Dry and wet mechanical properties of polylactic acid in the presence of canola oil

作者：Kumar Rakesh^*; Josse Camille; Anandjiwala Rajesh

来源：Asia-Pacific Journal of Chemical Engineering, 2014, 9(3): 382-389.

DOI：10.1002/apj.1807

• polylactic acid
• canola oil
• dry and wet mechanical properties
• glass transition temperature

Polylactic acid (PLA) is a compostable and biodegradable polymer obtained from renewable resources. They can be used in the packaging and medical industries. For our study, two grades of PLA resins were procured. One grade was procured from Cereplast, Inc., USA, (CPL) and other from NatureWorks LLC, USA, (NWPL). Mechanical, thermal, thermomechanical and morphological studies were carried out for PLA resins procured from both the sources. Virgin and modified canola oil (0.25-0.5% with respect to PLA) were mixed manually with CPL and NWPL to prepare injection-moulded specimens. Mechanical, thermal, thermomechanical and morphological studies of injection moulded PLA samples in the presence of canola oil were then carried out. Results indicated that canola oil acted as a plasticizer for PLA specimens.

• 出版日期2014-7