96 results about "Molecular film" patented technology

The invention discloses a molecular film type automotive nitrogen and oxygen separation device which comprises a turbocharger, a nitrogen and oxygen separator, a gas inlet valve, a gas outlet valve, a negative pressure pump and an electric control throttling valve. The turbocharger is driven by a turbine in an automobile turbocharger, so that the air is compressed to be conveyed to two paths of the nitrogen and oxygen separation device, the nitrogen and oxygen separation device can separate oxygen from the air, the air with high oxygen content is output, and the air is supplied to an engine for use through the gas outlet valve. The two paths of the nitrogen and oxygen separation device work alternately, when the temperature of the two paths of the nitrogen and oxygen separation device is too high to influence oxygen production efficiency, a main air inlet pipeline is opened to provide air normally by controlling the opening degree of the electric control throttling valve, and thus the phenomena of gas circuit plugging and engine stalling are avoided. According to the automotive nitrogen and oxygen separation device, the two branch paths work alternately, high concentration oxygen can be supplied to the engine continuously so that fuel can burn and act, and the burning utilization rate of the fuel is improved.

The present application relates to the technical field of lead-acid battery electrode, aiming at the problem of thick lead paste on the existing lead-acid battery plate, large resistance during charging and poor rate discharge performance of the battery, a preparation method of lead-acid battery membrane electrode is disclosed, comprising the following steps: adding a binder to the prepared lead paste, rolling the lead paste containing the binder on the lead skin to form a lead paste film layer, immersing the lead skin and the attached lead paste film layer in a sulfuric acid solution, and solidifying and drying after taking out; the binder is polytetrafluoroethylene emulsion or a binder containing polytetrafluoroethylene emulsion. Unlike the high molecular film attached to the surface of the lead-acid battery plate in the prior art, the present application obtains a thin film electrode with thin thickness, uniform active material dispersion, large active material and current collector contact area and good conductivity, and has the advantages of large rate charge and discharge cycle.

The invention discloses a multi-layer polymeric membrane functional current collector and a preparation method thereof, a pole piece and a battery, and the preparation process comprises the following steps: S1, blending and granulating ultra-high molecular weight polyethylene and high density polyethylene to prepare a composite layer raw material; s2, adding the composite layer raw material and the middle layer nylon raw material into a screw extruder, and carrying out co-extrusion casting to form a composite layer-middle layer-composite layer three-layer structure film; s3, carrying out plasma activation treatment on the obtained three-layer structure film; s4, forming nanoscale pits in the outer surface of the three-layer structure film by dipping the three-layer structure film in the treating fluid; and S5, preparing a metal layer on the outer side of the three-layer structure film to obtain the multi-layer polymer film functional current collector. Through material blending optimization, multi-layer structure design and surface functionalization treatment, the mechanical property and dimensional stability of the current collector base film and the binding force between the current collector base film and a metal coating are remarkably improved.

The invention discloses a wear-resistant and fibrillating-resistant spun silk fiber and a preparation process and application thereof, a layer of smooth and continuous amino acid-containing polymeric membrane protective layer with uniform thickness is formed on the surface of the spun silk fiber, the thickness of the polymeric membrane protective layer is 50-500nm, and the thickness of the polymeric membrane protective layer is 50-500nm. The polymeric membrane protective layer enables the spun silk fibers to be wear-resistant and anti-fibrillating, the spun silk fibers are not easy to damage after being treated by dyeing and after-finishing processes, and the prepared fabric can still keep good hand feeling and color after being washed for multiple times. Besides, the preparation process is simple, efficient and wide in applicability, and the prepared wear-resistant and fibrillating-resistant spun silk fiber can be used for spinning and weaving independently or together with other fibers and can be applied to the fields of clothes, underwear, home textiles, filling and the like.

