90 results about "Solid film" patented technology

This invention discloses a controlled-release solid film formulation for pesticides, its preparation method, and its applications. This invention upgrades pesticides from liquid / powder formulations to solid film formulations, utilizing the solid film to physically block pesticide drift, diffusion, and loss, reducing off-target effects at the source. Through the combined use of physical and chemical techniques, pesticides are uniformly distributed within the solid film, and the pesticide release cycle is synchronized with the solid film degradation, achieving precise controlled release. This solid film formulation is applied from the beginning of crop growth, synchronized with the plant growth cycle, providing early preventative effects through quantitative controlled release of pesticides. This solid film formulation also functions as a mulch film; its preparation process is simple and easy, it is completely degradable and requires no recycling, reducing costs. The identification method of this invention utilizes selective precipitation separation technology, achieving high pesticide extraction efficiency of 95%-98%, especially suitable for low water-soluble pesticides. The drug identification process is simple to operate: the entire process takes less than 4 hours, requires no complex purification steps, and is suitable for batch sample processing.

The invention relates to the technical field of film covering, in particular to oil covering and coating equipment. Comprising a rack, an unwinding mechanism, a winding mechanism, a coating mechanism and an oil coating curing mechanism, the unwinding mechanism, the winding mechanism, the coating mechanism and the oil coating curing mechanism are arranged on the rack, the coating mechanism comprises a first rotating roller, a second rotating roller and a coating assembly, and an oil coating gap is formed between the first rotating roller and the second rotating roller; an oil outlet of the coating assembly is used for coating the surface of a roller body of the first rotating roller with a coating, the oil coating curing mechanism comprises a heating curing unit and an ultraviolet curing unit, and a to-be-coated coiled material is sequentially conveyed to the winding mechanism to be wound from the unwinding mechanism along the coating mechanism and the oil coating curing mechanism. According to the invention, a coating oil curing film-forming process is adopted, a transparent solid film is formed on the surface layer of the picture of the to-be-coated coiled material in a liquid oil and liquid UV oil dual-purpose coating film curing mode, the coating film has strong stereoscopic impression, and the problems of short service life, poor ductility, difficult pasting construction and the like of the traditional coating film are effectively solved.

The present invention relates to a method for obtaining an n-type doped metal chalcogenide quantum dot solid film, the method comprising: forming a metal chalcogenide quantum dot solid film; performing an n-type doping process on a plurality of metal chalcogenide quantum dots of the metal chalcogenide quantum dot solid film to make them exhibit intraband absorption, the process including partially replacing chalcogen element atoms with halogen atoms in the plurality of metal chalcogenide quantum dots, and disposing a substance on the plurality of metal chalcogenide quantum dots to avoid oxygen p-type doping of the metal chalcogenide quantum dots. The present invention also relates to an optoelectronic device, the optoelectronic device comprising: an n-type doped metal chalcogenide quantum dot solid film (A) obtained according to the method; and a first electrode (E1) and a second electrode (E2) physically contacting two corresponding spaced-apart regions of the film (A).

The invention discloses a method for efficiently extracting rose exosomes, which comprises the following steps: (1) pretreatment of rose petals: refrigerating and pre-cooling fresh rose petals, and then alternately irradiating with red light and blue light; (2) preparing rose homogenate: mixing rose petals with an antioxidant solvent, and homogenizing to obtain the rose homogenate; (3) exosome extraction: performing ultrasonic treatment on the rose homogenate; (4) exosome purification: filtering the rose homogenate to remove residues so as to obtain a rose exosome purified solution; and (5) exosome preservation: adding a solid membrane component into the exosome purified liquid, and freeze-drying to obtain exosome powder. Red light and blue light are alternately irradiated to promote release of the exosome in cells, and the composite antioxidant reagent is adopted to protect the exosome, so that the extraction efficiency and the integrity of active ingredients in the exosome are remarkably improved, the extraction cost is reduced, and powerful support is provided for large-scale industrial production.

