Preparation method for synthesizing tetragonal phase self-stabilizing nano zirconium oxide spherical powder at normal pressure and low temperature

• Main Authors: LIN YUTING, LI JUNFENG, ZHU ZHIWEI, LIU YI, SONG LIANRONG, TANG LIUQUN, SHU YUMEI, LAI XUEFEI, ZHOU HAODONG, ZHANG PEICONG
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2021
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; PERFORMING OPERATIONS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention provides a preparation method for synthesizing tetragonal phase self-stabilizing nano zirconium oxide spherical powder at normal pressure and low temperature, and belongs to the technical field of nano zirconium oxide powder production. The synthesis method comprises the following steps: preparing a solution by taking inorganic zirconium salt as an initial raw material and common alkali as a precipitant, slowly titrating to form a precipitate, aging in a normal-pressure low-temperature water bath, washing and drying to obtain the nano-powder. The tetragonal phase self-stabilizingnano zirconium oxide spherical powder can be accurately obtained by controlling parameters such as component concentration, dosage, aging temperature and time and combining with polyethylene glycol with different molecular weights as a surfactant. The method has the advantages of simple process equipment, mild reaction conditions, no need of pressure-resistant equipment, low energy consumption and low cost; the obtained