103 results about "Oxygen penetration" patented technology

An organic light emitting display including an ultraviolet protecting layer and a method of manufacturing the same include a lower substrate; an ultraviolet hardening adhesive formed on the lower substrate; a driving unit and a light emitting unit deposited on the lower substrate and surrounded by the ultraviolet hardening adhesive; an encapsulation layer covering the driving unit and light emitting unit and preventing moisture and oxygen penetration from an outside; an upper substrate arranged on the encapsulation layer facing the lower substrate and fixed by the ultraviolet hardening adhesive; and an ultraviolet ray blocking film formed in a region to block the driving unit and the light emitting unit from being irradiated by UV rays radiated to harden the ultraviolet hardening adhesive. The ultraviolet ray blocking film is disposed in the encapsulation layer or on the upper substrate to protect the driving unit and light emitting unit from ultraviolet rays.

A fabrication process for a tunneling magnetoresistance (TMR) sensor is disclosed. In particular, a unique method of forming a barrier layer of the TMR sensor is utilized so that the TMR sensor exhibits good magnetic and TMR properties. In one particular example, the barrier layer is formed by depositing a metallic film in an argon gas in a DC magnetron sputtering module, depositing an oxygen-doped metallic film in mixed xenon and oxygen gases in an ion-beam sputtering module, and oxidizing these films in an oxygen gas in an oxygen treatment module. This three-step barrier layer formation process minimizes oxygen penetration into ferromagnetic (FM) sense and pinned layers of the TMR sensor and optimally controls oxygen doping into the barrier layer. As a result, the FM sense and pinned layers exhibit controlled magnetic properties, the barrier layer provides a low junction resistance-area product, and the TMR sensor exhibits a high TMR coefficient.

A process for reducing acetaldehyde concentration in beverages contained in polyester-based packaging, wherein oxygen permeation into the container is reduced or eliminated. The polyester contains an oxidation catalyst active for the oxidation of acetaldehyde to acetic acid. A composition comprising a polyester and said oxidation catalyst. A polyester-based container comprising said oxidation catalyst, and a bottled beverage having a polyester-based container comprising an oxidation catalyst active for the oxidation of acetaldehyde to acetic acid.

A CMOS structure is disclosed in which both type of FET devices have gate insulators containing high-k dielectrics, and gates containing metals. The threshold of the two type of devices are adjusted in separate manners. One type of device has its threshold set by exposing the high-k dielectric to oxygen. During the oxygen exposure the other type of device is covered by a stressing dielectric layer, which layer also prevents oxygen penetration to its high-k gate dielectric. The high performance of the CMOS structure is further enhanced by adjusting the effective workfunctions of the gates to near band-edge values both NFET and PFET devices.

A composition for a highly reliable thermal interface materials includes: (A) moisture-resistant polymer with a water permeability coefficient preferably less than 10⁻¹¹ cm³ (STP) cm/cm² S Pa, (B) gas barrier polymer having oxygen permeability coefficient preferably less than 10⁻¹⁴ cm³ (STP) cm/cm² S Pa, (C) antioxidant, (D) thermal conductive filler and (E) other additive or optional materials. The thermal interface materials placed in between the thermal generating and dissipating devices can effectively barrier water and oxygen penetration, preventing the thermal fillers from degradation and improving the reliability of the devices.

The invention discloses a multi-functional multi-layer composite film for preserving fruits and a preparation method thereof, which are used for preserving fruits such as grapes, winter jujube, lychee, longan and the like. The composite film comprises four functional layers, namely a basal layer, a release agent layer, an auxiliary layer and a protective layer, wherein the basal layer is a plastic film prepared by blowing inorganic filler modified resin; the sulfur dioxide release agent layer coated on the basal layer is made of an adhesive of a suspended sulfur dioxide release agent; the auxiliary layer on the release agent layer consists of organic acid and an adhesive; and the adhesive protective layer on the auxiliary layer is a mixture of ethylene vinyl-acetate copolymer (VAE) or/andnatural rubber. The fruit preserving package has adjustable oxygen penetration rate; sulfur dioxide bactericide gas generated by the composite film has good effect of killing botrvtis cinerea and other pathogenic bacteria, and the bactericide has the characteristics of adjustable concentration and period and low release concentration, and cannot remain on the fruits; and the composite film has good barrier effect on water vapor and prevents the fruits from being damaged due to water loss.

