467results about How to "High bond energy" patented technology

A method for forming a silicone polymer insulation film having a low relative dielectric constant, high thermal stability and high humidity-resistance on a semiconductor substrate is applied to a plasma CVD apparatus. The first step is introducing a silicon-containing hydrocarbon compound expressed by the general formula SialphaObetaCxHy (alpha, beta, x, and y are integers) to the reaction chamber of the plasma CVD apparatus. The silicon-containing hydrocarbon compound has at most two O-CnH2n+1 bonds and at least two hydrocarbon radicals bonded to the silicon. The residence time of the material gas is lengthened by, for example, reducing the total flow of the reaction gas, in such a way as to form a silicone polymer film having a micropore porous structure with a low relative dielectric constant.

Objects are to provide a semiconductor device for high power application in which a novel semiconductor material having high productivity is used and to provide a semiconductor device having a novel structure in which a novel semiconductor material is used. The present invention is a vertical transistor and a vertical diode each of which has a stacked body of an oxide semiconductor in which a first oxide semiconductor film having crystallinity and a second oxide semiconductor film having crystallinity are stacked. An impurity serving as an electron donor (donor) which is contained in the stacked body of an oxide semiconductor is removed in a step of crystal growth; therefore, the stacked body of an oxide semiconductor is highly purified and is an intrinsic semiconductor or a substantially intrinsic semiconductor whose carrier density is low. The stacked body of an oxide semiconductor has a wider band gap than a silicon semiconductor.

Provided is a semiconductor device for high power application including a novel semiconductor material with high productivity. Alternatively, provided is a semiconductor device having a novel structure in which the novel semiconductor material is used. Provided is a vertical transistor including a channel formation region formed using an oxide semiconductor which has a wider band gap than a silicon semiconductor and is an intrinsic semiconductor or a substantially intrinsic semiconductor with impurities that serve as electron donors (donors) in the oxide semiconductor removed. The thickness of the oxide semiconductor is greater than or equal to 1 micrometer, preferably greater than 3 micrometer, more preferably greater than or equal to 10 micrometer.

Provided is a semiconductor device for high power application including a novel semiconductor material with high productivity. Alternatively, provided is a semiconductor device having a novel structure in which the novel semiconductor material is used. Provided is a vertical transistor including a channel formation region formed using an oxide semiconductor which has a wider band gap than a silicon semiconductor and is an intrinsic semiconductor or a substantially intrinsic semiconductor with impurities that can serve as electron donors (donors) in the oxide semiconductor removed. The thickness of the oxide semiconductor is greater than or equal to 1 μm, preferably greater than 3 μm, more preferably greater than or equal to 10 μm, and end portions of one of electrodes that are in contact with the oxide semiconductor is placed inside end portions of the oxide semiconductor.

The semiconductor device includes a first conductive layer over a substrate; an oxide semiconductor layer which covers the first conductive layer; a second conductive layer in a region which is not overlapped with the first conductive layer over the oxide semiconductor layer; an insulating layer which covers the oxide semiconductor layer and the second conductive layer; and a third conductive layer in a region including at least a region which is not overlapped with the first conductive layer or the second conductive layer over the insulating layer.

The invention relates to a preparation method of a fiber with high water absorption, which is a method for preparing the fiber with high water absorption by a post-crosslinking agent. According to the preparation method, the fiber with high water absorption is prepared from acrylic acid (AA) and acrylamide (AM) which are partly neutralized and taken as polymerized monomers through the steps of: blending the polymerized monomers with polyving akohol (PVA), initiating by potassium persulfate (KPS), blending and polymerizing in an aqueous solution, adding a dialdehyde solution to obtain a mixed solution serving as a post-crosslinking agent solution, mixing to be uniform and defoaming to obtain a spinning stock solution; dry-wet spinning the spinning stock solution to form a nascent fiber; and heat-treating the nascent fiber at a certain temperature to generate a crosslinking reaction, thereby forming the three-dimensional net-structured fiber with high water absorption. According to the preparation method, the implosion phenomenon which easily occurs during polymerization of the traditional polymer solution with high water absorption is avoided, the preparation technology is simple and safe, the production cost is reduced, and the production efficiency is increased; and the obtained water-absorbing fiber has high and controllable water adsorption, thermostability, capability of being repeatedly used, and long residual action.

The invention relates to a quality chemical sensor using a functionalized mesoporous material as a sensitive material, and a manufacturing method and application thereof, and belongs to the field of micro-nano sensors. The sensor is characterized in that: an organic functionalized mesoporous material is used as the sensitive material, and a quality transducer is used as a sensitive detection platform. In the quality chemical sensor, preferential adsorption of specific target chemical molecules is realized by utilizing specific organic functional groups of the functionalized mesoporous material, the adsorption capacity of the sensitive material to the specific target chemical molecules is improved by utilizing the high specific surface area and porosity of the functionalized mesoporous material, and the adsorption of the functionalized mesoporous material to the specific target chemical molecules is converted into electrical signals to be outputted by utilizing the quality transducer so as to detect the specific target chemical molecules.

