1026 results about "Ultraviolet light exposure" patented technology

The invention discloses ultra-high performance concrete and a preparation method thereof. The ultra-high performance concrete comprises the following components in percentage by mass: 15%-25% of cement, 3%-6% of nano SiO2, 30%-35% of fly ash or steel slag powder, 35%-40% of recycled aggregate, 1%-4% of fiber, 0.5% of a microbial remediation agent and 1%-3% of nano TiO2. The preparation method comprises the following steps: S1, pretreating the recycled aggregate; and S2, packaging the microbial remediation agent: mixing the bacillus pasteurii spores with calcium lactate, and wrapping the mixture in calcium phosphate microspheres. S3, step-by-step stirring; S3.1, dry mixing: uniformly stirring the cement, the fly ash, the nano SiO2, the nano TiO2 and the recycled aggregate; s3.2, wet mixing is carried out, water solution fibers containing the polycarboxylic acid water reducing agent are added, uniform stirring is carried out, and the water-binder ratio of the water solution containing the polycarboxylic acid water reducing agent is 0.18; s3.3, final mixing: adding the packaged microbial remediation agent, and uniformly stirring; and S4, directional curing: performing steam curing at 80 DEG C for 48 hours, performing ultraviolet irradiation, and performing constant-temperature and constant-humidity curing for 7 days. The ultra-high performance concrete has the effects of low cost, low carbon emission, multi-function integration and repeatable crack self-repairing.

The invention discloses an amyloid-like protein mediated base material surface controllable functional modification method, which comprises the following steps of: dip-coating or spraying an aqueous solution containing protein, a photoinitiator, an anti-fouling monomer and an adhesive monomer on the surface of a base material, and irradiating by ultraviolet rays to form a uniform anti-fouling amyloid protein nano coating on the surface of the base material. Functional monomers and amyloid protein self-assembly are combined, and the effects of adhesion and stubborn stain resistance can be achieved by simultaneously constructing a dual-adhesion unit and a functional anti-fouling unit. The protein nano coating has high optical permeability, on the premise that the original appearance of a base material is not affected, the functions of surface stubborn stain resistance, self-cleaning, stable adhesion and the like are added, stains on the surface of the coating can be washed away through simple water flow washing, and the protein nano coating has wide application prospects in daily life.

The sterilization device comprises a lamp tube, an ultraviolet lamp, a spiral descaling brush and a rotating shaft, the rotating shaft is installed in the lamp tube along the axis of the lamp tube, the spiral descaling brush is installed on the rotating shaft and provided with spiral brush pieces, and the spiral brush pieces continuously and spirally extend in the axial direction of the lamp tube; the outer end of the spiral brush piece in the radial direction makes contact with the inner wall of the lamp tube, the spiral descaling brush can be driven by water flow to rotate, the ultraviolet lamp is arranged outside the lamp tube, and the irradiation direction of the ultraviolet lamp faces the spiral descaling brush. The straight-through type overflowing pipeline is adopted for discharging water, the spiral descaling brush is arranged in the lamp tube, when water flows through, the spiral descaling brush can be driven to rotate, so that coverings such as water scales on the tube wall of the lamp tube are scraped away, self-cleaning descaling is achieved, and the ultraviolet lamp is arranged outside the lamp tube and emits ultraviolet rays to irradiate water passing through the lamp tube.

The invention belongs to the technical field of energy storage system device materials, and particularly relates to a modified silk amino acid-based gel electrolyte as well as a preparation method and application thereof. The method comprises the following steps: S1, uniformly mixing and stirring 15 to 30g of acrylamide, 50 to 60g of zinc sulfate heptahydrate, 0.1 to 1g of silk amino acid and 100g of water; adding 5mL to 10mL of ethanol, and uniformly shaking; then sequentially adding a proper amount of N-N methylene bisacrylamide and a photoinitiator, and continuously stirring until the solution is clear to obtain an electrolyte; s2, dropwise adding the prepared electrolyte into a polytetrafluoroethylene (PTFE) plate, and covering the polyurethane fiber membranes obtained by electrostatic spinning on the two sides; and carrying out light curing under ultraviolet irradiation to obtain the modified silk amino acid (M-SAA) gel electrolyte. According to the invention, silk amino acid (SAA) is introduced to construct a compact protective film with a beta folding structure, so that zinc dendrite growth and side reaction are inhibited, and the stability of the zinc negative electrode of the battery and the cycle performance of the battery are improved.

