40results about How to "Improve coating stability" patented technology

Embodiments of the present invention relate to methods for preparing high optical density solutions of nanoparticle, such as nanoplates, silver nanoplates or silver platelet nanoparticles, and to the solutions and substrates prepared by the methods. The process can include the addition of stabilizing agents (e.g., chemical or biological agents bound or otherwise linked to the nanoparticle surface) that stabilize the nanoparticle before, during, and / or after concentration, thereby allowing for the production of a stable, high optical density solution of silver nanoplates. The process can also include increasing the concentration of silver nanoplates within the solution, and thus increasing the solution optical density.

The present invention provides a coating liquid which is excellent in stabilities and capable of being stably ejected by an ejection equipment and suppressing variation in film thickness inside a film or between films, in application for various uses, a film production method, a production method of a functional device, and a functional device, using the coating liquid. The present invention is a coating liquid comprising a mixed solvent and a functional material, wherein the mixed solvent comprises a first solvent constituted by a compound having two or more aromatic rings such as diphenyl sulfide, diphenylmethane, diphenyl ether, and a symmetric structure and another solvent constituted by a compound having an aromatic ring such as xylene, and a proportion by volume of the another solvent is 90% or less in the mixed solvent.

The invention discloses a household socket. The household socket comprises a socket box, wherein an insertion surface butted with a plug is arranged on the socket box; a cover body is also arranged onthe socket box; a protection layer is arranged on the inner wall of the cover body. The protection layer is prepared from the following components in parts by mass: 20-30 parts of organosilicone modified epoxy resin, 10-15 parts of a polyvinyl acetate emulsion, 0-15 parts of a plasticizer, 2-4 parts of a flame retardant, 5-8 parts of diatomite, 1-3 parts of pigments and fillers, 5-7 parts of a silane coupling agent, 4-6 parts of a curing agent, 0.5-1 part of a flame-retardant synergist, 0.1-0.5 part of an antioxidant and 0.2-0.4 part of composite rare earth. The flame-retardant treatment process is simple and is easy to operate; the treated socket has extremely high flame resistance; the service life of the socket is prolonged; and the cost is reduced.

The invention relates to a sustained-release mildewproof / antibacterial and self-cleaning bifunctional casein-based nanometer microcapsule coating material and a preparation method thereof. The preparation method comprises the following steps: adding casein powder into a weak acid solution, performing stirring dissolution and cooling to obtain a solution A, adding a mildewproof agent or antibacterial agent, polymeric micelles, tetrabutyl orthotitanate and a coupling agent into an organic solvent, performing stirring dissolution and cooling to obtain a solution B, and slowly adding the solution B into the solution A for continuous stirring, so as to obtain a target product. According to the material and the preparation method thereof, a mildewproof agent or antibacterial agent coated polymer-based inorganic composite nanometer microcapsule is prepared by adopting casein as a substrate, introducing the mildewproof agent or the antibacterial agent into a core layer and introducing an inorganic nanometer shell layer in a precursor hydrolysis manner, and is nanometer-scale, uniform in size distribution and controllable in size; the inorganic nanometer shell layer is nanometer titanium dioxide, and a coating self-cleaning effect can be achieved under ultraviolet irradiation, so that the material has mildewproof / antibacterial and self-cleaning bifunctionality.

A method of depositing a thin gold coating on bipolar plate substrates for use in fuel cells includes depositing a gold coating onto at least one surface of the bipolar plate substrate followed by annealing the gold coating at a temperature between about 200° C. to 500° C. The annealed gold coating has a reduced porosity in comparison with a coating which has not been annealed, and provides improved corrosion resistance to the underlying metal comprising the bipolar plate.

The present invention provides a coating liquid which is excellent in stabilities and capable of being stably ejected by an ejection equipment and suppressing variation in film thickness inside a film or between films, in application for various uses, a film production method, a production method of a functional device, and a functional device, using the coating liquid. The present invention is a coating liquid comprising a mixed solvent and a functional material, wherein the mixed solvent comprises a first solvent constituted by a compound having two or more aromatic rings such as diphenyl sulfide, diphenylmethane, diphenyl ether, and a symmetric structure and another solvent constituted by a compound having an aromatic ring such as xylene, and a proportion by volume of the another solvent is 90% or less in the mixed solvent.

A method of depositing a thin gold coating on bipolar plate substrates for use in fuel cells includes depositing a gold coating onto at least one surface of the bipolar plate substrate followed by annealing the gold coating at a temperature between about 200° C. to 500° C. The annealed gold coating has a reduced porosity in comparison with a coating which has not been annealed, and provides improved corrosion resistance to the underlying metal comprising the bipolar plate.

The present disclosure relates to a binder solution for an anode, comprising a thermally cross-linkable polymer binder that is cross-linked by heat, and a solvent for dissolving the thermally cross-linkable polymer binder, and exhibiting a concentration of hydrogen ions corresponding to pH 2.5 to pH 4.5; an active material slurry for an anode, comprising the binder solution; an anode using the slurry; and an electrochemical device comprising the anode. The binder solution for an anode according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and also can provide good dispersibility to the active material slurry for an anode, thereby improving the coating stability of an anode active material layer.

