Miscibility, crystallization, and mechanical properties of poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/ poly(butylene succinate) blends

被引：0
|
作者：
Zhu, Wenfu [1 ]
Wang, Xiaojuan [1 ]
Chen, Xianyu [1 ]
Xu, Kaitian [1 ]
机构：
[1] Multidisciplinary Research Center, Shantou University, Shantou, Guangdong 515063, China
来源：
Journal of Applied Polymer Science | 2009年 / 114卷 / 06期
关键词：
Naturally amorphous biopolyester poly (3-hydroxybutyrate-co-4- hydroxybutyrate) (P3/4HB) containing 21 mol % of 4HB was blended with semi-crystal poly(butylene succinate) (PBS) with an aim to improve the properties of aliphatic polyesters. The effect of PBS contents on miscibility; thermal properties; crystallization kinetics; and mechanical property of the blends was evaluated by DSC; TGA; FTIR; wide-angle X-ray diffractometer (WAXD); Scanning Electron Microscope (SEM); and universal material testing machine. The thermal stability of P3/4HB was enhanced by blending with PBS. When PBS content is less than 30 wt %; the two polymers show better miscibility and their crystallization trend was enhanced by each other. The optimum mechanical properties were observed at the 5-10 wt % PBS blends. However; when the PBS content is more than 30 wt %; phase inversion happened. And the two polymers give lower miscibility and poor mechanical properties. © 2009 Wiley Periodicals; Inc. J Appl Polym Sci 114: 3923-3931; 2009;
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页码：3923 / 3931
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