9results about How to "Not easy to migrate" patented technology

The invention relates to the technical field of automobile parts, and particularly discloses an anti-oxidation corrosion-resistant automobile air-inlet grille and an electroplating process thereof.The anti-oxidation corrosion-resistant automobile air-inlet grille is prepared from phenoxy-terminated siloxane modified polycarbonate, ABS resin, a modified LDHs antioxidant, a compatilizer ABS-g-MAH and a lubricant ethylene bis stearamide through melt blending, extrusion granulation and injection molding. And a copper layer, a nickel-phosphorus layer and a cobalt-chromium layer are further electroplated and deposited on the automobile air-inlet grille, and the anti-oxidation and corrosion-resistant automobile air-inlet grille is formed.

The application relates to the technical field of fibers, and discloses a long-acting antibacterial fiber and a preparation process thereof. 1,3,5-tri(methyl acetate trimethyl ammonium bromide) benzene and ethylenediamine are subjected to amidation condensation reaction to obtain a quaternary ammonium salt antibacterial agent, then electrostatic spinning is carried out with polyurethane resin to obtain the long-acting antibacterial fiber. The antibacterial agent contains a large number of positive charges, can destroy the negatively charged cell membranes of bacteria, inhibit the growth of bacteria, has a good killing effect, and significantly improves the long-acting antibacterial performance of the fiber. The quaternary ammonium salt antibacterial agent contains a large number of amide bonds, forms hydrogen bond force with urethane groups of the polyurethane, has good compatibility, has little influence on the mechanical properties of the fiber, the polyurethane fiber maintains good breaking strength and breaking elongation, and can have good mechanical properties and antibacterial performance.

This invention relates to luminescent materials, specifically to a red-light perovskite luminescent material, its preparation method, and a light-emitting diode device. The red-light perovskite luminescent material comprises an iodine-based perovskite, wherein the iodine-based perovskite includes at least two spacer cations, and the iodine-based perovskite comprises a structure with the structural formula NMA. x PPA y Cs w Pb m I i The compound, of which 0.08

The application relates to the technical field of composite material catalyst preparation, in particular to a molybdenum-doped iron monatomic composite material catalyst and a preparation method and application thereof. The catalyst comprises a substrate of zirconium dioxide ZrO2 and nitrogen-doped carbon and iron and molybdenum dispersed on the substrate, the iron is dispersed on the substrate in the form of monatomic and is coordinated with nitrogen atoms in the substrate. The catalyst is in a nanoparticulate structure formed by stacking of sheets and can be used for catalyzing nitrogen N2 hydrogenation to synthesize ammonia NH3, has good stability, can realize N2 hydrogenation to synthesize NH3 under the condition of a minimum of 100 DEG C and 1 MPa, and the NH3 generation rate reaches the highest under the condition of 400 DEG C and 1 MPa. The catalytic system is low in cost, high in stability and activity and mild in reaction condition, and can realize replacement of a noble metal catalytic system.

The application discloses an antibacterial bio-based polyamide elastomer and a preparation method thereof. The preparation method comprises the following steps: preparing a polyamide prepolymer containing a tertiary amine structure through ring-opening polymerization reaction of caprolactam, N-diethyl-aminocaprolactam and sebacic acid, then reacting with polytetramethylene ether glycol to form a polyamide-polyether block copolymer elastomer, and further modifying the polyamide-polyether block copolymer elastomer through reaction with a halogenated hydrocarbon to realize quaternary ammonium modification, so that the quaternary ammonium salt antibacterial group is stably introduced into the polymer molecular structure in a covalent manner. The bio-based polyamide elastomer prepared by the application has excellent elastic properties and persistent and stable quaternary ammonium antibacterial properties, the antibacterial components are not easy to migrate and lose, the preparation process is simple and controllable, is suitable for the field of functional materials, and has a good application prospect.

This invention discloses a method for preparing a Ni-electrode strontium titanate toroidal varistor, specifically including: 1) dry pressing strontium titanate powder into a strontium titanate toroidal varistor green ceramic sheet; 2) removing the binder from the green ceramic sheet and pre-firing it; 3) sintering the removed-bind green ceramic sheet in a reducing atmosphere of a mixed gas of equal volumes of nitrogen and hydrogen to form a ceramic substrate; 4) subjecting the ceramic substrate to an oxidation heat treatment to form an oxide film on the surface; 5) screen printing a first layer of nickel paste onto the ceramic sheet, drying it, then screen printing a second layer of silver paste, drying it, and then firing it in an air atmosphere. In this invention, Ni paste is used instead of ohmic silver paste, and sintering is performed in air, which significantly reduces the cost compared to ohmic silver paste, resulting in lower subsequent production costs; at the same time, the nickel paste can form a strong bond with the ceramic substrate, thus giving the nickel paste better adhesion to the ceramic substrate, good stability, and less tendency to delamination.

The application discloses a kind of flame-retardant sound insulation noise reduction antibacterial non-woven felt and preparation method thereof, it is related to automotive interior product technical field, including non-woven felt body, the non-woven felt body also includes substrate layer and is arranged in the antibacterial layer of substrate layer, the substrate layer is made of flame-retardant polyester staple fiber, and antibacterial layer is made of inorganic antibacterial material, preparation method also includes the substrate layer that is formed with antibacterial layer is mixed 30% with 80% polyester staple fiber and yarn is made into non-woven felt body by needle punching and / or water jet, spunlaid non-woven process of sticking.This application uses regenerated polyester as raw material, realizes the regeneration and recycling of polyester material, is friendly to environment, and can substantially reduce the cost of industry chain, make hollow structure, can effectively heat insulation sound insulation noise reduction function;Load inorganic antibacterial powder such as nano zinc oxide, nano silver, nano titanium dioxide in hollow structure, can effectively inhibit the adhesion growth of bacteria, mould, effectively prolong the service life of product.

The application discloses an antibacterial color master batch and a preparation method thereof, and belongs to the technical field of high polymer materials. The antibacterial color master batch comprises the following raw materials in parts by mass: low-density polyethylene 60-80 parts, antibacterial filler 1-8 parts, antioxidant 1-3 parts, dispersing agent 0.1-1 part and color powder 10-20 parts. The antibacterial filler is obtained through addition reaction of amino silane modified jade powder and tri(acryloxyethyl) phosphate imidazole derivative; and the tri(acryloxyethyl) phosphate imidazole derivative is obtained through addition reaction of tri(acryloxyethyl) phosphate and imidazole. The antibacterial filler is added in the antibacterial color master batch, the antibacterial filler contains jade powder, phosphate groups and imidazole rings, and the antibacterial filler is combined through multiple antibacterial mechanisms, so that the bactericidal effect is enhanced, the color master batch is endowed with good flame-retardant performance, the antibacterial filler has good compatibility with resin, and the antibacterial color master batch has persistent and stable antibacterial effect and good heat-resistant and flame-retardant performance.

The application discloses a kind of anti-pollution aids, preparation method and application.Amino silane coupling agent is slowly added to toluene solvent containing dehydrated castor oil, and reacted at 60-80 DEG C for 12-24 hours, and the oil product, i.e., the anti-pollution aid, is obtained after separation and purification.The novel anti-pollution aid prepared by the application is mainly used in silicone sealant products, has no easy migration, and can significantly improve the anti-pollution performance of sealant used outdoors.