Starch-polyvinyl alcohol cast film-performance and biodegradation
Conference
·
OSTI ID:370896
- National Center for Agricultural Utilization Research, Peoria, IL (United States); and others
Starch-polyvinyl alcohol (PVOH) cast films were prepared in the absence of plasticizer. Their physical and biodegradable properties were examined. Moisture absorption by the films was similar to that of PVOH at low humidity and increased linearly as the relative humidity increased. The tensile strength of the films decreased with increased humidity and did not display significant improvement with increased PVOH content. Higher PVOH content improved elongation when the relative humidity was 80% or higher. Biodegradation studies revealed that the presence of PVOH in the films slowed the rate of degradation.
- OSTI ID:
- 370896
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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