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Crystallization behavior and mechanical properties of poly(lactic acid)/poly(ethylene oxide) blends nucleated by a self-assembly nucleator |
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| Authors: | Kong Weili Tong Beibei Ye Aolin Ma Ruixue Gou Jiaomin Wang Yaming Liu Chuntai Shen Changyu |
| Institution: | 1.National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Advanced Materials Processing and Mold (Ministry of Education), Zhengzhou University, Zhengzhou, 450002, China ;2.School of Mechanical Engineering, Yellow River Conservancy Technical Institute, Kaifeng, 475000, China ;3.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, 116024, China ; |
| Abstract: | Poly(lactic acid) (PLA)/poly(ethylene oxide) (PEO) blends nucleated by a self-assembly nucleating agent, N,N′,N″-tricyclohexyl-1,3,5-benzenetricarboxylamide (BTCA), were prepared by melt blending. The crystallization behavior and mechanical properties of the materials were investigated by differential scanning calorimetry, polarized optical microscopy, wide-angle X-ray diffraction, dynamic mechanical analyzer and tensile testing. It was found that PEO had a synergistic effect together with BTCA on promoting PLA crystallization, besides its toughening effect on the material. Moreover, BTCA revealed prominent reinforcement effect on both neat PLA and PLA/PEO blends in the glass transition region and above, indicating the improvement on the heat resistance of the materials. |
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