105 results about "Metal alkoxide" patented technology

The invention relates to the technical field of vaccine adjuvants, and particularly discloses a preparation method of a nanoscale aluminum hydroxide adjuvant based on organic metal alkoxide hydrolysis. Aluminum isopropoxide is used as a precursor, and a hydrolysis interface is directionally regulated and controlled through a compound surfactant; a staged hydrolysis process is adopted, and a kinetic equation is met; and the surface is modified by a KH-550 coupling agent. According to the preparation method disclosed by the invention, boehmite phase crystallization, nanoscale uniformity and high antigen adsorption stability are synchronously realized at low temperature through alcoholate hydrolysis bond energy reconstruction, surface activity compounding interface regulation and control and staged kinetic control, and the bottlenecks of high temperature, high energy consumption and non-uniform particle size of a traditional process are overturned; and a novel industrial scheme with low consumption and high efficiency is provided for vaccine adjuvants.

The invention provides a high-corrosion-resistance environment-friendly coating material for an offshore wind power neodymium-iron-boron magnet and a preparation process of the high-corrosion-resistance environment-friendly coating material. The coating material comprises 35-45 parts of composite resin, 40-45 parts of a gradient filler system, 25-30 parts of an environment-friendly solvent and 1.0-1.5 parts of auxiliaries. A compact shielding layer is formed through a Si-O-Ti / Zr / Al inorganic framework interpenetrating network and a hydrophobic nanoparticle-high radius-thickness ratio micron lamellar labyrinth structure, the salt mist service life is larger than or equal to 1500 h, the adhesive force is larger than or equal to 15 MPa, the hardness is larger than or equal to 4 H, and VOC is smaller than 50 mg / m < 3 >; the coating is applied to an offshore wind power neodymium-iron-boron magnet coating process, the problems that a traditional coating is insufficient in corrosion resistance, weak in edge protection and high in pollution are solved, and the long-acting, stable and maintenance-free requirements of C5-M offshore wind power are met. The preparation process of the coating material comprises the following steps: preparing composite resin, treating gradient filler, compounding the coating material, performing one-step modification on epoxy / phenolic resin and metal alkoxide under the protection of inert gas, performing high-speed shearing on modified nano filler, performing gradient dispersion on the modified nano filler and flaky micron filler, performing three-roller grinding to be less than or equal to 15 microns, and performing vacuum defoaming to obtain a finished product of the coating material.

The present disclosure relates to methods and apparatuses for depositing metal-containing material on a substrate by a selective deposition process. The method comprises providing a substrate in a reaction chamber, providing a metal alkoxide precursor into the reaction chamber in a vapor phase; and providing a second precursor into the reaction chamber in a vapor phase to form metal-containing material on the substrate. The second precursor according to the disclosure comprises a borane compound and the substrate comprising a first surface and a second surface.

A laminate of the present disclosure has a substrate and a barrier layer containing a barrier composition. The barrier composition contains a water-soluble polymer, an inorganic layered compound, and at least one of a metal alkoxide and a hydrolysate thereof. The mass ratio of the water-soluble polymer to the inorganic layered compound in the barrier composition is from 0.3 to 3.0 (inclusive).

A method of anodizing an aluminum alloy, comprising the steps of: providing an anodizing bath containing tert-butoxide, primarily oxalic acid; aging the anodic oxidation bath to condense the metal alkoxide to form metal oxide particles and an acid ester; heating the bath to 40 DEG C to 80 DEG C; stirring the bath at a speed of 200 to 700 rpm (revolutions per minute); immersing the workpiece in a bath and anodizing at a constant current density of 1 A / dm2 to 4 A / dm2 for 1 to 20 minutes or until the bath voltage reaches a threshold value of 100 to 200 V; the workpiece is then anodized at a constant voltage for 20 minutes to 200 minutes to produce an anodized surface having a thickness of 5 microns to 100 microns, the anodized surface comprising an optically discontinuous pore structure that produces a white or near-white appearance.

