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1676 results about "Ultraviolet" patented technology

Ultraviolet (UV) is electromagnetic radiation with wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays. UV radiation is present in sunlight, and contributes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack the energy to ionize atoms, it can cause chemical reactions and causes many substances to glow or fluoresce. Consequently, the chemical and biological effects of UV are greater than simple heating effects, and many practical applications of UV radiation derive from its interactions with organic molecules.

Packaging structure and preparation method of perovskite-back contact crystalline silicon laminated solar cell module

PendingCN120981095ACell layerElectrical battery
The invention relates to the technical field of solar cell module packaging, in particular to a packaging structure for a perovskite-back contact crystalline silicon laminated solar cell and a preparation method of the packaging structure. The packaging structure comprises a front light conversion glass layer, a perovskite top cell layer, an infrared light-transmitting adhesive film layer, a back contact crystal silicon bottom cell layer, an adhesive film layer and a packaging bottom plate which are arranged in sequence, and butyl rubber surrounding the perovskite top cell layer, the infrared light-transmitting adhesive film layer, the back contact crystal silicon bottom cell layer and the adhesive film layer is arranged between the front light conversion glass layer and the packaging bottom plate, and the near infrared transmittance of 780 nm to 1100 nm in the infrared transparent adhesive film layer is 93% to 100%. According to the packaging structure based on the front light conversion glass layer and the infrared light-transmitting adhesive film layer, regulation and control of short-wave ultraviolet and near-infrared spectrums are considered, and the photoelectric property and reliability of the perovskite-crystalline silicon four-terminal laminated device are remarkably improved.
Owner:QINGHAI HUANGHE HYDROPOWER DEV CO LTD XINING SOLAR POWER BRANCH +3

Transformer oil leakage detection method and device based on polarization-ultraviolet fusion imaging

The invention discloses a transformer oil leakage detection method and device based on polarization-ultraviolet fusion imaging, and the device comprises a housing, a support, a camera, an environment induction device, an overall controller, a power supply, a polaroid rotating wheel assembly, a lens seat assembly, and an image processor. And the motor driver, the illumination intensity sensor, the ultraviolet irradiance sensor, the image processor and the power supply are electrically connected with the integral controller respectively. According to the invention, a multi-angle polarization image and a non-polarization image in the same field of view can be acquired, and then polarization characteristics contained in an oil stain fluorescence signal are extracted and effectively distinguished from non-polarization characteristics of background light; in the daytime mode, the transformer oil leakage detection device can identify a target area with relatively high polarization intensity, and through image fusion enhancement processing, non-target background signals are significantly suppressed, and the fluorescence significance of an oil leakage characteristic area is improved.
Owner:BEIJING INST OF TECH

Composite cable

PendingCN121905615APlastic/resin/waxes insulatorsPower cables including communication wiresCopper conductorTinning
The invention relates to a composite cable, and relates to the technical field of cables, the composite cable comprises a conductor layer, a composite insulating layer, a waterproof layer, a weather-proof sheath layer and an armor layer from inside to outside in sequence, the conductor layer comprises at least six tinned copper conductors, the tinned copper conductors are symmetrically arranged in a regular hexagon shape, dielectric elastomers are filled among the conductors, and the dielectric elastomers are arranged between the tinned copper conductors. The composite insulating layer comprises an inner shielding layer, a main insulating layer and an outer shielding layer from inside to outside, the waterproof layer is a fluororubber extruded layer, the weather-proof sheath layer comprises a bonding transition layer and a weather-proof functional layer, and the armor layer is of a stainless steel band spiral wrapping structure. The composite cable can meet the requirement for high performance in a harsh environment and can show excellent performance under the extreme conditions of low voltage, large day and night temperature difference, strong ultraviolet rays, sand and dust abrasion, acid rain corrosion and the like.
Owner:BEIJING BOYA HENGJIU TECH CO LTD

