Foaming of CNTs/PMMA Nanocomposite with Supercritical Carbon Dioxide
| Periodical | Key Engineering Materials (Volume 508) |
|---|---|
| Main Theme | Materials Integration |
| Edited by | Takashi Goto, Zhengyi Fu and Lianmeng Zhang |
| Pages | 61-64 |
| DOI | 10.4028/www.scientific.net/KEM.508.61 |
| Citation | Yuan Lu Xiong et al., 2012, Key Engineering Materials, 508, 61 |
| Online since | March, 2012 |
| Authors | Yuan Lu Xiong, Qiang Shen, Huan Yuan, Fei Chen, Guo Qiang Luo |
| Keywords | Carbon Nanotube (CNT), Foams, Microstructure, Nanocomposite, Nucleation |
| Price | US$ 28,- |
The CNTs/PMMA Nanocomposite Foams Are a Kind of Novel Multifunctional Foams which Have a Potential Application for Lightweight Conductive and EMI Shielding Materials. In this Work, the CNTs/PMMA Nanocomposite Foams with Different CNTs Contents from 1wt.% to 10wt.% Were Prepared at a Temperature Range of 50-140 °C with Supercritical Carbon Dioxide as Blowing Agent. The Results Suggest that the Fully Heterogeneous Nucleation Is Achieved due to the Contribution of Well-Dispersed CNTs in PMMA. The CNTs/PMMA Nanocomposite Foams Exhibit a Uniform Cell Distribution, and the Cell Density Is Two Orders of Magnitude Higher than that of PMMA Foams. The Cell Size and Cell Density of CNTs/PMMA Nanocomposite Foams Could Be Controlled by Adjusting the Foaming Process and CNTs Contents. It Is Also Suggested that the Foaming Process Plays an Important Role on the Cell Structure Rather than that of CNTs Content when it Is Higher than 1wt.%.