Metal-organic thermoset polymers are provided. The metal-organic thermoset polymers can be formed from a mixture including at least one epoxy resin and at least one metal alkoxide. Articles including the metal-organic thermoset polymers and processes for manufacturing the metal-organic thermoset polymers are also provided.

The invention relates to the technical field of metal alkoxide preparation, and particularly provides a method for rapidly solidifying aluminum isopropoxide, which comprises the following steps: concentrating liquid aluminum isopropoxide in vacuum at 80-90 DEG C until the concentration is greater than or equal to 95%; sequentially adding 0.1 to 0.2 percent of a crystallization assisting solvent TXIB, 0.05 to 0.1 percent of a nanoscale aluminum isopropoxide seed crystal and 0.01 to 0.1 percent of a magnesium isopropoxide eutectic seed crystal; crystallization is completed through gradient cooling, and the whole process is less than or equal to 24 hours; and finally, carrying out solid-liquid separation, washing and drying to obtain the high-purity aluminum isopropoxide crystal. Through the synergistic effect of the bifunctional seed crystal and the TXIB, the crystallization period is remarkably shortened, the crystal quality is improved, and the method is suitable for industrial production.

The present invention relates to a preparation method of a high-entropy ceramic-supported composite conductor material, which specifically comprises the following steps: using a plurality of metal alkoxides as raw materials, obtaining gel precursor microspheres through a sol-gel reaction and spray drying, and forming a three-dimensional ceramic skeleton structure of high-entropy nitride hollow microspheres through high-temperature nitriding treatment; subsequently, using pulsed ultrasound and air pressure circulation to infiltrate and fill a low-melting-point gallium-based liquid metal alloy into the ceramic skeleton to construct a closed and continuous conductive channel; achieving interfacial bonding between the metal and the ceramic through vacuum heat treatment; further, forming silver nanocatalytic sites in situ by spraying a silver nitrate aqueous solution and performing microwave reduction, and finally inducing the growth of uniformly oriented boron nitride nanotubes in a borane ammonia atmosphere to form a protective layer with a heat diffusion function; the obtained composite conductor has good electrical conductivity, thermal stability and structural integrity, and is suitable for the field of high current density power transmission.

A metal oxide-coated aerogel has an aerogel structure comprising yttria-stabilized zirconia (YSZ) and a coating on the aerogel structure. The YSZ includes at least about 20 mol. % yttria (YO1.5) in zirconia (ZrO2) and the coating comprises a metal oxide selected from the group consisting of silica, alumina, zirconia, and titania. An aerogel composite includes a fibrous material and an aerogel on surfaces and within interstices of the fibrous material, where the aerogel has an aerogel structure comprising yttria-stabilized zirconia (YSZ) and a coating on the aerogel structure that comprises a metal oxide. A method of forming a thermally stable aerogel comprises: forming a gel comprising yttria-stabilized zirconia (YSZ) including at least about 20 mol. % yttria (YO1.5) in zirconia (ZrO2); immersing the gel in a coating solution comprising a metal alkoxide and ethanol; and after the immersion, supercritically drying the gel, thereby forming a metal oxide-coated aerogel.

The present disclosure relates to a method for reactivating a co-cured film layer disposed on a composite structure, the method comprising applying a reactivation treatment composition to the co-cured film layer and allowing the reactivation treatment composition to produce a reactivated co-cured film layer, the reactivation treatment composition comprising at least two solvents and a surface exchange agent comprising a metal alkoxide or a chelate thereof, wherein the co-cured film layer is pre-cured at a cure temperature greater than about 50° C. Also provided are a reactivated co-cured film layer and an aircraft component having the reactivated co-cured film layer.

