Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7140
Title: Water and water vapor sorption studies in poly(propylene)-zeolite composites
Authors: Pehlivan, Hilal
Özmıhçı, Filiz
Tıhmınlıoğlu, Funda
Balköse, Devrim
Ülkü, Semra
Pehlivan, Hilal
Özmıhçı, Filiz
Tıhmınlıoğlu, Funda
Balköse, Devrim
Ülkü, Semra
Keywords: Composites
Poly(propylene)
Zeolites
Polypropylenes
Issue Date: Oct-2003
Publisher: John Wiley and Sons Inc.
Source: Pehlivan, H., Özmıhçı, F., Tıhmınlıoğlu, F., Balköse, D., and Ülkü, S. (2003). Water and water vapor sorption studies in poly(propylene)-zeolite composites. Journal of Applied Polymer Science, 90(2), 352-359. doi:10.1002/app.12572
Abstract: Water and water vapor sorption to porous poly(propylene)zeolite composites prepared by hot pressing have been studied as a function of zeolite loading. This work presents the first report on the effect of the zeolite as a filler on the water sorption properties of PP composites. Water swelling experiments were conducted at 25°C using pure PP and PP-zeolite film samples having different zeolite loadings (6-40 wt%). Since PP is a hydrophobic polymer, it does not sorp any water, but the composites having 10, 20, 30, and 40% zeolite sorbed 0.63, 1.00, 1.72 and 3.74 wt% water, respectively. The zeolite itself at the same conditions sorbed 24.5 wt% water. As the filler loading in the composites increased, equilibrium uptake values increased too. On the other hand, water vapor sorption and kinetics has been studied using a Cahn 2000 gravimetric sorption system. Within in the range 0.35-0.95%, water vapor was adsorbed by the composites containing 10-40 wt% zeolite. Experimental effective water vapor diffusivities of the composite films were about one order of magnitude higher than the experimental water diffusion coefficient in composites. The transport of water in composites was slower than that in the liquid water due to the longer diffusion pathway and adsorption on the surface of the composites. Although the liquid water may fill all the voids in the composite, water vapor is adsorbed on the surface of the zeolite only.
URI: https://doi.org/10.1002/app.12572
http://hdl.handle.net/11147/7140
ISSN: 0021-8995
1097-4628
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
7140.pdfMakale (Article)207.29 kBAdobe PDFThumbnail
View/Open
Show full item record

CORE Recommender

SCOPUSTM   
Citations

5
checked on Oct 16, 2021

WEB OF SCIENCETM
Citations

1
checked on Oct 16, 2021

Page view(s)

34
checked on Oct 22, 2021

Download(s)

24
checked on Oct 22, 2021

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.