The application discloses a kind of low pressure jet flow plasma enhanced chemical vapor deposition equipment and its production method, it is related to chemical vapor deposition field, including: plasma generator, cleavage cavity, growth cavity and recovery device connected in sequence, the plasma generator, cleavage cavity, growth cavity and recovery device inside form the channel of sequential communication;The growth cavity is used to transport metal particles inside;The outlet of the growth cavity is connected by transport pipeline and recovery device;The metal particles can pass through the channel between the growth cavity inner cavity and the inside of the transport pipeline under the action of gravity, into the recovery device inside.Adopting the present scheme, metal particle powder can directly pass through plasma to complete in-situ production reaction of solid film on the surface of metal particle, so that in-situ reaction time reaches millisecond order, compared with traditional PECVD equipment, reaction time is greatly shortened, thereby improving production / experiment efficiency.

This invention relates to the field of metal matrix composite material preparation technology, and discloses a method for preparing a bundled vanadium carbide reinforced steel matrix composite material, comprising: immersing vanadium wire in a pretreatment chemical isolation liquid and drying it to form a precursor solid film on the surface; fabricating a preform from the vanadium wire with the solid film on the surface using a three-dimensional orthogonal weaving process; placing the preform in a vacuum sintering furnace and heating it to complete solid-phase pre-alloying; fixing the preform in a mold and preheating it under a protective atmosphere; melting a high-carbon steel matrix material until it is completely liquefied, injecting it into the mold to immerse the preform, and cooling it to obtain a composite preform block; subjecting the composite preform block to in-situ reaction diffusion heat treatment to obtain the composite material. This invention prevents the thermal loss of vanadium wire during liquid casting and, through in-situ diffusion reaction, allows the generated vanadium carbide to inherit the initial weaving morphology, achieving a three-dimensional bundled uniform distribution of the reinforcing phase within the steel matrix.

This invention discloses a hydrogel fire extinguishing material for mines and its preparation method, specifically relating to the field of fire extinguishing materials technology. The material comprises solid water glass, sodium bicarbonate, polyvinyl alcohol, silicon carbide, and water. The fire extinguishing gel material of this invention possesses the characteristics of simple preparation process, low raw material requirements, low cost, controllable gelation time, good water retention, environmental friendliness, excellent high-temperature stability, and excellent thermal conductivity. Even after complete water loss, it can still form a crack-free solid film on the coal surface to isolate the coal-oxygen reaction, effectively solving the problems of traditional inorganic fire extinguishing gels being prone to water loss and cracking, and releasing toxic gases during use. By changing the material ratio, gelation can be controlled over a wide time range, meeting different needs for on-site filling, long-distance transportation, and storage in coal mines.

The embodiment of the invention provides a Fe3O4 (at) COF electrochemical sensor based on a covalent organic framework, and a preparation method and application thereof. The electrochemical sensor comprises a base electrode with the surface modified with a solid film; the solid film is a Fe3O4 (at) COF composite material; the Fe3O4-coated COF composite material comprises an inner core formed by ferroferric oxide with a porous structure and a COF shell layer attached to the surface of the inner core, the COF shell layer is a covalent organic framework layer formed by copolymerization of an aromatic aldehyde compound and a polyamino aromatic compound. According to the Fe3O4 (at) COF electrochemical sensor based on the covalent organic framework, the preparation method and the application provided by the invention, quinolone antibiotic molecules such as norfloxacin and the like can be detected, and the detection limit can reach 1.927 * 10 <-13 > mol / L; and the method can be widely applied to detection of quinolone antibiotics such as norfloxacin in milk and environmental water samples.

The invention provides solid thin film material processing equipment and a control method thereof, and relates to the field of laser-induced forward transfer processing.The solid thin film material processing equipment uses two sets of adjusting devices to independently adjust and control the levelness of a donor substrate and a receiving substrate, so that the donor substrate and the receiving substrate are absolutely horizontal, and then high-precision relative parallelism is achieved; besides, the equipment stably adsorbs the donor substrate through the air pressure adsorption clamp, and realizes accurate control of the donor and the receiving substrate from an attached state to a state of keeping a micron-order or even submicron-order gap by combining with vertical movement of the piezoelectric platform.