A photocurable composition, contains a (meth)acrylic monomer component, and photopolymerization initiator, in a case in which a rectangular sheet-like test piece A1 with a length of 40 mm, a width of 10 mm, and a thickness of 1.0 mm is produced by photomodeling under conditions in which the photocurable composition is irradiated with visible light having a wavelength of 405 nm at an irradiation dose of 11 mJ / cm2 to form a cured layer A1 with a thickness of 50 μm, the cured layer A1 is stacked in a thickness direction thereof to form a rectangular sheet-like modeling product A1 with a length of 40 mm, a width of 10 mm, and a thickness of 1.0 mm, and the modeling product A1 is irradiated with ultraviolet rays having a wavelength of 365 nm at an irradiation dose of 3 J / cm2 to produce the test piece A1.

The invention provides a rare earth complex as well as a preparation method and application thereof. The chemical general formula of the rare earth complex is (Ln < 1x > Ln < 2y > Ln < 31-x-y >) (A) m (B) n, the rare earth complex provided by the invention has a self-assembly behavior, spherical nanoparticles can be formed through molecular aggregation, under ultraviolet irradiation, internal ligand molecules are better protected, the photobleaching process of the rare earth complex under natural conditions is slowed down, and the rare earth complex has better stability and higher weather resistance in the natural environment.

The invention relates to an industrial method, in particular to a method for preparing a universal functional protein nano-film on the surface of a base material, which comprises the following steps: (1) mixing a protein solution, an optional functional monomer and a photoinitiator solution to prepare a mixed solution; (2) soaking a base material in the mixed solution; and (3) irradiating with ultraviolet rays to obtain the protein nano-film on the surface of the base material. According to the universal method for continuously preparing the functional protein nano-film on the surface of the base material, rapid self-assembly aggregation and monomer polymerization of the protein can be carried out at the same time under ultraviolet induction, and the protein-functional polymer two-dimensional nano-film prepared on the surface of the base material is compact, low in roughness, high in transparency and good in application prospect. The biocompatibility is good.

The invention relates to the technical field of solid-state batteries, and discloses an optimized preparation method of a solid-state battery electrolyte, a composition comprises a lithium source, a lanthanum source and a zirconium source, and the molar ratio of lithium to lanthanum to zirconium is (7.0-8.0): 3.0: 2.0; the use amount of the photoacid generator accounts for 0.5-5.0 mol% of the total molar weight of the metal ions; and an organic solvent. The method comprises the following steps: S1, placing a substrate in a high-pressure reaction kettle, and injecting the precursor composition in a supercritical carbon dioxide (scCO2) environment; s2, irradiating the surface of the substrate with ultraviolet rays, performing photolysis on the photoacid generator to generate acid, and catalyzing the metal precursor to be decomposed and deposited into an amorphous film; and S3, taking out the substrate after pressure relief, and carrying out low-temperature heat treatment at 400-700 DEG C to obtain the solid electrolyte film. Through combination of photochemical deposition and a supercritical fluid technology, the problem of decomposition of a positive electrode material caused by high temperature in a traditional process is solved.

A method of disinfection of an object, the method including securing an infected object to a moveable carrousel within a chamber; exposing the infected object to a disinfection cycle, the disinfection cycle comprising: exposing the infected object to an atomized liquid disinfectant fog comprising a disinfectant; exposing the infected object to ultraviolet illumination from an ultraviolet illumination source before, during, after, or any thereof exposing the object to the atomized liquid disinfectant fog to disinfect the object; during the disinfection cycle changing an orientation of the infected object with respect to the atomized liquid disinfectant fog and the ultraviolet illumination source; and removing the object from the chamber.

