374 results about "Ultraviolet irradiation" patented technology

The invention discloses a surface protective film and a preparation method thereof, and belongs to the technical field of protective films. The surface protection film comprises a surface layer, a core layer and a bonding layer which are arranged in sequence, the surface layer comprises first polypropylene matrix resin, an organic ultraviolet absorbent and an inorganic ultraviolet screening agent; the core layer comprises second polypropylene matrix resin, polyaryletherketone nanofibers and flaky mica powder of which the surface is coated with cerium oxide; the bonding layer comprises a thermoplastic SEBS elastomer, hydrogenated bonding resin, an organic zinc compound, an ultraviolet light stabilizer and a plasticizer containing an epoxy group. The surface protection film has excellent ultraviolet aging resistance and high temperature resistance, the adhesive force can still be kept within a certain range under the conditions of ultraviolet radiation and high temperature, the surface protection film can be easily unwound under the condition of high temperature, and no residual adhesive is separated out.

The invention relates to the technical field of life cycle prediction, in particular to an intelligent life cycle prediction method and system for a plastic product, and the method comprises the following steps: collecting raw material information, production process parameters and historical use data of the plastic product; based on the collected data, evaluating the aging rate and performance degradation of the plastic product by adopting a statistical analysis method; the aging rate is adjusted based on environmental factors (temperature, humidity and ultraviolet irradiation intensity) so as to simulate the influence under actual use conditions; based on the analysis result, establishing a comprehensive prediction model to reflect the influence of different factors on the life cycle of the plastic product; according to the method, various influence factors are comprehensively considered, advanced analysis technologies are applied, the life cycle of the plastic product can be predicted more accurately, and the comprehensive analysis not only improves the prediction accuracy, but also enhances the credibility of a prediction result.

The invention relates to the technical field of processing, testing or inspection of aircraft parts, and provides an accelerated test method for aging of an aluminum alloy aircraft plate. The method comprises the following steps: carrying out a cyclic alternating test of ultraviolet irradiation and solution soaking on an aluminum alloy sample with an epoxy coating, and simulating a multi-factor coupling aging process in an aviation service environment. And regularly observing and recording micro-defects such as micropores, cracks and spalling on the surface of the coating in a test period, and evaluating the development of the micro-defects of the coating through qualitative and quantitative analysis. And after the test is finished, measuring the residual thickness of the sample, and establishing a relation model between the coating thickness degradation and the change of microdefect development along with the aging time in combination with the microdefect development state. According to the method, the actual aviation service environment can be simulated, the ultraviolet aging and corrosion coupling effect is considered, and accurate prediction and accelerated simulation of the aging behavior of the aluminum alloy aircraft plate with the epoxy coating are achieved.

The invention discloses a preparation method of TiO2 powder with a rutile and anatase core-shell structure, and particularly relates to the technical field of photocatalytic material preparation. According to the method, rutile phase TiO2 powder is used as a core material, a titanate intermediate layer is formed on the surface of a particle through an accurately controlled hydrothermal alkali treatment process, and then a surface layer phase is converted into an anatase phase through acid pickling treatment and controllable heat treatment, so that a complete core-shell heterojunction structure is constructed. The process flow is relatively simple, the cost is controllable, the phase structure conversion rate is high, and the shell thickness can be accurately regulated and controlled. The obtained TiO2 core-shell structure powder has excellent structural stability of a rutile phase and high surface reaction activity of an anatase phase, and shows remarkably enhanced photocatalytic degradation performance under the condition of ultraviolet irradiation, and the catalytic efficiency of the TiO2 core-shell structure powder is greatly improved compared with that of single rutile phase TiO2; and a new process method is provided for large-scale preparation of efficient photocatalytic materials.