The invention discloses a polydimethylsiloxane surface modification method based on hydrophobin / methylcellulose. The hydrophobin SC3 and the methylcellulose are used as the surface modifier to be physically adsorbed onto the surface of a micropassage of the polydimethylsiloxane to form an amphipathic monomolecular film, then a chip passage is heated, so that the structure conversion of the hydrophobin SC3 can be induced by the methylcellulose, and a stable amphipathic monomolecular film is formed on the surface of the micropassage of the polydimethylsiloxane. By adopting the method, the coating stability of the polydimethylsiloxane can be improved, the surface hydrophily of the passage can be improved, the non-specificity adsorption of the protein on the surface of the micropassage can be effectively prevented, the antipollution capacity of the surface of the polydimethylsiloxane can be improved, and the high-efficiency reproducibility and separation of an analyzed substance can be realized.

The invention discloses a method for modifying polydimethylsiloxane by hydrophobic coating self-assembly by using an ion complementary peptide, which comprises the following steps: by using an ion complementary peptide EAR16-II or ion complementary peptide EAR16-II, methyl cellulose and dodecyl-beta-D-maltoside as a surface modifier, carrying out physical adsorption to perform self-assembly on the polydimethylsiloxane microchannel surface so as to form a stable hydrophobic film; and in the presence of saccharide derivatives, changing the configuration of the EAR16-II to form the more stable beta-folding self-assembled hydrophobic film. The method can effectively inhibit the non-specific adsorption of the protein to the microchannel surface, enhances the surface anti-pollution capacity and biological compatibility of the polydimethylsiloxane, and implements high-efficiency recurrent separation of the analyte.

A process for the preparation of a thixotropic aqueous coating composition comprising the steps of: i) providing an aqueous dispersion of a binder system comprising carbonyl and hydrazide functional groups for crosslinking; and ii) reacting in the aqueous dispersion, an ether amine with a tris(isocyanate) isocyanurate to form a polyurea sag control agent.

The invention discloses a process for improving the adhesive force of a coating layer, belongs to the technical field of vapor deposition, and aims to solve the problems that the existing parylene coating layer is low in adhesive force and easy to fall off due to non-uniform adhesion of a coupling agent in the early stage and non-uniform thickness of the coating layer during vapor deposition. Putting the workpiece into a drying oven, and drying and cleaning water vapor adsorbed on the surface of the workpiece; putting the workpiece into an evaporation reaction tank of a coating machine; sealing the reaction tank, vacuumizing to adsorb the silane coupling agent through the sponge, putting the sponge into the reaction tank, and carrying out coupling agent evaporation coating according to the requirements of a coating machine; adding parylene into the reaction tank, and carrying out vapor deposition to coat parylene according to the requirements of a coating machine; deflating the system and taking out the workpiece. The silane coupling agent is adsorbed through the sponge, the distribution area is increased, steam is evenly distributed in the reaction tank cavity, the coupling agent is evenly coated on the surface of a workpiece in an evaporation mode, then parylene is coated in a vapor deposition mode, and the adhesive force of a coating layer is improved.

The invention discloses a plastic spraying process for a cast aluminum alloy component. The plastic spraying process comprises the steps that shot blasting treatment, acid degreasing treatment, cleaning, passivating treatment, cleaning, drying and heat preservation treatment, plastic spraying treatment and curing treatment are sequentially carried out on the cast aluminum alloy component. According to the process, the technical problem that a plastic spraying coating on the surface of a cast aluminum alloy is prone to loosening and falling off in the machining or carving process is solved, the stability of the coating of the cast aluminum alloy component treated through the method is greatly improved, and the machining performance of the cast aluminum alloy component is remarkably improved.

Enclosed is a magnetic recording medium obtained by sequentially providing on a flexible nonmagnetic support a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder and a binder. The thickness of the magnetic layer is 0.01-0.1 mum and the ratio of the exposed area of nonmagnetic power on the surface of the magnetic layer is not greater than 10 percent. A method of manufacturing a magnetic recording medium comprising coating a nonmagnetic layer coating liquid on a flexible nonmagnetic support and applying a magnetic layer coating liquid on the coated layer while the coated layer is still wet. The ratio of the exposed area of nonmagnetic power on the surface of the magnetic layer is not greater than 10 percent; the nonmagnetic layer coating liquid has a yield stress of not less than 100 muN / cm2 or 10 dyne / cm2 and the solid component concentration of the magnetic layer coating liquid is greater than the solid component concentration of the nonmagnetic layer coating liquid. A particulate magnetic recording medium having a magnetic layer of not greater than 0.1 mum, good production properties, and good electromagnetic characteristics when used with MR heads is provided.

The invention discloses an automatic coating device of a honeycomb exhaust pipe catalyst. The automatic coating device is composed of a material storage system, a pressure control system and a rapid interface device; the material storage system is mainly composed of a storage cabin and a stirrer; the pressure control system is mainly composed of a quantitative injection pump, a discharging pipe, a one-way valve, an electromagnetic valve, a backflow pipe and a pressure-retaining cabin; and the rapid interface device is mainly composed of a rapid joint mechanism, a double-upright-post frame, a stress-applying lever system, a sealing base assembly and a cylinder. By means of application of the automatic coating device of the honeycomb exhaust pipe catalyst disclosed by the invention, constancy and homogeneity of the coating amounts of coatings are ensured; the product quality accords with enterprise standard requirements; the labour intensity of first-line operators is greatly lightened; and the production efficiency is effectively increased.

A method for coating a metallic or inorganic substrate is described, such as metal or glass supports, with an organic layer comprising conjugated diene phosphinate or phosphonate compounds.