The invention discloses an acidification blocking remover for an oil field and a preparation method of the acidification blocking remover. The acidification blocking remover comprises the following raw materials in parts by weight: 40-60 parts of hydrochloric acid, 10-20 parts of hydrofluoric acid, 5-10 parts of fluoboric acid, 1-3 parts of a modified stabilizer, 0.1-0.5 part of imidazoline and 20-30 parts of water. The modified stabilizer contains a quaternary ammonium salt structure which can be combined with negative charges on the clay to form a modified stabilizer coating on the surface of the clay, a polysiloxane molecular chain on the modified stabilizer can form a layer of hydrophobic film on the surface, and due to incompatibility between water molecules and hydrophobic groups, the hydrophobic film repels water groups, so that the clay can be degraded. Alkyl long chains on the outer side are combined with a hydrophobic membrane formed by polysiloxane molecules to form a second layer of hydrophobic membrane, then a bimolecular membrane is formed on the surface of the clay, the hydrophobic effect of the bimolecular membrane is far higher than that of a traditional monomolecular membrane, external moisture is effectively prevented from entering clay particles, and hydration expansion of the clay is inhibited.

The invention belongs to the technical field of polymeric membrane composite glass, and discloses a preparation method and application of polymeric membrane composite glass, the polymeric membrane composite glass comprises a first glass layer, a second glass layer and an EVA composite membrane located between the two glass layers, the EVA composite membrane contains nano metal oxide particles, and the nano metal oxide particles contain nano metal oxide particles. The nano metal oxide particles comprise cerium oxide, tungsten oxide, titanium oxide and yttrium oxide. The middle layer of the EVA composite film of the polymeric film composite glass additionally comprises nano metal oxide particles, tungsten oxide absorbs near-infrared heat radiation, titanium oxide reflects infrared light, cerium oxide and yttrium oxide can absorb ultraviolet light, and the heat insulation performance is excellent; according to the present invention, with the nano-metal oxide particles, the tungsten oxide, the tin oxide and other nano-oxide particles, the elastic modulus, the density and the viscosity of the EVA are increased, the sound wave conduction path is effectively blocked, the sound insulation and noise reduction performance is excellent, the nano-metal oxide particles can improve the interface bonding strength of the EVA composite film and the glass layer, and the safety performance is high.

The application relates to the technical field of heat preservation air pipe, in particular to a high-molecular film-coated rubber and plastic heat preservation air pipe, which comprises a plate body, the plate body is quadrangular, the plate body is made of flexible rubber material, one side of the plate body is fixedly provided with a waterproof layer made of composite fluorocarbon fiber material, one side of the plate body opposite to the waterproof layer is provided with a wear-resistant layer formed by spraying high-molecular material, one side of the wear-resistant layer of the plate body is provided with a first zipper part and a second zipper part matched with each other, and a zipper head is slidably arranged on the first zipper part. The waterproof layer made of composite fluorocarbon fiber material and the wear-resistant layer formed by spraying high-molecular material are arranged, the waterproof and wear resistance of the heat preservation air pipe are improved, the problem that the heat preservation air pipe is prone to damage during installation and transportation is avoided, and the production and installation cost is saved. Meanwhile, the heat preservation air pipe can also have excellent elasticity and tensile strength.

To provide a photoresist having excellent photon absorptivity and low line edge roughness.SOLUTION: A multilayer molecular film photoresist, comprising: a plurality of molecular beams extending in an upper direction of a substrate and arranged in a horizontal direction, wherein each of the molecular beams includes a plurality of inorganic monomolecules and organic monomolecules interposed between at least some of the inorganic monomolecules, the inorganic monomolecules and the organic monomolecules being connected to each other by bonding.SELECTED DRAWING: Figure 1

This invention discloses a molecular event visualization method and electronic device, proposing the concept of a molecular film. The method acquires the topological structure file of the drug molecule-target protein and the original trajectory file generated after molecular dynamics simulation of the drug molecule-target protein; based on the original trajectory file and topological structure file, it obtains the keyframe sequence of the molecular dynamics simulation of the drug molecule-target protein; it monitors the keyframe sequence to identify key event sequences of the drug molecule-target protein, and annotates the key event sequences to obtain annotated key event sequences; and it renders the annotated key event sequences to visualize and output the generated rendering data as molecular events, significantly improving the efficiency and depth of understanding molecular mechanisms of action in drug discovery and optimization.