Color photovoltaic module

The invention discloses a colored photovoltaic module which comprises a transparent colored glaze panel, a transparent bonding layer A, a battery layer, a bonding layer B and a back plate which are sequentially packaged in a stacked mode. The transparent colored glaze panel comprises a glass substrate, a transparent colored coating covering the outer side surface of the glass substrate, and a transparent glaze layer covering the outer side surface of the transparent colored coating; the transparent glaze layer is combined with the transparent colored coating through a covalent bond; the main component of the transparent glaze layer is silicon dioxide. The transparent colored coating of the colored photovoltaic module is positioned on the outer surface of the glass panel of the photovoltaic module, so that the defect of glass texture of a traditional photovoltaic module serving as a building material product is overcome; a transparent glaze layer with silicon dioxide as a main component is further arranged outside the transparent colored coating to serve as a protective layer, the adhesion fastness is high, the excellent performance of high hardness, high transparency, super weather resistance, acid and alkali resistance, scratch resistance and stain resistance is achieved, and the colored coating is effectively protected against color fading, falling off and external erosion such as acid rain, ultraviolet and sand wind.
Owner:HANGZHOU BOMEI SOLAR ENERGY TECHNOLOGY CO LTD +1

Ultra-wide spectrum endoscopic imaging device capable of being used for short wave infrared fluorescence imaging

The invention discloses an ultra-wide-spectrum endoscopic imaging device capable of being used for short-wave infrared fluorescence imaging, which is used for in-vivo minimally invasive imaging and comprises an illumination module, a wide-spectrum image transmission module, an imaging module and an image processing module. The illumination module consists of a light source and a light guide optical fiber, and is used for generating illumination light from ultraviolet to short wave infrared band and transmitting the illumination light to the wide-spectrum image transmission module; the wide-spectrum image transmission module consists of a few-interface optical imaging channel and a light guide illumination channel, and is used for illuminating an imaging target, exciting target fluorescence and collecting image signals from ultraviolet to short-wave infrared bands; the imaging module is composed of an optical filter and an imaging camera, and the imaging camera can be a wide spectral response image sensor or can be formed by combining cameras working in different wavebands and is used for converting optical images in different wavebands into image data; and the image processing module is used for registering and fusing image data of different wavebands in real time and displaying the image data.
Owner:ZHEJIANG LAB

UV photocuring electronic protection glue resistant to extreme high and low temperature impact and preparation method of UV photocuring electronic protection glue

The invention relates to the technical field of protective glue, in particular to extreme high and low temperature impact resistant UV (ultraviolet) photocuring electronic protective glue which is prepared from the following raw materials in parts by weight: 30-50 parts of synergistically modified epoxy-urethane acrylate oligomer, 20-35 parts of composite active monomer, 1.5-5 parts of composite photoinitiator and 10-20 parts of core-shell structure inorganic composite filler, 0.6 to 2.2 parts of a silane coupling agent, 0.12 to 1.1 parts of an antioxidant and 0.11 to 1 part of a leveling agent; the preparation method of the synergistically modified epoxy-urethane acrylate oligomer comprises the following steps: reacting resin acid modified epoxy resin with phosphoric acid di (hydroxyethyl acrylate) ester at 80-90 DEG C, and introducing a phosphate group to obtain a phosphate modified epoxy acrylate intermediate; the protection glue unifies rigidity, flexibility and flame retardance on the molecular level through the cooperation of the hybrid oligomer and the core-shell filler, realizes high heat conductivity, strong adhesion and extremely low internal stress, and has extreme temperature impact resistance, long-term damp-heat aging resistance and high-reliability protection performance.
Owner:NAN TONG FEI ER BANG DIAN ZI XIN CAI LIAO YOU XIAN GONG SI

Deep ultraviolet LED epitaxial structure, deep ultraviolet LED device comprising same and preparation method of deep ultraviolet LED epitaxial structure

The invention discloses a deep ultraviolet LED epitaxial structure, a deep ultraviolet LED device comprising the same and a preparation method, and the epitaxial structure sequentially comprises a sapphire substrate, an AlN nanowire array layer, an AlN intrinsic layer and an AlGaN light-emitting structure layer from bottom to top. The AlGaN light-emitting structure layer further comprises an n-type AlGaN electron injection layer, a quantum well active layer, a p-type AlGaN electron blocking layer and other device structures. According to the invention, the vertically arranged AlN nanowire array is introduced to replace a traditional AlN buffer layer, so that lattice mismatching stress caused by a substrate is significantly released, and the dislocation density of an epitaxial layer is effectively reduced; meanwhile, the introduction of the AlN intrinsic layer further flattens the epitaxial interface and optimizes the lattice quality, thereby providing a high-quality template for the growth of a high-performance AlGaN material. The epitaxial structure is suitable for an LED device in a deep ultraviolet band, and the crystal quality, the electrical property and the luminous efficiency of the device can be improved.
Owner:WUHAN TEXTILE UNIV

