75 results about "Oxygen barrier" patented technology

This invention discloses a flame-retardant silicone rubber for cables and its preparation method, belonging to the field of cable material technology. By copolymerizing methyl vinyl silicone rubber with flame-retardant modified spiky hollow microspheres, the flame-retardant modified spiky hollow microspheres can be fixed in the silicone rubber network. The flame-retardant modified spiky hollow microspheres themselves are inorganic high-temperature resistant ceramic materials. The hollow structure can form a physical heat insulation and oxygen barrier layer, blocking heat transfer and oxygen penetration, and delaying the thermal decomposition of the matrix. The grafted phosphorus-based flame-retardant groups and the nitrogen element of 4-aminobenzoic acid form a phosphorus-nitrogen synergistic chemical flame retardant. During combustion, a dense carbon layer is quickly generated, which inhibits flame spread, reduces heat release rate, and has excellent smoke suppression and toxicity reduction effects, meeting the stringent requirements for cable fire safety.

This invention belongs to the field of cable technology, specifically a thin-walled oxygen-barrier high-temperature resistant cable, comprising a conductor core and a thin-walled outer sheath. The conductor core has a high-temperature resistant insulation layer made of polyetheretherketone (PEEK) composite material on its outer side. Between the high-temperature resistant insulation layer and the thin-walled outer sheath, from the inside out, are sequentially arranged a ceramicized oxygen barrier layer and a flame-retardant reinforcement layer. The ceramicized oxygen barrier layer is a nano-modified ceramicized silicone rubber layer with a thickness of 0.05–0.15 mm, including an outer layer doped with silicon carbide whiskers and an inner layer doped with zinc borate. This invention prepares an ultra-thin ceramicized layer through gradient doping, resolving the contradiction between thin-walled design and oxygen barrier properties, and effectively improving the interfacial peel strength. This reduces the cable's outer diameter and bending radius, making the cable lightweight and suitable for high-dynamic applications.

This invention discloses an amino compound containing a carbazole derivative and its synthesis method, as well as a perovskite solar cell and its preparation method, belonging to the field of solar cell technology. The general chemical formula of the amino compound of this invention is as follows: Wherein: R1 is a straight-chain alkyl group, with 3 to 4 carbon atoms; R2 is a straight-chain alkyl group, with 3 to 4 carbon atoms. Based on the introduction of long-chain alkyl groups and carbazole groups, both water and oxygen barrier properties and electron transport capabilities can be improved simultaneously, thereby enhancing the stability and photoelectric conversion efficiency of perovskite solar cells and solving the problem of poor stability in existing perovskite systems.

The utility model relates to oxygen barrier film production technical field, concretely is a kind of winding device for agricultural oxygen barrier film production, including fixed plate, the top end equidistance arrangement fixed connection of fixed plate has material conveying roller, guide roller, fixed frame and winding frame, the both ends of material conveying roller are respectively fixedly connected with moving block, the top end fixed connection of moving block has spring.The utility model, by setting cleaning component, air pump runs and generates suction, suction pipe is transported to the suction in connecting pipe with the running of air pump, dust suction port in connecting pipe one end connecting plate under the action of suction force dust on film is extracted, extracted dust is transported to dust collecting box in connecting pipe and is stored, cleaning brush fixed in the both sides of connecting plate is cleaned again to film, can carry out comprehensive cleaning to dust and particle on film, improve the oxygen barrier property of film and the convenience of subsequent work.

This invention discloses a functional coating for an ultra-tough, high-barrier integrated PI substrate for flexible OLEDs and its coating process. The coating includes a PI substrate layer, with the functional coating disposed on the upper surface of the PI substrate layer. The functional coating is an organic-inorganic hybrid gradient structure layer. This layer is formed by curing the same composition, with the content of inorganic nano-components increasing in a gradient and the content of organic polymer components decreasing in a gradient. The functional coating simultaneously provides water and oxygen barrier protection and stress buffering to the PI substrate layer. The beneficial effects of this invention are: by employing a single-layer gradient structure, the physical interface between traditional multilayer structures is eliminated, fundamentally avoiding interlayer delamination during bending; the bottom flexible region has a matching modulus, buffering bending stress; the top high-inorganic-content region forms a dense barrier layer, achieving high water and oxygen barrier protection; through molecular chain interpenetration or chemical bonding, the coating and substrate form an integrated structure, significantly improving bending lifespan.

