Surface characterisation of montmorillonite/PVC nanocomposites by inverse gas chromatography

Karakehya N., Bilgic C.

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, cilt.51, ss.140-147, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 51
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.ijadhadh.2014.03.001
  • Dergi Adı: INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.140-147
  • Anahtar Kelimeler: Poly(vinyl chloride)/montmorillonite, nanocomposites, Inverse gas chromatography, Surface characterisation, ACID-BASE, THERMAL-PROPERTIES, CLAY, ADSORPTION, ENERGY, TEMPERATURE, INFINITE, POLYMERS, SYSTEMS
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Inverse gas chromatography is a rather useful technique for evaluating the potential of the interaction of polymers, polymer nanocomposites and their different components. In this study, the dispersive component of the surface free energy and surface acid-base constants of montmorillonite/PVC and organo-montmorillonite/PVC nanocomposites, prepared using the solution blending method, will be determined using the inverse gas chromatography. The glass transition temperatures of nanocomposites have been determined using a differential scanning calorimeter (DSC). Furthermore, the morphology and surface functional groups of the materials have been analysed with the aid of x-ray diffraction (XRD) and Fourier Transform Infrared (FT-IR) spectroscopy. The dispersive component values (gamma(d)(s)) of the surface free energy of PVC nanocomposites containing 1%, 5%, and 10% oMMT and 5% MMT wt% at 50 degrees C have been calculated as 39.6, 40.2, 41.6, and 34.0 mJ/m(2) respectively, and the K-D/K-A values have been determined as 1.83, 2.18, 2.47, and 1.46 respectively. It was observed that there is an increase in the K-D/K-A value, and the nanocomposites display a more basic character with the increasing amount of organo-bentonite in the PVC. (C) 2014 Elsevier Ltd. All rights reserved.