Ultraviolet aging resistant anti-drag film and preparation process thereof

The invention relates to the technical field of anti-drag films, and particularly discloses an ultraviolet aging resistant anti-drag film and a preparation process thereof.A hindered amine light stabilizer HALs and a silane coupling agent KH-560 are introduced into substrate TPU resin, the strength, heat resistance and aging resistance of the material are enhanced, then an adhesive layer is formed on a substrate film, and the anti-drag film is prepared. A disulfide bond in the adhesive layer has a reversible fracture-self-repairing function, the fatigue resistance of the material is enhanced, the long-term service life of the material is prolonged, the surface layer is acrylic resin formed through copolymerization, the structure comprises a flexible alkyl chain and a siloxane chain segment, a microstructure is formed through hot rolling, the aerodynamic performance is optimized, and the purpose of reducing frictional resistance is achieved.
Owner:FEILINKE NEW MATERIALS (NANTONG) CO LTD +1

High-efficiency deep ultraviolet LED light source

The utility model discloses a high-efficiency deep ultraviolet LED light source which comprises a support, an LED chip, a reflection cup and a light window covering the LED chip and the reflection cup, the support comprises a substrate, an electrode bonding pad arranged on the upper surface of the substrate, a support bonding pad arranged on the lower surface of the substrate and electrically connected with the electrode bonding pad, and a welding layer arranged on the periphery of the electrode bonding pad, the LED chip is welded on the electrode bonding pad, the reflecting cup is annular and surrounds the periphery of the LED chip, the inner side of the reflecting cup is provided with a reflecting surface which is gradually raised from inside to outside, the upper surface of the substrate is also provided with a positioning box dam, and the bottom surface of the reflecting cup is provided with a positioning notch which is mutually matched with the positioning box dam. The utility model has the advantage that the light extraction efficiency is easily improved on the basis of the existing inorganic packaging.
Owner:ZHONGSHAN GUANGSHENG YOUWEI TECH CO LTD

Blade state monitoring device for wind driven generator and wind driven generator

The invention discloses a blade state monitoring device for a wind driven generator and the wind driven generator, and relates to the field of data monitoring, and the blade state monitoring device comprises a device integration multi-mode sensor module, a self-cleaning deicing module, a lightning stroke monitoring module, an edge calculation module, an anti-typhoon monitoring module, an energy supply module and a communication gateway module. Strain, vibration and temperature sensors are arranged at the root, the tip and the surface of the blade, and an icing detector is arranged at the front edge. And deicing is realized through hot air injection and the nano coating. And a lightning sensor and ultraviolet imaging are used for positioning lightning stroke. And an AI chip is arranged in the edge computing node to diagnose damage. The fiber grating sensor monitors typhoon strain. The solar film and the miniature wind driven generator supply power. And the communication module supports LoRaWAN and Beidou short messages. And the far-end intelligent diagnosis module predicts the service life through machine learning and provides maintenance suggestions. The system has the advantages that the blade state is accurately monitored in real time through the integrated multi-mode sensor and module technology, operation safety is guaranteed, the service life of equipment is prolonged, and efficient utilization of clean energy is facilitated.
Owner:HUANENG YINGKOU XIANRENDAO CO GENERATION CO LTD +1

UV-cured high-weather-resistance optical thin film and preparation method thereof

