4results about How to "Address process complexity" patented technology

This invention discloses a method for preparing a urushiol-based hydrophobic coating with a micro / nano rough structure. The method uses urushiol and organic polyamines as main raw materials, and involves sequential prepolymerization and precipitation polymerization to construct a highly hydrophobic micro / nano rough structure surface coating on different substrates. This method utilizes renewable natural polymer materials as main raw materials, achieving highly hydrophobic modification of various materials without the need for chemical modifications such as silane modifiers. It is environmentally friendly, versatile, and allows for large-scale construction of micro / nano rough structure hydrophobic coatings using simple processes and mild conditions, significantly improving the efficiency of large-scale preparation of such functional coatings. This effectively solves the problems of low efficiency and high cost in existing methods for large-scale preparation of micro / nano rough structure hydrophobic surfaces.

The application discloses a kind of flame-retardant sodium-ion battery electrolyte and preparation method thereof, it is related to electrolyte preparation technical field, including precursor preparation, basic electrolyte preparation and flame-retardant electrolyte preparation.The application is by phosphorus-nitrogen-silicon hybrid oligomer precursor is added to the basic electrolyte that is composed of sulfone solvent, fluorinated ester and sodium salt, in vacuum condition is dispersed with gradient temperature ripening under low temperature high shear, it solves the problem that bulk phase flame-retardant additive and electrolyte compatibility is poor, easy to aggregate and settle and causes the problem of ion conductivity drop;By using formation stage electrode potential drive precursor in-situ electrochemical polymerization on positive and negative electrode surface, phosphorus-nitrogen-silicon hybrid nanometer interface film with ion conductivity and thermal response ceramicization characteristics is formed, solves the existing flame retardant only at high temperature decomposition and plays the role of passive lag problem and bulk phase flame-retardant and electrochemical performance inadaptable contradiction.

The application belongs to the field of advanced functional materials, and particularly relates to a curable polyimide composition, a polyimide adhesive film and a preparation method and use. The polyimide adhesive film is composed of polyimide adhesive containing unsaturated double bonds which can be crosslinked by microwave and is compounded on the surface of a polyimide film treated by ozone or supercritical CO2. The curing degree of the polyimide adhesive film can reach more than 99% under the treatment of 250-400W microwave power for 2-3 min, and the adhesive film can form extremely high adhesion between glass or copper foil. The polyimide adhesive film has the characteristics of easy curing, no volatilization, low shrinkage, high adhesion, etc., and has a wide application prospect in the fields of semiconductor packaging, flexible copper-clad plate, etc.

The invention relates to the technical field of valve control meter shell manufacturing, in particular to a stainless steel valve control meter shell and a manufacturing method thereof, and the method comprises the steps of manufacturing a metering cavity pipe section, a ball valve cavity pipe section, a water inlet pipe, a connecting pipe and a water outlet pipe and welding to obtain the stainless steel valve control meter shell. Compared with a valve control meter shell manufactured by using an integral casting process in the prior art, a forming mold is not used, the problems of high cost and short service life caused by the forming mold are solved, the problems of long production period and long machining time are also solved, the cost is reduced, and the finally formed valve control meter shell is small in mass and does not have the defects of sand holes, air holes and the like. Compared with a valve control meter shell manufactured by using an integral welding process in the prior art, the valve control meter shell has the advantages that the machining procedures of blanking, deep drawing, chambering, rotary cutting and the like are not needed, and the selected existing pipe fitting is hollow, so that parts such as a valve rod matching middle hole, a valve mounting hole and the like do not need to be machined, and the problems of complex process and more cutting wastes caused by a machining process are solved.