The invention discloses hydrophobic oil-resistant food packaging paper and a preparation method thereof, and belongs to the technical field of papermaking. The hydrophobic oil-resistant food packagingpaper is composed of food packaging base paper and a hydrophobic oil-resistant coating layer formed on the surface of the food packaging base paper; wherein the hydrophobic oil-resistant coating layer is formed by a surface sizing agent composed of chitosan, polylactic acid and fluorine-containing hydrophobic oil-resistant modified nanocellulose, the oil-proof grade of the food packaging paper islarger than or equal to 7, the oxygen permeability is 8.5-11 cm < 3 >/(m<2>*24 h), and the water vapor permeability is 137-142 g/(m<2> *24 h). The food packaging paper prepared by the invention can effectively block the permeation of water vapor and oxygen and prolong the shelf life of food, and the added chitosan and polylactic acid can also improve the physical properties and antibacterial properties of the paper. In addition, the adopted nano cellulose has the advantages of being biodegradable, wide in source, safe, environmentally friendly and the like.

The invention provides a method and packaging structure for detecting the water and oxygen penetration rate of a back plate. The method includes the following steps that a metal electrode pattern is formed in the back plate to be detected; a calcium film is formed on the back plate provided with the metal electrode pattern; the back plate provided with the metal electrode pattern and the calcium film is used as a partition plate to separate a drying chamber from a moist chamber; the change value of the electrical conductivity of the calcium film is measured through the metal electrode pattern, and the water and oxygen penetration rate of the back plate is determined according to the measured change value. According to the method and packaging structure for detecting the water and oxygen penetration rate of the back plate, the calcium film is arranged on the back plate to be detected, the whole back plate is used as the partition plate separating the drying chamber from the moist chamber, and the water and oxygen penetration rate is detected; compared with the mode that only back plate packaging materials are detected in the prior art, the method and packaging structure for detecting the water and oxygen penetration rate of the back plate have the advantages that the real environment of a device needing to be protected can be reflected more really, and detection accuracy of the water and oxygen penetration rate of the back plate is improved. Moreover, an electrode used for detecting the electrical conductivity is made on the back plate to be detected so that detection difficulty can be lowered.

The hollow cellulose fiber gas humidifying membrane is homogeneous compact structure prepared through direct dissolving cellulose with N-methyl morpholine monohydrate as solvent and spinning vian immersing phase converting process. The preparation process includes: dissolving cellulose with 80-93 % concentration MMNO.H2O at 80-110 deg.c and debubbling to obtain membrane forming liquid of 7-20 wt% cellulose concentration; spinning hollow membrane through immersing phase converting process; washing to eliminate residual solvent in the membrane; and drying naturally to obtain dry hollow membrane. The cellulose fiber gas humidifying membrane thus prepared has high crystallization degree, high mechanical strength, high organic solvent, acid and alkali resistance, high water penetrating capacity, and small oxygen and hydrogen osmosing coefficient, and is very suitable for use in gas humidifying system in fuel cell.

The invention discloses a high-safety lithium ion battery and a manufacturing method thereof. The manufacturing method comprises the following steps of manufacturing one or more single cells of a soft-package lithium ion battery, putting the one or more single cells of the soft-package lithium ion battery into a battery case, carrying out sealing, extracting air in the battery by a pump so that a vacuum state is obtained, filling the battery with inert gas so that positive pressure in the battery is kept, and carrying out sealing. The invention provides the high-safety lithium ion battery of which the positive pressure is kept by inert gas filling and the manufacturing method thereof so that safety hidden troubles such as combustion even blast caused by battery system destroy-caused external oxygen penetration into the battery are thoroughly avoided and battery safety is greatly improved.