This invention relates to the field of optoelectronic packaging, specifically to a flexible packaging film based on two-dimensional materials, its preparation method, and its applications. The packaging film structure comprises a first protective layer, a two-dimensional material layer, a transfer support layer, a heat-resistant support layer, an adhesion layer, and a second protective layer, stacked sequentially. First, a two-dimensional material layer is grown on a metal foil substrate. Then, a transfer support layer is fabricated on the surface of the two-dimensional material layer. After removing the metal foil substrate, the two-dimensional material layer / transfer support layer is transferred to the surface of the first protective layer. Finally, a heat-resistant support layer, an adhesion layer, and a second protective layer are fabricated on the surface of the transfer support layer. A molding method is used to remove interlayer gases and increase interlayer interactions. This invention maintains the integrity of the two-dimensional material layer structure, requiring only 1-3 layers of two-dimensional material to achieve high water vapor and oxygen barrier properties in the packaging film. It also possesses good flexibility and ease of use, allowing for simple application to encapsulate devices and meeting the requirements for device bending and winding.

The present application belongs to the technical field of thermal protection coating of aero-engine and gas turbine, and relates to an environmental barrier coating for resisting high-temperature water-oxygen corrosion of SiC-based ceramic or composite material and a preparation method thereof. With SiC or SiC-based composite material as a substrate, MoSi2 powder is first sprayed on the surface of the substrate by atmospheric plasma spraying, so that the Si element in MoSi2 is selectively volatilized to form a composite coating mainly composed of MoSi2 and Mo5Si3; then HfO2 powder is sprayed on the surface of the composite coating by atmospheric plasma spraying to form an HfO2 layer; and then the substrate after spraying the HfO2 layer is placed in an oxygen-containing gas atmosphere, heated to 1200-1500 DEG C for high-temperature oxygen-containing heat treatment to obtain a coating structure with three-layer structure of sacrificial layer, oxygen barrier layer and water barrier layer. The environmental barrier coating prepared by the present application has higher stability in high-temperature water-oxygen environment and higher comprehensive performance.

This utility model discloses a silicone sealing device for circuit boards of new energy vehicles, including a box body, a conduit, a cover, and a sealing structure. In this utility model, after the sealing ring is placed in the placement groove, the cover and box body are closed, pressing the sealing ring into the placement groove and pressure groove. At this time, the pressure head is inserted into the recess, which is U-shaped. After the pressure head is inserted, a self-tightening seal is achieved. The higher the pressure, the better the sealing effect. Simultaneously, the pressure block pushes the sealing ring downwards, causing it to fill the pressure groove and placement groove under force, resulting in a tighter seal. The outer side of the sealing ring is coated with a barrier layer, which effectively prevents water and oxygen corrosion, thus achieving water and oxygen barrier and improving the service life of the sealing ring. This sealing structure seals the connection between the box body and the cover, providing better sealing performance compared to existing sealing structures.

The application belongs to the technical field of high polymer materials, and relates to a barrier pipe shoulder modification material, a barrier pipe shoulder and a preparation method thereof.The barrier pipe shoulder modification material comprises a polyethylene matrix, organic modified montmorillonite, high-density polyethylene and a compatibilizer in specific proportions, and the polyethylene matrix is low-density polyethylene and / or linear low-density polyethylene;the polyethylene matrix is subjected to double barrier modification by selecting organic modified montmorillonite and high-density polyethylene for matching, and the compatibilizer is used as an auxiliary, so that the finally obtained pipe shoulder modification material has excellent barrier performance;after the pipe shoulder injection molding raw material is mixed to form a pipe shoulder, the obtained pipe shoulder has excellent oxygen barrier performance, water barrier performance and mechanical performance.