The invention discloses a UV-cured high-weather-resistance optical thin film and a preparation method thereof, and relates to the technical field of optical thin films. The optical film is prepared by taking polyethylene glycol terephthalate as a base material and coating the base material with a UV curing coating, and the UV curing coating comprises the following raw materials in parts by weight: 15-20 parts of aliphatic polyurethane acrylate, 5-8 parts of perfluorobutyl ethyl acrylate, 8-12 parts of hydroxyethyl acrylate, 6-10 parts of 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 2, 4-trimethyl-1, the invention relates to a UV (ultraviolet)-resistant coating which is prepared from the following raw materials in parts by weight: 1-2 parts of 2, 6-hexanediol diacrylate, 5-8 parts of trimethylolpropane triacrylate, 30-40 parts of modified epoxy acrylate, 1-2 parts of a silane coupling agent KH-570, 2-3 parts of a photoinitiator 1173, 0.5-1.2 parts of a modified ultraviolet absorbent UV-327, 0.8-1.5 parts of a hindered amine light stabilizer 540, 0.3-0.8 part of an antioxidant 1010, 0.09-0.12 part of an ultraviolet absorbent Tinuvin400 and 0.2-0.5 part of polyether modified polydimethylsiloxane. According to the UV-cured high-weather-resistance optical thin film, polyethylene glycol terephthalate is used as a base material, key raw materials such as a UV-cured coating with a scientific formula, modified epoxy acrylate and the like are finely prepared, a two-stage curing process is adopted, and the weather resistance is excellent.
Owner:TIAN CHENG (SHENZHEN) MICRO-ELECTRONIC MATERIAL CO LTD

Method for preparing boron nitride-gallium oxide thin film flexible dual-band ultraviolet solar blind detector through Van der Waals stripping

PendingCN121728859AHeterojunctionUltraviolet
The invention discloses a method for preparing a boron nitride-gallium oxide thin film flexible dual-band ultraviolet solar blind detector through Van der Waals stripping, and aims to improve the comprehensive performance of the detector. The method comprises the steps of h-BN substrate pretreatment and surface modification, Sn gradient doped beta-Ga2O3 layer preparation, heterojunction interface passivation treatment, two-step Van der Waals stripping and flexible transfer, ohmic contact electrode preparation, gate type Schottky contact electrode preparation, post-treatment and packaging. According to the core, the interface state density is reduced through Al2O3 passivation, and carrier transport is optimized through Sn gradient doping, so that the detector achieves 200-280 nm dual-band response, the peak response rate is high, the response time is short, the leakage current is low, the flexible bending stability is good, high performance and flexibility are both considered, and industrial application can be achieved.
Owner:CHANGZHOU INST OF TECH

An online quality detection method for shenbushen liquid based on multispectral detection technology

This invention proposes an online quality detection method for An Shen Bu Nao Liquid based on multispectral fusion. Addressing the bottlenecks of traditional detection techniques, such as long offline processing time, weak multi-index detection capabilities, and poor dynamic adaptability, this method achieves intelligent quality control throughout the entire production process. The device integrates ultraviolet-visible spectroscopy, near-infrared spectroscopy, and fluorescence spectroscopy modules. It constructs a multi-scale residual convolutional network to extract ultraviolet-visible spectral features, uses a two-way LSTM to analyze the fluorescence excitation-emission matrix, and employs dynamic baseline correction of the ultraviolet spectrum. This improves the detection accuracy of icariin content by 40% compared to traditional HPLC methods, and achieves a heavy metal residue detection limit of 0.05 ppm, providing an innovative solution for the intelligent production of traditional Chinese medicine preparations.
Owner:JIANGSU JURONG PHARM GRP CO LTD

Antistatic film material and preparation method thereof

The invention relates to the technical field of coatings, in particular to an antistatic film material and a preparation method thereof.The antistatic film material comprises a film base material layer and a photocuring antistatic coating coated on the film base material layer, and the film base material layer is a polyethylene glycol terephthalate film; the light-cured antistatic coating is prepared from the following raw materials: water-soluble polyurethane acrylic resin, water-soluble acrylic resin, modified polyhedral oligomeric silsesquioxane, a composite conductive material, a photoinitiator, a flatting agent, a defoaming agent and water; the modified polyhedral oligomeric silsesquioxane and the composite conductive material are added into the coating base material to modify the coating base material, the coating has excellent antistatic performance and good mechanical property after being cured by ultraviolet light, and the special structure of the composite conductive filler and the compounding of the composite conductive filler and the modified polyhedral oligomeric silsesquioxane have excellent antistatic performance and good mechanical property. The anti-static performance reduction caused by low humidity and organic matter migration is avoided.
Owner:HUNAN BINGKANG NEW MATERIALS CO LTD

