9results about How to "Guaranteed long-term effect" patented technology

The invention provides a flame-retardant antistatic nylon fiber with a skin-core structure and a preparation method of the flame-retardant antistatic nylon fiber, and belongs to the technical field of nylon fibers. The flame-retardant antistatic nylon fiber comprises an antistatic nylon skin layer and a flame-retardant nylon core layer, the outer surface of the flame-retardant nylon core layer is coated with the antistatic nylon skin layer, the antistatic nylon skin layer comprises a nylon 6 matrix and an antistatic agent, and the antistatic agent is aniline modified zirconium phosphate; wherein the aniline modified zirconium phosphate is obtained by carrying out in-situ polymerization on aniline monomers between stripped zirconium phosphate layers. The flame-retardant antistatic nylon fiber is obtained through sheath-core composite melt spinning. According to the invention, the antistatic agent and the flame retardant are efficiently and stably introduced into the nylon matrix, and the synergistic effect of the antistatic agent and the flame retardant is realized, so that the fiber has better spinnability and mechanical property, and meanwhile, the long-term effect and durability of the function are ensured.

This invention discloses a multi-layer composite antibacterial, breathable, and hemostatic skin dressing and its preparation method, belonging to the fields of medical dressing technology and knitting technology. The dressing of this invention has a multi-layer composite structure, formed by combining a tucked-loop perforated weft-knitted fabric and a non-woven fabric. The tucked-loop perforated weft-knitted fabric, through a combination of actions such as 1-3 perforation, needle turning, shaking, and staggered needle positions, forms a regularly distributed pore structure, enabling the dressing to have zero Poisson's ratio performance within the allowable strain range. The tucked-loop perforated weft-knitted fabric is modified with carboxymethylation and grafted with copper ions, while the non-woven fabric is made from hydrophilic yarn modified with carboxymethylation and chitosan quaternary ammonium salt. The multi-layer composite structure forms a gradient pore size, utilizing the Laplace pressure difference to achieve unidirectional active drainage of exudate. The dressing of this invention combines zero Poisson's ratio fit, gradient pore size drainage, dual-layer synergistic antibacterial properties, and rapid gel hemostasis, simultaneously meeting multiple needs of wound care and showing good application prospects.

The embodiment of the present application relates to the technical field of heavy-duty coating, and discloses a marine facility corrosion protection layer regulation and control method suitable for strong salt spray environment, which comprises preparing a self-activated intermediate paint and applying it between a primer and a topcoat to form a composite protective layer; the core is that a double-triggered mineralization precursor is contained in the main agent of the self-activated intermediate paint, the precursor is composed of BF4 ‑ loaded hydrophobic modified zeolite and zinc phosphate coated water glass microparticles; when the coating is damaged, the corrosion microenvironment of the damaged area can synergistically trigger the zeolite to release BF4 ‑ to buffer the pH, at the same time trigger the dissolution of the coated water glass microparticles and release silicate ions; the released silicate ions react in situ with cations in the environment to generate mineralization products, plugging the damaged area. The present application can actively inhibit corrosion propagation and cathodic delamination after coating damage, significantly improving the long-term reliability and service life of the protective layer.

The invention relates to the technical field of polypeptide compounds, in particular to a stapled peptide compound, a preparation method and application thereof and a skin care product. The structural formula of the stapled peptide compound is shown in the specification. The polypeptide has high anti-enzymolysis stability, can significantly improve the expression ability of up-regulated fiber cells and promote the expression of collagen, and can be used in the fields of wrinkle resistance, aging resistance, repair and the like.

The application provides an antibacterial agent and a preparation method and application thereof, the antibacterial agent comprises two different repeating units; the structural formula of the antibacterial agent is or by adopting the technical scheme of the application, the antibacterial agent prepared by adopting a copolymerization method has excellent antibacterial performance and long-acting stability, and can meet the requirement of products on long-acting antibacterial performance of the antibacterial agent.

The application discloses a catalytic wet oxidation catalytic material and a preparation method thereof. The catalytic wet oxidation catalytic material takes acid modified montmorillonite loaded with copper oxide and optional nano ferrous sulfide as a matrix layer, and the outer surface of the matrix layer is wrapped with an active layer which is alumina loaded with nano ferrous sulfide; the matrix layer and the active layer are in a core-shell structure; the weight of the copper oxide accounts for 2-10% of the weight of the catalytic material, and the weight of the nano ferrous sulfide accounts for 5-20% of the weight of the catalytic material. The application further provides a preparation method of the catalytic wet oxidation catalytic material. The catalytic material has excellent catalytic degradation capacity for organic pollutants when used for treating organic wastewater.

This invention provides a sweet-scented black tea, relating to the field of fermented black tea preparation. It is obtained through a preparation process of withering, rolling, fermentation, and continuous light fermentation drying. Rolling involves cyclically rolling withered leaves using a light-heavy-light pressure method to obtain rolled leaves. Fermentation involves breaking up the rolled leaves and placing them in a fermentation chamber or fermentation machine for fermentation at a temperature of 28-30℃ and a humidity of not less than 90%, for 3 hours with stirring every hour to obtain fermented leaves. After fermentation, continuous light fermentation drying is performed to obtain the sweet-scented black tea. This black tea utilizes a specific tea-making process, namely, continuous light fermentation drying after fermentation by introducing a dry mixed gas. This achieves light fermentation during the drying process, allowing fermentation to continue throughout the entire drying process, improving the persistence of the fermentation process, avoiding excessive oxidation and fermentation of the tea sample, and ensuring the long-term and stable nature of the fermentation.

This invention relates to the field of wastewater treatment technology, specifically a method for treating high-salt organic wastewater containing polyenes and polyamines. This invention overcomes the problems of high toxicity of polyenes and polyamines, easy complexation with catalysts, and low biochemical efficiency under high-salt conditions in wastewater treatment. First, this invention utilizes copper-supported cross-linked chitosan to achieve specific complexation and sedimentation of macromolecules, significantly reducing toxicity. Then, it uses oxygen-rich vacancy titanium dioxide particle electrodes combined with ultrasound to efficiently break stubborn C-N bonds. Next, bimetallic catalytic ozone completely eliminates residual biotoxicity. Finally, iron-modified biochar provides a salt-resistant microenvironment and electron shuttle effect for salt-tolerant bacteria, achieving deep mineralization and denitrification of pollutants. This effectively solves the biochemical treatment problem under the dual stress of high salt and high toxicity, resulting in stable effluent quality.

The utility model discloses a kind of electric power cable with anti-insect bite structure, it is related to electric power cable technical field.The utility model includes outer sheath, the inner wall of outer sheath is fixedly connected with protective layer, the inner wall of protective layer is fixedly connected with wire core layer, the surface of outer sheath one side is equipped with anti-insect component, and the anti-insect component includes protective sleeve.The utility model fills anti-insect agent between the cavity between protective sleeve in anti-insect component and inner lining layer, can continuously release insect repellent component, effectively drives the insect approaching cable, simultaneously, the sawtooth strip on the surface of protective sleeve changes the physical structure of cable surface, so that insect is difficult to climb and adhere, further enhances the anti-insect effect, polyethylene agent layer in protective layer contains insect repellent component, can provide anti-insect protection from inner layer, and diatomite adsorption layer can adsorb the agent volatilized by polyethylene agent layer, prolongs agent action time, enhances the durability of anti-insect.