Selective localization of carbon nanotubes in PC/PET blends
Selective localization of carbon nanotubes in PC/PET blends
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DOI：
10.1002/pc.23672
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发表时间：
2017-06
影响因子：
5.2
通讯作者：
Rujirek Wiwattananukul;Y. Hachiya;S. Nobukawa;M. Yamaguchi
中科院分区：
文献类型：
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作者：
Rujirek Wiwattananukul;Y. Hachiya;S. Nobukawa;M. Yamaguchi
研究了多壁碳纳米管（MWCNTs）在聚碳酸酯（PC）和聚对苯二甲酸乙二酯（PET）组成的不相容聚合物共混物中的定位。虽然部分溶解性被确认为共混物，大概是由于酯交换反应，MWCNT添加被发现对溶解性没有影响。此外，形态学研究和溶剂萃取实验表明，多壁碳纳米管优先定位在PET相。热行为表明，多壁碳纳米管作为一个有效的成核剂的PET，导致的结晶温度和结晶度的提高。PC/PET共混物的拉伸性能，即，杨氏模量、屈服强度和极限强度通过添加MWCNT而显著改善。Polym.比较器：38：1103-1111，2017.© 2015塑料工程师协会
The localization of multi-walled carbon nanotubes (MWCNTs) in immiscible polymer blends composed of polycarbonate (PC) and poly(ethylene terephthalate) (PET) is studied. Although partial miscibility is confirmed for the blend, presumably owing to the transesterification reaction, the MWCNT addition is found to have no influence on the miscibility. Moreover, morphological investigation and solvent extraction experiments reveal that MWCNTs are preferentially localized in PET phase. Thermal behavior demonstrates that MWCNTs act as an effective nucleating agent for PET, leading to the increment in crystallization temperature and crystallinity of PET. Tensile properties of PC/PET blends, i.e., Young's modulus, yield strength, and ultimate strength, are significantly improved by the addition of MWCNTs. POLYM. COMPOS., 38:1103–1111, 2017. © 2015 Society of Plastics Engineers