Ozone control method for sterilization

The invention relates to the technical field of transfer bin sterilization, in particular to an ozone control method for sterilization. Ozone concentration, article characteristics and environmental parameters are collected in real time through a multi-source sensor array, data space-time distortion of a multi-source sensor and an ozone concentration field reconstruction position error are greatly reduced through FPGA hardware-level timestamp addition and PTP protocol clock drift compensation, and the article surface area calculation precision is improved. The ozone concentration field in the transfer bin is reconstructed in combination with a fluid mechanics model, and based on the ozone consumption rate prediction of the surface area of the article, the zoning precise regulation and control of the ultraviolet lamp array are realized, and the microorganism killing rate can still be ensured when the article material adsorption difference exists and the ozone concentration spatial distribution is uneven. The medical article sterilization efficiency and the resource utilization rate are obviously optimized; the technical problems that the operation cost is increased and the operation is relatively tedious due to the fact that foreign articles in the current laminar ward can be used by a patient after being disinfected by multiple rounds of multiple devices are solved.
Owner:THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV

Two-dimensional multi-mode turbine blade heat-flow double-field synchronous test method and system

The invention relates to the technical field of aeroengine turbine blade thermodynamic performance testing, in particular to a two-dimensional multi-mode turbine blade heat-flow double-field synchronous testing method and system.The method comprises the steps that phosphorescent particles are evenly scattered in an experimental flow field of a target turbine blade, and after the phosphorescent particles are excited through double lasers, the target turbine blade is subjected to heat-flow double-field synchronous testing; collecting a flow field image; inverting a temperature field by using a phosphorescence intensity ratio method based on the flow field image, and calculating a velocity field through an improved PIV algorithm; and after time-space registration is carried out on the temperature field data and the velocity field data, fusion is carried out to generate a composite heat-flow field, dynamic coupling characteristics are analyzed through a vortex center tracking algorithm, and the heat-flow double-field synchronous test of the target turbine blade is completed. Through ultraviolet / PIV dual-laser excitation, multispectral separation acquisition and high-precision data fusion, time-space synchronous measurement of the temperature field and the velocity field of the boundary layer of the turbine blade is realized.
Owner:BEIHANG UNIV

Deep ultraviolet laser epitaxial structure and epitaxial growth method thereof

According to the deep ultraviolet laser epitaxial structure and the epitaxial growth method thereof provided by the invention, the Al component of the first waveguide layer is linearly and progressively increased from the side close to the electron injection layer to the side close to the quantum well active layer; or the Al component of the second waveguide layer is linearly and progressively decreased from the side close to the quantum well active layer to the side close to the hole injection layer to form refractive index distribution which takes the barrier layer of the quantum well active layer as the highest refractive index point and gradually decreases towards one side (the n-type side or the p-type side), so that the light field is firmly bound near the quantum well active layer, and the light limiting capability is remarkably enhanced; meanwhile, high-low Al components of the p-type side (the second waveguide layer) gradually change to generate a strong polarization electric field, ionization of a p-type doped acceptor (such as Mg) can be promoted, two-dimensional hole gas (2DHG) can be induced, and the hole concentration is improved; the low-high Al components of the n-type side (the first waveguide layer) are gradually changed, so that two-dimensional electron gas can be induced, and the electron concentration is improved.
Owner:WUHAN YOUWEIXIN TECH CO LTD

Preparation method of graphite phase carbon nitride / titanium dioxide photo-anode based on carbon dot modification

The invention discloses a preparation method of a graphite phase carbon nitride / titanium dioxide photo-anode based on carbon dot modification. The preparation method comprises the following steps: firstly, preparing graphite-phase carbon nitride and a carbon dot diluent, adding the graphite-phase carbon nitride and the carbon dot diluent into a precursor solution of titanium dioxide, dispersing and fusing, and growing a composite photocatalyst on conductive glass through in-situ hydrothermal treatment to obtain the photo-anode. The optimal material ratio is analyzed through characterization means such as electrochemical test and ultraviolet diffuse reflection spectrum. The optimal reaction condition of the photo-anode is explored by constructing the double-electrode photocatalytic fuel cell.
Owner:TIANJIN POLYTECHNIC UNIV