The invention relates to the technical field of photovoltaic materials and agricultural facilities, in particular to a photovoltaic packaging adhesive film for an agricultural photovoltaic greenhouse, a preparation method of the photovoltaic packaging adhesive film and a photovoltaic panel. The invention relates to a photovoltaic packaging adhesive film for an agricultural photovoltaic greenhouse. The photovoltaic packaging adhesive film is mainly prepared from the following components in parts by weight: 90-99 parts of matrix resin, 0.05-1 part of a reversible photochromic pigment, 0.05-1 part of noctilucent powder and 0.7-3.5 parts of an auxiliary agent, the reversible photochromic pigment turns red under ultraviolet irradiation; the noctilucent powder emits blue light under the excitation of natural light or ultraviolet light, and the afterglow time is not less than 10 hours. The photovoltaic packaging adhesive film disclosed by the invention is used for an agricultural photovoltaic greenhouse, and can improve the light utilization rate, convert light rays such as ultraviolet rays into red light and blue light beneficial to crop growth, enhance photosynthesis and further improve the growth condition of crops.

The present invention provides a method for inactivating viruses in liquid biological products. The method uses a virus inactivation device to inactivate viruses in liquid biological products. The virus inactivation device includes a feeding part, a centrifugation part, and a discharging part. The centrifugation part is provided with an ultraviolet lamp. The liquid biological products are continuously fed into the centrifugation part through the feeding part. Under the action of centrifugation, the liquid biological products are thinned to a liquid layer thickness of 0.01 cm to 0.2 cm, and at the same time, the viruses are inactivated by ultraviolet irradiation through the ultraviolet lamp. After the viruses are inactivated, the liquid biological products are continuously discharged from the centrifugation part to the discharging part under the action of centrifugation, and are discharged from the virus inactivation device through the discharging part. The retention time of the liquid biological products in the centrifugation part is controlled to be 5 to 60 s, the irradiation intensity of the ultraviolet lamp is 500 to 10,000 μW / cm<supgt;2< / supgt;, and the irradiation wavelength of the ultraviolet lamp is 254 to 280 nm. The present invention is a continuous method for inactivating viruses in liquid biological products.

The invention discloses simulated lunar soil for engineering and a preparation process thereof, the simulated lunar soil has a multilayer structure design, and comprises a basic mineral structure layer, a surface activity control layer and a simulated space environment effect layer. The basic mineral structure layer is prepared from modified olivine, titanium-rich basalt, rare earth doped plagioclase, calcium phosphate minerals, nano iron particles and vitreous minerals according to a specific proportion; the surface activity control layer adopts an atomic layer deposition technology to form a nano oxide layer on the surface of the mineral particles; the simulated space environment effect layer is formed through low-pressure helium ion bombardment and ultraviolet irradiation. The preparation process comprises the steps of intelligent graded crushing, mineral phase change control, surface modification and activation treatment, multi-parameter synchronous regulation and control and the like. The simulated lunar soil can be produced in a customized mode according to different lunar area characteristics, the matching degree with real lunar soil physical characteristics exceeds 90%, the ground testing precision of lunar exploration equipment is remarkably improved, and technical support is provided for lunar on-site resource utilization and lunar base construction.

The invention discloses a fire extinguishing microcapsule and a preparation method thereof, and belongs to the technical field of fire extinguishing. The fire extinguishing microcapsule comprises a capsule core and a capsule shell, and the raw material for preparing the capsule core comprises a water-based fire extinguishing agent; the capsule shell comprises an interfacial polymerization layer and a UV curing layer which are sequentially arranged from inside to outside, and the water-based fire extinguishing agent is wrapped in the interfacial polymerization layer. On one hand, the interfacial polymerization layer is a film formed through interfacial polymerization reaction, namely, the interfacial polymerization layer is formed by utilizing the hydrophilicity of the water-based fire extinguishing agent and the lipophilicity of the capsule shell, so that the sealing performance and the flexibility are improved; and on the other hand, the UV curing layer is formed by curing the raw materials for preparing the capsule shell through cross-linking under ultraviolet irradiation, so that the impact resistance and the deformation resistance of the capsule shell can be enhanced, and the mechanical strength and the high temperature resistance of the capsule shell are improved. In addition, the UV curing layer on the outer side and the interfacial polymerization layer on the inner side are sequentially formed in stages, the mechanical strength of the capsule shell is improved, and meanwhile the possibility of permeation loss of the water-based fire extinguishing agent is reduced.