The present invention aims to provide a method for manufacturing clothing that makes it easier to break up clumps of red blood cells in the blood vessels of the human body when worn, compared to a method in which a fixing step is carried out without carrying out an irradiation step after the adhering step. [Solution] The clothing manufacturing method F10A of the present invention includes an attachment step S20 of attaching a mixed fluid containing a liquid, a binder resin, and silicon dioxide powder having an average particle size of 10 μm or less as a fluid film to one surface 12B of a fabric 12, an irradiation step S30 of irradiating the fluid film with terahertz waves after the attachment step S20, and a fixing step S40 of fixing a solid film 16 obtained by removing the liquid from the fluid film to one surface 12B after the irradiation step S30.

The embodiment of the present application provides a Fe3O4@COF electrochemical sensor based on a covalent organic framework, a preparation method and application, the electrochemical sensor comprises: a base electrode which is surface-modified with a solid film; the solid film is a Fe3O4@COF composite material; the Fe3O4@COF composite material comprises: a core formed by a porous structure of Fe3O4 and a COF shell layer attached to the surface of the core; the COF shell layer is a covalent organic framework layer formed by copolymerization of aromatic aldehyde compounds and polyamino aromatic compounds. The Fe3O4@COF electrochemical sensor based on the covalent organic framework, the preparation method and the application can detect quinolone antibiotic molecules such as norfloxacin, and the detection limit can reach 1.927*10 ‑ 13 mol / L; and can be widely applied to the detection of quinolone antibiotics such as norfloxacin in milk and environmental water samples.

The present invention relates to the technical field of storage tank safety devices, and specifically discloses a sealing structure. The sealing structure includes a valve seat, a valve disc, a sealing diaphragm, and a solid film circular plate. The lower surface of the valve disc is formed with two or more annular grooves. The sealing diaphragm is disposed on the lower surface of the valve disc and covers the annular grooves. The solid film circular plate is disposed in the middle of the lower surface of the valve disc and is used to compress the sealing diaphragm. The valve seat has two or more sealing cones, the tops of the sealing cones facing upward, and the sealing cones on the valve seat and the annular grooves on the valve disc are arranged to correspond to each other. Through this structural configuration, a complete seal can be achieved between the valve disc and the valve seat, achieving zero leakage.

In various embodiments, a method of forming an electrode includes providing a current collector, providing a substantially solid layer of electrode attachment substance on a side of the current collector, providing electrochemically active material adjacent the substantially solid layer of the electrode attachment substance, and adhering the electrochemically active material to the side of the current collector via the electrode attachment substance. In some examples, the electrochemically active material is provided in powder form. In some examples, the electrochemically active material is provided between the substantially solid layer of electrode attachment substance and the current collector.

The invention provides a method for preparing a perovskite thin film through ultrasound, and the method comprises the steps: coating a substrate with a perovskite raw material precursor solution, and then carrying out the annealing treatment, thereby obtaining a first composite material; placing the first composite material in a saturated solution of a perovskite raw material, preheating the first composite material, and then synchronously starting gradient heating and ultrasonic treatment to obtain a second composite material; and carrying out heat treatment on the second composite material to obtain the perovskite thin film. According to the method for ultrasonically preparing the perovskite thin film, the solid thin film formed by coating and annealing the perovskite raw material precursor solution is subjected to gradient heating and ultrasonic treatment in the saturated solution of the perovskite raw material at the same time, perovskite microcrystals can be separated out in an anti-temperature manner, and the perovskite microcrystals are ultrasonically grown on the perovskite thin film; the secondary growth of the perovskite thin film on the substrate coated with the perovskite thin film is realized, and the crystallization property of the thin film is improved.

