8results about How to "Address process complexity" patented technology

The present invention provides a lightweight front plate of a photovoltaic module and a preparation method and application thereof, belonging to the technical field of functional materials. The present invention mixes an acrylic resin, a curing agent and an auxiliary agent for extrusion, mixes the obtained extruded resin with an organic flash powder for lamination, and obtains the lightweight front plate of the photovoltaic module. The present invention mixes an acrylic resin, a curing agent and an auxiliary agent for extrusion, and the obtained extruded resin is used as a base material, which is convenient for forming a lightweight front plate with a variety of colors by adding different organic flash powders, which can not only provide a richer and more diverse selection of photovoltaic module appearance colors, but also the present invention adopts lamination technology to prepare the lightweight front plate of the photovoltaic module, which can change the appearance color of the photovoltaic module without affecting the light transmittance and photoelectric conversion efficiency of the photovoltaic module, and can also make the lightweight front plate of the photovoltaic module have good stability and weather resistance, thereby ensuring the stability and reliability of the photovoltaic module during long-term use.

The invention belongs to the technical field of flow batteries, and particularly relates to a corrosion-resistant integrated composite bipolar plate for a flow battery and a preparation method of the corrosion-resistant integrated composite bipolar plate for the flow battery, and the preparation method comprises the following steps: preparing materials in a reaction area, preparing materials in a corrosion-resistant area, crushing and granulating, melting and extruding, co-extruding and molding, calendaring and molding and the like. Through a co-extrusion technology, integrated manufacturing of corrosion prevention of two sides and electric conduction in the middle of the bipolar plate is realized, so that the process complexity of an electric pile and unstable structural performance of the bipolar plate caused by traditional splicing or bonding are greatly reduced, the production process of the electric pile of the flow battery is simplified, the stability of the flow battery is improved, and the service life of the flow battery is prolonged. The problem of electrolyte mixing caused by electrochemical corrosion of the bipolar plate in the flow channel area of the flow guide frame is avoided, the product quality of the bipolar plate is improved, and the service life of the bipolar plate is prolonged.

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 invention discloses a preparation method of a wood vinegar substitute, and belongs to the technical field of biomass products. The preparation method of the pyroligneous liquor substitute provided by the invention comprises the following steps: pretreating straw powder with hydrochloric acid to obtain pretreated straw powder; and mixing the pretreated straw powder, an oxidizing agent aqueous solution and water, carrying out hydrothermal reaction, separating a solid phase from a liquid phase, and repeatedly freezing and thawing the obtained liquid phase to obtain the wood vinegar substitute. The straw powder is pretreated with hydrochloric acid, the overall crystallinity of the straw powder is reduced, the content of lignin, cellulose and hemicelluloses in original straw is changed, the straw powder can be decomposed into organic acid and other target substances at a low temperature, and the straw powder can be decomposed into organic acid and other target substances by combining with the oxidizing agent. The decomposition temperature of the lignin is selectively reduced, the decomposition of the straw powder at a relatively low temperature is finally realized, and the pyroligneous liquor substitute with relatively high acid content is obtained.

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 sound heads, and provides a moving-coil sound head and a moving-coil microphone applying the same, the moving-coil sound head comprises a front acoustic cavity, a moving-coil sound head sound-emitting body and a connecting device, the inner wall of the front acoustic cavity is provided with a first step and a second step which are in a circular truncated cone shape, and the first step is provided with a first opening; a second opening on the same side as the first opening is formed in the second step; the moving-coil voice head sounding body comprises a moving-coil voice head intermediate and a rear acoustic cavity, a piezoelectric ceramic piece is installed at the top of the moving-coil voice head intermediate, a connecting PCB is arranged at the bottom of the moving-coil voice head intermediate, the piezoelectric ceramic piece is matched with the first step, and the top of the moving-coil voice head intermediate is matched with the second step; the connecting device is laid close to the outer surface of the moving coil voice head intermediate, one end is connected with the PCB, the other end is connected with the piezoelectric ceramic piece, and the connecting device located on the outer surface of the piezoelectric ceramic piece is matched with the first opening and the second opening. According to the utility model, the frequency response range is wider, the sound is clearer and finer, the structure is simple, convenience and practicability are realized, and the sound quality effect is better.

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.