The present invention features that by selecting different sort and amount of emulsion and assistants, four kinds of wall finish paint, including styrene-acrylate wall finish paint, acrylate wall finish paint, organosilicon modified acrylate wall finish paint and high elasticicty wall finish paint, of different performance/cost ratio are proposed. They features the introduction of hydroxyethyl cellulose and non-transparent hollow polymer. Therefore, the outer wall finish paint has excellent alkali resistance, color maintaining property, antifouling property, ultraviolet ray resistance, freeze thawing resistance, waterproof property, etc.

The invention discloses a heat-resistant flexible transparent conductive film and a preparation method of the film. According to the film, the surface of PET is coated with coating, and then the film is prepared after being dried . According to the formula of the coating, the coating is composed of nanometer silver wires, oleoresin, additive powder, flatting agents and a proper quantity of organic solvents. The nanometer silver wires excellent in electrical conductivity and mixed additives composed of carbon fibers, nanometer limestone powder, nanometer palygorskite powder, nanometer aluminum oxide powder and propyl gallate are adopted for improving the electrical conductivity and the heat resistance of the film. The heat-resistant flexible transparent conductive film is low in cost and raw materials are easy to obtain.

The invention discloses a nanometer silver wire conductive silver paste. According to the nanometer silver wire conductive silver paste, nanometer silver wires are used for replacing silver powder on the basis of conventional conductive silver paste. The nanometer silver wire conductive silver paste comprises 28 wt%-32 wt% of conductive silver wires, 25 wt%-40 wt% of resin, 20 wt%-30 wt% of organic solvents, 1 wt%-10 wt% of glass powder and 1 wt%-10 wt% of additives. The small quantity of the nanometer silver wires replace 65 wt% to 75 wt% of silver powder in the conventional conductive silver paste, cost is reduced, and the nanometer silver wires can form a good conductive network so that resistance can be reduced and the electrical conductivity can be improved. Besides, because metal silver content is reduced, the cohesiveness of the prepared conductive silver paste is improved to a certain extent. The combined additives of 20 wt% of carbon nanotubes, 20 wt% of carbon fibers, 20 wt% of nanometer palygorskite, 10 wt% of polyether diol and 30 wt% of tetraethyl titanate are added in, and therefore the conductivity of the conductive silver paste is optimized better while the processability of the conductive silver paste is guaranteed.

In a transistor, a drain electrode to which a high electric field is applied is formed over a flat surface, and an end portion of a gate electrode on the drain electrode side in a channel width direction and an end portion of the gate electrode in a channel length direction are covered with an oxide semiconductor with a gate insulating layer between the gate electrode and the oxide semiconductor layer, so that withstand voltage of the transistor is improved. Further, a semiconductor device for high power application, in which the transistor is used, can be provided.

The invention relates to a preparation method of a master batch for a graphene/PVC (Polyvinyl Chloride) composite material and the master batch. The preparation method comprises the following steps: adding graphene in a solvent, and dispersing, thus obtaining a first mixed solution; adding PVC in the solvent, and dissolving the PVC, thus obtaining a second mixed solution; drying after mixing the first mixed solution and the second mixed solution which are obtained in the first two steps, thus obtaining the master batch. According to the preparation method disclosed by the invention, the problem of dispersing the graphene in the PVC is solved, the prepared master batch can be compounded and mixed with the PVC in any proportions, and the application field of a PVC material can be expanded. According to the master batch prepared by the preparation method, the proportions of all components in the master batch can be regulated according to actual needs, so that different using effects can be achieved; the master batch can be prepared into antistatic materials, heat conduction materials and high-performance composite materials according to the purpose of the PVC material.

The invention discloses a heat reflecting paint, and a preparation method and an application thereof. The heat reflecting paint comprises the following components in parts by weight: 100 parts of fluorine-containing (methyl) acrylate polymer emulsion, 2-30 parts of reflecting pigment, 0.1-4 parts of filler, 2-40 parts of flatting agent, 1-20 parts of coalescing agent, 0.01-1 part of thickening agent, 0.01-2 parts of dispersant, 0.001-1 part of wetting agent, 0.1-60 parts of distilled water and 0.5-5 parts of cross-linking agent. The heat reflecting paint provided by the invention is high in heat reflection performance, and excellent in acid and alkali resistance, weather fastness and stain resistance. The heat reflecting paint provided by the invention is applied to a bituminous pavement; the heat reflecting paint is capable of relieving the urban heat island effect by reducing the road surface temperature, and reducing the environmental pollution generated in the use process of the coating, and also capable of improving the stain resistance of the coating and ensuring persistent cooling effect of the heat reflecting coating.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a high-voltage anode material for a lithium ion battery. The anode material comprises a material A and a material B, wherein the material A has a core-shell structure, a core layer material is lithium cobalt oxide particles formed by primary particles, the median particle diameters D50 of the lithium cobalt oxide particles are 15-25 microns, and the structure formula of a core-shell material is LixNiyMnzPO4; the material B has a core-shell structure, the core layer material is the lithium cobalt oxide particles formed by secondary particles, and the median particle diameters D50 of the lithium cobalt oxide particles are is 3-9 microns; and the structure formula of the core-shell material is LiwAlpZrqO2, and the mass ratio of the material A to the material B is (0.1-10) to 1. Compared with the prior art, the high-voltage anode material for the lithium ion battery provided by the invention has the advantages that the large and small lithium cobalt oxide particles are combined reasonably, different core layer materials can be arranged on the surfaces of the lithium cobalt oxide particles, and the secondary particles are selected as the small lithium cobalt oxide particles, so that the cycle performance and the safety performance of the anode material under high voltage are notably improved.

