7results about How to "No settlement" patented technology

This invention relates to an insulating oil and an oil-paper insulation system containing superhydrophobic nanoparticles, as well as their preparation method and application, belonging to the field of electrical equipment insulation technology. This invention provides an insulating oil containing superhydrophobic nanoparticles, wherein the superhydrophobic nanoparticles are silane-modified nanoparticles, and the nanoparticles include at least one of SiO2, TiO2, and h-BN; the insulating oil includes at least one of mineral insulating oil, synthetic insulating oil, and natural ester insulating oil. This invention achieves the superhydrophobicity of the nanoparticles and good compatibility with the oil phase through silane modification. Adding silane-modified nanoparticles to the insulating oil effectively reduces the water content of the insulating oil and optimizes the interfacial performance of the oil-paper. Combined with the low-temperature, high-efficiency, and uniform rapid impregnation process of this invention, the overall electrical performance and service life of the oil-paper insulation system are significantly improved.

This invention relates to the field of pesticide technology, specifically to a fungicidal composition, its preparation method, and its uses. The invention provides a fungicidal composition comprising an active ingredient, a first functional component, a second functional component, and an adjuvant; the active ingredient comprises fluthiazopyrone and cyazofamid; the first functional component comprises at least one selected from silica, titanium dioxide, and zinc oxide; the second functional component comprises at least one selected from citric acid, acetic acid, benzoic acid, urea, and triethanolamine. By introducing specific first and second functional components, this invention synergistically works with the active ingredient, effectively overcoming the key defects of fluthiazopyrone's easy photodegradation and cyazofamid's easy hydrolysis, thus improving the stability of the compound formulation; while ensuring the excellent control efficacy and resistance management advantages of both against oomycete diseases such as grape downy mildew, it extends the duration of action and weather resistance of the agent, providing a more stable, efficient, and long-lasting solution for field application.

The invention discloses reactive dye ink for digital printing and a preparation method, and particularly relates to the field of fine chemical engineering and textile printing and dyeing. Comprising the following components in percentage by weight: 8wt%-25wt% of reactive dye, 2wt%-8wt% of a polymeric dispersant, 0.5 wt%-3wt% of an inorganic dispersant, 1wt%-4wt% of an organic-inorganic composite complexing agent, 0.5 wt%-5wt% of a viscosity modifier, 0.1 wt%-2wt% of a surfactant, 0.3 wt%-1.5 wt% of a pH buffering agent, 0.05 wt%-0.8 wt% of a preservative and the balance of deionized water. Through a dual stabilization mechanism of macromolecular steric hindrance and a nanoparticle rigid barrier and deep removal of destructive metal ions by a composite complexing agent, the particle size growth rate of the ink after accelerated aging for 30 days at 40 DEG C is lower than 5%, the ink can be stably stored for more than 12 months without sedimentation at normal temperature, and by combining a pure ink system, the stability of the ink is improved. And the fixation rate on the cotton fabric exceeds 85%, the color fastness to washing is greater than or equal to grade 4, the color fastness to dry / wet rubbing is greater than or equal to grade 4, and the color fastness to light is greater than or equal to grade 5.

This application relates to the field of ceramic materials technology, and discloses a heat-resistant ceramic glaze with high thermal shock resistance and low expansion, and its preparation method. The glaze comprises 70.0–80.0 parts of base powder, 20.0–30.0 parts of β-spodumene clinker, 50.0–60.0 parts of added water, 0.2–0.4 parts of sodium polyacrylate, 0.1–0.3 parts of sodium carboxymethyl cellulose, and 0.05–0.15 parts of calcium acetate. The base powder contains inorganic raw materials such as calcium borate. Within the system, a three-dimensional yield network structure is formed by the cross-linking of the molecular chains of sodium carboxymethyl cellulose and calcium ions ionized from calcium acetate. During preparation, the base powder and β-spodumene clinker are sequentially fed into a ball mill for grinding, and a cross-linking agent is added before stopping the mill. This invention utilizes the three-dimensional yield network structure to stably suspend large-particle-size β-spodumene clinker. When the ceramic product experiences drastic temperature changes, the low-expansion crystal remnants retained internally buffer thermal stress concentration, thereby effectively preventing glaze surface cracking.

This invention discloses a method for preparing a high-conductivity organic silver paste for thermal printheads, which is prepared from the following raw materials by mass percentage: 78-84% modified composite silver powder, 2.5-4.5% low-temperature composite glass powder, 11-17% cross-linked organic carrier, and 0.6-1.2% functional additives. This method for preparing a high-conductivity organic silver paste for thermal printheads uses spherical, flake, and nano-sized three-level composite modified silver powder. The powder is densely packed in multiple levels to construct a continuous low-resistance conductive path. The finished silver paste has high conductivity after curing and low heat loss during power-on, making it suitable for high-frequency stable conduction of thermal printheads. The silver powder is hydrophobically modified, so there is no sedimentation or oxidation agglomeration during long-term storage, and the paste batch performance is stable.

The invention belongs to the technical field of single crystal materials, and particularly relates to a SrxBi2Se3 topological superconducting single crystal material and a space preparation method and application thereof. The size of the SrxBi2Se3 topological superconducting single crystal material is larger than or equal to 10 mm * 8 mm * 0.5 mm, the superconducting transition temperature of the SrxBi2Se3 topological superconducting single crystal material is larger than or equal to 3 K, and the doping amount of Sr in the SrxBi2Se3 topological superconducting single crystal material is larger than or equal to 70% of the actual using amount of Sr. Wherein x is more than 0 and less than or equal to 0.3. The preparation method of the SrxBi2Se3 topological superconducting single crystal material has the beneficial effects that the SrxBi2Se3 topological superconducting single crystal material is prepared in a microgravity environment, ideal conditions without convection and sedimentation are provided, solute segregation can be effectively inhibited, uniform nucleation and growth are promoted, and proper conditions are provided for growth of Sr-doped Bi2Se3 single crystals. The microgravity environment is based on a space station experiment platform, and efficient and high-quality space preparation of the SrxBi2Se3 single crystal is achieved.

The application provides a fire-retardant adhesive, a fire-retardant double-sided adhesive tape for bonding porous rough materials and a preparation method of the fire-retardant double-sided adhesive tape. The bonding layer of the fire-retardant double-sided adhesive tape is made of the fire-retardant adhesive. The fire-retardant adhesive comprises 100 parts of solvent type acrylate glue, 20-40 parts of a fire retardant, 2-6 parts of tackifying resin, 0.4-1 part of a curing crosslinking agent and 20-30 parts of a second solvent in terms of weight. The fire retardant comprises a liquid fire retardant and a solid fire retardant. The liquid fire retardant is an organic phosphorus-nitrogen ionic liquid fire retardant. The solid fire retardant is ammonium polyphosphate. The specific type of fire retardant is compounded with the solvent type acrylate glue, and the bonding performance of the adhesive tape is not affected. The synergistic fire-retardant mechanism of the condensed phase and the gas phase is realized, the adhesive layer has excellent fire-retardant performance, and the adhesive tape can be applied to bonding scenes such as automobile interior part assembly and electronic product cushion fixing.