The utility model discloses a split mounting type aquaculture water circulation treatment device, and relates to the technical field of water treatment equipment. The device comprises a culture pond and a treatment box, a filter screen and an ultraviolet lamp are fixedly installed in the treatment box, the filter screen is located above the ultraviolet lamp, a driving assembly is arranged on the treatment box, an extraction assembly is arranged on the driving assembly, and water in the culture pond is conveyed into the treatment box through the extraction assembly. According to the utility model, the driving assembly is used for conveniently driving water discharged by the discharge pipe in the extraction assembly to uniformly flow to the filter screen, so that impurities in the water are prevented from being concentrated and accumulated at a certain position of the filter screen, and then stirring blades in the linkage assembly are used for enabling the water in the treatment box to flow; water flows to continuously expose areas containing microorganisms such as bacteria and viruses under ultraviolet irradiation, so that the probability that the ultraviolet lamp is in contact with the microorganisms in water is increased, and the disinfection efficiency is improved.

An insulation piercing connector for a solar system install is provided that is installed easily and provides multiple connections, using industry standard connectors, and protects the internal components from the elements such as water infiltration and UV exposure.

The invention provides an XLPEO / MIL-TAPB-DMTP-COF mixed matrix membrane and a preparation method and application thereof.The preparation method includes the steps that a MIL-TAPB-DMTP-COF core-shell material is prepared through a double-ligand auxiliary synthesis strategy, the MIL-TAPB-DMTP-COF core-shell material is doped into a mixed solution of polyethylene glycol diacrylate and polyethylene glycol diacrylate to be evenly dispersed to form a membrane casting solution, the two PEO polymers are crosslinked through ultraviolet irradiation, and the XLPEO / MIL-TAPB-DMTP-COF mixed matrix membrane is obtained. And the XLPEO / MILat TAPB-DMTP-COF mixed matrix membrane is formed, and has good CO2 / N2 separation performance.

The invention relates to the technical field of film coating, and particularly discloses a coating device for film production, which comprises a base, a support frame is arranged on the top surface of the base; an unwinding roller and a winding roller are rotationally arranged on the inner wall of the supporting frame; a gluing box is mounted on the base; a glue groove is formed in the inner wall of the bottom end of the gluing box, and a driving motor is mounted on the outer wall of the gluing box; the output end of the driving motor is coaxially and fixedly connected with a glue spreading roller positioned in the glue material groove; a feeding opening is formed in the side wall of the gluing box, and an adjusting roller located at the top of the gluing roller is rotationally connected to the inner wall of the gluing box; the adjusting roller and the gluing roller are matched to form a gap channel through which a base film can pass; an ultraviolet irradiation box is arranged on the top surface of the gluing box; a discharge hole is formed in the side wall of the ultraviolet irradiation box; a glue scraping mechanism is arranged in the glue groove; in the roller coating process of the glue coating roller, the glue scraping mechanism can scrape glue on the glue coating roller, so that the glue on the glue coating roller is smooth and uniform, and a base film can be uniformly coated.

To provide a light irradiation device capable of performing uniform and efficient light irradiation on an edge surface and a peripheral edge part of each side of a substrate.SOLUTION: A light irradiation device (ultraviolet irradiation device 90) for emitting light on a peripheral edge part of a substrate to which a film forming liquid is applied by a coating device and curing the film forming liquid, comprises: a lifting stage (UV irradiation stage 91) that can be lifted while the substrate is placed thereon; a light irradiation unit 95 that is disposed around a lifting space of the lifting stage and emits light on the peripheral edge part of the substrate; and a rotation mechanism 96 for rotating the light irradiation unit 95 such that a light irradiation surface of the light irradiation unit 95 adjacently faces at least upper and lower surfaces of the peripheral edge part of the substrate.SELECTED DRAWING: Figure 15

