✦ LIBER ✦

A formation of compatible poly(vinyl alcohol)/alumina gel composite and its properties

✍ Scribed by Fumio Suzuki; Kenji Onozato; Yohichi Kurokawa

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 1016 KB
Volume: 39
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1990.070390214

No coin nor oath required. For personal study only.

✦ Synopsis

A formation of poly(viny1 alcohol) (PVA)/alumina gel composite was investigated with a viewpoint of compatibility of the composite. An alumina sol was prepared from aluminium iso-propoxide (Al(iPro)3). The alkoxide was hydrolyzed and the resultant hydrate was peptized to a clear sol with acetic acid. The composite were transparent in whole content of alumina. The effects of dispersed alumina on the sorption of water and mechanical properties of composite were examined. The composites containing PVA 40-50% are flexible. They are folded in various forms and can be drawn five times the initial length in humid state. The residues obtained by calcination to remove PVA at 600°C keep its original form and transparency.

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