The invention provides a hot-melt pressure sensitive adhesive for waterproof rolls, and a preparation method thereof, and belongs to the technical field of adhesives. The problems of poor heat resistance and poor adhesion to a concrete substrate of existing hot-melt pressure sensitive adhesive for waterproof rolls are solved. The hot-melt pressure sensitive adhesive for waterproof rolls comprises5-30 wt% of a thermoplastic elastomer, 5-15 wt% of a saturated thermoplastic elastomer, 25-50 wt% of tackifying resin, 15-40 wt% of a plasticizer, 0.5-5 wt% of an silicone additive and 0.5-5 wt% of astabilizer, wherein the silicone additive is prepared by a controlled condensation reaction of different silane monomers. The hot-melt pressure sensitive adhesive for waterproof rolls has the advantages of good heat resistance and good adhesion to the concrete substrate, and the preparation method of the pressure sensitive adhesive has the advantages of simple preparation process, low cost and good economic values.

This invention relates to high performance of silicon emulsion and its production. It is prepared from octaalkyl cyclotetrasiloxane and octavinyl cyclotetrasiloxane mixed monomer, and acrylic acid monomer acted with catalyst, initiator, emusifier and pH regulator. Its process includes polymerizing seed emulsion, polymerizing nucleic emulsion, and polymerizing nucleic shell silicon emulsion. It has uniformly sized particles and is stable quality and production. Coatings with it are waterproof, weatherproof, washing resistant and stain-resistant.

The invention discloses a high-safety double-doped high-nickel ternary positive electrode material, a preparation method thereof and a lithium ion battery. The high-nickel ternary positive electrode material comprises a polycrystalline nickel cobalt lithium manganate matrix, wherein the molar content of Ni element in the polycrystalline nickel cobalt lithium manganate matrix accounts for more than80% of the total molar weight of Ni, Co and Mn, and Zr and Sr elements are doped in the polycrystalline nickel cobalt lithium manganate ternary positive electrode matrix. Compared with the prior art,the high-nickel ternary positive electrode material has the advantage that the thermal stability of the high-nickel ternary positive electrode material is remarkably improved on the premise of not reducing the proportion of the Ni element in the high-nickel ternary positive electrode material, namely, not reducing the specific capacity of the high-nickel ternary positive electrode material. Meanwhile, the price of the nickel element is far lower than that of the cobalt element, so that the nickel element accounts for a high proportion, transition metals such as cobalt account for a low proportion, and the advantage of reducing the cost of raw materials is considered.

The invention discloses an organic silicane high-adsorbing resin, which is copolymerized by soluble polycondensation product and vinyl monomer free radical with the content of organic silica as 0.1-5wt% as vinyl monomer, wherein the organic silicane is represented through Y (CH2) nSiX3 (Y is vinyl, epoxy radical, mercapto radical and so on; X is methoxyl, ethyoxyl, isopropoxy and so on); the resin adsorbs deionized water and salt water, which displays optical, heat and ultraviolet stability in the agricultural and hygiene domain.

The invention discloses a preparation method of a modified high-nickel ternary positive electrode material, which comprises the steps of uniformly mixing a nickel-cobalt-manganese hydroxide precursor with a lithium source and a magnesium source, and carrying out two-stage sintering to obtain a magnesium-doped ternary high-nickel positive electrode material; and dispersing the magnesium-doped ternary high-nickel positive electrode material in an organic solvent, then adding a vanadium source and a lithium source, uniformly stirring, heating, evaporating to dryness, drying, and sintering at high temperature to obtain the lithium vanadate-coated magnesium-doped high-nickel ternary positive electrode material. According to the modified high-nickel ternary positive electrode material disclosed by the invention, the cycle performance and the rate capability of the material can be synergistically improved due to the high-nickel ternary positive electrode material is subjected to double modification treatment of magnesium ion doping and fast ion conductor coating.