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Biodegradation of Blown Films Based on Poly(lactic acid) under Natural Conditions
Author(s) -
Sedlarik Vladimir,
Saha Nabanita,
Sedlarikova Jana,
Saha Petr
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200851214
Subject(s) - polylactic acid , biodegradation , extrusion , materials science , degradation (telecommunications) , lactic acid , polyester , polymer , biodegradable polymer , composite material , biodegradable plastic , hydrolytic degradation , chemical engineering , chemistry , organic chemistry , bacteria , biology , computer science , engineering , genetics , telecommunications
Summary: Commercially available polymer Bioflex® 219F, blend of polylactic acid and biodegradable co‐polyester, was used for film preparation, performed on mono‐extrusion blown moulding machine. Resulting thin film was investigated on biodegradability in composting conditions for 6 weeks. The influence of microbial attack on mechanical, physico‐chemical properties, weight loss and surface morphology was tested weekly. The results obtained during 6 weeks of composting indicate relatively good accessibility to biological degradation. Moreover, the time course of studied properties was observed through the test period.