The invention discloses an anti-ultraviolet functional plastic particle and a preparation method thereof, and belongs to the technical field of polymer modified materials. The plastic particles are prepared from polyolefin resin subjected to organic silicon-phenolic hydroxyl synergistic grafting modification, 2, 4-dihydroxyacetophenone, an antioxidant, a hindered amine light stabilizer, a lubrication dispersant and an anti-yellowing agent. A siloxane-phenolic hydroxyl bifunctional chain segment is introduced into the surface of a molecular chain of the polyolefin resin subjected to organic silicon-phenolic hydroxyl synergistic grafting modification, so that a flexible-rigid synergistic interface layer is formed; the 2, 4-dihydroxyacetophenone has a hydroxyl and carbonyl conjugated structure and can form hydrogen bond complexation with a matrix, so that free radical degradation is effectively inhibited. The preparation method disclosed by the invention comprises the following three steps: grafting reaction of polyolefin resin subjected to organic silicon-phenolic hydroxyl synergistic grafting modification, high-speed mixing and melt blending granulation. Tests show that after the plastic particles are subjected to 365nm ultraviolet radiation for 500h, the tensile strength retention rate exceeds 94%, the chromatic aberration delta E is less than or equal to 1.5, the oxidation induction time is prolonged to 55min, and the plastic particles have excellent ultraviolet aging resistance, yellowing resistance and thermal oxidation stability.

The invention belongs to the technical field of high polymer materials, and discloses copolyester based on 4-aryl-epsilon-caprolactone and lactide as well as a preparation method and application of the copolyester. The copolyester is composed of a lactide structural unit and a 4-aryl-epsilon-caprolactone structural unit. A rigid benzene ring is introduced into a molecular chain, so that the synergistic balance of toughness and rigidity is successfully realized, and the toughness is remarkably improved while the high strength of the material is maintained. In addition, the introduction of phenyl endows the material with intrinsic ultraviolet resistance, the material can be used as an efficient ultraviolet absorbent, protective spherical protrusions are formed on the surface of the material under ultraviolet irradiation, and photooxidative degradation is effectively delayed. The material can be widely applied to the fields of high-performance degradable packaging, biomedical materials, outdoor articles, textiles and the like.

The application discloses a dispersion type light atomization device suitable for deep removal of perfluorinated compounds in tail water of a sewage plant and a use method, and the device comprises a reactor main body, an ultraviolet lamp group and an external system. The inner wall of the reactor main body is an aluminum film mirror surface with a protective layer; the top is provided with a rotary three-nozzle atomization nozzle; the top is provided with an air outlet pipe; the side of the main body is provided with an air inlet; the bottom is provided with a water tank, and the water tank is provided with a condensing system and a water outlet pipe below. The ultraviolet lamp group has two groups of upper and lower lamps, each group has three lamp tubes with a main wavelength of 185 nm and three lamp tubes with a main wavelength of 254 nm, and the lamp tubes are distributed at intervals, and an air stirrer is located on both sides of the lamp tubes; the two groups of lamp tubes are provided with a funnel-shaped reflection buffer. The external system has an atomization system and an air system. The application utilizes atomization and ultraviolet irradiation to manufacture a micro-ozone environment, so that the flow state operation is used to improve the ozone yield and the mass transfer efficiency of the ozone, the ozone manufacturing cost is reduced, the utilization rate of the ozone is improved, the removal rate of the perfluorinated compounds is enhanced, and the device has the advantages of small occupation area and convenient use.

The application relates to a kind of axial flux motor stator impregnation rapid setting method, device and equipment, including the surface of stator end portion is divided into a plurality of solidification micro area according to the three-dimensional grid model data of stator end portion;Multi-objective optimization model is constructed, and the multi-objective optimization model is with the ultraviolet irradiation intensity, irradiation time and thermal catalytic temperature of each solidification micro area as decision variable, with surface curing time, resin temperature rise peak value and total energy consumption of irradiation as optimization goal, obtain pareto optimal solution set, each pareto optimal solution corresponds a group of the ultraviolet irradiation intensity, irradiation time and thermal catalytic temperature of multiple solidification micro area;From pareto optimal solution set, select the solution with the shortest surface curing time as target solution;According to the ultraviolet irradiation intensity, irradiation time and thermal catalytic temperature of multiple solidification micro area corresponding to target solution, control ultraviolet lamp array to carry out partition scanning irradiation to stator end portion, and control infrared heater to carry out partition heating to stator end portion.

