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Biodegradable foams of poly(lactic acid)/starch. II. Cellular structure and water resistance
Author(s) -
Zhang JianFeng,
Sun Xiuzhi
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26697
Subject(s) - extrusion , materials science , lactic acid , starch , composite material , water resistance , modulus , chemical engineering , chemistry , organic chemistry , bacteria , genetics , biology , engineering
Abstract Biodegradable foams were prepared with poly(lactic acid) and starch by extrusion. The compression modulus of the foams was negatively related to the foam bulk density. The foam consists of both open‐ and close‐cell structures. The presence of PLA significantly improved the water resistance of the foam, and significantly improved the foam recovery capacity, especially in high‐moisture conditions. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007