Articles
  • Effects of polyacrylic acid-based binder on electrical property of potassium-sodium niobate ceramic

  • Jinjin Lina, Jiaxin Duana, Jiahao Huanga, Ya Yanga, Mingxing Anb, Zhiming Gaoc and Yuanyu Wanga,b,c,*

  • aCollege of Materials and Metallurgy, Guizhou University, Guizhou 550025, China
    bYasusa Chemical Co., Ltd., Jiaxing, Zhejiang 314200, China
    cSchool of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The Binder is of importance in the ceramic industry and polyacrylic acid (PAA) is a promising binder due to its low cost, and enhancement effect on the density and properties of the potassium-sodium niobate (KNN) ceramic. In this work, alkalescent, acidulous, and neutral PAA-based binders are investigated. The results suggest that the alkalescent and neutral PAA-based binders are conducive to the ceramic density. Except for the as-calcinated powder granulated by PAA-HPMC and PAA-C=CH2, the values of median particle diameter (D50) for other powders are around 0.771 μm-0.863 μm, and corresponding cumulative distribution of D50 within the variation range of 50.05%-57.62% is detected. On the whole, the KNN ceramic synthesized by the AcPAA possesses the best combination properties with piezoelectric constant d33~108 pC/N, and the breakdown strength Eb~3.93 kV/cm is obtained for PAA-DM, which is ascribed to the synergistic effect of granulated grain size and thermal behavior of the binders.


Keywords: Potassium-sodium niobate, Polyacrylic acid, Binder, Electrical property.

This Article

  • 2024; 25(5): 751-759

    Published on Oct 31, 2024

  • 10.36410/jcpr.2024.25.5.751
  • Received on Apr 24, 2024
  • Revised on Jun 3, 2024
  • Accepted on Jul 5, 2024

Correspondence to

  • Yuanyu Wang

  • aCollege of Materials and Metallurgy, Guizhou University, Guizhou 550025, China
    bYasusa Chemical Co., Ltd., Jiaxing, Zhejiang 314200, China
    cSchool of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
    Tel : +86 13985175871 Fax: +86 13985175871

  • E-mail: yuanyuwang0216@163.com