The invention relates to a cross-medium aircraft variant nose cone with dynamically adjustable surface wettability, and belongs to the field of cross-medium aircrafts. Comprising a variant skeleton and a flexible skin. Under the heating condition, the variant framework can drive the flexible skin to deform, the flexible skin keeps the deformed state after normal temperature is recovered, and therefore curvature distribution and section characteristics of the nose cone structure are changed. The surface of the flexible skin is covered with a wettability intelligent response coating. After the wettability intelligent response coating is irradiated by ultraviolet rays, the surface wettability can be converted into a super-hydrophilic state, and the wettability intelligent response coating can be recovered into a super-hydrophobic state after being heated. The head configuration and the surface wettability layout of the cross-medium aircraft are adjusted according to the specific water entry working condition, the hydrodynamic force and the hydrodynamic moment borne by the aircraft in the water entry process are changed through the influence effect of the configuration and the surface wettability on water entry cavitation evolution, the impact load is reduced as needed, and the attitude and trajectory stability is improved; the purposes of being compatible with various launching platforms and guaranteeing the water entry efficiency and safety are achieved.

The invention relates to a method and system for predicting the service life of a PLA-based composite mulching film based on a p-norm algorithm and a storage medium. According to the technical scheme, the preparation method comprises the following steps: grafting modified cellulose nanocrystals with citric acid, and compounding the modified cellulose nanocrystals with polylactic acid to prepare a film; respectively carrying out degradation experiments of indoor ultraviolet irradiation and outdoor planting environment; according to the method, an ultraviolet degradation prediction method based on a p-norm algorithm is constructed, change rules of indexes such as elongation at break, tensile strength, a light transmission coefficient and a reflection coefficient are analyzed by associating degradation sequences of indoor ultraviolet irradiation and an outdoor planting environment, and a quantitative relation model of degradation days and performance parameters is established. The high-degradation composite film is combined, the limitation that degradation of a traditional mulching film is uncontrollable is broken through, the crop growth cycle is dynamically matched through the prediction model, and the degradation process is precisely regulated and controlled. Wherein the determination coefficient R2 of the tensile strength prediction model is equal to 0.996, the actual application error is lower than 5%, and intelligent adaptation of the degradation rate and agricultural requirements is achieved.

An ultraviolet-irradiation-resistant high-efficiency photovoltaic module belongs to the technical field of photovoltaic equipment, solves the technical problem of insufficient light conversion efficiency of photovoltaic modules, and adopts the technical scheme that two groups of photovoltaic modules are symmetrically arranged on the surfaces of the upper side and the lower side of a battery piece, and the two groups of photovoltaic modules and the battery piece are packaged into a whole; a nano-metal low-radiation film, a photovoltaic glass plate, a one-way light-transmitting film, a composite light conversion adhesive film (including a lower conversion adhesive film and an upper conversion adhesive film), an ultraviolet scattering film, an infrared shielding adhesive film and an ultraviolet cut-off film are sequentially arranged in each group of photovoltaic modules in an overlapping manner from the surface layer to the inner layer. The solar cell module not only can protect the cell from being irradiated by infrared rays and ultraviolet rays and prolong the service life of the cell, but also can prolong the propagation path of the ultraviolet rays and the infrared rays in the module, reduce light loss, prevent the light conversion efficiency from being reduced due to temperature rise and improve the power generation efficiency.

The invention relates to the technical field of agriculture, and discloses an ecological environment-friendly microbial degradation mulching film which comprises the following components in percentage by mass: 50-65% of polylactic acid; 15% to 25% of lignocellulose; 5%-10% of glycerin; 0.5%-2% of nano titanium dioxide; 0.1% to 0.5% of silver nanoparticles; 0.5%-2% of a tea tree oil extract; 15% to 20% of carboxymethyl cellulose; 13%-15% of a plant growth regulator; 5%-10% of an auxiliary agent; the auxiliary agent comprises one or more of an antioxidant, a plasticizer and a light stabilizer, and the plant growth regulator comprises one or more of a seaweed extract, indoleacetic acid or oleanolic acid. By adding nano titanium dioxide and silver nanoparticles into the mulching film, excellent ultraviolet resistance and antibacterial performance of the mulching film are achieved, and the problem that aging of a traditional mulching film is accelerated due to ultraviolet irradiation is solved.