The application relates to the fields of material technology and instrument science, and discloses a preparation method of a graphene-based water-oxygen barrier film and the graphene-based water-oxygen barrier film. The graphene-based water-oxygen barrier film is prepared by combining an initiated chemical vapor deposition (iCVD) technology with a layer-by-layer self-assembly (LBL) technology, realizing high-quality transfer of graphene and in-situ construction of inorganic nanosheets, and having high barrier property, high light transmittance and good flexibility. By using the application, the problems of interface pollution and damage caused by traditional wet transfer in the preparation of the graphene-based barrier film, weak interlayer coupling and short penetration path in the subsequent multilayer stacking can be solved.

The application discloses a kind of CL-AuNPs@CD-MOF / Zein-PLA antibacterial films and preparation method and application thereof.The application is prepared gold nanoparticle (AuNPs) by green synthesis strategy, with CD-MOF as stabilizer, p-coumaric acid (p-CA) as natural reducing agent, by reducing tetrachloroauric acid (HAuCl4), CD-MOF is obtained by covalent crosslinking modification CL-AuNPs@CD-MOF with diphenyl carbonate (DPC), finally it is introduced into corn alcohol-soluble protein (Zein)-polylactic acid (PLA) composite film, utilize Zein excellent oxygen barrier property and PLA excellent mechanical property mutual coordination, construct the respiration microenvironment with suitable water vapor and oxygen permeability, so as to effectively inhibit the proliferation of microorganism on the surface of agaricus bisporus, and maintain its sensory quality.The composite film has significantly enhanced water stability, realizes the sustained release of gold nanoparticles, can effectively inhibit the microbial infection of agaricus bisporus after harvest.

This invention provides laminated films and packaging materials that are highly recyclable and have good oxygen barrier properties because they do not use anchor coat layers or adhesives. [Solution] The laminated film 10 according to this embodiment comprises an olefin resin film 20 and a transparent vapor-deposited layer 40 laminated in direct contact with the olefin resin film 20. The olefin resin film 20 comprises at least a core layer 30 and a surface layer 31 in that order, and the surface layer 31 located on the transparent vapor-deposited layer 40 side of the olefin resin film 20 contains PP resin and metal oxide 32.

This invention discloses a nano-oxygen barrier functional masterbatch for the outer surface of packaging bottles and its preparation method, belonging to the field of polymer packaging material technology. The method involves first homogenizing and ultrasonically dispersing nisin, glycerol, montmorillonite K10, and silver nanoparticles in an aqueous phase, then adding nanocellulose to obtain a hybrid oxygen barrier suspension. Next, polylactic acid, polypropylene carbonate, and triglycidyl isocyanate are melted and laterally injected into the suspension. The mixture is then subjected to twin-screw extrusion, vacuum devolatilization, and granulation to obtain the masterbatch. This masterbatch can form an oriented "brick-and-mortar" barrier structure in the matrix, enhancing interfacial bonding and the stability of the nano-silver, significantly improving the oxygen barrier, moisture barrier, peel strength, and long-lasting antibacterial properties of the packaging outer surface.

This invention discloses an oil-resistant, high-temperature, fast-dissolving, edible packaging film and its preparation method, belonging to the field of biodegradable polymer materials technology. By mass percentage, the raw materials for preparing this oil-resistant, high-temperature, fast-dissolving, edible packaging film include 0.5-5.0% hydroxypropyl methylcellulose, 0.1-1.5% sorbitol, 1.0-9.0% gelling agent, 0.05-1.0% coagulant, and the balance being water. The gelling agent comprises carrageenan, low-acyl gellan gum, and xanthan gum in a mass ratio of 1:0.1-0.3:0.01-0.05, with the mass ratio of hydroxypropyl methylcellulose to xanthan gum being 1:0.01-0.1. This invention rationally combines three gelling components with different properties, along with hydroxypropyl methylcellulose and sorbitol, to achieve good mechanical properties and oxygen barrier properties, while also achieving high-temperature fast dissolution and oil resistance.