Ultraviolet quantitative label-free detection of DNA amplification

The present document describes methods and systems for amplifying and quantifying amplification of a nucleic acid molecule, with a polymerase chain reaction (PCR) or a loop-mediated isothermal amplification (LAMP), by irradiating, with a heating activation light beam from a continuous wave laser a biological enzymatic reaction mixture in solution comprising a nucleic acid template, a polymerase enzyme, and chemically modified nanoparticles. Quantification of the amplification is achieved by irradiating the biological enzymatic reaction mixture during an annealing and / or elongation steps with an ultraviolet (UV) light source and measuring with a photodetector a transmission change in UV light transmission.
Owner:MCGILL UNIV

Anti-radiation photovoltaic packaging adhesive film, preparation method thereof and photovoltaic module

ActiveCN121950194AImprove resistance to ionizing radiationImprove stabilityFilm/foil adhesivesCoatingsResin matrixUltraviolet
The invention relates to the technical field of photovoltaic adhesive films, and discloses an anti-radiation photovoltaic packaging adhesive film, a preparation method thereof and a photovoltaic module. The adhesive film is of a multi-layer co-extrusion composite structure formed by co-extrusion molding and irradiation, and comprises an upper surface layer, a middle functional layer and a lower surface layer, the upper surface layer is a radiation-resistant polymer matrix (such as EVA-g-St, EVA-g-(alpha-MeSt), POE-g-St and an EVA / POE-aromatic resin blend); the middle functional layer comprises a packaging resin matrix, an anti-radiation agent (which is a nano-scale radiation protection material such as a rare earth oxide, a heavy metal oxide, a boron-containing compound and a polymer derivative of a benzotriazole type ultraviolet absorbent) and a stabilizer; and the lower surface layer is a bonding surface layer formed by light-transmitting bonding resin. The adhesive film is good in radiation resistance, the light transmittance, the cohesiveness, the elongation at break retention rate, the yellowing resistance, the power attenuation resistance of a component and the like after accelerated radiation are obviously improved, and the service life of the component under strong radiation can be prolonged.
Owner:JIANGSU ZHONGLAI NEW MATERIAL TECH CO LTD

Multifunctional flame retardant and application thereof in epoxy resin

The invention belongs to the field of flame-retardant composite materials, and particularly relates to a multifunctional flame retardant and application thereof in epoxy resin. The method comprises the following steps: firstly, carrying out nucleophilic substitution reaction on tert-butyldimethylsilyl chloride and syringaldehyde to obtain a primary intermediate product; carrying out condensation reaction on the primary intermediate product and an amino-containing compound to form a secondary intermediate product with a Schiff base structure; and finally, carrying out addition reaction on the secondary intermediate product and a specific phosphorus-containing reagent to successfully prepare the target flame retardant. Researches show that the flame retardant is remarkable in efficiency, can effectively improve the limit oxygen index (LOI value) and the vertical combustion test (such as UL-94) grade of a material after being applied to an epoxy resin system, and endows the composite material with excellent light transmission, anti-dripping performance and good ultraviolet shielding characteristic.
Owner:CHANGZHOU UNIV

Wide-spectrum ultraviolet absorbent with sandwich structure as well as preparation method and application of wide-spectrum ultraviolet absorbent

The invention belongs to the field of coatings, and discloses a broad-spectrum ultraviolet absorbent with a sandwich structure as well as a preparation method and application of the broad-spectrum ultraviolet absorbent. An ultraviolet absorbent is adsorbed on the upper surface and the lower surface of graphene oxide through the action of a hydrogen bond and a pi-pi bond to form a compact ultraviolet absorbent layer, then the surface of graphene oxide is chemically modified through a diamine compound, amino is grafted, and the wide-spectrum ultraviolet absorbent of a'discrete point / surface / discrete point 'sandwich structure is obtained. The ultraviolet absorbent filler, the cardanol-based reactive diluent and the epoxy resin are compounded, so that the ultraviolet aging resistance, the barrier corrosion resistance and the hydrophobicity of the prepared composite coating are synergistically enhanced and exceed those of an anti-ultraviolet epoxy coating material reported at present.
Owner:NANJING TECH UNIV