1. The name of the design product: ultraviolet irradiation device. 2. The use of the design product: used for curing and surface treatment of products by ultraviolet light. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. The top view of design 1 has been shown in the perspective view of design 1, and the top view of design 2 has been shown in the perspective view of design 2, so the top view of design 1 is omitted; the top view of design 2 is omitted. 6. Design 1 is designated as the basic design. 7. Other circumstances that need to be explained Other explanations: mark A, B part as transparent material.

The invention discloses an ultrasonic-assisted photocatalytic precious metal leaching method, and belongs to the technical field of precious metal recovery. The method comprises the following steps: (1) material pretreatment: treating electronic waste powder containing gold, silver and copper into electronic waste powder capable of being leached by a proper method; (2) preparing a reaction system: adding electronic waste powder containing gold, silver and copper into a leaching solvent, then sequentially adding FeCl3 and a photocatalyst, and uniformly stirring; (3) photocatalytic leaching: carrying out ultrasonic-assisted leaching reaction on the suspension reaction system under ultraviolet irradiation; and (4) solid-liquid separation is conducted, and leaching liquid containing precious metal and leaching residues are obtained. According to the method, the synergistic effect of FeCl3 and the photocatalyst is combined, efficient leaching of precious metal is achieved under ultraviolet irradiation, and the method has the advantages of being environmentally friendly, efficient, good in cyclicity, mild in condition, easy to operate and the like, is suitable for large-scale recovery of precious metal from electronic waste containing gold, silver and copper and has important economic and environmental significance.

The application provides a two-stage reverse osmosis device for processing traditional Chinese medicine decoction pieces, and relates to the technical field of reverse osmosis devices, which comprises a base, a vertical frame fixed to the top of the base, an osmosis assembly installed on the vertical frame, a rotating frame fixed to the bottom of the osmosis assembly, a sterilization and disinfection assembly rotatably installed on the top of the rotating frame, and a driving assembly arranged at the connection between the sterilization and disinfection assembly and the osmosis assembly. The rotating shaft is driven to rotate by the first motor, the rotating discs on the four annular cavities are driven to rotate, the circular plate inside the annular cavity is driven to slide inside the annular cavity, the water inside the annular cavity is driven to flow, the water inside the annular cavity can be irradiated by the ultraviolet lamp strip, the water is completely sterilized and disinfected, the four annular cavities are alternately opened and closed by the driving assembly, part of the water can be saved while the continuous water inlet and water outlet are maintained, the water is independently sterilized and disinfected, and the ultraviolet irradiation time is increased.

The invention provides an ultraviolet radiation-hot air coupled rotary multilayer edible mushroom drying device and method, and relates to the technical field of food processing machinery, the ultraviolet radiation-hot air coupled rotary multilayer edible mushroom drying device comprises an ultraviolet radiation system, a rotary rack system, an airflow distribution system and a hot air circulation system; the ultraviolet radiation system is used for carrying out ultraviolet treatment on materials on the charging tray; the rotary rack system is used for driving the material disc to rotate; the air flow distribution system is used for conveying air to the drying chamber; the hot air circulating system is used for providing hot air; and the material tray is arranged in the drying box body. According to the invention, ultraviolet radiation and hot air drying processes are carried out synergistically, and a rotary multi-layer material structure and an airflow distribution chamber structure are combined, so that airflow uniformity and heat efficiency in the drying process are improved while uniform ultraviolet radiation of multi-layer materials is ensured.

The present application relates to the technical field of biological materials, in particular to a light-responsive drug gel carrier and a preparation method thereof, in order to improve the controlled release function of the hydrogel material, the methyl methacrylate nitrobenzene compound containing nitrobenzene structure, hydantoin structure and propylene structure is prepared first, under the action of a photoinitiator, the double bond is crosslinked with methyl methacrylate and ethylene glycol methacrylate to form a hydrophilic gel network, so that the drug gel carrier is obtained; wherein the nitrobenzene structure has photosensitivity, and the crosslinking structure will be broken under ultraviolet irradiation, thereby reducing the stability of the gel material, destroying the rearrangement of the gel micelle structure, and realizing the release of the loaded drug; and the hydantoin structure introduced in the methyl methacrylate nitrobenzene compound also has good antibacterial performance, which can effectively avoid wound infection and improve wound recovery.