To provide gas barrier laminates, packaging films, packaging containers, and packaging products that can improve oxygen barrier properties after abuse. [Solution] A gas barrier laminate comprising, in this order, a base layer containing a thermoplastic resin, a metal oxide layer, and a gas barrier coating layer, wherein the ratio of silicon atoms to carbon atoms (Si / C) measured by X-ray photoelectron spectroscopy on the surface of the gas barrier coating layer is greater than 0 and less than 0.50.

This invention discloses an online hydrogen purity monitoring system and method for electrolyzers, belonging to the field of electrolytic hydrogen production. It includes a condenser dryer, a hydrogen-oxygen detector, a deoxygenator, a drying tower, a connector, valve one, valve two, a filter, and a hydrogen purity detector. The system performs online real-time monitoring of hydrogen purity before and after purification in the electrolyzer system. It can simultaneously evaluate the hydrogen-oxygen barrier performance of the electrolyzer and the effectiveness of downstream hydrogen treatment. Furthermore, it miniaturizes and integrates the equipment for hydrogen purity detection into the electrolyzer system. This invention enables rapid and accurate evaluation of hydrogen purity parameters in the electrolyzer system.

This application provides a display panel and a display device. Specifically, the display panel includes: a substrate; a light-emitting functional layer disposed on the substrate; an isolation pillar disposed on the substrate, the isolation pillar being disposed on the same side of the substrate and the light-emitting functional layer; and a barrier structure disposed on the isolation pillar, the barrier structure being located between the isolation pillar and the light-emitting functional layer, configured to block the conductive path between the light-emitting functional layer and the isolation pillar. By employing the barrier structure, this application can isolate and block the isolation pillar and the light-emitting functional layer, avoiding the formation of a conductive path between the light-emitting functional layer and the isolation pillar, thereby preventing the accumulation of dissimilar ions such as silver ions in the light-emitting functional layer at the isolation pillar, ensuring the normal operation of the isolation pillar, and enabling the display panel to have better water and oxygen barrier capabilities, thus improving the quality of the display panel.

A multi-layered film includes (A) an oxygen barrier layer; (B) a moisture barrier layer disposed on and in direct contact with (A) the oxygen barrier layer; and (C) an adhesive layer disposed on and in direct contact with (B) the moisture barrier layer. (A) The oxygen barrier layer includes (a) modified polyethylene resin and (e) ethylene-vinyl alcohol copolymer. (B) The moisture barrier layer includes (b1) first poly(ethylene-co-1-octene) having a melting index of 20 g / 10 min to 40 g / 10 min at 190° C. and (b2) second poly(ethylene-co-1-octene) having a melting index of 1 g / 10 min to 10 g / 10 min at 190° C. (C) The adhesive layer includes poly(ethylene-co-methacrylate-co-glycidyl methacrylate) having a melting index of 1 g / 10 min to 10 g / 10 min at 190° C.

The purpose of the present invention is to provide a biodegradable resin composition which is excellent in terms of biodegradability, low-temperature moldability, and oxygen barrier properties under high humidity.　A biodegradable resin composition according to the present invention contains a polyvinyl alcohol-based resin (A), a modified starch (B), and a polyol plasticizer (C). The melting point of the composition is 180°C or less, and the temperature at which the storage elastic modulus of the composition is less than 1,000 MPa is not less 35°C but less than 180°C.