The embodiment of the invention provides an electrochemical sensor for detecting penicillin as well as a preparation method and application of the electrochemical sensor. The electrochemical sensor comprises a base electrode, a first solid film and a second solid film, wherein the first solid film and the second solid film are sequentially stacked on the base electrode; the first solid film is a multi-walled carbon nanotube, and the second solid film is an MIL-101-NH2 (Cr) composite material; the MIL-101-NH2 (Cr) composite material is a metal organic framework material formed by copolymerization of trivalent chromium salt and 2-aminoterephthalic acid. According to the electrochemical sensor for detecting penicillin as well as the preparation method and the application of the electrochemical sensor, penicillin molecules can be detected, and the detection limit can reach 2.071 mu mol / L; the method can be widely applied to detection of penicillin in foods such as dairy products.

The invention discloses a photoinduced fluorescence enhanced vinyl ether compound as well as a preparation method and application thereof. The vinyl ether compound comprises a sulfuryl vinyl ether compound, a carbon-based vinyl ether compound and an ester-based vinyl ether compound, the vinyl ether compound is subjected to photochemical rearrangement under the irradiation of 254 nm ultraviolet light to generate a planar fused ring structure, and the fluorescence intensity is greatly improved. Through substituent group regulation and control, accurate adjustment of emission wavelength can be realized. The synthesis method is based on click reaction of phenolic monomers and activated alkyne, and the process is simple and efficient. The molecules still keep photoresponsiveness in a solid film (such as a PMMA substrate), are successfully applied to a mask-assisted information input and erasing system, and provide a new technical scheme for the fields of anti-counterfeiting and information storage.

A substrate processing method according to one embodiment of the present disclosure includes preparing a substrate having a target film exposed on a surface of the substrate, forming a liquid film on a surface of the target film by supplying an ionic liquid containing an oxoacid structure having 6 or more carbon atoms to the surface of the substrate at a first temperature, forming a solid film by cooling the substrate to a second temperature lower than the first temperature to solidify the liquid film, and removing the solid film by supplying a polar solvent to the substrate.

The invention discloses a DASAs molecular optical switch capable of realizing solid film isomerization and a synthesis method and application thereof. The DASAs molecular optical switch is 5-((2Z, 4E)-5-(benzyl ((4-methylpyridine-2-yl) methyl) amino)-2-hydroxypent-2, 4-diene-1-subunit)-2, 2-dimethyl-1, 3-dioxane-4, 6-diketone, 4-methylpyridine-2-formaldehyde reacts with benzylamine, then N-benzyl-1-(4-methylpyridine-2-yl) methylamine is synthesized through reduction of sodium borohydride, and then the DASAs molecular optical switch is obtained. The preparation method comprises the following steps: reacting 2, 3-dimethoxy-1, 3-dioxane-4, 6-diketone in methanol, and reacting with 5-(furan-2-yl methylene)-2, 2-dimethyl-1, 3-dioxane-4, 6-diketone in methanol to synthesize the compound. The DASAs molecular photoswitch disclosed by the invention has rapid and reversible isomerization response to visible light and shows remarkable selective color response to metal ions, and in addition, the molecular photoswitch can realize reversible photochromism in a solid state in a polymer substrate. More importantly, the pure-phase solid film prepared by the molecular optical switch can realize photoisomerization, and has huge application potential in the fields of optical information storage and information permanent encryption, metal ion detectors and the like.

Disclosed herein are oral care compositions comprising one or more water-soluble polymers and a whitening agent comprising one or more acyl donors and one or more perhydrolytic enzymes, wherein the oral care composition is in the form of a solid film. Further disclosed herein are methods of making and using the oral care compositions, as well as kits comprising the oral care compositions and a dentifrice comprising at least one source of hydrogen peroxide.

The invention discloses an artificial heart valve, and relates to the technical field of medical instruments, the artificial heart valve comprises a support and three valve leaflets, the valve ring of the support is provided with a suture edge along the radial direction of the valve; each valve leaflet is provided with a fixed edge, a free edge and an underbelly; the lower abdomen is of a solid film structure and is realized by freely lofting and modeling from a fixed edge to a free edge; the fixed edge is fixed to the support, and the free edges of the three valve leaflets define a valve opening. The ratio of the axial height of the valve leaflets to the radius of the valve ring is 1-1.4; the angle between the tangent line of the top end of the fixed edge and the central axis of the valve is 15-25 degrees, simulation analysis shows that the stress of the whole valve leaflet can be reduced by adopting the size proportional relation, and the service life of the valve leaflet can be prolonged.

