Effect of high‐shear mixing by twin‐screw extruder on the dispersion and homogeneity of polyacrylonitrile/carbon nanotube composite solution
Abstract
High‐shear mixing experiments using twin‐screw extruder were conducted to study the effect of shearing on carbon nanotube (CNT) dispersion in polyacrylonitrile (PAN) polymer solution. Different types of CNTs (few‐wall carbon nanotube and single‐wall carbon nanotube) were used to prepare composite solution at 0.5 wt% with respect to the PAN polymer through various preparation conditions. The resulting PAN/CNT composite solution was characterized using various techniques including dynamic light scattering, preparative ultracentrifuge method, optical microscopy, solution rheology, and high‐resolution transmission electron microscopy. With increasing the number of extrusion cycle, it was observed that the CNT bundle size was moderately reduced, while solution homogeneity and macroscopic CNT dispersion was significantly improved. POLYM. COMPOS., 38:719–726, 2017. © 2015 Society of Plastics Engineers
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 12, 2015
- Source ID
- 10.1002/pc.23631
Entities
People
- Han Gi Chae
- Hongming Dong
- Satish Kumar
- Tao Liu
- Xuejia Yan
- Yaodong Liu
- Zhiwei Xiao
Organizations
- Defense Advanced Research Projects Agency
- Florida State University
- Georgia Tech