Polymer compositions with reduce oxygen permeability are described. The polymer compositions may include one or more polyolefin polymers, and a nanoparticle filler. The nanoparticle filler represents about 2 wt. % to 5 wt. % of the weight of the polymer composition and reduce the oxygen permeability of the composition by about 20% or more. Also described are roofing systems that may include an insulation layer and a thermoplastic polyolefin layer made using the polymer compositions to protect the insulation layer from weather degradation.

The invention discloses a novel package system of organic electroluminescent device, comprising a baseboard composed of a substrate and an organic electroluminescent working layer, wherein the organic electroluminescent working layer comprises an anode layer, a cavity transmission layer, an electron transmission layer, and a metal electrode. The invention is characterized in that the substrate is arranged with a cover board at the side plated with the organic electroluminescent working layer, the cover board and the substrate seal the organic electroluminescent working layer via ultrasonic exposure adhesive, wherein the gas pressure in the ultrasonic exposure adhesive sealed area is lower than external pressure, to tightly and uniformly combine the cover board and the baseboard. The invention can effectively reduce steam and oxygen penetration factor which can reach 10-6g/m2/day at 65Deg. C and 97% humidity, while the device service life is improved to 10 thousand hours from prior 3000-5000h, to meet practical application.

The invention discloses a position B element Y doped perovskite ceramic oxygen penetration film material, which relates to the inorganic oxygen penetration film material. The invention is characterized in that: the perovskite BaFeO3-delta material is doped at the position B, and the molecular formula is BaFel-xYxO3-delta, wherein x is 0.05-0.25. The oxygen penetration film material prepared by the invention has good stability and high oxygen penetration quantity and is an oxygen penetration film material with excellent performance, which can be applied to the continuous oxygen supply of methane partial oxidation reaction and the industrial process of separation and purification of oxygen in other oxygen-containing gas.

A method for fabrication of a multilayered encapsulation thin film having optical functionality and a multilayered encapsulation thin film fabricated thereof includes a reactive or a non-reactive PVD process using a physical vapor deposition device containing multiple targets in a vacuum chamber is conducted or the above processes are alternately conducted such that the multilayered encapsulation thin film consisting of multiple layers with different densities and refractive indexes may be easily fabricated. In addition, the multilayered encapsulation thin film fabricated by the same has superior ability for inhibiting moisture and/or oxygen penetration sufficient to be used as an encapsulation material, controls a refractive index distribution for multiple layers in fabrication of a multilayered thin film so as to function as an anti-reflection film, and improves light output of a device.

The invention relates to a method for preparing a tubular support dense oxide film, which comprises the following steps of: (1) selecting a ceramic tubular material with good air permeability and mechanical performance as a support body; (2) preparing mixed ion conductor composite oxide sol formed by a sol-gel method according to demands, soaking the support body into the sol in a film plating way by a pulling method; and drying by an automatic pulling film plating machine and then controlling the sintering temperature procedure to prepare the tubular support dense oxide film. The oxide film has dense surface, high oxygen penetration rate and good mechanical performance. The method for leading oxygen to selectively penetrate an oxygen penetration film is a promising gas separating method; and the method has the main principle that the oxygen selectively penetrates \a mixed ion conductor material, wherein the oxygen enters reaction in an ion way, and the method can control the reaction speed, reduce the pollution to the environment and is an environmental protection type process. A tubular film reactor has wide application prospect because of having the advantages of adjustable scale, simple and convenient operation, and the like.

The invention relates to the field of display technology, and in particular to a flexible OLED display panel. The flexible OLED display panel in the invention includes a flexible substrate and an organic light emitting diode formed on the flexible substrate. The flexible substrate includes a first polymer layer, an inorganic barrier layer, a metal sheet layer, and a second polymer layer which arestacked in sequence. The second polymer layer has a thickness greater than the thickness of the first polymer layer. The first polymer layer and the second polymer layer are doped with a desiccant. The water and oxygen penetration can be effectively prevented, and the OLED service life is prolonged.