A method for controlling a reactive distillation column for effecting a transalcoholisation reaction, comprising feeding a metal methoxide into the reactive distillation column via a side feed; feeding a reactant alcohol into a lower part of the reactive distillation column; withdrawing methanol from the top of the reactive distillation column; and withdrawing a solution of a product metal alkoxide in the reactant alcohol from the bottom of the reactive distillation column; wherein the method comprises a process control scheme selected from: Scheme A: establishing a signal S1 which is responsive to a temperature in the rectifying section disposed above the feed of the metal methoxide; and manipulating in response to the signal S1 the feed amount of the reactant alcohol; Scheme B: establishing a signal S1 which is responsive to a temperature in the rectifying section disposed above the feed of the metal methoxide; and manipulating in response to the signal S1 the heat supplied to the bottom of the reactive distillation column. The invention also relates to a method for controlling a reactive distillation column for effecting a transalcoholisation reaction, comprising feeding a metal methoxide into the reactive distillation column via a side feed; feeding a reactant alcohol into a lower part of the reactive distillation column; causing an auxiliary alcohol to be present in the reactive distillation column; and optionally replenishing the auxiliary alcohol via a side feed located above the feed of the reactant alcohol and below the top of the column; withdrawing methanol from the top of the reactive distillation column; and withdrawing a solution of a product metal alkoxide in the reactant alcohol from the bottom of the reactive distillation column; wherein the method comprises a process control scheme selected from: Scheme C: establishing a signal S2 which is responsive to a temperature at a point located between the feed of the metal methoxide and the bottom of the reactive distillation column; and manipulating in response to the signal S2 the feed amount of the reactant alcohol; Scheme D: establishing a signal S2 which is responsive to a temperature at a point located between the feed of the metal methoxide and the bottom of the reactive distillation column; and manipulating in response to the signal S2 the heat supplied to the bottom of the reactive distillation column. The methods of the invention allow for improved controlling of a reactive distillation column for effecting a transalcoholisation reaction.

Described herein is an aqueous composition and a method of making a sol-gel coating. The aqueous composition comprises (a) an organometallic salt, wherein the organometallic salt comprises an acid-stable metal alkoxide, a metal carboxylate, or a mixture thereof; and (b) an aminosilane, wherein the aqueous composition has a pH less than or equal to 7. Such sol-gel coating compositions can be used to adhere an organic resin to a metal substrate.

A gas barrier laminate including a gas barrier layer and a sealing layer laminated on a substrate in this order, wherein the gas barrier layer is a layer formed by applying and heat-drying a coating solution containing a water-soluble polymer and at least one of a metal alkoxide represented by a general formula M(OR1)n(where M is a metal element, R1 is an alkyl group, and n is the oxidation number of the metal element) and a hydrolyzate of the metal alkoxide, a content of the water-soluble polymer is 50 wt % or more relative to a total mass of a solid content in the coating solution, a total content of the metal alkoxide and the hydrolyzate thereof is 5 to 50 wt % relative to the total mass of the solid content in the coating solution, and the sealing layer contains an aqueous heat seal varnish.

The present invention relates to a formulation for preparing an optical layer containing a metal oxide. The formulation may exhibit at least one of properties as an advanced material or as a high performance material. The formulation may be used in the nanotechnology process to make semiconductor device / display device application, for example semiconductor chip, or a liquid crystal, quantum dot, OLED display fabricated on a substrate controlled by semiconductors.

The invention provides Sc2O3 porous aerogel as well as a preparation method and application thereof. According to the method, ScCl3. 6H2O is selected as a scandium source and is non-toxic, and the reaction activity of the ScCl3. 6H2O is controllable compared with that of organic metal alkoxide. In addition, compared with supercritical drying and freeze drying, the normal-pressure drying method for graded drying is lower in cost and higher in safety, and graded drying can effectively protect the nano structure and reduce cracking and collapse of the sample as much as possible. In addition, the scandium oxide aerogel is synthesized for the first time, and the product is high in porosity, large in specific surface area and good in heat insulation performance and has positive significance in application of aerogel materials in various fields.

