摘要:
A method of manufacturing ferromagnetic particle exothermic elements for performing a deposition treatment for causing a treating aqueous solution containing fluorine and iron to contact nucleus particles, to deposit iron hydroxide and form layers around the nucleus particles, and an after-treatment for heating the iron hydroxide layers to change them into ferromagnetic layers, thereby producing ferromagnetic particle exothermic elements with outside of the nucleus particles covered by the ferromagnetic layers, wherein, in time of the deposition treatment, a reaction initiator that reacts with hydrogen fluoride is added to said treating aqueous solution.
摘要:
A method for producing a silicon dioxide film by contacting a substrate such as glass with a treating liquid comprising a hydrosilicofluoric acid solution supersaturated with silicon dioxide to deposit a silicon dioxide film on the surface of the substrate, the method being characterized by providing a device for preventing an Si component from escaping from the treating liquid. According to the method, pollution of working environment and decrease in concentration of solution do not occur during the formation of silicon dioxide film.
摘要:
A process for producing aluminum nitride powders is disclosed, which comprises mixing a water-soluble aluminum-containing compound or an aluminum alkoxide and a water-soluble carbon-containing compound and/or a water-soluble nitrogen-containing compound, with water; drying the mixture to obtain a solid; and calcining the solid in a nitrogen-containing non-oxidative atmosphere. According to the process of the invention, high-purity uniform aluminum nitride fine powders can be obtained rapidly and inexpensively.
摘要:
A polymer composite contains colorant molecules dispersed therein. The colorant molecules can be dispersed in the polymer or bound to the polymer molecules. When the polymer is a polyamide, the polyamide is in a noncrystalline state due to the inhibition of crystallization imparted by the size and shape of the colorant molecules because the colorant is separated on a molecular level. A high colorant availability is obtained. A method of producing the polymer composite includes the steps of forming a metastable polymer resin layer, applying a film of colorant to the layer, stabilizing the layer, dissolving the stable layer in a solvent, aspirating the solution to remove impurities and aggregates and then removing the solvent. A polymer composition can be produced by mixing the polymer composite with a polymer.
摘要:
A method of producing metal particles, including the steps of forming a membrane of a polymer or oligomer which has, at the terminals of its molecule and/or in the side chains thereof, at least one functional group selected from cyano, amino and thiol groups, and depositing a metal on the membrane through vapor deposition so that the membrane has particles of the metal and/or its oxide dispersed therein.
摘要:
There is provided a substrate of which the surface is coated with a titanium dioxide film having a photocatalytic activity, which substrate is obtained by: depositing titanium dioxide in a film form on a surface of a substrate by contacting the substrate with a reaction solution containing ammonium titanium fluoride, water and an additive which shifts the following equilibrium reaction: (NH.sub.4).sub.2 TiF.sub.6 +2H.sub.2 O TiO.sub.2 +4HF+2NH.sub.4 F toward a right side, and calcining the deposited titanium dioxide film.
摘要:
An elastomeric electrode having an electrically conductive base, a protective layer enclosing the base formed of an elastomeric material having electrically conductive material selected from the group consisting of highly conductive carbon black, graphite, and glassy carbon distributed therein and present in the amount of 10 to 30 parts by weight to 100 parts by weight of the elastomeric material. A terminal extends from the base to exteriorly of the protective layer.
摘要:
A particle dispersed glassy material includes ultrafine metal particles that are present in a high concentration. The particles are surrounded by a fixation component and, optionally, can be surrounded by a skeleton forming component. The glassy material is produced by firing a substrate having a film thereon that includes a polymer composite having the ultrafine particles uniformly dispersed therein, a fixation reagent and, optionally, a skeleton forming reagent under relatively mild conditions that do not damage the substrate. A method of making the glassy material includes the steps of making a film-forming composition that includes the polymer composite, the fixation reagent and, optionally, the skeleton forming reagent, applying the composition to a substrate, drying the applied composition to produce a film and firing the film to produce the glassy material.
摘要:
A particle dispersed glassy material includes ultrafine metal particles that are present in a high concentration. The particles are surrounded by a fixation component and, optionally, can be surrounded by a skeleton forming component. The glassy material is produced by firing a substrate having a film thereon that includes a polymer composite having the ultrafine particles uniformly dispersed therein, a fixation reagent and, optionally, a skeleton forming reagent under relatively mild conditions that do not damage the substrate. A method of making the glassy material includes the steps of making a film-forming composition that includes the polymer composite, the fixation reagent and, optionally, the skeleton forming reagent, applying the composition to a substrate, drying the applied composition to produce a film and firing the film to produce the glassy material.
摘要:
A polymer composite includes a thermoplastic plastic polymer having a fine grain metal or metal oxide dispersed therein. Preferably, the fine grains has a size of about 1,000 nm or less. A method of making the polymer composite by adhering a metal layer to a thermoplastic polymer layer in a thermodynamically nonequilibrated condition followed by relaxation of the polymer layer to obtain thermodynamic equilibrium which causes the metal layer to be absorbed by the polymer layer as fine grains is also disclosed.