The application discloses a preparation method and application of a polyacid tannic acid modified ultrafiltration membrane, and the preparation method comprises the following steps: preparing a casting solution containing a high molecular film forming material and a solvent; adding a polyoxometalate into the casting solution, uniformly mixing, and obtaining a polyacid modified casting solution; scraping and coating the polyacid modified casting solution to form a liquid membrane, pre-evaporating, immersing into a coagulation bath containing tannic acid to perform phase inversion and film forming, and obtaining the polyacid tannic acid modified ultrafiltration membrane. Through the synergistic effect of the polyacid blending regulation of the membrane pore structure and the in-situ coordination modification of the tannic acid phase separation, the simultaneous improvement of the permeation flux and the retention rate is realized, the pure water flux of the obtained ultrafiltration membrane reaches 221.37 LMH, the bovine serum albumin retention rate reaches 96.17%, and the preparation process is simple, efficient, and has a good large-scale application prospect.

The perovskite precursor liquid of one embodiment of the present application contains a solvent, a perovskite precursor that forms a perovskite compound that performs photoelectric conversion, a hole transport layer forming compound that forms a self-assembled monomolecular film having a hole selective permeability, and a chain hydrocarbon group having 5 or more carbon atoms that can be substituted and an ionic functional group.

The invention provides a polymeric membrane material, an optical membrane material and display equipment. The polymeric membrane material comprises a photopolymerization monomer, film-forming resin, blocked isocyanate and a photoinitiator before illumination, the film-forming resin comprises a compound containing active hydrogen, the photopolymerization monomer can be subjected to a polymerization reaction after illumination, and the blocked isocyanate and the compound containing active hydrogen can be subjected to a copolymerization reaction after heat treatment.

According to the preparation method for improving the metal / polymer bonding strength, a polar polymer film layer is pre-plated on the metal surface, the prepared polar polymer film layer and the metal surface containing hydroxyl generate intermolecular acting force, polymer entanglement occurs between the prepared polar polymer film layer and a polymer plate in subsequent thermal connection, and finally the metal / polymer interface acting force is enhanced; and the interface heat transfer efficiency is improved, the interface temperature is increased to 378 DEG C from 331 DEG C, and the metal / polymer interface connection area is increased to 224 mm < 2 > from 179 mm < 2 >. The metal / polymer interface bonding strength is improved by enhancing the metal / polymer interface acting force and improving the interface heat conduction efficiency, the film thickness control freedom degree is high, the film with any thickness can be obtained by controlling spin-coating parameters, and the method has the advantages of being easy to prepare, high in processing efficiency, low in economic cost and wide in application range.

A preparation process for preparing a low-resistance polymer film by using plastic sintered plate waste, relating to the technical field of polymer film preparation. The electrical conductivity of a residual material generated during processing of plastic sintered plates is altered by means of methods such as cleaning, crushing, grinding and melt blending, thereby enhancing the efficient utilization of waste materials; this allows for the production of low-resistance polymer films from the residual material generated from the heads and tails of the plastic sintered plates. A three‑stage stretching operation is performed on a semi-finished film blank, and the stretched polymer film exhibits improved mechanical properties, electrical properties, and thermal stability. By optimizing the stretching process, waste of raw materials and energy consumption during processing can be reduced, thereby reducing production costs. The stretching stage operation can reduce internal defects and stress concentration of the films, thereby improving the overall quality and consistency of finished products.

The application discloses a method for improving the moisture and heat resistance reliability of a bump connection structure, which comprises the following steps: (1) performing hydroxylation treatment on the bump connection structure for semiconductor device connection; (2) performing treatment on the bump connection structure with an organic compound to form a self-assembled molecular film; (3) performing dehydration treatment on the bump connection structure; and (4) performing etching on the self-assembled molecular film by using a reactive ion etching technology. Finally, the self-assembled molecular film with regular orientation and close arrangement is formed on the surface of the bump connection structure, especially at the undercut structure. The preparation method is simple, the self-assembled molecular film formed has high stability and corrosion resistance, and the reliability and stability of the bump in a moisture and heat environment can be effectively improved.

