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38 results about "Zro2 nanoparticles" patented technology

Nano zirconia/epoxy resin compound material and preparation method thereof

The present invention discloses a nano zirconia / epoxy resin compound material and a preparation method thereof, and belongs to the technical field of material preparation. The nano zirconia / epoxy resin compound material comprises zirconia nanoparticles and an epoxy resin; and the zirconia nanoparticles can be uniformly dispersed in the epoxy resin matrix in an amount of 1-10 wt% of the epoxy resin. The method comprises the following steps: (1) the zirconia nanoparticles are prepared by a sol-gel combustion method; (2) a silane coupling agent is used to conduct surface-modifying of the zirconiananoparticles; (3) the modified zirconia nanoparticles are dispersed in the epoxy resin to form a uniform nano-zirconia / epoxy resin dispersion system; and (4) a curing agent is added to conduct curing. The ZrO2 nanoparticles synthesized by improving the sol-gel method are introduced into the epoxy resin dispersion system to significantly improve the toughness of the resin after the curing and greatly improve the mechanical properties of the epoxy resin. Besides, the nano zirconia / epoxy resin compound material is simple in preparation technology, low in production costs and mild in reaction conditions, can be subjected to batch production, and can meet the special requirements for the resin materials in various fields of aerospace, civil industry, etc.
Owner:DALIAN UNIV OF TECH

Far-infrared and antistatic polyester functional fiber with good moisture absorption

The invention relates to a far-infrared and antistatic polyester functional fiber with good moisture absorption. Polyester is used as a base for the far-infrared and antistatic polyester functional fiber, carbon nano-tubes, ZrO2 nano-particles, TiO2 nano-particles, talc powder and dispersing agents are used as fillers for the far-infrared and antistatic polyester functional fiber, and the far-infrared and antistatic polyester functional fiber is prepared from the base and the fillers by means of melt spinning.
Owner:FOSHAN NANHAI DISTRICT JIAYAN UNDERWEAR CO LTD

Pt@ZrO2 photo-thermal catalyst with hollow core-shell mesoporous structure, and preparation method and application thereof

ActiveCN108579732AEasy to prepareExcellent photothermal catalytic performanceGas treatmentDispersed particle separationCatalytic oxidationHollow core
The invention discloses a Pt@ZrO2 photo-thermal catalyst with a hollow core-shell mesoporous structure, and a preparation method and an application thereof. The Pt@ZrO2 photo-thermal catalyst is prepared by embedding Pt nanoparticles into the interiors of hollow ZrO2 nanoparticles, wherein the weight percentage content of Pt is 0.1% to 0.5% on the basis that the weight percentage content of the catalyst is 100%. The preparation method comprises the following steps: (1) dissolving H2PtCl6.6H2O into purified water, adding sodium citrate as a reducing agent, then adding a surfactant, carrying outrefluxing at a high temperature, and carrying out cooling; (2) adding tetraethoxysilane and ammonia water, carrying out uniform mixing under stirring so as to form a suspension, carrying out centrifuging and washing, and carrying out redispersing in ethanol for subsequent usage; (3) adding zirconium n-butoxide to coat zirconium dioxide, and carrying out stirring, aging, centrifuging, washing anddrying; and (4) carrying out etching with an excess NaOH solution, and carrying out centrifuging, washing, drying and calcining. The Pt@ZrO2 photo-thermal catalyst provided by the invention has the following advantages: the preparation method is simple; photo-thermal catalytic oxidation of an organic pollutant is realized under the condition of 100 to 200 DEG C; the Pt@ZrO2 photo-thermal catalystremains basically unchanged activity after continuous and cyclic application for 30 times or above; and the Pt@ZrO2 photo-thermal catalyst has the characteristics of high efficiency, stability, recyclability and easy recovery.
Owner:SUN YAT SEN UNIV

Chemical coating material with resistance to geothermal water corrosion and preparation method of chemical coating material

