Preparation and characterization of PVA/OMMT composites

Yurudu C., ISCI S., UNLU C. H., Atici O., ECE O. I., GUNGOR N.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.102, sa.3, ss.2315-2323, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 102 Sayı: 3
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1002/app.24452
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2315-2323
  • Anahtar Kelimeler: montmorillonite, hexadecylamine, organoclay, composite, rheology, zeta potential, BENTONITE DISPERSIONS, THERMOMECHANICAL PROPERTIES, RHEOLOGICAL PROPERTIES, NANOCOMPOSITES, CLAY, ORGANOCLAYS, MORPHOLOGY, WATER
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this study, polyvinyl alcohol/organically modified montmorillonite (HDA/MMT; organoclay) composite was prepared for the intercalation processes. Firstly, the rheological behavior of aqueous montmorillonite dispersions was investigated as a function of solid content. Hexadecylamine (HDA) was added to the montmorillonite dispersion (2%, w/w) in different concentrations in the range of 5 X 10(-4) - 9 X 10(-3) mmol/L. The basal spacing of the organoclay (OMMT) was studied by X-ray diffraction. The FTIR spectra are obtained from the modified montmorillonite products, which revealed the characteristic absorbencies after treatment with HDA. HDA/MMT/PVA composite, which was produced by the reaction of 1 wt % PVA solution with organoclay complex, is characterized by the rheology, electrokinetic, XRD, FTIR, and SEM techniques. (c) 2006 Wiley Periodicals, Inc.