Protective material for building decorative plate and construction method

The invention relates to a protective material for building decorative boards, which comprises 55-60% of a main film-forming system, 8-10% of a nanometer functional filler, 12-15% of a functional auxiliary agent, and 15-35% of a carrier and a conditioning agent, and the construction steps of the protective material for building decorative boards comprise base material pretreatment, coating construction, curing and quality inspection. According to the protective material for the building decorative plate and the construction method, the fluorocarbon modified acrylic resin and the organic silicon-acrylic hybrid emulsion are adopted for upgrading a base material, the nano titanium dioxide is added to realize ultraviolet shielding, the graphene is added to realize crack propagation resistance, the weather resistance of the material is improved, the deionized water is used for replacing a traditional solvent, and the cost is reduced. The self-cleaning capacity can be improved by adding hydrophobic nano silicon dioxide, silicon dioxide is added into an intumescent flame-retardant system to serve as a physical anchoring point, and the flame-retardant property of the material is further improved.
Owner:吴荣平

Device for cleaning, disinfecting and removing nucleic acid from experimental apparatus

The utility model discloses a device for cleaning, disinfecting and removing nucleic acid from experimental instruments. The device comprises a case, and a spraying system, an ultraviolet disinfection system, a drying system and a control display system which are arranged in the case. The cleaning, disinfecting and nucleic acid removing device ensures the cleaning, disinfecting and nucleic acid removing effects, does not have chemical reagent residues, and realizes cleaning, disinfecting and nucleic acid removing of experimental apparatuses such as pipettes.
Owner:沈兆龙

Back contact solar cell, preparation method thereof and photovoltaic module

The invention discloses a back contact solar cell, a preparation method thereof and a photovoltaic module, and relates to the field of photovoltaic technology. According to the preparation method of the back contact solar cell provided by the invention, the grid line groove is formed in the first passivation layer by using the deep ultraviolet laser, and the deep ultraviolet laser has relatively high photon energy which is higher than chemical bond energy of a passivation layer material, so that chemical bonds can be broken through a photochemical effect instead of depending on a thermal effect to melt the material. The heat affected zone of deep ultraviolet laser grooving is small, generated thermal stress is small, and edge warping of the first passivation layer caused by thermal expansion difference can be restrained. The metal seed layer formed through subsequent deposition can be well attached to the inner surface of the grid line groove and the outer surface of the first passivation layer in the grid line area, the metal seed layer is good in integrity and has good adhesive force, and the manufactured back contact solar cell has good reliability and cell performance.
Owner:TONGWEI SOLAR ENERGY (CHENGDU) CO LID +1

Water body bacterium ultraviolet disinfection dosage prediction and optimization method driven by machine learning

PendingCN121459935AEnsemble learningKernel methodsFeature vectorBacterial genetics
The invention discloses a machine learning-driven water body bacteria ultraviolet disinfection dosage prediction and optimization method, which comprises the following steps of: obtaining genetic information, environmental parameters and ultraviolet disinfection conditions of target bacteria, and numeralizing the genetic information into feature vectors; cleaning and coding the acquired data to form a feature matrix; based on the characteristic matrix, a machine learning algorithm is utilized to train an ultraviolet disinfection dosage prediction model, and the model takes the inactivation efficiency as a prediction target; according to bacterial genetic information, environmental parameters and ultraviolet conditions input by a user, utilizing the trained prediction model to predict the inactivation efficiency, scanning in a multi-dimensional parameter space, and determining an optimal ultraviolet disinfection condition combination meeting a target inactivation level; outputting an optimal ultraviolet disinfection condition combination; the method disclosed by the invention has cross-strain and cross-scene applicability.
Owner:NANJING UNIV

