Preparation of polyimide/LDH nanocomposites and characterization of their properties

Bing Zhi Guo, Yun Zhao, Han Sheng Li, Wei Zhen Qiu, Qing Ze Jiao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Pre-exfoliated organic layered double hydroxides(LDHs) modified with N-Lauroyl-glutamate (LDH-LG) was prepared in the O/W type microemulsion. Then exfoliated polyimide(PI)/LDH nanocomposites were prepared by in situ polymerization. The high resolution transmission electron microscope showed that the nanoscale organic LDH particles were homogeneously dispersed in the polymer matrix. The X-ray diffraction analysis showed that the addition of LDH-LG improved the crystallinity of PI. Mechanical testing showed that the mechanical properties of the PI/LDH nanocomposite films were significantly enhanced by nano-LDH sheets and 0.5% (wt)of LDH-LG led to improvement of the tensile strength by 32.5%.

Original languageEnglish
Pages (from-to)133-138
Number of pages6
JournalJournal of Beijing Institute of Technology (English Edition)
Volume24
Issue number1
DOIs
Publication statusPublished - 1 Mar 2015

Keywords

  • Layered double hydroxides
  • Nanocomposites
  • Polyimide

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Guo, B. Z., Zhao, Y., Li, H. S., Qiu, W. Z., & Jiao, Q. Z. (2015). Preparation of polyimide/LDH nanocomposites and characterization of their properties. Journal of Beijing Institute of Technology (English Edition), 24(1), 133-138. https://doi.org/10.15918/j.jbit1004-0579.201524.0119