6results about How to "Uniform and stable" patented technology

This invention relates to the field of food preservation technology and discloses a liquid preservative for preserving fresh walnut kernels. The preservative comprises a natural preservative, a solubilizing and stabilizing agent, and a solvent. This liquid preservative uses natural phloretin as the preservative component, combined with Tween 80 as a solubilizing and stabilizing agent and ethanol as a solvent. This effectively solves the problems of poor water and oil solubility and inadequate stability of phloretin, allowing it to be stably dispersed in the preservative system and fully exert its antioxidant and antimicrobial effects. Furthermore, the preparation method is simple and easy to implement, and the production process is safe and controllable. It is convenient to use; the preservation of fresh walnut kernels can be achieved through dilution and soaking. The diluted solution can be reused, reducing usage costs. Simultaneously, it can inhibit bacterial growth during the storage of fresh walnut kernels, delay oxidative deterioration, maintain their good appearance and quality, extend shelf life, and meet the market demand for high-quality fresh walnut kernels.

The application relates to a spinning plate technical field, in particular to a high-performance carbon fiber spinning plate, which comprises an input pipe, the outside of the input pipe is fixedly connected with a forming pipe for high-performance carbon fiber spinning, a transmission assembly and a dredging assembly are arranged between the input pipe and the forming pipe; in an initial state, the transmission assembly blocks the channel between the input pipe and the forming pipe. The lifting ring structure controlled by the elastic telescopic rod is arranged, so that the channel between the input pipe and the forming pipe can be automatically opened and closed under the action of pressure, the first transverse channel, the annular channel and the second transverse channel are utilized to realize uniform shunt conveying of the molten material, the dredging assembly is in a standby state in a normal conveying state, and the spinning process is not affected; when the spinning hole is blocked to cause pressure rise, the lifting ring continues to move upwards and drives the gear and the gear wheel to engage, so that the plug and the dredging rod drive the spinning hole to reciprocating dredge, and the blockage can be removed without stopping.

The invention discloses a preparation method and application of a rare earth magnesium alloy surface micro-arc oxidation film layer manufactured through electric arc additive manufacturing, and relates to the technical field of additive manufacturing light metal surface treatment. The preparation method comprises the following steps: manufacturing a rare earth magnesium alloy through electric arc additive manufacturing; carrying out homogenizing heat treatment on the rare earth magnesium alloy subjected to electric arc additive manufacturing; performing earlier-stage treatment; preparing an inner-layer alkaline electrolyte and an outer-layer alkaline electrolyte; and step-type voltage micro-arc oxidation treatment: taking stainless steel as a cathode, taking the magnesium alloy as an anode, sequentially putting the stainless steel and the magnesium alloy into the inner-layer alkaline electrolyte and the outer-layer alkaline electrolyte for micro-arc oxidation, cleaning and drying to obtain a micro-arc oxidation film layer on the surface of the magnesium alloy. According to the preparation method, the problems that a traditional micro-arc oxidation coating is loose, porous, prone to corrosion and short in service life are solved, the corrosion resistance of the magnesium alloy is effectively improved, the magnesium alloy is prevented from volatilizing under the high-temperature condition, the working requirement of a satellite support in the space environment is met, and the application range of the magnesium alloy is widened.

This invention provides a method for dyeing with vat dyes in an overflow dyeing machine. The use of a dye premix significantly improves dyeing performance. The cationic properties of modified cationic starch electrostatically adsorb onto fabric fibers, allowing the coated dye particles to quickly and evenly adhere to the fabric surface. This avoids localized color differences caused by uneven dye dispersion in the dye bath, and the water flow impact in overflow dyeing prevents localized dye aggregation, effectively improving dyeing uniformity and ensuring consistent dyeing results for the same batch of fabrics. The stable structure formed by the cross-linking of modified cationic starch and vat dye forms a protective film on the fabric fiber surface after color fixation, enhancing the binding stability between the dye and fiber, reducing damage to dye molecules from external factors such as light, improving the dye's lightfastness and the fabric's sunlight fastness. Its film-forming properties also make the dye and fiber bond more firmly, preventing fading.

This invention discloses a method for preparing graphene-loaded iridium-ruthenium-cobalt-copper-nickel high-entropy nanoparticles. The method includes: dissolving iridium, ruthenium, cobalt, copper, and nickel metal salts in an equiatomic ratio to prepare a metal precursor solution; simultaneously preparing a graphene oxide dispersion; and then mixing and atomizing the dispersion using a dual-feed atomization drying device to obtain a composite precursor powder. Finally, the powder is subjected to microwave reduction under inert gas protection to obtain graphene-loaded iridium-ruthenium-cobalt-copper-nickel high-entropy nanoparticles. This invention employs a synergistic process of dual-feed atomization and microwave reduction, avoiding metal ion aggregation and elemental segregation, achieving uniform and stable loading of high-entropy nanoparticles on the graphene surface. The high-entropy nanoparticles have a single-phase face-centered cubic structure with a particle size of 8 nm to 25 nm. The process is simple, efficient, low-consumption, and allows for controllable proportions. The prepared graphene-loaded iridium-ruthenium-cobalt-copper-nickel high-entropy nanoparticles can be widely used in water electrolysis, exhibiting advantages such as low overpotential and high stability, making them suitable for large-scale production and industrial applications.

The application provides a kind of para-aramid nanofiber modified polytetrafluoroethylene glass fabric high-frequency copper-clad plate and a preparation method thereof, comprising the following steps: A) using silane coupling agent to modify the glass fabric, to obtain surface-modified glass fabric;B) the surface-modified glass fabric is immersed in aramid nanofiber modified polytetrafluoroethylene impregnating solution, and after taking out, drying to obtain impregnated glass fabric;C) the impregnated glass fabric is stacked in turn, and drying, impurity removal and sintering are carried out in turn under vacuum environment, to obtain a semi-cured sheet;D) the semi-cured sheet is covered with copper foil, and vacuum hot pressing treatment is carried out, to obtain a para-aramid nanofiber modified polytetrafluoroethylene glass fabric high-frequency copper-clad plate.The para-aramid nanofiber modified polytetrafluoroethylene glass fabric high-frequency copper-clad plate of the application has excellent dielectric properties, and the water absorption, peel strength, ultra-low loss, linear thermal expansion coefficient and other properties meet the index requirements of copper-clad polytetrafluoroethylene glass fabric laminated plate for microwave circuit.