The utility model discloses an irradiation machine for processing a power cable, and relates to the field of wire and cable irradiation processing, the irradiation machine comprises an ultraviolet irradiation machine and an extruding machine, one side of the ultraviolet irradiation machine is provided with a dehumidification assembly, one side of the dehumidification assembly is provided with a cooling pool, and the other side of the dehumidification assembly is provided with a heat exchanger. The cooling pond is composed of a first water collecting tank, a second water collecting tank and a third water collecting tank, a water inlet is formed in the side face of the first water collecting tank, two sets of guide assemblies are rotationally connected to the interior of the cooling pond, and each guide assembly comprises a guide wheel. According to the utility model, the cooling pool is arranged, the cooling pool is composed of three groups of water collecting tanks, and the overflow tank is arranged between two adjacent groups of water collecting tanks, so that cooling water can be poured on the cable in a grading manner, when the cooling water circularly absorbs the temperature of the cable, the temperature of the cooling water rises, and the three groups of water collecting tanks can help the cooling water to fully contact with air; and the cooling water is quickly cooled, so that the cable cooling efficiency of the cooling water is improved.

The invention relates to the technical field of hydrogel, in particular to bioactive bionic gradient hydrogel as well as a preparation method and application thereof.The preparation method comprises the following steps: dissolving quaternary ammonium salt chitosan, 3-acrylamidophenylboronic acid, platelet-rich plasma and phenyl (2, 4, 6-trimethylbenzoyl) lithium phosphate in deionized water, stirring until complete dissolution, centrifuging, and drying to obtain a hydrogel solution containing chitosan, 3-acrylamidophenylboronic acid, platelet-rich plasma and phenyl (2, 4, 6-trimethylbenzoyl) lithium phosphate; pre-polymerization liquid is obtained; preparing a tannic acid-iron ion (TA-Fe < 3 + >) mixed solution; adding the pre-polymerized liquid into a mold, and carrying out ultraviolet radiation crosslinking to obtain hydrogel; the hydrogel part is soaked in a tannic acid-iron ion mixed solution, and the gradient hydrogel is obtained. According to the biologically active bionic gradient hydrogel as well as the preparation method and the application thereof, the dual-network hydrogel is soaked in a TA-Fe < 3 + > solution to form a TA-Fe < 3 + > coordinated concentration gradient, so that the hard-to-soft mechanical gradient of tissues such as bone-cartilage, rotator cuff, achilles tendon and the like is accurately simulated.

This utility model relates to a germination device for enriching soybean isoflavones, comprising a box body, a perforated tray disposed within the box body, and an ultraviolet lamp assembly positioned above the perforated tray. The ultraviolet lamp assembly emits ultraviolet light of at least UV-B wavelength. A lifting assembly is provided between the ultraviolet lamp assembly and the box body, and / or between the perforated tray and the box body. A spray assembly and a circulating air duct assembly are provided within the box body. An air duct control assembly, connected to the circulating air duct assembly, is located outside the box body and is used to regulate the temperature and humidity within the box body. This utility model employs a closed or semi-closed design, with a built-in ultraviolet lamp assembly emitting UV-B wavelength ultraviolet light. The ultraviolet lamps can be used individually or in combination, facilitating the adjustment of UV-B irradiation intensity and its uniformity, meeting the ultraviolet irradiation intensity requirements of germinating soybeans at different growth stages, and increasing the isoflavone content in germinating soybeans.

The application provides a recycled water irrigation system based on ultraviolet peroxo organic acid combination and a water treatment method. The system comprises a shell, a POA dosing tank and a control unit. The lower part of the shell is provided with a water inlet, and the upper part is provided with a water outlet. The water inlet is provided with a lifting pump. A glass liner is arranged in the shell. The interior of the glass liner is divided into a first chamber, a second chamber and a third chamber which are sequentially communicated by a baffle. A grid is arranged in the first chamber. The inner wall of the first chamber is provided with spiral flow guide lines. An ultraviolet light intensity sensor is arranged in the second chamber. The top of the third chamber is provided with a UV-Vis spectrometer with a built-in quartz cuvette. A nozzle, a stirring mechanism, a spiral mixer and a glass electrode pH sensor are arranged in the third chamber. The bottom of the third chamber is provided with an ultraviolet lamp. The system solves the safety and applicability problems of direct irrigation of recycled water through the synergistic effect of ultraviolet irradiation and oxidation.

