Conferences

WATER VAPOR TRANSPORT ENHANCEMENT THROUGH ISOTACTIC POLYPROPYLENE BY INCORPORATING MULTIWALLED CARBON NANOTUBES

G.Bounos,
 
K.S.Andrikopoulos,
 
H.Moschopoulou,
 
Th.Ioannides,
 
K.Kouravelou,
 
G.C.Psarras,
 
G.A.Voyiatzis
 

Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2014, #11/12
http://www.materials.kiev.ua/article/1283

Abstract

In the present work, the incorporation of multiwalled carbon nanotubes (MWCNTs) in isotactic polypropylene (i-PP) was examined in terms of water vapor transport. The structure of the composites, as well as the MWCNT dispersion, was characterized by scanning electron microscopy, Raman spectroscopy, thermal analysis, and X-ray diffraction. Furthermore, broadband dielectric relaxation spectroscopy was employed to study the electrical properties of the nanocomposites. The composite membranes were prepared by a melt mixing procedure. The incorporation of MWCNTs resulted in a 12-fold increase in the specific water vapor transmission rate. Water vapor transport properties were found to be limited by efficient obstructive nanotube agglomerate formation for high MWCNT loadings.


CARBON NANOTUBES–POLYPROPYLENE COMPOSITE, MIXED MATRIX MEMBRANES, WATER VAPOR TRANSPORT PROPERTIES