Biodegradable Plasticized Blends of Poly(L-lactide) and Cellulose Acetate Butyrate: From Blend Preparation to Biodegradability in Real Composting Conditions

详细信息    查看全文

• 作者：Pimpanitpa Kunthadong ; Robert Molloy…
• 关键词：Poly(L ; lactide) ; Cellulose acetate butyrate ; Polymer blends ; Biodegradability ; Real composting ; Bioplastics
• 刊名：Journal of Polymers and the Environment
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：23
• 期：1
• 页码：107-113
• 全文大小：1,121 KB
• 参考文献：1. Pillin, I, Montrelay, N, Grohens, Y (2006) Polymer 47: pp. 4676 CrossRef
  2. Tsuji, H, Ikada, YJ (1998) J Appl Polym Sci 67: pp. 405 CrossRef
  3. Perego, G, Cella, GD, Bastioli, C (1996) J Appl Polym Sci 59: pp. 37 CrossRef
  4. Hansen, CM (2004) Prog Org Coat 51: pp. 10
  5. Hu, Y, Rogunova, M, Topolkaraev, V, Hiltner, A, Baer, E (2003) Polymer 44: pp. 5701 CrossRef
  6. Martin, O, Avérous, L (2001) Polymer 42: pp. 6209 CrossRef
  7. Lotti, N, Scandola, M (1992) Polym Bull 29: pp. 407 CrossRef
  8. Tatsushima, T, Ogata, N, Nakane, K, Ogihara, T (2005) J Appl Polym Sci 96: pp. 400 CrossRef
  9. Tachibana, Y, Giang, NTT, Ninomiya, F, Funabashi, M, Kunioka, M (2010) Polym Degrad Stab 95: pp. 1406 CrossRef
  Standard test method for tensile properties of thin plastic sheeting. American Society for Testing and Materials, Philadelphia
  10. Kai-Lai, GH, Pometto, AL, Hinz, PN (1999) J Environ Polym Degrad 7: pp. 83 CrossRef
  11. Kale, G, Auras, R, Singh, SP (2006) J Polym Environ 14: pp. 317 CrossRef
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  
• 出版者：Springer Netherlands
• ISSN：1572-8900

文摘

Biodegradable blends of poly(L-lactide) (PLL) and cellulose acetate butyrate (CAB) were prepared as 40-0?μm thick films cast from solution using chloroform as a solvent. Both poly(ethylene glycol) (PEG) and a polyester adipate (Paraplex G40) were used as plasticizers to decrease the PLL/CAB blends-glass transition temperature and make them more flexible. Ternary PLL/CAB/PEG blends showed only partial compatibility due to phase separation of crystalline PLL-rich and CAB-rich domains. In contrast, when Paraplex G40 was used as the plasticizer, it produced PLL/CAB/Paraplex G40 blends with stable morphology over an extended period of time with much reduced phase separation. The PLL/CAB/plasticizer blend films all degraded in real composting conditions at PLL contents of over 50?wt%. Moreover, the PEG-plasticized ternary blend films showed complete degradability at PLL?≥?0 and CAB?≤?0?wt%. These results suggest that the CAB content and plasticizer type can be used to tune polymer blend compatibility and biodegradability. The most promising formulations were found to be PLL/CAB/Paraplex G40 blends with compositions of PLL?≥?0, CAB?≤?0 and Paraplex G40?=?20 parts by weight, combining good polymer compatibility and biodegradability with a suitable balance of mechanical properties.