The utility model relates to the technical field of polymeric membrane air permeability detection, in particular to a polymeric membrane air permeability detection device which comprises a molecular membrane air permeability detector, a display screen and an operation panel, a display screen for data display and an operation panel for operation are mounted on the front side of the molecular film air permeability detector; a detection contact is further installed in the molecular film air permeability detector, a limiting frame fixedly connected with the molecular film air permeability detector is arranged at the bottom of the detection contact, and a clamp is arranged in the limiting frame; when the device is used, the groove is formed in the top of the inner frame, and the extrusion frame is matched with the groove of the inner frame to fix the molecular film, so that the friction with the molecular film can be increased, the movement of the molecular film can be effectively avoided, and the accuracy of subsequent detection data is ensured; meanwhile, the limiting frame and the extrusion frame are matched to ensure stable matching of the top cover and the bottom frame.

A multilayer molecular film photoresist is provided. The multilayer molecular film photoresist comprises a plurality of molecular lines which extend upwards from the substrate and are transversely arranged. Each molecular line comprises linearly linked monomers represented by the following Chemical Formula 1: [In Chemical Formula 1, one of * is a bond linked to a functional group in the lower monomer, and the other is a bond linked to a functional group in the upper monomer; oM is an organic monomer; mM is a primary inorganic monomer comprising a metal atom; m is 1-2, n is 1-2, and l is 1-1000. A side inorganic monomer including a metal atom is located between the molecular lines, and is bonded to a side surface of the organic monomer (OM) in one of the molecular lines. A cross-linking functional group is bonded to the side of the organic monomer (OM) in the other of the molecular lines.

The invention belongs to the technical field of molecular electronics, and particularly relates to a method for constructing a fixed-area molecular tunnel junction and an electrical property testing method.The method comprises the steps that a circular array mask is prepared, a gold target is deposited on the surface of a glass sheet, and a circular gold array is obtained; the gold-glass transparent array electrode is soaked in a molecular solution, when molecule self-assembly is completed, the surface is washed and dried, and the gold-glass transparent array electrode with the surface containing a self-assembly monomolecular film is obtained; preparing a gallium-indium alloy electrode; the gold-glass transparent array electrode is placed on an objective table, the tip of the gallium-indium alloy electrode is in contact with the circular gold array, the other end of the gallium-indium alloy electrode is led out to be in contact with the metal probe electrode, a current test loop is formed, and a fixed-area molecular tunnel junction is formed; compared with a traditional metal electrode, the gold-glass transparent array electrode has the advantage that adverse factors such as personal errors of molecular junction electrical property test results are effectively reduced.

The application belongs to the technical field of functional polymer membrane materials, and particularly relates to a preparation method of a flexible ion exchange membrane for water purification and desalination, a product thereof and application, comprising melt blending, online compounding and calendering of cation exchange resin powder, a flexible binder containing maleic anhydride grafted polypropylene and thermoplastic polyurethane, and a reinforcing mesh cloth to form a heterogeneous support base film with a mesh reinforcing structure; preparing an anion exchange layer coating liquid containing perfluorosulfonic acid resin and a cation exchange layer coating liquid; respectively casting and coating the anion exchange layer coating liquid and the cation exchange layer coating liquid on two surfaces of the heterogeneous support base film, and after drying and heat treatment, forming a homogeneous functional surface layer which is tightly combined with the base film. The application introduces continuous and dense homogeneous conductive layers on the two sides of the anion and the cation respectively while maintaining the mechanical support and dimensional stability of the heterogeneous membrane, shortens the ion migration path, reduces the membrane surface resistance and improves the interface bonding strength.

The invention belongs to the technical field of polymeric membrane preparation, and discloses a multi-layer co-extrusion preparation method of a high-barrier polymeric membrane, and the high-barrier polymeric membrane comprises a heat sealing layer, a bonding layer, a barrier layer, a bonding layer and an outer layer which are sequentially distributed from inside to outside; the multi-layer structure of the film is reasonably designed, the ethylene-acrylic acid copolymer is selected as the raw material of the bonding layer, the ethylene-acrylic acid copolymer has good compatibility with the polyethylene material of the heat sealing layer, the ethylene-vinyl alcohol copolymer of the blocking layer and the high-density polyethylene of the outer layer, the bonding force between the film layers can be effectively improved, and the bonding force between the film layers is improved. The layering and stripping phenomena of the finished film are avoided, and the stability of the barrier property is guaranteed.

