19 results about "Composite film" patented technology

The invention provides a high strength organic / inorganic nano composite film layer materials and method for preparation, wherein the composition comprises 10-13% of titanate, 7-17% of silicane coupling agent, 0-6% of silicate ester, 40-65% of alcohol solvent and 1-4% of water. The preparation of the composition consists of using inorganic acid as catalyst, co-hydrolyzing titanate, silicate and silane coupling agent in dimethyl carbinol, coating the obtained paint by rotary, dipping or spraying methods onto the surface of the appliances, finally solidifying 1-3 hours at 135- 150 deg. C.

The invention belongs to the field of inorganic/polymer optic nano composites and particularly relates to a transparent high-refractivity graphene quantum-dot/polymer nano composite film and a preparation method thereof. The composite film is formed by graphene quantum-dot and polymer through ultraviolet curing and thermocuring. Before curing, in each 1mL of polymer monomer, the content of graphene quantum-dot is 0.1-1g. The graphene quantum dots (GQDs) is used as inorganic nano phase, the polymer monomer is used as solvent, the GQDs is synthetized in the polymer monomer by the solvothermal method and then are directly cured to be film by filtering, spraying coating, adding trigger, and double treatment of ultraviolet curing and thermocuring. The transmissivity of the transparent high-refractivity graphene quantum-dot/polymer nano composite film prepared by the film materials ranges from 80% to 95%, refractivity ranges from 1.5 to 2.8, and the transparent high-refractivity graphene quantum-dot/polymer nano composite film can be applied to antireflection coating, optical waveguide materials, optical lenses and other photoelectric fields.

The invention provides a cathode for a metal and carbon nano tube or carbon fiber film emitting array and a manufacturing method thereof in the microelectronic technical field. The cathode structure comprises a substrate, a bottom electrode, a resistive layer, an emitter, a knee wall, an insulating layer, a grid electrode and a forming electrode, wherein the bottom electrode layer is firstly formed on the substrate; the resistive layer is arranged on the surface of the bottom electrode layer; a composite film of metal and carbon nano tube or carbon fiber is deposited on the resistive layer as the emitter; the bottom electrode has a patterned structure on a plane; the clearance position of the bottom electrode is provided with a knee wall structure; the insulating layer is arranged on the insulating layer, while a grid electrode structure is suspended on the insulating layer; the forming electrode is arranged on the upmost layer of the whole structure; and the structure layers are all subject to patterning treatment. The cathode for the metal and carbon nano tube or carbon fiber film emitting array and a manufacturing method thereof manufacture a pattern structure by micro machining method and film technology, can realize a field emitting cathode array with complicated structure, and can be integrated with other micro machining processes by the composite plating method. The device preparing device is simple and easy, and can reduce manufacturing cost.

The invention relates to a bistable composite film of polymer dispersed liquid crystals and a manufacturing method thereof. The composite film is composed of two pieces of flexible transparent conducting film and a layer of polymer dispersed liquid crystals, wherein, the two pieces of flexible transparent conducting film are etched with a coplanar conversion electrode; the layer of polymer dispersed liquid crystals is highly active polyurethane acrylic ester; the liquid crystals are nematic phase liquid crystal molecules with large birefringence. When imposing a coplanar horizontal electric field, the bistable composite film of the polymer dispersed liquid crystals is in closed and scattering state and still keeps the scattering state after the electric field is eliminated; when imposing a coplanar comb-shaped electrode short-circuit on an opposite electric field, the bistable composite film of the polymer dispersed liquid crystals is in open and transparent state and still keeps the transparent state after the electric field is eliminated. The bistable composite film of the polymer dispersed liquid crystals has the manufacturing method that: after being mixed, the highly active polymer and the nematic phase liquid crystals with the large birefringence are separated to form the structure that the polymer wraps crystal liquid droplets. The invention uses the simple design proposal and depends on changing the direction of the electric field to realize zero field stability of the polymer dispersed liquid crystals so as to further acquire an electronic-paper technology with better energy conservation; or the bistable composite film of polymer dispersed liquid crystals can be specially applied to the fields of building decoration and jewelry counters and so on as a dimming function film which is clipped in glass.

The invention relates to a method for preparing a perylene polyimide derivative film in the technical field of photoelectric materials. In the method, hydrazine hydrate is used for replacing trifluoroacetic acid, a positive electrode deposition method is adopted, and a dense and uniform film is prepared with a low voltage of 0.5-5V and a low current of 0.02-5mA within a relatively short deposition time. Moreover, composite films conforming to various absorption ranges are prepared through changing the structure and the matching of the perylene polyimide derivative.

The invention discloses a bioactive glass composite film as well as a preparation method and application thereof. The composite film is a thin flaky degradable composite material, and is prepared frombioactive glass powder by using hyaluronic acid and polymer lactic acid-polyglycolic acid as carriers through film forming. The preparation method concretely comprises the following steps of (1) polylactic acid-hydroxyacetic acid end position activation; (2) hyaluronic acid tail end amination synthesis; (3) hyaluronic acid-polylactic acid-hydroxyacetic acid copolymer carrier synthesis; (4) hyaluronic acid-polylactic acid-hydroxyacetic acid copolymer gel dispersion preparation; (5) hyaluronic acid-polylactic acid polymer-bioactive glass composite film preparation. The composite film slowly releases bioactive glass nanometer particles; good biocompatibility is achieved; the long-effect anti-inflammatory effects can be achieved; drug resistance cannot be generated; the periodontium growth ispromoted; the dentinal tubule is sealed; the goal of reducing dentine hypersensitivity after the periodontal surgery can be achieved.

