5results about How to "Both hardness" patented technology

The invention relates to the technical field of water-based building coatings, and discloses a high-adhesion putty-free micro pottery stone art paint and a preparation process thereof, and the art paint is prepared from deionized water, multifunctional amino alcohol, polyether modified phosphate, calcined ceramic microbeads, a carboxyl acrylate emulsion, nano silica sol, an ammonium zirconium carbonate solution and other raw materials. According to the invention, a pH responsive latent curing system is constructed by utilizing the coordination shielding effect of multifunctional amino alcohol and zirconium ions, so that the contradiction between the storage stability and rapid curing of a single-component coating is solved; through the physical permeation of the nano silica sol and the chemical bonding of phosphate-zirconium-calcium ions, the super-strong anchoring of the coating on a cement base material is realized; and in cooperation with an interpenetrating network structure formed by ceramic microbeads with specific gradation, internal stress is effectively dissipated. The product disclosed by the invention can be directly and thickly coated on a cement base surface without cracking, has excellent water resistance, scrubbing resistance and high simulation texture, is simplified in process, and is environment-friendly and efficient.

The application belongs to the technical field of paint, and particularly relates to high stone impact resistance and free grinding water-based intermediate coating for buses, and a preparation method and application thereof. The high stone impact resistance and free grinding water-based intermediate coating is combined by component A resin paint and component B curing agent according to a weight ratio of 5:1. The component A resin paint comprises the following components: hydroxyl acrylic resin, deionized water, dispersing agent, anti-settling agent, defoaming agent, leveling agent, wetting agent, titanium white powder, talcum powder, flatting powder, thickening agent and solvent A. The component B curing agent comprises the following components: curing agent and solvent B. Compared with the prior art, the application solves the problem that the intermediate coating of the automobile coating in the prior art still needs to be polished during the construction process, thereby leading to complex steps and dependence on the experience of workers. The intermediate coating of the scheme has excellent performance and realizes free polishing operation during the construction process.

This invention discloses a galvanized steel sheet with good adhesion to an electron beam-cured coating, comprising a galvanized steel sheet, at least one surface of which has a composite coating. The composite coating contains the following effective components: an aqueous cationic polymer resin A, comprising 45-75 parts by weight; a compounded organosilane coupling agent B, comprising 15-45 parts by weight; the compounded organosilane coupling agent B is formed by the mixed hydrolysis and condensation of at least one organosilane coupling agent B1 containing an epoxy functional group and at least one organosilane coupling agent B2 containing an amino functional group; a silane coupling agent C containing unsaturated bonds, comprising 3-10 parts by weight; a water-soluble fluorine-containing compound D, wherein the fluorine element comprises 1.5-5 parts by weight; and a water-soluble phosphorus-containing compound E, wherein the phosphorus element comprises 2-5 parts by weight. This invention also discloses a surface treatment agent for galvanized steel sheets and a method for manufacturing a galvanized steel sheet with good adhesion to an electron beam-cured coating.

The invention relates to the technical field of vacuum pumps, and particularly discloses a vacuum pump rotor surface treatment method which is characterized by comprising the following steps: substrate pretreatment including ultrasonic cleaning, micro-arc oxidation treatment and low-temperature plasma treatment; modification treatment is conducted, specifically, the PTFE nano particles are modified; chemical nickel plating treatment: putting the rotor substrate subjected to substrate pretreatment into a chemical nickel plating solution, and adding modified PTFE (Polytetrafluoroethylene) nanoparticles to form a composite coating on the surface of the rotor substrate; curing: heating and curing the rotor substrate subjected to the chemical nickel plating treatment; and polishing: carrying out polishing treatment on the heated and cured rotor base body. The binding force of the coating and the metal matrix can be improved, and the problem of peeling during high-speed operation is solved.

The utility model discloses a large-deformation multidirectional limiting inhaul cable device for a bridge, which comprises an anchoring component, a limiting component and an inhaul cable, and the limiting component is divided into an upper limiting component and a lower limiting component; the anchoring assembly is divided into an upper anchoring assembly and a lower anchoring assembly; the inhaul cable is mainly made of a novel negative Poisson's ratio (NPR) material. The anchoring assembly is pre-buried in a bridge structure at a bridge support and is used for mounting the limiting assembly; the interior of the limiting assembly is of a pottery-pot-shaped variable-diameter cavity structure, so that the two ends of the inhaul cable can be fixedly connected to the limiting assembly correspondingly, and therefore the whole inhaul cable device is formed, the device and a bridge support have the mutual synergistic effect, displacement deformation of a bridge is limited in multiple angles and multiple directions, the earthquake disaster resisting capacity of the whole bridge is improved, and the service life of the bridge is prolonged. And in addition, the device in the scheme is simple and clear in structural design, and installation, disassembly, maintenance and the like of the device in the scheme can be completed with relatively short time cost and relatively low economic cost.