The invention belongs to the field of metal molds and surface treatment, and relates to a manufacturing process of a copper-clad steel and iron hot-pressing texture template, which comprises the following steps: preparing a steel substrate, compounding a copper layer on the working surface of the steel substrate, and then carrying out flattening processing; carrying out three-dimensional texture modeling and path planning on the leveled surface of the copper layer, engraving a micro texture by using laser, and then carrying out micro shot peening strengthening on the texture surface; the template is subjected to heat treatment including steel matrix quenching and tempering treatment and gradient stress relief annealing; and depositing a vapor-regulating deposition coating and a super-hydrophobic molecular film on the surface of the template with the textures in sequence. By adopting the composite structure of the steel substrate and the copper surface layer, the high strength and high toughness of the core part and the high thermal conductivity of the surface are considered, and the performance contradiction of a single material is solved; the fineness of micron-sized textures is ensured through laser engraving, and the abrasion resistance of the textures is greatly improved from the two dimensions of mechanical strength and surface hardness through micro shot peening strengthening and a PVD superhard coating.

The utility model relates to the technical field of natural gas treatment, in particular to nitrogen removal and purification equipment for heavy components of natural gas, which comprises a nitrogen removal kettle, a feed pipe is communicated with the top end of the nitrogen removal kettle, a discharge pipe is communicated with the bottom end of the nitrogen removal kettle, a limit ring is arranged in the middle of the inside of the nitrogen removal kettle, and the discharge pipe is communicated with the top end of the nitrogen removal kettle. A separation assembly is arranged in the limiting ring and comprises a limiting groove formed in the center of the limiting ring. According to the device, the mounting frame can be quickly fixed, the device is convenient to use, the polymeric membrane on the mounting frame can perform denitrification treatment on natural gas entering the denitrification kettle, the denitrification difficulty can be reduced, the denitrification efficiency can be improved, meanwhile, a user can conveniently take out the polymeric membrane on the mounting frame for replacement or cleaning, and the practicability is high. The selective passing ability of the polymeric membrane can be guaranteed, nitrogen separation is facilitated, the polymeric membrane can be fixed through cooperation of the limiting blocks and the limiting plates, the stability of the polymeric membrane can be guaranteed, and nitrogen separation is facilitated.

The utility model relates to industrial conveying technical field, a kind of multiple-speed chain conveying line for macromolecular film production, including multiple-speed chain assembly line;The power shaft outside power equipment of multiple-speed chain assembly line is fixedly connected with driving pulley, driving pulley outside is provided with belt, the other side of belt is provided with driven pulley, and the inside fixed connection of driven pulley has first pivot;The outside of multiple-speed chain of multiple-speed chain assembly line is provided with guide mechanism, guide mechanism is fixedly connected with multiple-speed chain assembly line, and the bottom of guide mechanism is all provided with collection mechanism;The utility model is provided with protruding plate and friction plate inside guide frame, protruding plate is used to lift runner, and friction plate is used to ensure that runner rotates smoothly, when encountering impurity drop between runner, it can drop to the inside of two sides of discharging groove under the impetus of runner, then enter the inside of collection frame, can collect the impurity that drops, avoid its influence multiple-speed chain wheel normal rotation, ensure its normal use.

According to the high-flexibility ceramic coating and the preparation method thereof, after the components and the component proportion of the ceramic coating are optimized, an organic polymer film-forming agent, polyacrylate substances and silane-filler particles are added, cross-linked networks formed by the organic polymer film-forming agent, the polyacrylate substances and the silane-filler particles penetrate through one another, and organic polymers can serve as a medium; the coupling reaction between the coating and a base material is enhanced, the adhesive force and the film-forming property are improved, meanwhile, the coating can be endowed with excellent flexibility through the synergistic effect of a flexible long chain of organic polymer and flexible polyacrylate, a coupling agent containing a long carbon chain in the silane coupling agent is enriched outside the coating to form a hydrophobic layer, the coating is endowed with hydrophobicity, and therefore the coating has the anti-corrosion function. The antibacterial agent is introduced, so that the antibacterial resistance of the coating is improved; on the whole, the high-flexibility ceramic coating disclosed by the invention has the advantages of high hardness, high weather resistance and the like of a ceramic coating, meanwhile, the flexibility and the adhesive force are remarkably improved, the application range of the high-flexibility ceramic coating is expanded, and the high-flexibility ceramic coating has functionality and environmental friendliness and has higher application value.