The present invention discloses a method for preparing a composite gel electrolyte, as well as its preparation method and application. The method comprises the following steps: preparing a polymer solution: mixing a high molecular weight polymer matrix with an organic solvent, stirring and dissolving the mixture at room temperature to obtain a transparent and uniform polymer solution; preparing a composite gel film: adding a metal alkoxide additive to the polymer solution, stirring the mixture evenly, and then standing the mixture to solidify. After the solvent evaporates, a smooth and flexible polymer film is obtained, and the polymer film is then dried; and preparing a composite gel electrolyte: immersing the polymer film in an electrolyte solution, and obtaining a gel polymer electrolyte after the polymer film swells. The composite gel electrolyte prepared by this method can have excellent ionic conductivity, high energy density, and stability, good compatibility with the positive and negative electrodes of lithium batteries, and can exhibit excellent electrochemical performance when applied to lithium metal batteries.

The present invention discloses a high-boiling silicone oil and its preparation method and application, which belongs to the field of high-boiling organosilicon products. The preparation method of the high-boiling silicone oil provided by the present invention comprises the following steps: (1) mixing a high-boiling organosilicon product, a high-boiling organosilicon product treatment agent and water for reaction, adding an alkaline neutralizing agent for neutralization to obtain an intermediate product; the boiling point of the high-boiling organosilicon product is above 180°C; the high-boiling organosilicon product treatment agent comprises at least one of trimethylchlorosilane, dimethyldichlorosilane or ethanol; (2) adding an alkali metal alcohol salt to the intermediate product obtained in step (1), mixing and reacting, then adding an acidic neutralizing agent for neutralization, removing low-boiling products with a boiling point below 150°C, and obtaining the high-boiling silicone oil. The high-boiling silicone oil prepared by the present invention has the characteristics of low volatility, low acid value, and is not easy to return to acid, and has excellent insulation performance. It can be used as a diluent for sealants and lubricating oil for electronic appliances.

In order to produce core-shell particles and hollow particles having a sharp particle size distribution by suppressing the generation of solid particles and also suppressing particle aggregation and coalescence, this method for producing core-shell particles according to one embodiment of the present disclosure involves mixing an oil phase containing a hydrophobic organic solvent and a metal alkoxide into an aqueous phase comprising water and / or a hydrophilic organic solvent while in the presence of a surfactant, forming an O / W emulsion, and producing core-shell particles having a solvent as a core and a metal oxide as a shell.

A method of manufacturing an inorganic oxide nanofiber of an embodiment of the disclosure includes: preparing a mixture solution by dissolving water, a metal alkoxide, a catalyst, and a surfactant in an aprotic or protic polar solvent; removing the polar solvent from the mixture solution and synthesizing a nanostructure having a reverse two-dimensional hexagonal structure; and thereafter decomposing the nanostructure.

This invention provides a multi-surface modified O2-type lithium-rich manganese-based material and its preparation method, belonging to the field of O2-type lithium-rich manganese-based cathode materials. This invention first coats a Na-based P2-type precursor with fluoride, followed by ion exchange to obtain an O2 structure. This improves the rate performance of the O2-type lithium-rich manganese-based material and avoids the phase transition (O2 to O3). An oxide coating layer is prepared on the surface of the fluorine and lithium compound-containing O2-type lithium-rich manganese-based material using metal alkoxides. This allows for low-temperature preparation of the oxide coating layer, preventing the O2 structure from transforming into the O3 structure and improving cycle stability. The multi-coating process suppresses the release of reactive oxygen species during charging, improving the first-cycle coulombic efficiency. The multi-surface modified O2-type lithium-rich manganese-based material prepared by this invention exhibits high first-cycle coulombic efficiency and cycle stability.

