TY - JOUR
T1 - Investigation of thermomechanical properties and matrix-filler interaction on polyimide/graphene oxide composites
AU - Pramoda, Kumari P.
AU - Mya, Khine Y.
AU - Lin, Ting T.
AU - Lu, Xuehong
AU - He, Chaobin
PY - 2012/12
Y1 - 2012/12
N2 - We report, the preparation of nanocomposites having polyimide (PI) as matrix and graphene oxide (GO) as filler, analyses of matrix-filler interactions, and enhancements in thermomechanical properties of PI/GO as compared with pristine PI. The matrix-filler interactions were analyzed by 1H NMR, X-ray photoelectron spectroscopy, and density functional theory calculations. The data suggested stronger matrix-filler interactions in PI/GO as compared with PI/G composites. The stronger matrix-filler interactions and homogeneous dispersion of fillers lead to a significant enhancement in mechanical properties in PI/GO nanocomposites. Thus, with just 1 wt% GO content, the modulus of PI/GO composite increased by â106% as compared with pristine PI. Finally, thermal expansion coefficients of the nanocomposites are also investigated. A plausible hypothesis has been proposed in the text to explain the observed matrix-filler interactions and the subsequent property enhancements in nanocomposites. POLYM. ENG. SCI., 2012. © 2012 Society of Plastics Engineers
AB - We report, the preparation of nanocomposites having polyimide (PI) as matrix and graphene oxide (GO) as filler, analyses of matrix-filler interactions, and enhancements in thermomechanical properties of PI/GO as compared with pristine PI. The matrix-filler interactions were analyzed by 1H NMR, X-ray photoelectron spectroscopy, and density functional theory calculations. The data suggested stronger matrix-filler interactions in PI/GO as compared with PI/G composites. The stronger matrix-filler interactions and homogeneous dispersion of fillers lead to a significant enhancement in mechanical properties in PI/GO nanocomposites. Thus, with just 1 wt% GO content, the modulus of PI/GO composite increased by â106% as compared with pristine PI. Finally, thermal expansion coefficients of the nanocomposites are also investigated. A plausible hypothesis has been proposed in the text to explain the observed matrix-filler interactions and the subsequent property enhancements in nanocomposites. POLYM. ENG. SCI., 2012. © 2012 Society of Plastics Engineers
UR - http://www.scopus.com/inward/record.url?scp=84869440869&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869440869&partnerID=8YFLogxK
U2 - 10.1002/pen.23208
DO - 10.1002/pen.23208
M3 - Article
AN - SCOPUS:84869440869
SN - 0032-3888
VL - 52
SP - 2530
EP - 2536
JO - Polymer Engineering and Science
JF - Polymer Engineering and Science
IS - 12
ER -