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Barium titanate ceramic inks for continuous ink-jet printing synthesized by mechanical mixing and sol-gel methods

机译:机械混合和溶胶-凝胶法合成的用于连续喷墨印刷的钛酸钡陶瓷油墨

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摘要

Ink-jet printing of ceramic thick films is one of low cost on-site ceramic pattern fabrication methods. It is necessary to investigate the rheological behaviour of ceramic inks and drying behaviour of droplets. Two kinds of BaTiO3 ceramic inks were prepared by mechanical mixing and sol-gel methods, respectively. The effect of preparation parameters, such as quantity of polyacrylic acid(PAA) and solid content, on physicochemical and rheologic properties of the ceramic inks was investigated. The results show that they satisfy the requirements of continuous ink-jet printing. The appearances of printed dots and single printed layers were observed by SEM. The SEM images indicate that dots printed with mixing method ink are in ring shape, and dots printed with sol-gel method ink are in pancake shape, so the printed layer surface with the latter ink is smoother. The causes of these phenomena were discussed.
机译:陶瓷厚膜的喷墨印刷是低成本现场陶瓷图案制造方法之一。有必要探讨陶瓷油墨的流变行为和液滴的干燥行为。通过机械混合和溶胶 - 凝胶方法制备两种BatiO3陶瓷油墨。研究了制备参数,例如聚丙烯酸(PAA)和固体含量的作用,对陶瓷油墨的物理化学和流变性质进行研究。结果表明,它们满足连续喷墨印刷的要求。通过SEM观察印刷点和单印刷层的外观。 SEM图像表明,用混合方法墨水印刷的点处于环形,并且用溶胶 - 凝胶法印刷的点处于煎饼形状,因此印刷层表面具有后一墨水更平稳。讨论了这些现象的原因。

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