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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/6422

Title: Caladium bicolor   and Wild Dioscorea dumetorum   Starches As Dual Purpose Polymer Additive
Authors: Umoren, Saviour A.
Issue Date: 31-Dec-2005
Publisher: World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
Citation: Journal of Applied Sciences and Environmental Management (ISSN: 1119-8362) Vol 9 Num 1
Abstract: Increased elastic modulus and ultimate tensile strength of low density polyethylene has been achieved by incorporating Caladium bicolor   (ornamental cocoyam) and wild Dioscorea dumetorum   (sweet yam) starches into low density polyethylene using a standard hot-melt compounding technique. Some mechanical properties of compression moulded dumb bell shaped films of low density polyethylene containing up to a maximum of 20 wt % of each starch is reported. Increased density of the composite with time after being buried for a total of 12 weeks in composting environment is an evidence of the degradation of LDPE which may be linked to an initial breakdown of starch by microorganism in the soil which probably give rise to diffusion of unsaturated lipids into the porous polymer resulting in degradation by auto-oxidation. @JASEM
URI: http://hdl.handle.net/1807/6422
Other Identifiers: http://www.bioline.org.br/abstract?id=ja05013
Rights: © 2005 Journal of Applied Sciences & Environmental Management
Appears in Collections:Bioline International Legacy Collection

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