biodegradability evaluation of polymers by iso 14855-2生物降解性评价聚合物通过iso 14855 - 2.pdf

Int. J. Mol. Sci. 2009, 10, 3635-3654; doi:10.3390/ijm OPEN ACCESS International Journal of Molecular Sciences ISSN 1422-0067 /journal/ijms Review Biodegradability Evaluation of Polymers by ISO 14855-2 Masahiro Funabashi *, Fumi Ninomiya and Masao Kunioka National Institute of Advanced Industrial Science and Technology (AIST) / 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan; E-Mails: f.ninomiya@aist.go.jp (F.N.); m.kunioka@aist.go.jp (M.K.) * Author to whom correspondence should be addressed; E-Mail: m.funabashi@aist.go.jp (M.F.); Tel. +81-29-861-4584; Fax: +81-29-861-4589 Received: 4 August 2009; in revised form: 13 August 2009 / Accepted: 17 August 2009 / Published: 18 August 2009 Abstract: Biodegradabilities of polymers and their composites in a controlled compost were described. Polycaprolactone (PCL) and poly(lactic acid) (PLA) were employed as biodegradable polymers. Biodegradabilities of PCL and PLA samples in a controlled compost were measured using a Microbial Oxidative Degradation Analyzer (MODA) according to ISO 14855-2. Sample preparation method for biodegradation test according to ISO/DIS 10210 was also described. Effects of sizes and shapes of samples on biodegradability were studied. Reproducibility of biodegradation test of ISO 14855-2 by MODA was confirmed. Validity of sample preparation me