The invention relates to the technical field of sewage treatment, and discloses ultraviolet disinfection equipment for sewage treatment, which comprises a horizontally arranged reaction cavity and a plurality of quartz sleeves. In the flowing process of the sewage in the reaction cavity, the sewage is continuously directly irradiated and irradiated by the reflected ultraviolet rays. Ultraviolet disinfection destroys the DNA / RNA structure of the microorganisms, so that the microorganisms lose the reproductive capacity, and the purposes of disinfection and sterilization are achieved. Purified water fully disinfected by ultraviolet rays is discharged from a water outlet pipe at the other end of the reaction cavity, so that the whole disinfection process is completed. The combination of the ultraviolet lamp tubes arranged circumferentially and the tubular reflectors forms an efficient ultraviolet radiation field, so that ultraviolet energy is fully utilized, and energy waste is reduced. The reflector effectively makes up the irradiation blind area between the lamp tubes, and ensures the uniformity of dose distribution on the cross section of water flow.

The invention relates to the technical field of metal surface treatment, in particular to a treatment process of a hydrophilic implant. According to the process, the implant is sequentially subjected to sand blasting and acid etching, compound acid solution activation, gradient alkaline neutralization, multi-stage ultrasonic cleaning, low-temperature plasma modification, nitrogen protection ultraviolet radiation and normal saline sealing storage treatment. Through a multi-step synergistic effect, a stable hydrophilic micro-nano structure is constructed on the surface of the implant, a large number of Ti-OH hydrophilic groups are formed, carbon and hydrogen atom adsorption is effectively isolated, and the problems that the hydrophilicity of an existing implant is prone to loss, osteoblast climbing is difficult, and the healing period is long are solved. The implant treated by the process is durable and stable in hydrophilicity, the healing period after implantation is shortened to about one month, the planting survival rate is remarkably increased, the process is green and safe, and industrial production can be realized.

The present application relates to a kind of tungsten oxide-based super-amphiphobic photochromic coating material preparation method, application, in the preparation process, zinc ion and sodium dodecyl benzene sulfonate are introduced to the morphology of WO3 / ZnO powder is doubly regulated.In the low surface energy treatment of WO3 / ZnO powder after improvement method, finally obtainable reentrant micro / nano structure of flower-like.The prepared super-amphiphobic photochromic coating is blue within 3min under ultraviolet irradiation, fade after heating 90min in air, photochromism obtains great promotion.The contact angle of the coating to water and edible oil is all greater than 150°.In addition, when facing sand impact, water impact, corrosive solution, long-term ultraviolet irradiation, still maintain super-amphiphobicity, and also have antifouling and self-cleaning ability.The present application provides new insights for developing super-amphiphobic photochromic material with good stability and high repeatability, and has good application prospect in the field of optical information storage, anti-fake and rewritable material.

The invention discloses a preparation method of natural polysaccharide-based organic / inorganic hybrid photo-thermal antibacterial hydrogel, which comprises the following steps: 1) mixing and dissolving methacrylated gelatin, hydroformylated sodium alginate, tannic acid and a photoinitiator in a phosphate buffer solution to obtain a solution A; 2) dissolving carboxymethyl chitosan in a phosphate buffer solution to obtain a solution B; 3) adding a gold nanorod aqueous dispersion into the solution B to obtain a solution C; the volume ratio of the gold nanorod aqueous dispersion to the solution B is (1.5: 1)-(2: 1), the length of the gold nanorod is 30-70nm, and the width of the gold nanorod is 5-10nm; 4) blending the solution A and the solution C, and injecting to obtain a network hydrogel I; and 5) carrying out ultraviolet irradiation crosslinking on the hydrogel I to obtain the dual-network hydrogel II. The antibacterial hydrogel can be formed in a mold with a complex shape, in-situ injection photo-crosslinking gel forming can be carried out, a photo-thermal heating effect under near-infrared light irradiation can be achieved, and the range required by photo-thermal antibacterial can be reached.