The invention belongs to the field of biological medicines, and discloses an application of a protein polymer in preparation of a medicine for treating spinal cerebellar ataxia disease, a production process of the protein polymer comprises the following steps: S1) using ultraviolet irradiation to stimulate mesenchymal stem cells and culturing; and S2) splitting the mesenchymal stem cells, separating and purifying to obtain the protein polymer. An ultraviolet irradiation stress mode is adopted, mesenchymal stem cells are stimulated to express protein with a neural repair function, the protein polymer is obtained through further separation and purification, the cell gene expression pathway is regulated, the cell stress state is relieved, the cells are promoted to recover normal forms and functions, meanwhile, the preparation mode is relatively simple, and the preparation method is suitable for large-scale production. And quality and yield monitoring is facilitated, and the method can be adapted to diversified application modes.

According to the low-shrinkage 3D printing zirconia ceramic and the preparation process thereof, photosensitive polyimide is selected, the photosensitive polyimide has an imine ring and a photosensitive group on a macromolecular chain and has the advantages of excellent photosensitivity, thermal stability, low volume shrinkage and the like, a photoinitiator does not need to be added into a product system, and the preparation process is simple. Curing can be directly completed under ultraviolet irradiation, and the problems of ceramic shrinkage, cracking and the like caused by volatilization or decomposition of a photoinitiator in a workpiece during degreasing are avoided; the ratio of the dispersing agent to the plasticizer in the product system is optimized, the viscosity of the slurry is reduced, the solid content is increased, the shrinkage rate after sintering is reduced, and the flowability and the printing precision of the slurry are ensured. Besides, by combining a flash sintering treatment process, grain growth coarsening is inhibited, a nanoscale compact structure is realized, and internal defects are reduced, so that the zirconia ceramic prepared by the method has the advantages of no defect, compact structure, smaller grain size (smaller than 1 mu m), excellent fracture toughness and higher relative density.

The utility model discloses a cover plate structure, liquid crystal display module and mobile equipment relates to display module technical field, cover plate structure includes cover plate and color change label, color change can be produced in the color change label under light irradiation, wherein the color change label is connected to the cover plate and exposes the outer edge of cover plate, or cover plate structure also includes cover plate protective film, the cover plate protective film is connected with the cover plate protective film. The cover plate protection film is located on the inner side and / or the outer side of the cover plate, and the color-changing label is connected to the cover plate protection film. According to the scheme, the color-changing label is arranged on the cover plate, when the cover plate and the liquid crystal display panel are installed, the color-changing label irradiated by ultraviolet rays changes in color, and the color-changing label which is not irradiated is still in the primary color, so that an operator can sort finished liquid crystal display modules according to the change of the color-changing label when sorting the finished liquid crystal display modules; whether the cover plate and the liquid crystal display panel are cured through ultraviolet irradiation during bonding is judged, and the quality of the liquid crystal display module is guaranteed.

The invention relates to the technical field of waterproof coatings, in particular to a photo-initiation cold coating type non-curing rubber asphalt waterproof coating and a preparation method thereof, and the photo-initiation cold coating type non-curing rubber asphalt waterproof coating comprises an asphalt-based main material, a photo-curing agent and epoxy resin; the light curing agent is composed of a photoinitiator, a rubber monomer and a hindered amine light stabilizer, and the photoinitiator comprises a benzothiophene compound; the waterproof coating is in a single-component paste state, can be constructed at normal temperature, and is cured to form a waterproof coating film after being irradiated by ultraviolet rays; according to the technical scheme, a cross-linking system of the light curing agent and the epoxy resin not only keeps the creep deformation and self-healing characteristics of non-cured rubber asphalt, but also improves the heat resistance, acid, alkali and salt resistance and bonding performance of a coating film through a three-dimensional network cross-linking structure, and it is ensured that a waterproof layer adapts to building structure deformation and severe environments for a long time.

