Effect of Thermal Treatment and Relative Humidity on The d-spacings of Poly(ethylene glycol) Montmorillonite Nanocomposites

DOI

10.2991/icopia-14.2015.29How to use a DOI?

Keywords

Poly(ethylene glycol), montmorillonite, d-spacing, thermal treatment, relative humidity, x-ray diffraction.

Abstract

The effect of temperature and relative humidity on the d-spacing of montmorillonite (MMT) clay in Poly(ethylene glycol) Mw 600 (PEG600) nanocomposites prepared by solution casting has been investigated, since it can be significantly affected by any associated water. X-ray diffraction (XRD) traces were collected from samples after heating for 10 minutes at 80 °C and 150 °C and then after cooling and equilibrating for 24 hours at 20 °C and 50% RH, the samples were then equilibrated for 24 hours at 20 °C and 85% relative humidity. It was found that below a loading of 4 wt% PEG600 the d-spacing collapses upon heating at 150 oC, that by 13 wt % PEG600 a fully loaded single layer is formed, while by 17 wt % PEG600 a bilayer is formed. Above 17 wt % PEG600, the spacing was not affected by thermal treatment and relative humidity indicating that clay gallery was fully loaded by PEG600 and or very small water molecules associated with PEG600 in the MMT gallery.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Khairuddin Khairuddin
PY  - 2014/09
DA  - 2014/09
TI  - Effect of Thermal Treatment and Relative Humidity on The d-spacings of Poly(ethylene glycol) Montmorillonite Nanocomposites
BT  - Proceedings of the 2014 International Conference on Physics and its Applications
PB  - Atlantis Press
SP  - 148
EP  - 152
SN  - 2352-541X
UR  - https://doi.org/10.2991/icopia-14.2015.29
DO  - 10.2991/icopia-14.2015.29
ID  - Khairuddin2014/09
ER  -