The invention discloses a preparation method of an anti-sticking slag coating for a laser cutting machine and the anti-sticking slag coating, and relates to the field of high-end equipment manufacturing and surface modification. The method comprises the following steps: treating an h-BN nano-material with a silane coupling agent alcohol-water solution to obtain h-BN-OH, preparing a ceramic sol by using metal alkoxide / silicate as a ceramic precursor, dispersing the h-BN-OH in the ceramic sol to form a covalent bond connected nano-composite sol, coating a base material with the nano-composite sol through a dip-coating / spin-coating method, and carrying out heat treatment in an inert / vacuum environment at 400-800 DEG C for 1-5 hours to form a coating, and the ratio of h-BN-OH in the coating is 5%-30%. In the coating, h-BN and a ceramic matrix are chemically bonded, a working adhesion work calculation model is also established, and quantitative prediction and optimization of the coating performance are realized. The coating is good in wetting resistance and durability, capable of effectively preventing adhesion of molten metal slag, high in process adaptability, controllable in cost and suitable for components such as laser cutting machine nozzles and supporting grilles, and the service life of the components can be remarkably prolonged.

The present invention relates to a process for the synthesis of stannous alkoxides. Some embodiments of the methods include contacting a stannous halide with a metal alkoxide to form a stannous alkoxide. Some embodiments of the methods include contacting an aminated tin compound with an alcohol compound to form a stannous alkoxide. Some embodiments of the methods include contacting a stannous halide with at least 3 equivalents of a metal alkoxide to form a tin compound. Some embodiments of the methods include contacting a stannous halide with an alcohol compound and a co-reactant base to form a stannous alkoxide.

The invention belongs to the technical field of porous metal oxides, and particularly relates to a preparation method and application of a honeycomb-shaped metal oxide. The invention provides a simple and universal method for synthesizing the honeycomb-shaped porous metal oxide. According to the method, the metal oxide with the orderly-arranged holes is obtained based on template precipitation and in-situ chemical conversion, the controllability of the reaction process can be improved, and the cost can be reduced. The method is characterized in that the appropriate metal salt is used for replacing the expensive metal alkoxide, the in-situ chemical conversion process is adopted, control over the environment temperature and humidity in the metal alkoxide hydrolysis process is avoided, the universality of the method is effectively improved, and meanwhile the more ideal production effect can be achieved by optimizing the reaction conditions.

To provide a heating roller whose resistance can be reduced, whose sufficient performance can be maintained over a long term and whose warming-up time can be shortened.SOLUTION: In the heating roller 100, a conductive layer 1 of a heating resistor is laminated on a cylindrical metal roller 3 via an insulating layer 2, and power is supplied to the heating resistor to generate heat. The heating resistor contains at least a predetermined amount of multi-walled carbon nanotubes, a predetermined amount of a silica-containing epoxy resin, and a predetermined amount of an organic metal compound, and the organic metal compound is at least one compound selected from the group consisting of an organic metal chelate compound and a metal alkoxide containing at least one metal selected from the group consisting of titanium, zirconium, and aluminum.SELECTED DRAWING: Figure 1

A display device includes a display panel that displays an image. A window layer is arranged on the display panel. A protective film is arranged on the window layer. The protective film includes a base layer directly contacting the window layer. A hard coating layer is arranged on the base layer. A first functional layer is arranged on the hard coating layer and includes a metal alkoxide compound. A second functional layer is arranged on the first functional layer and includes a cross-linking structure of a fluorinated acrylate compound.

The present invention relates to a coated cooking element (1) for a kitchen utensil or electrical cooking appliance, comprising a metal substrate (2) coated, on at least one face (2a), with at least the following layers in this order, starting from the metal substrate (2): (3a) a sol-gel base layer; (3c) a sol-gel layer obtained from a sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain that comprises at least one unsaturated compound and / or is substituted by a thiol group; and (3d) a finishing layer in contact with the layer (3c) and comprising an elastomer silicone obtained from at least one organopolysiloxane bearing reactive vinyl functional groups (-CH=CH2) and at least one other organopolysiloxane bearing reactive hydrosilane functional groups (-Si-H) or reactive thiol functional groups (-S-H).