The invention provides a copper oxide/carboxymethyl cellulose gel modified composite film, and a making method and a use thereof. The making method comprises the following steps: washing and drying a copper net; cutting the dried copper net, carrying out high temperature calcination on the cut copper net in a tubular furnace, naturally cooling the calcined copper net to room temperature, and taking out the naturally cooled copper net; impregnating the calcined copper net in a carboxymethylcellulose sodium solution for a period of time, taking out the impregnated copper net, and impregnating the copper net in a Fe<3+> solution; and taking out the copper net a period of time later, placing the impregnating copper net in an oven, drying the copper net at a certain temperature for a period of time, continuously repeating the above impregnating operation to make the copper oxide/carboxymethyl cellulose gel modified composite film, and preserving the copper oxide/carboxymethyl cellulose gel modified composite film in water. The CuO-CMC modified composite film is produced through the method for high temperature calcination of the copper net and coating of the surface with an organic layer. The making method has the advantages of simplicity in operation, obvious separation effect and high practical values.

The invention relates to a high-temperature-resistant, water-oxygen-resistant and low-infrared-emissivity composite film for a ceramic-based composite material and a preparation method. The high-temperature-resistant, water-oxygen-resistant and low-infrared-emissivity composite film for the ceramic-based composite material is of a single-layer complex-phase structure, and the surface of a target object is covered with the composite film when the composite film is used; and the thin film is a continuously formed high-temperature conductive composite thin film and comprises two main components, wherein a high-conductivity metal material is used as a low-infrared-emissivity component, and an environment barrier coating material for the ceramic-based composite material is used as a protection component. After process optimization, the emissivity of the composite film of 2-22 microns can be less than 0.1 after the composite film is used in a high-temperature air environment of 1000 DEG C for 2 h, the composite film has excellent performances of low emissivity, high temperature resistance, water and oxygen resistance and the like, and the preparation process is simple and the operation is easy.

The invention discloses a method for inhibiting generation of an ordered intermetallic compound in the phase change process of an Al-Ni nano multilayer film by adding a transition layer. According to the requirement of a use environment, materials such as Cu and Ti which can generate self-propagating reaction with Al or Ni are introduced to serve as the transition layer, so that the thickness of the transition layer is matched with the thickness of an initial film without the transition layer, and a final stable phase product of the film is not changed; a composite film with the period of Al/X/Ni/X and the adjustable total thickness is prepared by adopting coating processes such as magnetron sputtering; on the basis of inhibiting mutual diffusion of Al and Ni elements at room temperature and ensuring storage stability, formation of initial Al3Ni or Al3Ni2 and other ordered intermetallic compound phases in the phase change process is further inhibited; the inhibition effect of the initially precipitated ordered intermetallic compound relative to atomic diffusion is weakened; preferential or direct formation of a stable phase corresponding to a specific modulation period is promoted; and the method has important significance in improving energy output, even realizing controllable energy release and further promoting military and industrial application.

The invention provides a method for forming a multilayer composite film and a three-dimensional memory device. The method includes sequentially depositing a multilayer composite film on a three-dimensional memory chip, and obtaining a flat surface three-dimensional memory chip through subsequent annealing and CMP processes, wherein The stress coefficients of each layer of the film in the multilayer composite film are not completely the same. The existing single-layer film with a single stress coefficient is replaced by a multi-layer composite film with a combination of different stress coefficients, thereby solving the problem of increased defects, uneven thickness, and stress caused by the increase in the thickness of the single-layer single-stress coefficient cover film. There are many problems such as surface cracking caused by the increase.

The invention relates to a novel nylon composite film, which comprises a modified glass fiber nylon layer, a pure nylon layer, a polyethylene layer and a high-temperature-resistant layer, wherein themodified glass fiber nylon layer is arranged on the bottom layer, the pure nylon layer is arranged on the modified glass fiber nylon layer, the polyethylene layer is arranged on the pure nylon layer,the high-temperature-resistant layer is arranged on the polyethylene layer, and the modified glass fiber nylon layer, the pure nylon layer, the polyethylene layer and the high-temperature-resistant layer are integrally adhered by an adhesive. According to the present invention, the novel nylon composite film has simple structure; and by using the polyethylene layer, the high-temperature-resistantlayer and the modified glass fiber nylon layer, the novel nylon composite film can resist high temperature, and has wide application range.

The invention discloses an encapsulation method of a plurality of 5kg electrodes. The method uses a composite film to carry out encapsulation. Compared with the existing composite film, the composite encapsulation film can be applied to the automatic 5kg electrode encapsulation, and the product qualified rate is high.

The invention relates to a pulling type solar collection device of solar equipment. The solar collection device, arranged on the top of the solar equipment, includes a first solar panel and guide rails arranged at two ends of the first solar panel. A second solar panel is arranged below the first solar panel. Two ends of the second solar panel are each provided with a first slide block that matches one corresponding guide rail. A third solar panel is also arranged below the first solar panel. Two ends of the third solar panel are each provided with a second slide block that matches one corresponding guide rail. The first, second and third solar panels are based on a dye-sensitized solar cell. The dye-sensitized solar cell includes a photo anode, a counter electrode and an electrolyte, wherein the photo electrode and the counter electrode face each other and the liquid electrolyte is sandwiched between the photo electrode and the counter electrode. The photo electrode includes an FTO substrate, a TiO2 composite film is arranged on the surface of the FTO substrate, and the TiO2 composite film includes an SrTiO3/Zn2SnO4/TiO2 nano-sheet heterostructure and a TiO2 nano-particles.