Waterproof bag film material and preparation method thereof

PendingCN121914428ACoatingsEpoxyPolymer science
The invention discloses a waterproof bag film material and a preparation method thereof, relates to the technical field of polybutylene terephthalate polymer materials, and belongs to the patent classification number C08L67 / 02. The method comprises the following steps: sequentially carrying out silane coupling agent modification and solid-phase free radical polymerization on activated gas-phase nano silicon dioxide to construct a core-shell structure nano reinforced filler with rich epoxy groups on the surface; carrying out melt blending extrusion on the mixture, PBT (Polybutylene Terephthalate) resin, a chain extender, an end-capping reagent and the like to obtain hydrolysis-resistant modified granules; a PBT base film is prepared through casting, two-way stretching and heat setting; the preparation method comprises the following steps: performing ultraviolet ozone activation on a base film, coating a super-hydrophobic coating solution prepared from aminated nano silicon dioxide, epoxy-terminated polydimethylsiloxane, a cross-linking agent and an accelerant, and heating and curing to finally obtain the high-strength high-waterproof PBT waterproof bag film. The prepared film has excellent mechanical strength, body hydrolysis resistance and super-hydrophobic surface, the water contact angle is high, the coating adhesive force is high, and the waterproof performance is lasting and stable under high-frequency bending.
Owner:GUANGDONG QUANZHI TIMES WEAVING CO LTD

Intelligent prediction system for purification process of intestinal mucosa antioxidant active peptide

The invention relates to the technical field of optical detection, in particular to an intelligent prediction system for an intestinal mucosa antioxidant active peptide purification process, which is characterized in that multi-source spectral data of an ultrafiltration process are acquired, and the multi-source spectral data comprise ultraviolet visible spectral data, fluorescence spectral data and Fourier transform infrared spectral data; performing two-dimensional conversion on the multi-source spectral data to obtain two-dimensional spectral data; fusing the two-dimensional spectral data to obtain multi-channel spectral data; identifying the multi-channel spectral data to obtain activity prediction data; and constructing a parameter optimization model, and performing online rolling optimization solution according to the activity prediction data to obtain ultrafiltration optimization parameters. Purification control is carried out by optically detecting and identifying the activity of the material.
Owner:JIANGSU WANLI BIOTECH CO LTD

Quantum dot catalyzed rapid light-cured cellulose resin adhesive, and preparation method and application thereof

The invention discloses a quantum dot catalyzed rapid light-cured cellulose resin adhesive, a preparation method and application, and the preparation method comprises the following steps: carrying out acylating chlorination on a photoinitiator primer by using oxalyl chloride to obtain an acylating chlorination product; dissolving cellulose, a catalyst and the acylating chlorination product in a good solvent, reacting, precipitating in deionized water, collecting the precipitate, and drying to obtain a cellulose macromolecular photoinitiator; mixing and stirring the acrylate monomer A, the acrylate monomer B, the cellulose macromolecular photoinitiator and the quantum dots to obtain the adhesive. According to the method, the rapid light-cured cellulose resin adhesive with excellent performance can be simply and efficiently prepared, the prepared cellulose resin adhesive can be cured for 0.2-1 min under a 365 nm ultraviolet lamp to achieve adhesion of a transparent base material, the method has the advantages of being environmentally friendly, easy to operate and wide in applicable monomer range, and the application range of cellulose is further widened.
Owner:NANJING FORESTRY UNIV +1

Washable wear-resistant uvioresistant polyarylate fiber as well as preparation method and application thereof

The invention discloses a washable, wear-resistant and uvioresistant polyarylate fiber as well as a preparation method and application of the washable, wear-resistant and uvioresistant polyarylate fiber. The method sequentially comprises the following steps: carrying out surface activation on fibers by adopting a deep eutectic solvent, spraying a TiO2 / organic ultraviolet absorbent UV1130 compound solution to construct an anti-ultraviolet layer, and carrying out interfacial polymerization by utilizing polyethyleneimine and trimesoyl chloride to form a polyamide encapsulation layer. The polyamide film can firmly coat the ultraviolet screening agent and anchor the ultraviolet screening agent on the surface of the fiber, so that the ultraviolet resistance of the polyarylester fiber is remarkably improved, meanwhile, the polyarylester fiber is endowed with excellent durability, the UPF retention rate is still higher than 90% after 10 times of standard washing or 200 times of friction, and the polyarylester fiber has excellent washing resistance and wear resistance. The process is simple, green and efficient, and the prepared composite fiber has wide application prospects in the fields of outdoor protection, intelligent spinning and the like.
Owner:QINGDAO UNIV OF SCI & TECH