An amphoteric water-soluble copolymer. II. Effect of its molecular weight on the dispersion of barium titanate in water

Kuo Liang Ying, Kung Chung Hsu*, Wen Cheng J. Wei

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

An amphoteric water-soluble copolymer, that is, polyacrylamide/(α-N,N-dimethyl-N-acryloyloxyethyl)ammonium ethanate (PAAM/DAAE) was synthesized and it showed the ability to disperse BaTiO 3 (BT) particles in aqueous solutions. In this work, the effect of molecular weight of this polymer on the dispersing properties was further examined. The results indicate that the effectiveness of three polymer samples with different molecular weights in the dispersion of BT particles is P2 (M w = 1.1 × 105) > P1 (Mw = 1.2 × 104) > P3 (Mw = 3.0 × 105). Apparently, P2 is most effective in dispersing the particles, reducing the viscosity of the suspensions, and obtaining highest green and sintered densities. This is attributed to the highest adsorption of this polymer onto BT powder, and causes strongest electrostatic and steric repulsions.

原文英語
頁(從 - 到)886-891
頁數6
期刊Journal of Applied Polymer Science
100
發行號2
DOIs
出版狀態已發佈 - 2006 四月 15

ASJC Scopus subject areas

  • 化學 (全部)
  • 表面、塗料和薄膜
  • 聚合物和塑料
  • 材料化學

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