Preparation and properties of LDHs/epoxy nanocomposites

Huai Bin Hsueh, Chuh Yung Chen

研究成果: Article同行評審

167 引文 斯高帕斯(Scopus)

摘要

Layered double hydroxides (LDHs)/epoxy nanocomposites were prepared by mixing the amino laurate intercalated LDHs, EPON 828 resin, and Jeffamine D400 as a curing agent. The organo-modified LDHs with hydrophobic property easily disperse in epoxy resin, and the amino laurate intercalated LDHs with large gallery space allow the epoxy molecules and the curing agents to easily diffuse into the LDHs galleries at elevated temperature. After the thermal curing process, the exfoliated LDHs/epoxy nanocomposites were formed. X-ray diffraction was used to detect the formation process of the exfoliated LDHs/epoxy nanocomposites. TEM was used to observe the dispersed behavior of the LDHs nanolayers, and the LDHs nanolayers were exfoliated and well dispersed in these nanocomposites. Owing to the reaction between the amine groups of the intercalated amino laurate and epoxy groups, the adhesion between the LDHs nanolayers and epoxy molecules makes these LDHs/epoxy nanocomposites more compatible. Consequently, the tensile properties from tensile test and the mechanical properties from DMA were enhanced, and the Tg of these nanocomposites from DMA and TMA were increased. Coefficients of thermal expansion (CTEs, below and above Tg) of these nanocomposites from TMA decreased with the LDHs content. The thermal stability of these nanocomposites was enhanced by the well dispersed LDHs nanolayers.

原文English
頁(從 - 到)5275-5283
頁數9
期刊polymer
44
發行號18
DOIs
出版狀態Published - 2003 八月 7

All Science Journal Classification (ASJC) codes

  • 有機化學
  • 聚合物和塑料
  • 材料化學

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