A method for preparing copper / graphene composite wire by winding method, first, uniformly coating carbon source on pretreated copper foil or laminating solid film-shaped carbon source with pretreated copper foil to make copper-carbon composite, then winding the copper-carbon composite on copper wire, loading into copper pipe with matching inner diameter, then plastic processing of the copper pipe, including hole type rolling and drawing, then cutting off both ends of the plastic processed copper pipe assembly, then putting into CVD furnace, growing graphene on the inside of the copper pipe and the surface of the copper foil. Finally, drawing the above graphene grown copper pipe assembly to obtain high performance copper / graphene composite wire. The copper / graphene composite wire prepared by the method of preparing copper-carbon composite, winding and loading into pipe, plastic processing and CVD growing graphene has uniform distribution of graphene, relatively complete structure, good quality, high electrical conductivity and strength. The wire has good application prospect in the fields of power electronics, electric vehicles and the like.

The present application relates to the technical field of automobile wire harness terminals, in particular to a crimping terminal, which solves the problems of the existing technology that the corrosion inhibitor layer is easy to flow off and the structure of piercing cannot effectively accommodate the oxide layer debris when the copper-aluminum terminal is crimped, comprising a conductor crimping part and a corrosion inhibitor layer, the inner side of the conductor crimping part is formed with a crimping surface for crimping with the conductor of the wire, and the corrosion inhibitor layer covers at least the crimping surface of the conductor crimping part; the corrosion inhibitor layer comprises a carrier and nano-conductive particles dispersed in the carrier, and the carrier is a drying oil; before the conductor crimping part is crimped with the wire, the corrosion inhibitor layer is a liquid coating coated on the crimping surface, and after the conductor crimping part is crimped with the wire, the corrosion inhibitor layer is solidified into a solid film. The beneficial effect is that the drying oil is creatively selected as the carrier of the corrosion inhibitor layer, which is solidified into a tough solid film after being crimped with the aluminum wire. The problem that the liquid coating is easy to flow off under the vibration working condition in the existing technology is solved.

Liquid ink compositions containing quantum dots for optoelectronic display applications are provided. Also provided are solid films formed by drying the ink compositions, optical elements incorporating the solid films, display devices incorporating the optical elements, and methods of forming the solid films, optical elements, and the devices. Liquid ink compositions and solid films made by drying the liquid ink compositions include one or more blue light-absorbing materials in combination with red light-emitting QDs or green light-emitting QDs.

The utility model discloses an evaporation device. The evaporation device comprises a sealing box, a hanging piece and a loading assembly. The suspension part is connected to the sealing box and located in the sealing box. The loading assembly comprises a loading disc and a covering part, the loading disc is detachably connected to the suspension part, a loading position for loading the substrate is arranged on the loading disc, and the covering part is arranged on the loading position so as to fix the substrate on the loading position; the covering part covers a part of the photoresist on the substrate, and the covering part is provided with a process opening in a penetrating manner so as to expose an evaporation region on the substrate. By the adoption of the evaporation device, due to the fact that the covering piece can cover part of the position of the photoresist, a solid film cannot be formed in the covered area of the photoresist, the notch for exposing the photoresist can be formed in the covered area after evaporation is completed, and therefore stripping liquid can directly make contact with the photoresist through the notch, the photoresist can be removed conveniently, and the yield of the photoresist is improved. And the subsequent process is prevented from being influenced. The utility model further discloses a preparation system for the chip.

Components and methods for coating the components are provided. The methods include depositing a coating composition on a substrate that includes about 350 wt. % rare-earth oxides, 45-96.5 wt. % zirconia, and 0.5-4 wt. % alumina, heat treating the coating composition to form a CMAS-resistant thermal barrier coating (TBC) that includes a columnar microstructure with voids in open communication with a surface thereof, wherein the alumina is homogeneously distributed throughout the TBC, contacting the TBC with a film precursor, transporting the film precursor along interior wall surfaces of the voids to form a thin film thereon, wherein the thin film has a thickness on the interior wall surfaces of 10-150 nm, and forming a solid film on the interior wall surfaces of the voids from the film precursor that includes aluminum phosphate and that does not fill the voids that have diameters of 50 nm or greater.

