Effect of water and pressure-induced flow deformation process on microstrcture and thermal properties of polylactide/starch blends
In this paper, Polylactide(PLA)/Starch blends were obtained by extrusion and pressure induced flow (PIF) deformation process, a constant compression at low temperature with side constraint. Water was utilized before PIF to make the starch shape change more easily. SEM was used to characterize the microstructure of PLA/starch blends and the results showed that lamellar microstructure was constructed in all blends specimens; the shape of starch was changed to round when pressure was imposed and ellipsoidal shape was observed with water utilization. The DSC analysis showed that the blends processed with pressure had different crystallization peak temperature compared to original specimen, and water plays an irreversible effect on blends.
WU Chao TENG Cuiqing HAN Keqing YU Muhuo
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering Donghua University, Shanghai 201620 ，P.R .China
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
74-76
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）