The invention discloses sewage energy-saving treatment equipment for oil-based needle coke production, and belongs to the technical field of oil-based needle coke production. The device comprises a box body, a plurality of fixing pipes are symmetrically and fixedly connected to the side wall of the box body in a penetrating mode, a plurality of box covers are clamped to the upper side of the box body, a plurality of ultraviolet irradiation lamps are fixedly connected in the box body, two baffles are symmetrically and fixedly connected in the box body, and an air flotation machine is fixedly connected to the bottom in the box body. A slag scraping assembly is installed in the box body and comprises a slag scraping plate. In the sewage treatment process, under the action of the ultraviolet irradiation lamp and the catalyst, organic sulfide in sewage can be converted into inorganic sulfide, then under the action of the slag scraping plate, impurities floating on the water surface can be scraped between the baffle and the box body, the simple impurity removal effect is achieved, the structure is simple, and the operation is convenient. The practical effect is good.

The Janus mesh for fog harvesting is a mesh with a superhydrophobic side and an opposed hydrophilic side. The Janus mesh is formed from a brass mesh with opposed first and second sides. The first side has the hydrophobic layer formed thereon and the second side has the hydrophilic layer formed thereon. The hydrophobic layer is formed from ZnO nanowires and stearic acid, and the hydrophilic layer is formed from just the ZnO nanowires. The Janus mesh is made by growing the ZnO nanowires on the first and second sides of the brass mesh using a calcining step. The first side of the brass mesh is sprayed with stearic acid to form the hydrophobic layer. The second side is treated with ultraviolet radiation to degrade any of the stearic acid that migrated to the second side via capillary action, thus forming the hydrophilic layer made from just the ZnO nanowires.

The invention discloses extension glue as well as a preparation method and application thereof, and belongs to the technical field of manicure. The extension glue provided by the invention comprises aliphatic polyurethane acrylate, modified epoxy acrylate and fumed silica, the fumed silica is a nano-scale filler, the refractive index of the fumed silica is low and is close to that of the aliphatic polyurethane acrylate and that of the modified epoxy acrylate, and the fumed silica is a nano-scale filler. The influence of reflection and refraction of light in the penetrating process on transparency is small, so that the extension glue has higher transparency. Moreover, the fumed silica can enhance the moldability of the extension glue, and has a shaping function, so that the extension glue omits a complex method of a paper support, and the process is simplified. Besides, the mercaptan monomer not only can promote the surface drying of the extension glue under a 365nm LED light source curing condition, but also can enhance the reactivity and sensitivity of a free radical polymerization system of the resin under ultraviolet irradiation, so that the color adding requirement is well met, and the deep curing of a colored system is facilitated.

The invention provides a wastewater multi-stage treatment device for paper production, and relates to the technical field of wastewater treatment.The wastewater multi-stage treatment device comprises a tank body, a disinfection mechanism is arranged in the tank body, the outer surface of an inner cylinder is rotationally connected with a rotating ring plate through a bearing, and the upper surface of the rotating ring plate is fixedly connected with a first gear ring; the outer surface of the inner cylinder is rotatably connected with a plurality of supporting rods through bearings, and the outer surfaces of the supporting rods are fixedly connected with first gears. According to the invention, the ultraviolet lamp mounted on the outer surface of the rotating cylinder realizes multi-angle dynamic irradiation; by means of the design, the contact area of ozone and wastewater is remarkably increased, the coverage range and the sterilization path of the ultraviolet lamp are more comprehensive, the two treatment modes of ozone sterilization and ultraviolet irradiation act synergistically, the inactivation and decomposition effects on bacteria, viruses, organic pollutants and the like in the wastewater are effectively enhanced, the overall sterilization treatment efficiency is greatly improved, and the treatment cost is reduced. The wastewater treatment quality is ensured.