5results about How to "Excellent peelability" patented technology

This invention relates to the field of wastewater treatment technology, and in particular to a microfiltration wastewater treatment device for industrial wastewater turbidity removal. The device includes a treatment cylinder and an L-shaped wastewater pipe installed at the top of the treatment cylinder. A swinging filter assembly is installed at the top inner part of the treatment cylinder. The swinging filter assembly shakes and filters the wastewater. The swinging filter cartridge within the swinging filter assembly swings and moves the filtered impurities. During the swinging process, the swinging filter assembly throws out the wastewater while simultaneously causing the filtered impurities to flow. This invention achieves dynamic separation through swinging filtration, combined with real-time self-cleaning via rotating scraping. The filter cartridge is automatically cleaned by a torsional brush assembly. A fixed filter cartridge with a blocking filter assembly effectively blocks filtration and also possesses a self-cleaning function. This allows for the simultaneous and continuous execution of filtration and cleaning processes, significantly improving wastewater turbidity removal efficiency and the stability and durability of the equipment operation.

This application discloses an aqueous stripping solution, its preparation method, and its application, belonging to the field of photoresist technology. The aqueous stripping solution comprises amines, alcohol ether solvents, polyols, surfactants, and metal resists. The amines swell the photoresist, the alcohol ether solvents have good permeability, significantly reducing the adhesion between the photoresist and the substrate, and the surfactants reduce the surface tension at the photoresist-substrate interface. Combining the amines, alcohol ether solvents, and surfactants enhances the penetration efficiency of the stripping solution into the photoresist, accelerates the photoresist stripping rate, and thus improves the photoresist stripping effect, thereby increasing product yield. Furthermore, the polyols can form hydrogen bonds with hydrogen atoms in water molecules, binding water molecules, reducing water evaporation, and maintaining high stability of the stripping solution during heating, extending its service life. In addition, the metal resists reduce damage to the metal substrate caused by the stripping solution.

The application discloses a method and device for laser stripping silicon carbide ingots. First, the laser focal point is aimed at a preset plane inside the ingot, and the laser is processed on the preset plane in a set direction and scanning line interval to form a plurality of explosion points on the plane to prepare a modified layer. Then, the modified layer is irradiated and heated by a xenon lamp. After the heating is completed, a pulling force opposite in direction and perpendicular to the end surface is applied to the two ends of the ingot to strip the wafer from the silicon carbide ingot. The application greatly reduces the pulling stress required for stripping, improves the stability of stripping, and at the same time, makes the wafer form a relatively flat stripping surface, reduces the roughness of the stripping surface, reduces the material loss of subsequent grinding, improves the silicon carbide stripping efficiency, and reduces the production cost.

The application discloses graphene, a transparent conductive film and a preparation method and application thereof. The preparation method of the graphene comprises the following steps: taking a gelled carboxymethyl cellulose sodium-metal salt aqueous solution as an electrolyte, taking a graphite electrode as a cathode, and jointly constructing an electrochemical reaction system with an anode, wherein the electrolyte is formed by mixing a metal salt and carboxymethyl cellulose sodium, wetting treatment by an alcohol substance, and mixing with water; and direct current is passed through the electrochemical reaction system to perform electrolysis, a constant voltage is applied to graphite to perform stripping, and graphene is obtained. The method for preparing high-quality graphene based on the electrochemical method has the advantages of high efficiency and simple operation, and the transparent conductive film prepared by the method has good advantages in light transmission performance and conductive performance.

This invention relates to a multi-stage filtration treatment device for acidified wastewater, comprising a housing, a cover plate mounted on the housing, and multiple filter cartridges disposed within the housing. The housing is equipped with a swing cleaning mechanism to prevent clogging of the filter cartridges. The swing cleaning mechanism includes a left-right swing assembly and a brush assembly driven by the left-right swing assembly to perform reciprocating swinging motion. This invention uses two counter-rotating actuating plates in the left-right swing assembly to alternately drive a triangular mating plate with actuating groove to swing. This triangular mating plate directly drives the brush assembly, which is equipped with bristles, to perform horizontal reciprocating motion, causing the bristles to continuously mechanically scrub the surface of the filter plate. This process is completely automatic and can promptly remove sticky impurities adhering to the filter plate, thereby avoiding the problems of filter pore clogging and increased filtration resistance caused by long-term accumulation of impurities, and ensuring stable filtration flux.