The invention relates to a chemical coating material with resistance to geothermal water corrosion and a preparation method of the chemical coating material, and belongs to the technical field of newenergy materials. Nano zirconium dioxide is added to a coating solution, so that a three-dimensional network skeleton is formed between Ni-P particles and ZrO2 nanoparticles, the Ni-P particles are filled with the ZrO2 nanoparticles, a coating is subjected to crystallization and Ni and P desolventizing decomposition under the action of heat treatment, P atoms diffuse and are subjected to lattice distortion, and Ni and intermetallic compounds are formed. Meanwhile, the electrode potential of Ni is higher than the electrode potential of Cu, a uniform film is formed on the surface of the coating,and the passivation film can effectively block the corrosion process and can also significantly reduce porosity of the coating grain refinement coating, effectively inhibit contact between a corrosion medium and a substrate, and improve corrosion resistance. Phosphate has the function of a buffer agent and promotes adsorption of a salt film protective layer to form a uniform film layer, oxalic acid can activate the surface of the steel substrate, borax can retard corrosion of the coating from the external environment, and corrosion resistance of the coating is enhanced.
Owner:王召惠

Method for detecting luteolin by combining solid-phase extraction and electrochemical sensor

The invention discloses a method for detecting luteolin by combining solid-phase extraction and an electrochemical sensor, and belongs to the technical field of analytical chemistry. According to themethod, ZrO2 nanoparticle and chitosan doped graphene aerogel modified silica gel is used as a solid phase extraction column of an extraction material to extract luteolin in a to-be-detected sample, and ZrO2 nanoparticle and chitosan doped graphene aerogel modified glassy carbon electrode is used as an electrochemical sensor platform to detect the luteolin in the extract liquor. According to the invention, the ZrO2 nanoparticle and chitosan doped graphene aerogel is used as electrode materials, and the ZrO2 nanoparticle and chitosan doped graphene aerogel modified silica gel is used as the extraction material, so that the adsorption selectivity is high, and detection signal amplification is realized; the preparation method is simple and easy to implement and relatively low in cost; and thesolid-phase extraction and the electrochemical sensor are combined, so that the interference of a sample matrix is avoided, the detection sensitivity and accuracy of the method are improved, and theoperation is simple.
Owner:QINGDAO AGRI UNIV

ZrO2 nanoparticle modified three-dimensional graphene material and application thereof in organophosphorus pesticide detection

The invention discloses a ZrO2 nanoparticle modified three-dimensional graphene material and application thereof in organophosphorus pesticide detection, and belongs to the technical field of analytical chemistry. The ZrO2 nanoparticle modified three-dimensional graphene material disclosed by the invention is a three-dimensional graphene material constructed by taking a metal net as a matrix, bonding poly(diallyldimethylammonium chloride) reinforced graphene oxide aerogel and depositing ZrO2 nanoparticles on the surface of the graphene aerogel; a solid-phase extraction column prepared by taking the material as a filling material can realize high-efficiency extraction of the organophosphorus pesticide, and then the organophosphorus pesticide is analyzed and detected by using high performance liquid chromatography. The method for detecting the organophosphorus pesticide by adopting the solid-phase extraction column is wide in linear range, low in detection limit and high in sensitivity, can be used for enriching and detecting the organophosphorus pesticide in vegetables, and not only has relatively strong matrix anti-interference capability, but also has good enriching and purifying performance and a wide application prospect.
Owner:QINGDAO AGRI UNIV

A kind of nano-zirconia/epoxy resin composite material and preparation method thereof

The present invention discloses a nano zirconia / epoxy resin compound material and a preparation method thereof, and belongs to the technical field of material preparation. The nano zirconia / epoxy resin compound material comprises zirconia nanoparticles and an epoxy resin; and the zirconia nanoparticles can be uniformly dispersed in the epoxy resin matrix in an amount of 1-10 wt% of the epoxy resin. The method comprises the following steps: (1) the zirconia nanoparticles are prepared by a sol-gel combustion method; (2) a silane coupling agent is used to conduct surface-modifying of the zirconiananoparticles; (3) the modified zirconia nanoparticles are dispersed in the epoxy resin to form a uniform nano-zirconia / epoxy resin dispersion system; and (4) a curing agent is added to conduct curing. The ZrO2 nanoparticles synthesized by improving the sol-gel method are introduced into the epoxy resin dispersion system to significantly improve the toughness of the resin after the curing and greatly improve the mechanical properties of the epoxy resin. Besides, the nano zirconia / epoxy resin compound material is simple in preparation technology, low in production costs and mild in reaction conditions, can be subjected to batch production, and can meet the special requirements for the resin materials in various fields of aerospace, civil industry, etc.
Owner:DALIAN UNIV OF TECH
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