Preparation and Characterization of Poly(propylene carbonate)/Alkali Lignin Composite Sheets by Calendering Process

Abstract:

PPC is a new biodegradable aliphatic polycarbonate with poor thermal stability and mechanical properties which is difficult to form sheets or films and so on. Through the addition of alkali lignin, thermal stability and mechanical properties of PPC was improved largely. PPC/ alkali lignin sheets could be prepared. DSC results showed that the thermal stability of PPC was improved by the introduction of alkali lignin. SEM showed good dispersion of alkali lignin particles into PPC matrix that resulted in good miscibility. Improved mechanical properties and thermal stability of PPC/ alkali lignin blends were attributed to stronger interfacial interaction of PPC and alkali lignin. These results indicate that blending PPC with alkali lignin is an efficient and convenient method to improve the properties of PPC.

• Periodical: Advanced Materials Research (Volumes 233-235)
• Pages: 1786-1789
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.233-235.1786
• Online since: May 2011
• Authors: Li Sha Pan, Nai Xu, Zheng Tian, Ling Bin Lu, Su Juan Pang, Qiang Lin
• Keywords: Alkali Lignin, Biodegradable, Poly(propylene Carbonate), Sheet

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