The invention discloses a microbial fuel battery with an air-breathable biological cathode. The microbial fuel battery with the air-breathable biological cathode comprises an anode chamber inoculated with anaerobic activated sludge and a cathode chamber inoculated with an aerobic biological cathode, which are partitioned by a cation exchange membrane, wherein an anode is arranged inside the anode chamber; a cathode is fixed on a reactor through an opening baffle plate to form the cathode chamber; aerobic microbes are adhered to the surface of the cathode to form the biological cathode; the other surface of the biological cathode is communicated with air so as to permeate oxygen into a cathode electrolyte to supply electron donors to the biological cathode; anodic microbes catabolize an organic matter to generate electrons; the electrons move to the biological cathode through an external circuit; and under the action of the microbes, oxygen reacts with the electrons and protons penetrating through the anode to generate water and electrical energy. Increase of operating cost by mechanical aeration can be avoided; and the microbes replace a noble metal catalyst for oxygen reduction, so that the construction cost of the microbial fuel battery is reduced and a relatively high electrical energy density is provided.

The invention discloses a fermentation reactor for dynamically culturing and preparing ordered bacteria cellulose. The fermentation reactor comprises a vessel body and a power device, wherein the side wall of the vessel body is made of an oxygen penetration material; the power device is used for driving a liquid in the vessel body to relatively rotate along the inner wall of the vessel body. The invention further provides a method for dynamically culturing and preparing the ordered bacteria cellulose, which comprises the following steps: preparing a culture medium; inoculating bacterium onto the culture medium; performing dynamic fermentation; fully filling a bacteria fermentation liquid in the vessel body in a sealing manner, controlling the rotation speed of the power device within a range of 100-500r/min, placing the fermentation reactor in a homothermal culture box at a temperature of 30 DEG C, culturing for 3-7 days, and obtaining cellulose gel; performing product purification. According to the invention, due to the adoption of the dynamic fermentation, the process is simple, and the prepared bacteria cellulose has a directionally arranged nano fiber structure, has higher porosity and transparency, and has the advantage that the controllability of the output and the structure of the product are strong during the fermentation.

This invetion relates to Pullulan membrane and its use for culture preservation. The said membrane is prepared by flow spreading process to form thickness 0.02-0.04mm, pull strength 27-32MPa, right tearing strength 31-38KN/m, light transmittance rate 95-98%, and oxygen penetration (2.7-1.6cm3/m2.bar.d). The method is carried out by: providing glycerin, trehalose as protecting agent and microbe between both of membranes, pressing tightly and sealing with plastic layers to meet conditions for culture preservation, e.g., dryness, oxygen depletion, low temperature, nutrient depletion and protecting agent addition. Those sheets can be formed into albums for preservation, research and easy reproduction by cutting a piece and putting into a culture dish. No expensive apparatus and large space for preservation are needed and it is easily posted.

The invention discloses a thin-film packaging structure of an OLED device. The thin-film packaging structure comprises the components of a bottom inorganic thin-film layer and a top inorganic thin-film layer on an OLED substrate; and one or more organic buffer layers between the bottom inorganic thin-film layer and the top inorganic thin-film layer, wherein the plurality of inorganic buffer layers are separated through the inorganic thin-films, wherein inorganic hydrophobic particles are doped in at least one organic buffer layer. According to the thin-film packaging structure of the OLED device, through doping the inorganic hydrophobic particles in the buffer layer, penetration paths of water and oxygen in the thin-film packaging structure is prolonged, or the penetration path are difficultly formed, thereby improving water and oxygen penetration and improving packaging effect. The invention further provides a preparation method of the thin-film packaging structure of the OLED device. The thin-film packaging structure of the OLED device and the preparation method thereof have advantages of simple operation, easily available raw material, and easy large-scale industrial production.