This invention provides an unarmored medium-voltage power cable, belonging to the field of cables, comprising: a cable core; an electrothermal layer covering the outer periphery of the cable core; a phase change heat dissipation layer covering the outer periphery of the electrothermal layer, the phase change heat dissipation layer being composed of a composite phase change material with a mass ratio of lauric acid:expanded graphite:graphene of 6:3:1, and a phase change temperature range of 40℃ to 50℃; an oxygen barrier layer covering the outer periphery of the phase change heat dissipation layer; a sheath layer covering the outer periphery of the oxygen barrier layer, the sheath layer being made of PVC flame-retardant material; and an electrothermal layer comprising: an electrothermal film covering the outer periphery of the filler layer. The purpose is to solve the problem that existing unarmored medium-voltage power cables cannot simultaneously meet the characteristics of high temperature resistance, high flame retardancy, and cold resistance. The technical effect achieved is to realize an unarmored medium-voltage power cable structure that can simultaneously meet the characteristics of high temperature resistance, high flame retardancy, and cold resistance.

The application discloses a titanium alloy powder with a FCC / TiO2 dual-phase composite oxygen barrier structure and a preparation method thereof, and relates to the technical field of alloy powder material preparation.The titanium alloy powder is prepared by converting the HCP phase outside raw material powder into the FCC phase through flow field impact treatment, then forming the FCC solid oxygen layer by solidifying oxygen in the FCC phase, and then generating the TiO2 dense film on the FCC solid oxygen layer, so that the dual-phase composite oxygen barrier structure composed of the FCC solid oxygen layer and the TiO2 dense film layer is obtained.The titanium alloy powder with the structure has an oxygen content of less than or equal to 0.29wt% after 15 times of continuous thermal cycles, a decrease in elongation of less than 5%, and a film peeling rate of less than or equal to 1%, realizes the technical paradigm shift from "passive oxygen control" to "active oxygen barrier + dynamic solid oxygen", and provides a reliable material foundation and process support for long-term cyclic utilization of titanium alloy powder in the high-end manufacturing field.

The present invention relates to the use of a paper substrate (11) in a high-quality, barrier-coated paper substrate (10) for providing good toughness, flexibility and oxygen barrier properties to a laminated packaging material and to packaging containers comprising the laminated packaging material. The barrier-coated paper substrate may also provide heat sealing capability to a laminated packaging material comprising it. The barrier-coated paper substrate (10; 23), is suitable in packaging of oxygen-sensitive food products.

This invention discloses a high-barrier PCTFE film comprising a trifluorochloroethylene-vinylidene chloride copolymer, wherein the trifluorochloroethylene-vinylidene chloride copolymer contains groups represented by formula (1), and the groups represented by formula (1) account for 0.1-0.3 wt% of the mass of the trifluorochloroethylene-vinylidene chloride copolymer. The introduction of vinylidene chloride structural units into the high-barrier PCTFE film of this invention improves the water vapor and oxygen barrier properties of PCTFE. Simultaneously, the introduction of ultraviolet-absorbing groups through chain transfer endows the PCTFE film with ultraviolet shielding function, expanding its application scenarios.

This invention discloses a pectin-nanolignin-citrus essential oil composite coating liquid, its preparation method, and its application. The preparation method includes the following steps: first, a nanolignin suspension is prepared; then, citrus essential oil is added and homogenized to obtain a nanolignin Pickering emulsion; finally, a pectin solution is added and homogenized again to obtain the pectin-nanolignin-citrus essential oil composite coating liquid. When used for food preservation, the pectin-nanolignin-citrus essential oil composite coating liquid of this invention forms a composite coating with excellent broad-spectrum antibacterial, antioxidant, UV-resistant, and long-term essential oil release properties. It also enhances physical properties such as mechanical properties, water vapor / oxygen barrier properties, and hydrophobicity, significantly extending the shelf life of climacteric fruits (kiwifruit) and non-climacteric fruits (strawberries), demonstrating great application potential in the field of fruit preservation.

