Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of nano barium titanate for electronic ceramics
The invention discloses a preparation method of nano barium titanate for electronic ceramics, which comprises the following steps: adding a dispersing agent into an oxalic acid solution, starting a stirring device and heating; adding the barium chloride solution and the titanium tetrachloride solution into the oxalic acid solution in a parallel flow manner at a constant speed, and controlling the pH value of a reaction system to be 2.0-4.0; and carrying out suction filtration and washing on the reacted mixture, and drying and roasting a filter cake to obtain the nano barium titanate. According to the method, the dispersing agent is introduced into a reaction system, reactants are added at a constant speed in a parallel flow mode, and the reaction is carried out under high-speed stirring, so that agglomeration of particles in the reaction and roasting processes is reduced, and tetragonal phase nano barium titanate with small particles and high dispersion can be prepared.
本发明公开了电子陶瓷用纳米钛酸钡的制备方法，包括：将分散剂加入草酸溶液中，启动搅拌装置和加热；将氯化钡溶液和四氯化钛溶液并流匀速加入草酸溶液中，控制反应体系的pH值为2.0‑4.0；将反应后混合物抽滤洗涤，滤饼烘干和焙烧后即得纳米钛酸钡。本发明通过在反应体系中引入分散剂，利用并流方式匀速加入反应物，并使反应在高速搅拌下进行，减少了反应和焙烧过程中颗粒的团聚，可制备出颗粒小、高分散的四方相纳米钛酸钡。
Preparation method of nano barium titanate for electronic ceramics
The invention discloses a preparation method of nano barium titanate for electronic ceramics, which comprises the following steps: adding a dispersing agent into an oxalic acid solution, starting a stirring device and heating; adding the barium chloride solution and the titanium tetrachloride solution into the oxalic acid solution in a parallel flow manner at a constant speed, and controlling the pH value of a reaction system to be 2.0-4.0; and carrying out suction filtration and washing on the reacted mixture, and drying and roasting a filter cake to obtain the nano barium titanate. According to the method, the dispersing agent is introduced into a reaction system, reactants are added at a constant speed in a parallel flow mode, and the reaction is carried out under high-speed stirring, so that agglomeration of particles in the reaction and roasting processes is reduced, and tetragonal phase nano barium titanate with small particles and high dispersion can be prepared.
本发明公开了电子陶瓷用纳米钛酸钡的制备方法，包括：将分散剂加入草酸溶液中，启动搅拌装置和加热；将氯化钡溶液和四氯化钛溶液并流匀速加入草酸溶液中，控制反应体系的pH值为2.0‑4.0；将反应后混合物抽滤洗涤，滤饼烘干和焙烧后即得纳米钛酸钡。本发明通过在反应体系中引入分散剂，利用并流方式匀速加入反应物，并使反应在高速搅拌下进行，减少了反应和焙烧过程中颗粒的团聚，可制备出颗粒小、高分散的四方相纳米钛酸钡。
Preparation method of nano barium titanate for electronic ceramics
电子陶瓷用纳米钛酸钡的制备方法
HUANG SENHONG (Autor:in)
12.12.2023
Patent
Elektronische Ressource
Chinesisch
Preparation, Structure and Characterization of Nano-Grained Barium Titanate Ceramics
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