128 results about "Solid film" patented technology

It is provided a personal care product comprising two subproducts: a first subproduct which is a freeze-dried solid composition comprising a thickening agent and an humectant; and a second subproduct which is a dried solid film comprising a thickening agent and an humectant; wherein the second subproduct is adapted to contain the first product, thereby acting as a first enveloping element covering the first product, wherein the first product and the second product are adapted to be separately manipulated as two independent products, and each provide a different or equal personal care function by being water-soluble. The personal care product is suitable for cosmetic, oral care, dermatological and pharmaceutical use. Said product can further comprise a second enveloping element comprising a synthetic polymeric film and on the inner part a thickening agent. Furthermore, the present invention is directed to a method to prepare said product.

The invention belongs to the field of preparation of hexagonal boron nitride materials, and discloses a preparation method of a multilayer hexagonal boron nitride single crystal film, which comprises the following steps: (1) preparing an asymmetric substrate, introducing a solid film of a boron source material on the substrate, and carrying out low-pressure nitridation reaction and subsequent high-temperature annealing to obtain a boron nitride single crystal film; therefore, a plurality of discrete and directionally distributed hexagonal boron nitride single-crystal crystal domain films are formed on the substrate; and (2) carrying out MOCVD epitaxial growth on the substrate on which the plurality of discrete and directionally distributed hexagonal boron nitride single-crystal domain films are formed, so as to continuously grow by taking the hexagonal boron nitride single-crystal domain films as nucleation points to obtain a continuous and multilayer hexagonal boron nitride single-crystal film. The whole process of the preparation method is improved, a two-step method is utilized, and the growth of the hexagonal boron nitride single crystal multilayer film is completed by adopting two boron sources.

The utility model relates to a developing solution recycling system which comprises a developing tank, a delivery pump, a collecting tank, a nano bubble removing device, a transfer tank, a rotary membrane filtering device, a backwashing collecting tank and a high-speed centrifugal device, the nano bubble removing device is used for removing hydrophobic particles in the developing solution, the developing solution is conveyed into the rotating membrane filtering device from the transfer tank, the rotating membrane filtering device is used for separating suspension liquid containing high-concentration, high-viscosity and high-solid-content materials in the developing solution to the backwashing collecting tank, and the filtered developing solution is discharged and recycled. And conveying the suspension to a high-speed centrifugal device to separate solid film residues from liquid. According to the developing solution recycling system, the developing solution can be recycled in a full-automatic operation mode, a filter element is not needed for filtering, manpower and dangerous solid waste treatment cost are saved, and therefore the problem that the yield of PCBs is gradually reduced along with pollution of the developing solution is solved.

The invention discloses a high-flux laser transfer printing method for a solid film, which comprises the following steps: A, preparing a transfer printing membrane which comprises a transparent substrate and a solid film, and attaching the solid film to the inner surface of the transparent substrate; b, first transfer printing laser acts on the transfer printing film, the first transfer printing laser sequentially penetrates through the outer surface and the inner surface of the transparent substrate and irradiates the solid film, and a melting area is formed; and C, after a preset time interval, second transfer printing laser acts on the transfer printing film, and the second transfer printing laser sequentially penetrates through the outer surface and the inner surface of the transparent substrate and irradiates the melting area of the solid film. According to the laser transfer printing method, the solid-state film is irradiated by the two transfer printing lasers with different peak power densities within the preset time interval, so that the solid-state film changes mainly based on the preset effect, and the high-flux transfer printing process is achieved.

The invention belongs to the technical field of hollow fiber membrane flux testing, and particularly relates to a hollow fiber membrane silk flux testing device which comprises a base, a testing frame, a purification rate detection mechanism and a pressure difference prevention type pulse spraying mechanism. The testing frame is arranged on the upper wall of the base, and the purification rate detection mechanism is arranged on the testing frame; the pressure difference prevention type pulse spraying mechanism is arranged on the purification rate detection mechanism, and the purification rate detection mechanism comprises a film fixing mechanism, a liquid pressing mechanism and a value measuring mechanism. The invention provides the hollow fiber membrane wire flux testing device capable of testing the continuous sewage filtering effect of the hollow fiber membrane under the condition of not changing the sewage suction pressure difference of the hollow fiber membrane.

The present invention provides a solid adhesive film for packaging a MINI LED display module, and a preparation method and application thereof, which relate to the field of LED packaging technology, wherein the solid adhesive film comprises a first adhesive film and a second adhesive film; wherein the first adhesive film comprises a first release film, a hardening coating and a black coating; the second adhesive film comprises a second release film and a diffusion coating; the first adhesive film and the second adhesive film are thermally compounded to obtain a solid adhesive film; the first release film and the second release film are respectively located on both sides of the solid adhesive film; the diffusion coating is used to improve the uniformity of the MINI LED display module, the hardening coating is used to improve the surface hardness and show a matte effect, and the black coating is used to present a color effect. The technical solution of the present invention forms a solid adhesive film by thermally compounding the first adhesive film and the second adhesive film, and the finished solid adhesive film can be packaged on a substrate with only one thermal pressing, which shortens the packaging process, reduces processing energy consumption, and improves production efficiency.

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 provides a composition with conditioning and fluffy effect and its application in shampoo. In terms of weight percentage, the composition comprises: 5% to 20% solid fat, the solid fat is one or more fatty acids and esters with a melting point greater than 50°C; 5% to 30% surfactant, the surfactant is selected from one or more of anionic surfactants, nonionic surfactants, amphoteric surfactants and cationic surfactants; 2% to 20% solid film conditioner, the solid film conditioner refers to an aqueous solution of the conditioner that can form a solid hard film after drying the water; the balance is deionized water. Shampoo containing the composition with conditioning and fluffy effect of the present invention has excellent conditioning and fluffy effect, with the fluffiness increased by 120%, the wet hair performance increased by more than 30%, and the dry hair performance increased by more than 45%.

According to the photosensitive compound, the resin composition, the cured film and the electronic device provided by the invention, the benzo-aza polycyclic group is introduced to the ester group of the o-nitrobenzyl formate, so that the photosensitive compound can be photolyzed under the action of optical radiation to generate the organic alkali; and the organic alkali molecules can promote the polyamic acid or polyamic acid ester to carry out imidization reaction. The alkali production efficiency of the photosensitive compound is high, the catalytic effect is good, the patterning effect of the resin composition can be improved, a pattern formed by the resin composition has good pattern resolution and film retention rate, and a cured film prepared from the resin composition can effectively improve the reliability of device packaging.

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.