Effects of PVA content and calcination temperature on the properties of PVA/boehmite composite film

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Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26600

Title:	Effects of PVA content and calcination temperature on the properties of PVA/boehmite composite film
Authors:	Yang,WP;Shyu,SS;Lee,ES;Chao,AC
Contributors:	化學工程與材料工程學系
Keywords:	ALUMINA MEMBRANES;SOL;ALKOXIDES;GELS
Date:	1996
Issue Date:	2010-06-29 17:32:04 (UTC+8)
Publisher:	中央大學
Abstract:	Composite films of poly( vinyl alcohol) (PVA)/boehmite with thicknesses of about 180 mu m were studied for samples with different PVA contents at different calcination temperatures. The pure boehmite sol (AlO(OH)) was prepared by a sol-gel method. The films were analyzed by thermal analysis (DSC and TGA), X-ray diffraction, average pore size analysis (BET method), functional group analysis (FT-IR),and morphology analysis (SEM). The results showed that an exothermic reaction between PVA and boehmite occurred when the calcination temperature was around 170 degrees C and cracking of this film was inhibited at various calcination temperatures. It is shown that the morphology of the composite film depends on the PVA concentration and the calcination temperature.
Relation:	MATERIALS CHEMISTRY AND PHYSICS
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

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