A solid film comprises at least two different metals spatially distributed to form a plurality of amorphous structures exhibiting chirality.

To provide a photon upconversion material that is practical and can be applied to solid films. [Solution] The photon upconversion material of the present invention is an acceptor compound having a π-conjugated condensed polycyclic structure containing at least one aromatic ring unit (where, one of the aromatic ring units is bonded to a group having a chain length of 4 atoms or more, such as sp 3 The compound comprises a carbon atom, a silicon atom bonded to a group having a chain length of 4 or more atoms, a nitrogen atom bonded to a group having a chain length of 4 or more atoms, or a boron atom bonded to a group having a chain length of 4 or more atoms, and a donor compound that imparts triplet energy to the acceptor compound.

Disclosed in the present invention is an inorganic nanophosphor, including a core formed by an inorganic semiconductor, and at least one ligand, wherein at least one of the ligands includes the structure of an organic compound H1. Further disclosed in the present invention is a composition, including the inorganic nanophosphor, an organic solvent and / or an organic resin. The composition helps to form a thin film by means of printing or coating, and a solid film is formed by means of heating. The inorganic nanophosphor can be used in a color converter, wherein the ligand including the structure of the organic compound H1 absorbs light from an excitation light source, transfers energy to the core of the inorganic nanophosphor, and then emits light having a relatively narrow half-peak width. The core of the inorganic nanophosphor is preferably a quantum dot with a photoluminescence spectrum, the wave crest position of which can be adjusted by means of the components and size of the core, such that light of different colors can be emitted. These narrow-half-peak-width light emission devices of different colors can be used to produce a display device with a high color gamut.

The invention belongs to the technical field of degradable mulching films, and relates to a biodegradable mulching film as well as a preparation method and application thereof, and the biodegradable mulching film is prepared from oxidized starch, hydroxymethyl cellulose, trehalose, polyvinyl alcohol and a plasticizer. According to the invention, natural and synthetic biological materials are compounded, so that the water resistance, thermal stability, tensile property and the like of the mulching film are improved; starch and cellulose are used as main materials, so that resource utilization of agricultural wastes is realized, and the preparation cost is reduced; after degradation, nutrient substances necessary for life activity are provided for soil microorganisms to promote reproduction, and the soil structure is improved; environmental pollution caused by the plastic mulching film is reduced, and agricultural sustainable development is facilitated; the preparation operation is simple, the whole process is normal temperature and normal pressure, liquid is converted into a solid film at normal temperature, and the safety is high.

The invention relates to a novel high-voltage safe explosion-proof capacitor shell and a preparation method thereof. The novel high-voltage safe explosion-proof capacitor shell is characterized by comprising an aluminum base layer and a film layer, a cavity for accommodating a capacitor core bag is arranged in the shell, and an opening is formed in one end of the cavity; the surface of the outer side of the aluminum base layer is covered with a film layer; and the film layer and the surface of the aluminum base layer are combined into a whole to form a shell for packaging the capacitor. The molten liquid PET coating is hot-pressed on the surface of the aluminum base layer to form the film layer to the film-coated shell, so that the problem of poor explosion-proof performance caused by an explosion-proof structure arranged in a traditional solid film-coated aluminum shell is solved. In addition, the shell can be applied to a high-voltage aluminum electrolytic capacitor larger than 400 V, and the problem that a surface film layer of the shell is prone to falling off or being damaged when a traditional solid film pasting or film sleeving aluminum shell is applied to the high-voltage capacitor is solved. The aluminum electrolytic capacitor packaged by the shell is suitable for the fields of AI servers, new energy automobiles, photovoltaic energy storage, communication equipment, artificial intelligence and the like, and has wide application requirements.