on the top surface of a PMMA dielectric layer, an ITO square ring patch is arranged on the top surface of the first PET film, and an opening is formed in the ITO square ring patch; meanwhile, an ITO square patch with a cross-shaped gap is embedded in the top surface of the first PET film; the ITO square patch serves as a resistive film to realize microwave loss, the ITO square patch, the first PET film and the PMMA dielectric layer form a three-interlayer microwave absorber, meanwhile, the space radiation characteristic of infrared band electromagnetic waves is regulated and controlled by changing the size of the ITO square patch, and the ITO patch, the first PET film and the PMMA dielectric layer are all made of optical transparent materials to realize transparency of visible light band electromagnetic waves; the structure of the invention realizes compatible design of a microwave band, an infrared band and a visible light band at the same time, and can be widely applied to full-band camouflage of equipment.

The invention discloses protective glass, an isolating agent, application of the isolating agent and display equipment, the protective glass comprises a glass body and an isolating membrane layer arranged on at least one surface of the glass body, the isolating membrane layer can inhibit alkali precipitation reaction of soda-lime glass, especially alkali precipitation reaction on the back surface of the glass, and the isolating membrane layer can inhibit alkali precipitation reaction of the soda-lime glass, especially alkali precipitation reaction on the back surface of the glass. And the surface energy difference of the back surface of the glass can be eliminated, so that the whole surface energy becomes more uniform. The protective glass is good in optical transparency, clear in imaging, high in glossiness, low in Ra roughness and high in Rsm roughness, the problem of poor watermarks of a whole machine can be solved, and the protective glass can be adopted for improvement as long as soda-lime glass is used in other industries.

The invention provides a sodium ion specific fluorescence labeled transparent soil sample as well as a preparation method and application thereof, and belongs to the technical field of rock soil and geological engineering. The method comprises the following steps: firstly, sequentially carrying out hydrophilization treatment, solvent evaporation and dissolution on a sodion combined benzofuran isophthalate probe to obtain a probe mother solution; mixing the probe mother solution, a buffer solution, an inorganic sodium salt solution and a solvent to prepare a fluorescence labeling pore solution; and finally, mixing the sodium polyacrylate particles and the fluorescence labeled pore liquid, and performing vacuum saturation treatment to obtain the transparent soil sample. The transparent soil sample provided by the invention still keeps excellent optical transparency while having sodium ion specific response capability, so that a stable and reliable experimental medium is provided for in-situ, real-time and full-field observation of sodium ion migration.