In:
Journal of Nanoscience and Nanotechnology, American Scientific Publishers, Vol. 8, No. 5 ( 2008-05-01), p. 2671-2675
Abstract:
The polyimide/multi-walled carbon nanotubes (PI/MWNTs) nanocomposite film has been successfully synthesized in this study. The source of MWNTs is prepared by chemical vapor deposition (CVD) method. Then the MWNTs are washed with acid for purification before being added into the polymer
matrix. The acid-modified procedure aids in dispersing MWNTs in N,N-dimethylacetamide (DMAc) solvent. Based on the results of field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM), the MWNTs are embedded in PI and well-dispersed within the PI matrix. The dynamic mechanical analysis (DMA) shows that the storage modulus of nanocomposite film is increased by 68% with the addition of 1 wt% MWNTs into PI. The nanocomposite films start to decompose at or above 400 °C and lose 5% of its weight at 545 °C according to thermogravimetric
analysis (TGA). Meanwhile, the electrical conductivity of the nanocomposite film with 3 wt% MWNTs, is raised more than 10 orders of magnitude from 10 −15 to 10 −5 S/cm.
Type of Medium:
Online Resource
ISSN:
1533-4880
DOI:
10.1166/jnn.2008.470
Language:
English
Publisher:
American Scientific Publishers
Publication Date:
2008
detail.hit.zdb_id:
2071040-9
SSG:
11
