6 results about "Zinc molybdate" patented technology

The present application relates to the technical field of copper clad laminates, and discloses a copper clad laminate, a resin composition for the copper clad laminate, and spherical silicon and a preparation method therefor. The spherical silicon of the present application is composed of spherical silicon dioxide and zinc molybdate particles dispersedly grown on the surface of the spherical silicon dioxide in situ and has a diameter of less than 10 microns and a D50 of 0.6-6 microns. The content of zinc molybdate per unit area on the surface of the spherical silicon dioxide is 0.03-1 g / m2, and the size of the zinc molybdate particles is less than or equal to 400 nm. The preparation method comprises: enabling spherical silicon dioxide to come into contact with / be mixed with a soluble molybdate and a zinc salt in an aqueous reaction system; and reacting the soluble molybdate with the zinc salt in situ on the surface of the spherical silicon dioxide, so as to form spherical silicon chemically coated with zinc molybdate particles. In the present application, by directly synthesizing the zinc molybdate in situ on the surface of the spherical silicon dioxide by means of a hydrothermal method, the structural morphology of the obtained spherical silicon and the size of the zinc molybdate particles can be effectively controlled, thereby ensuring that the wear of a drill bit during the drilling of the copper clad laminate is effectively mitigated.

This invention provides a durable fire-retardant coating for steel structures, its preparation method, and its application, belonging to the field of fire-retardant coating technology. The coating uses a water-based organosilicon-modified acrylic resin emulsion as the base material, combined with flame-retardant components such as ammonium polyphosphate and melamine, as well as functional components such as modified nano-silica, modified carbon nanotubes, self-healing microcapsules, and zinc molybdate, and is prepared through a specific mixing and dispersion process. This invention achieves integrated fire resistance, corrosion protection, and self-healing functions through the synergistic effect of its components. It possesses advantages such as high fire resistance limit, good char layer stability, smoke suppression and environmental friendliness, strong corrosion resistance, and rapid self-healing response. Furthermore, it is convenient to apply and forms a uniform film, meeting the protection needs of steel structures in various scenarios, including conventional, humid, high-temperature, and high-risk environments. It solves the problems of existing coatings having single functions and unbalanced performance, demonstrating significant practicality and promotional value.

This invention relates to the field of coating technology, specifically to a corrosion-resistant coating for color-coated aluminum sheets and strips and its preparation method. The coating comprises the following components by weight: 45-60 parts modified fluorocarbon resin emulsion, 18-28 parts composite modified anti-corrosion pigment, 8-12 parts nano-zirconia dispersion, 1-2 parts silane coupling agent, 0.5-1.5 parts anti-corrosion additive, 0.2-0.5 parts leveling agent, 0.3-0.8 parts dispersant, 0.1-0.3 parts defoamer, 10-20 parts deionized water, and 6-10 parts water-based isocyanate curing agent. The composite modified anti-corrosion pigment comprises zinc phosphate and modified zinc molybdate in a mass ratio of 6-7:3. Through reasonable formulation and synergistic effects, this corrosion-resistant coating improves the coating's corrosion resistance, adhesion, rheological properties, and long-term stability.

This invention provides a method for preparing zinc molybdate and its application in preventing metal corrosion, relating to the field of chemical technology. For the first time, this invention utilizes sodium dodecylbenzenesulfonate (SDBS), polyoxyethylene-polyoxypropylene block copolymer (F-68), and polyacrylamide (PAM) to prepare novel zinc molybdates with different morphologies via a hydrothermal method. In this invention, the aforementioned novel zinc molybdate is introduced as a functional filler into epoxy resin to prepare a composite anti-corrosion coating. It was found that the prepared anti-corrosion coating exhibits superior long-term anti-corrosion performance, providing a theoretical basis and experimental foundation for developing efficient and controllable zinc molybdate-based anti-corrosion fillers.

This utility model discloses a visible light catalytic wastewater treatment device, relating to the field of wastewater treatment technology. It includes: a reaction vessel containing a photocatalyst for degrading organic matter in wastewater; a stirrer within the reaction vessel for mixing the wastewater and the visible light photocatalyst; an organic wastewater pipe connected to the reaction vessel; an industrial lamp located above the reaction vessel to provide visible light and activate the photocatalyst; and a suspension separator connected to the reaction vessel for separating the degraded suspension and returning the resulting solid-liquid mixture to the reaction vessel for recycling. This wastewater treatment device utilizes the visible light catalytic properties of a zinc tungstate and zinc molybdate composite material, solving the problems of low degradation efficiency and reliance on ultraviolet light in traditional technologies, thus reducing secondary pollution. Furthermore, the device adopts a modular component design, facilitating rapid disassembly, expansion, and maintenance, adapting to different scales of wastewater treatment needs.

The application discloses a kind of self-repairing inorganic resin anticorrosive paint and preparation method, belong to anticorrosive paint technical field.The paint includes inorganic resin 30-50%, nano-grade silicon dioxide 5-10%, zinc phosphomolybdate 10-20%, functional filler 20-30% by mass percentage, and the balance is deionized water.Preparation method includes high-speed dispersion, step-by-step stirring, temperature control and other steps, without adding zinc powder, solve the environmental protection and cost problem caused by zinc powder;Through multi-step preparation process optimization, realize the uniform dispersion of each component, improve the film compactness of coating, can quickly form self-repairing protective film when corroded, cost-effective, strong practicality.