The present invention relates to a coated cooking element (1) for a cooking article or electric cooking appliance, comprising a metallic substrate (2) coated on at least one face (2a) by a coating (3) consisting of the following layers and in this order from the metallic substrate (2): (3a) a sol-gel base layer obtained from at least one sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain comprising at least one unsaturation and / or substituted by a thiol group, (3b) optionally one or more discontinuous intermediate layer(s) which may be decorations,and (3c) a topcoat at least partially in contact with layer (3a) and comprising a silicone elastomer obtained from at least one organopolysiloxane bearing reactive vinyl (-CH=CH2) functions and at least one other organopolysiloxane bearing reactive silyl hydride (-Si-H) or reactive thiol (-SH) functions, wherein, when the silicone elastomer of layer (3c) is obtained from at least one organopolysiloxane bearing reactive thiol (-SH) functions, the metal alkoxide precursor of layer (3a) has an aliphatic chain comprising at least one unsaturation and which may further be substituted by a thiol (-SH) group. Figure for abbreviation: Figure 1,

The invention discloses composite coating liquid as well as a preparation method and application thereof, and belongs to the technical field of coating liquid. The coating liquid provided by the invention is prepared from the following preparation raw materials: a silicon source, metal alkoxide, an acidic catalyst and water, the metal alkoxide comprises at least one of zirconium n-propoxide and titanium n-propoxide; according to the preparation method and application of the composite coating liquid, metal alkoxide dissolved in an organic solvent and water is blended with a hydrolysis silicon source after being hydrolyzed, the two substances are jointly hydrolyzed and crosslinked under the acidic condition, due to the fact that ionic potentials are similar, evenly-distributed and stable particle clusters are formed at the positions where inorganic silicon ions are replaced by metal ions, and therefore the composite coating liquid is obtained. The coating liquid is coated on the surface of glass to form a uniformly distributed coating, and the compact inorganic high-weather-resistance anti-reflection coating is formed after high-temperature sintering and tempering.

The present invention relates to a coated cooking element (1) for a cooking article or electric cooking appliance, comprising a metallic substrate (2) coated on at least one face (2a) by at least the following layers and in this order from the metallic substrate (2): (3a) a sol-gel base layer; (3b) optionally one or more intermediate layer(s) which may be decorations;(3c) a sol-gel layer obtained from a sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain comprising at least one unsaturation and / or substituted with a thiol group, and (3d) a topcoat in contact with layer (3c) and comprising a silicone elastomer obtained from at least one organopolysiloxane bearing reactive vinyl functions (-CH=CH2) and at least one other organopolysiloxane bearing reactive silyl hydride functions (-Si-H) or reactive thiol functions (-SH), wherein, where the silicone elastomer of layer (3d) is obtained from at least one organopolysiloxane bearing reactive thiol functions (-SH), the metal alkoxide precursor of layer (3c) has an aliphatic chain comprising at least one unsaturation and which may further be substituted with a thiol group thiol (-SH). Figure for abbreviation: Figure 1;

For example, when used as a material for forming metal oxide thin films, the objective is to provide a metal alkoxide-containing composition that can form metal oxide thin films with fewer cracks and lower surface roughness compared to conventional thin films, even when the thickness is increased. [Solution] A metal alkoxide-containing composition comprising the following component (A) and the following component (B), wherein the mass-based content ratio (A / B) is 70.0 / 30.0 to 99.9 / 0.1. (A) Metal alkoxides with a total of 1 to 40 carbon atoms, (B) A hemiacetal ester of a carboxylic acid consisting of a 1-4 valent carboxylic acid and a vinyl ether, wherein the number of carbon atoms after removing the vinyl group of the vinyl ether is 1-6.