Effects of Poly(ε-caprolactone) on the Properties of Poly(lactic acid)/Poly(butylene succinate) Blends

被引：0
|
作者：
Gu T. [1 ,2 ]
Zhu D. [1 ,2 ]
Zheng Q. [1 ]
Yu J. [2 ]
Lu S. [1 ,2 ]
机构：
[1] Department of Polymer Material and Engineering, College of Material and Metallurgy, Guizhou University, Guiyang
[2] National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang
来源：
Lu, Shengjun (sjlu@gzu.edu.cn) | 2018年 / Sichuan University卷 / 34期
关键词：
Crystallization behavior; Poly(butylene succinate); Poly(lactic acid); Poly(ε-caprolactone); Rheological behavior;
D O I：
10.16865/j.cnki.1000-7555.2018.02.008
中图分类号：
学科分类号：
摘要：
Poly(lactic acid) /poly(butylene succinate)/poly(ε-caprolactone) (PLA/PBS/PCL) blends with different poly(ε-caprolactone) (PCL) contents (PCL content) were prepared by melt blending. And the crystallization property, thermal stability, rheological behavior and mechanical properties of PLA/PBS/PCL blends were studied by XRD, TG, rheometer and universal testing machine. The results show that the addition of PCL does not change the crystal structure of the blends; after addition of PCL, the initial decomposition temperature (Ti) and decomposition termination temperature (Tf) of the blends increase significantly, and when the PCL content is equal to 3 phr, Ti and Tf of the blends are increased by 27.14℃ and 23.31℃, respectively; and when the PCL content is less than or equal to 2 phr, PCL can improve the compatibility of blends, the comptibility between PLA and PBS is improved; and with the increase of PCL content, the tensile strength of the blends increases firstly and then decreases, when the PCL content is equal to 2 phr, it reaches the maximum value of 69.3 MPa, the impact strength of the blends is increased and when the PCL content is equal to 3 phr, it reaches the maximum value of 5.59 kJ/m2, they are increased by 35.4% and 76.9% compared with PLA/PBS blends, respectively. © 2018, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：42 / 47
页数：5
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