This application relates to the field of ultraviolet accelerated aging testing technology, and in particular to a device and method for testing water-resistant and age-resistant silicone ultraviolet accelerated aging. The device includes a sleeve with a drive shaft rotatably mounted inside. A detachable cover is mounted on the sleeve, and a turntable is rotatably mounted inside the cover. A tester is mounted on the turntable and located inside the sleeve. The tester includes a polygonal frame mounted on the turntable and located inside the sleeve. Each face of the frame is embedded with a detachable clamp. This invention drives the polygonal frame to rotate at a uniform speed via the drive shaft, causing the outer surface of the silicone sample to circulate among uniformly arranged ultraviolet lamps. This avoids the irradiation attenuation problem of strong irradiation at the center and weak irradiation at the edges caused by traditional fixed irradiation methods. This ensures that all areas of the silicone sample receive uniform and stable ultraviolet irradiation, guaranteeing consistent aging levels and significantly improving the repeatability, accuracy, and reliability of the test data.

The invention discloses a reworkable low-modulus OCA (Optical Clear Adhesive) glue, an adhesive as well as a preparation method and application thereof. The OCA glue is prepared from the following raw material components in parts by weight: 5 to 14 parts of butyl acrylate, 15 to 25 parts of 2-ethylhexyl acrylate, 2.5 to 5.5 parts of hydroxybutyl acrylate, 5 to 10 parts of lauryl acrylate, 0.0003 to 0.0008 part of an initiator and 40 to 70 parts of a solvent. The OCA adhesive prepared by the invention has lower storage modulus, glass transition temperature and higher deformation quantity in a low-temperature environment, can effectively dissipate stress generated in a bending process, and prevents a folding module from generating a layering phenomenon in the bending process. The OCA adhesive prepared by the invention has good reworking performance, can be easily peeled off from a folding screen under ultraviolet irradiation, is convenient to replace a protective film, and prolongs the service life.

To provide a shower device for a pet, capable of inactivating and removing bacteria and parasites attached to the body surface of the pet without requiring excessive cost.SOLUTION: The shower device for the pet is equipped with a plurality of metal pipes 120 as an air shower means for jetting air to the body surface of the pet 9 on the inner surface side of a box 10 for housing at least the body part of the pet 9, wherein the box 10 is equipped with a plurality of infrared lamps 400 as an ultraviolet irradiation means for irradiating the body surface of the housed pet 9 with ultraviolet rays. Bacteria and / or parasites present on the body surface are inactivated and / or removed by irradiating a part where the body hair of the pet 9 is pushed aside to expose the skin with ultraviolet rays by an ultraviolet irradiation means while injecting air from an injection port 1200 of a metal pipe 120.SELECTED DRAWING: Figure 1

The present invention provides a phase shifter that can be manufactured using a CMOS process, exhibits low optical propagation loss, can maintain refractive index changes without power supply, and allows for the resetting of those refractive index changes. [Solution] The phase shifter 100 of the present invention comprises an optical waveguide 101 composed of a core 105 and a cladding 106 surrounding the core 105, a substrate 102 on which the optical waveguide 101 is mounted, a heating means 103 for heating the core 105, and an ultraviolet irradiation means 104 for irradiating the core 105 with ultraviolet U, wherein the core 105 mainly contains silicon nitride, and the density of silicon dangling bonds of silicon nitride is 10 in terms of spin density 18 cm -3 The above 10 20 cm -3 The following applies:

The invention discloses a fluorescent pigment compound as well as a preparation method and application thereof. The chemical structural formula of the fluorescent pigment compound is shown in the specification. Wherein n is an integer from 2 to 6, and R1 and R2 are respectively and independently selected from C1-C3 alkyl groups. By introducing 4-tert-butylphenyl and tert-butylsilane ether chains, the compound has excellent solubility, film-forming property, high fluorescence quantum yield (gt, 95%) and light stability (retention rate gt, 90% after ultraviolet irradiation for 500 hours). The preparation method is simple, is suitable for a solution processing technology, and can be widely applied to the fields of OLEDs, light conversion adhesive films, fluorescence sensing, biological imaging and the like.

