The Effect of Various Catalyzers on Transesterification in Reactive Blending PC/PLA Blends

Yi  Chen; Yue Peng; Wen Yong Liu; Guang Sheng Zeng; Jun Hong Yang; Xue Hui Yan

doi:10.4028/www.scientific.net/AMR.741.24

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The Effect of Various Catalyzers on Transesterification in Reactive Blending PC/PLA Blends

Abstract:

Polycarbonate/Poly (lactic acid) blends were prepared through melt blending at the present of different kinds of organotin catalyzers such as monobutyltin oxide (MBTO), di-n-butyltinoxide (DBTO), di-n-octyltin oxide (DOTO), and dibutyltin dilaurate (DBTL). The effect of kind and mass of catalyzers on the properties of blends were investigated. The results showed that the DBTO is the most effective catalyzer on catalyzing the transesterification between PLA and PC, which corresponds to the analysis of morphologies and mechanical properties of blends. The use of DBTO could improve the compatibility and thus strengthen the mechanical properties of blends signficantly , and the optimal mass is 0.8wt% of blends.