The utility model discloses a kind of thin perovskite indoor photovoltaic modules, belong to photovoltaic module technical field.The thin perovskite indoor photovoltaic module of the utility model has the advantages of high-reliability light and thin backboard package, electrode wire leads out of no damage enough strength, double-layer package film of aluminium plastic film plus butyl rubber film, excellent water-oxygen barrier packaging effect is achieved through cheap film material, packaging thickness is significantly lower than glass packaging, module is lighter and thinner, through the round metal adhesive tape sticking wire, mechanical damage is minimum, does not affect battery efficiency, through the buffering effect of round metal adhesive tape, the mechanical damage and thermal damage of low-temperature soldering tin soldering wire can be reduced, through the round metal adhesive tape sticking cooperation double-layer package film sticking, the connection mechanical strength of round metal adhesive tape and perovskite sub-cell is strengthened, through Sn-Bi, Sn-Bi-In etc. low-temperature alloy soldering tin wire replaces traditional soldering tin wire, reduce soldering thermal damage to perovskite sub-cell The harm and efficiency loss brought about.

A monoaxially oriented, crosslinked multilayer film comprising an outer layer, a sealing layer and a core layr arranged there between. The core layer may comprise an oxygen barrier material, preferrab

The application provides a BOPP film suitable for cigarette packaging and a preparation process thereof, and relates to the technical field of BOPP films.The BOPP film suitable for cigarette packaging comprises a base film, an EVOH modified layer located on at least one surface of the base film, a transition layer located on the surface of the EVOH modified layer, and a silicon oxide coating layer located on the surface of the transition layer.The BOPP film provided by the application has excellent oxygen barrier property due to the EVOH modified layer, and the silicon oxide coating layer provides water vapor barrier property and protects the EVOH modified layer from humidity, so that the BOPP film has excellent oxygen and water barrier property and high light transmittance, and is suitable for cigarette packaging.

The application belongs to the technical field of power cables, and particularly relates to a HC type fire-resistant cable for ships and marine engineering and a processing method. The HC type fire-resistant cable comprises a cable core, an outer fire-resistant layer, an armored layer and an outer sheath layer from inside to outside. The outer fire-resistant layer comprises an oxygen barrier layer and a heat insulation layer from inside to outside. The heat insulation layer is a ceramicized polyolefin, and the composition comprises EVA, ceramicized filler, a first additive, an antioxidant and a lubricant. The ceramicized filler is a mixture of rounded corner crystalline silicon powder, sepiolite fiber, low-melting point glass powder and zinc borate. The first additive is a mixture of oligomeric siloxane, perhydropolysilazane and aramid powder. The HC type fire-resistant cable for ships and marine engineering provided by the application can only pass the HC fire-resistant 1100 DEG C+ impact test, and has excellent oil resistance and mechanical impact resistance.

This application relates to the field of polymer materials, specifically disclosing a low-temperature sealing, high-temperature-resistant, and water-blocking PE film and its preparation method. The low-temperature sealing, high-temperature-resistant, and water-blocking PE film comprises, from the inside out, an inner layer, a sub-inner layer, a middle layer, a sub-outer layer, and an outer layer. The inner layer comprises the following raw materials: LDPE, LLDPE, MLLDPE, PPA additives, slip agent, and opening agent; the sub-inner layer comprises the following raw materials: HDPE, barrier masterbatch, and PPA additives; the middle layer comprises the following raw materials: HDPE, barrier masterbatch, and PPA additives; the sub-outer layer comprises the following raw materials: HDPE, barrier masterbatch, and PPA additives; and the outer layer comprises the following raw materials: LLDPE, MLLDPE, HDPE, barrier masterbatch, PPA additives, and antioxidants. The PE film of this application is made of a single material, is easy to recycle, has good water and oxygen barrier properties, strong temperature resistance, low thermal shrinkage, low sealing temperature, and high heat-sealing strength.

The present invention provides a recyclable laminate film structure comprising a separation layer coating. The separation layer coating facilitates separation of a selected polymer film during the recycling processing by selecting the polymer of the coating composition to have particular Hansen Solubility Parameters, so that the laminate structure delaminates at the layer of the coating, leaving clean pieces of the selected polymer film. In certain embodiments, the separation layer coating is a barrier coating, such as an oxygen barrier coating.