The application of tapanuli clay as nanofiller in nanocomposites: Synthesis and their characterization

Ariadne Lakshmidevi, Riwandi Sihombing, Yuni Krisyuningsih, Sutarno, Handoko Subawi, Nidya Chitraningrum

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Organo layered silicates (OLS) were successfully synthesized from Tapanuli clay through an intercalated ultrasonic method using hexadecyltrimethylamonium bromide (HDTMABr) as a cation exchange agent. Tapanuli clayepoxy nanocomposites were also successfully synthesized with an in-situ polymerization. X-Ray Diffraction and Transmission Electron Microscope (TEM) results demonstrated a pattern of clay morphology typically found in nanocomposite systems. Although the nanocomposites' diffractogram showed an exfoliation structure, the TEM findings confirmed that the OLS d-spacing is between 2.58 nm (the minimum value) up to 14.74 nm (the maximum value); which indicates the nanocomposites posses a mixed structure between intercalated and exfoliated structures. It was found that the presence of 1wt% Tapanuli organo clay in the epoxy systems provides higher stiffness and higher Heat Deflection Temperature by 30 % and 7 % respectively.

Original languageEnglish
Pages (from-to)148-156
Number of pages9
JournalInternational Journal of Modern Physics B
Volume24
Issue number1-2
DOIs
Publication statusPublished - 20 Jan 2010

Keywords

  • Epoxy-clay nanocomposites
  • HDT
  • Mechanical properties
  • Organo clay
  • Tapanuli clay

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