The application discloses a modified crRNA, a light-controlled nucleic acid detection system, a kit and application, and belongs to the cross field of biotechnology, intelligent sensing and molecular diagnosis. In view of the technical defects of strong target sequence dependence and high ultraviolet irradiation requirement of the existing light-controlled CRISPR technology, the application innovatively introduces a photosensitive protection group 6-nitropiperidin oxymethyl (NPOM) at a specific key node of a stem loop skeleton of crRNA maintaining conformation. In the constant temperature amplification stage, preferred double-site cooperative modification can transiently inhibit RNP complex assembly to realize target non-interference enrichment; subsequently, only 10 mW / cm 2 of extremely low intensity ultraviolet light irradiation for 30 seconds can restore the crRNA conformation and activate the trans cleavage. The preferred technical scheme of the application can eliminate the target sequence limitation, realizes a detection limit of as low as 2 copies in a single reaction tube, and the result can be obtained within 15 minutes. The system is widely applicable to rapid diagnosis of infectious agents, high-specificity typing of single nucleotide polymorphism and portable intelligent molecular diagnosis terminal.

The present invention is an ultraviolet-curable silicone composition containing the following components (A)-(D). (A) an organopolysiloxane resin having, as constituent units, a unit represented by formula (1) below, an R1 3SiO1 / 2 unit, an R1 2SiO2 / 2 unit, and an SiO4 / 2unit, wherein 5% or more of the total number of monovalent organic groups bonded to silicon atoms are aryl groups; (B) an organic silicon compound having two or more hydrogen atoms bonded to the silicon atoms in one molecule and having an acryloyloxyalkyl group, a methacryloyloxyalkyl group, an acryloyloxyalkyloxy group, or a methacryloyloxyalkyloxy group bonded to a silicon atom; (C) a photoactive platinum complex catalyst; and (D) a photopolymerization initiator. As a result, the present invention provides an ultraviolet-curable silicone composition that can be cured by ultraviolet irradiation without requiring a heating step in the atmosphere, and that provides a cured product having good adhesive strength.

The invention relates to a slow-release pesticide preparation containing modified montmorillonite and application of the slow-release pesticide preparation, and belongs to the technical field of pesticide preparations. Nano silicon dioxide and montmorillonite are mixed and calcined to form a rigid porous framework, then a complex generated by ferroferric oxide and chitosan is loaded on the surface of the composite framework through physical adsorption and interface bonding, and the slow-release pesticide preparation containing modified montmorillonite is obtained. The preparation method comprises the following steps: modifying montmorillonite to form modified montmorillonite, carrying out surface functionalization treatment with a silane coupling agent to enable the modified montmorillonite to cooperate with a polylactic acid-glycolic acid copolymer to form a compact shell layer, wrapping a pesticide inside, and carrying out selenylation treatment to form a composite structure of a rigid structure and the shell layer, so that the problem of weak mechanical strength of a traditional sustained release preparation is solved; the rigid framework can resist extrusion of field soil, the compact shell layer and the selenylation layer synergistically resist rain wash, and meanwhile, the layered barrier property of the montmorillonite and the antioxidant property of the selenylation layer form synergistic protection, so that the pesticide preparation still has a good retention rate under long-time ultraviolet irradiation, and the stability of the preparation in a complex field environment is remarkably improved.

The present application relates to the technical field of functional film, in particular to a functional film with controllable adhesive property and preparation method thereof.The functional film comprises a film substrate, a pressure-sensitive adhesive layer coated on the film substrate, and a release film layer temporarily attached to the pressure-sensitive adhesive layer.The functional film has the property of increasing adhesive property after ultraviolet irradiation, and the ratio of the peeling force F2 after ultraviolet irradiation to the peeling force F1 before ultraviolet irradiation is greater than 5.The current on the adhesive surface of the functional film prepared by the present application is 10-1000 pA, and the through current is 50-500 pA.Compared with the prior art, the functional film prepared by the present application has controllable current on the adhesive surface and through current, excellent electrical performance, avoids the problems of current accumulation in the adhesive layer, interference with signal transmission accuracy, and local overheating, and improves the application safety of the material.