The application belongs to the technical field of membrane preparation and application, and discloses a method for preparing a benzoxazole-containing polyimide carbon molecular membrane for ethylene / ethane separation. The method introduces a novel diamine monomer containing a benzoxazole structure, and polymerizes to obtain a polyimide polymer precursor containing a benzoxazole structure, thereby avoiding the limited conversion rate of thermal rearrangement to generate a benzoxazole structure, and the fact that the thermal rearrangement process causes the molecular chain to break, and further carbonization treatment causes the polymer structure to collapse and the molecular chain to be densely packed. The benzoxazole-containing polyimide carbon molecular sieve membrane has good permeability due to the ordered arrangement of the oxazole ring and the highly twisted rigid structure in the polymer main chain, and in addition, the good planar orientation and intramolecular Π-Π stacking of the polymer are conducive to the selectivity of ethylene / ethane.

The invention relates to a brexpiprazole oral soluble film and a preparation method thereof, the film agent does not use a thickening agent, and comprises 2%-10% of brexpiprazole, 60%-90% of a polymer film-forming material and 5%-30% of a plasticizer; the polymer film-forming material is a composition of hydroxypropyl methylcellulose and hydroxy propyl cellulose. The prepared brexpiprazole oral soluble film is flat in appearance, free of curl, uniform and smooth, free of visible particles, capable of being disintegrated rapidly and good in tensile strength and stability.

The invention discloses a heat-resistant polymer film, which comprises a soluble liquid crystal polymer, which accounts for 15-75wt% of the weight of the film; an insoluble liquid crystal polymer which accounts for 15-75 wt% of the weight of the film; and a polyimide consisting of a dianhydride and a diamine, the polyimide having a glass transition temperature (Tg) of greater than 250 DEG C, the film having a hygroscopicity of less than 0.5%, a dielectric loss (Df) of less than 0.005 at a frequency of 10 GHz and a humidity of 65% RH, and a dielectric loss (Df) of less than 0.05 at a temperature of 50 DEG C. The linear thermal expansion coefficient (CTE) at 50-200 DEG C is less than 20 ppm / DEG C, the storage modulus (E ') at 310 DEG C is greater than 0.2 Gpa, and the glass transition temperature (Tg) is greater than 220 DEG C.

The application relates to the technical field of polymer films, in particular to an anti-UV high-barrier composite film and a preparation method thereof. The anti-UV high-barrier composite film comprises a polymer film and an anti-UV high-barrier coating liquid coated on the polymer film, the thickness of the polymer film is 50-80 mu m; the anti-UV high-barrier coating liquid comprises the following raw materials in mass fractions: 50-55 parts of polyvinyl alcohol, 1015 parts of ethanol, 1-3 parts of a reaction precursor, 90-100 parts of deionized water, 3-5 parts of rutile titanium dioxide additives, 1-3 parts of dispersible graphene, 0.5-0.8 parts of urea and 0.5-1 part of a coupling agent. The anti-UV high-barrier composite film has excellent oxygen resistance, water resistance and anti-UV performance, and can be widely applied to fields requiring oxygen, moisture and ultraviolet blocking, such as food packaging, photoelectric products and the like.

The invention relates to a high-precision silver electrode micron-sized patterning method, which mainly comprises the following steps of: preparing a hydrophobic molecular film on the surface of a pretreated substrate by a molecular vapor deposition method, patterning the molecular film by ultraviolet ozone photoetching, and precisely depositing a silver electrode in a pattern area by utilizing a silver mirror reaction. Therefore, the silver electrode with simplified and environment-friendly process, low equipment cost, high processing efficiency, excellent precision and strong material adaptability is prepared.

The present application relates to a liquid crystal polymer film and a laminate comprising the same. The liquid crystal polymer film has opposite first and second surfaces, and the first surface has a kurtosis (Rku) of 3.0 to 60.0. The present application also provides a laminate comprising a first metal foil and the above-mentioned liquid crystal polymer film, wherein the first metal foil is disposed on the first surface of the liquid crystal polymer film. By controlling the Rku of the liquid crystal polymer film, the present application not only improves the peeling strength between the liquid crystal polymer film and the metal foil, but also ensures that the laminate comprising the same retains the advantage of low signal loss.