Synthesis and properties of iodo functionalized graphene oxide/poluimide nanocomposites

Title
Synthesis and properties of iodo functionalized graphene oxide/poluimide nanocomposites
Authors
박옥경김선국유남호구본철David Hui이중희
Keywords
polymer matrix composites; thin films; electrical properties; mechanical properties; nano-structures
Issue Date
2014-01
Publisher
Composites. Part B, Engineering
Citation
VOL 56, 365-371
Abstract
We report an effective method to fabricate the graphene-based high performance polyimide (PI) nanocomposites via the in situ polymerization with iodo functionalized graphene oxide (I-Ph-GO). The electrical conductivity of the reduced iodo functionalized graphene oxide (R-I-Ph-GO)/PI (1/99 w/w) nanocomposites was 5.2 x10-2 S/m, which is about 107 times higher than that of the reduced graphene oxide (R-GO)/PI (1/99 w/w) nanocomposites. The tensile modulus of R-I-Ph-GO/PI (0.5/99.5 w/w) nanocomposites was increased from 2.5 GPa to 6.8 GPa, and the tensile strength was increased from 75 MPa to 123 MPa, which were approximately 170% and 64% enhancement compared to those of pure PI, respectively. In addition, the water transmission rate of an I-Ph-GO/PI (0.2/99.8 w/w) nanocomposites film was lower than that of R-GO/PI nanocomposites and was reduced by about 67% compared to that of pure PI.
URI
http://pubs.kist.re.kr/handle/201004/45863
ISSN
13598368
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE