Electrical conductivity, phase behavior, and rheology of polypropylene/polystyrene blends with multi-walled carbon nanotube

被引：0
作者：
Tae Yong Hwang
Youngjae Yoo
Jae Wook Lee
机构：
[1] Daeduk Research Institute,Advanced Functional Materials Research Group
[2] Honam Petrochemical Corp,Applied Rheology Center, Department of Chemical and Biomolecular Engineering
[3] Korea Research Institute of Chemical Technology,undefined
[4] Sogang University,undefined
来源：
Rheologica Acta | 2012年 / 51卷
关键词：
Polymer blend; MWNT; Polypropylene/polystyrene; Percolation threshold; Electrical conductivity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The electrical, rheological properties and phase change behavior of polypropylene (PP)/polystyrene (PS) blends filled with multi-walled carbon nanotube (MWNT) were investigated. Two kinds of masterbatch were used to prepare ternary blends of PP, PS, and MWNT, and the effects of the kinds of masterbatch were confirmed by phase morphology of ternary blends and the distribution of MWNT. From thermodynamic analysis, MWNT is expected to locate in PS phase and it shows a good agreement with the TEM observations. The ternary composites show the lowest conductive percolation threshold and fine morphologies when most MWNT particles are located at the interface. Time sweep test were carried out to monitor the phase coalescence of the ternary blends and MWNT migration and agglomeration in the PS phase during annealing. The enhancement of thermal properties of MWNT-filled blends was also investigated by DSC and TGA.
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页码：623 / 636
页数：13
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