TY - JOUR
T1 - Influence of chemically and plasma-functionalized carbon nanotubes on high-performance polymeric nanocomposites
AU - Ajeesh, G.
AU - Bhowmik, Shantanu
AU - Venugopal, Sivakumar
AU - Varshney, Lalit
AU - Baluch, Abrar
AU - Park, Yurim
AU - Gilsang, Son
AU - Kim, Chun Gon
PY - 2016/6/1
Y1 - 2016/6/1
N2 - This investigation highlights different surface functionalization processes of multi-walled carbon nanotubes (MWCNTs) and their effects on mechanical properties of polyetherimide nanocomposite. Surfaces of MWCNTs were modified by chemical process and by low-pressure plasma process. There is a significant change in physicochemical characteristics of MWCNTs after chemical and low plasma treatment evident from scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy studies. Due to surface modification of CNTs, there is a significant change in surface morphology and increase in oxygen functionalities such as C=O, C-O, and COOH especially evident in low-pressure plasma treatment; however, differential scanning calorimeter and thermogravimetric analysis studies reveal that thermal properties of the composite do not alter as such. There is a significant increase in mechanical properties of high-performance polymeric nanocomposites when surface-functionalized MWCNTs are dispersed in polymeric matrix; however, surface characteristics of the composite remain almost unchanged evident from contact angle and surface energy studies.
AB - This investigation highlights different surface functionalization processes of multi-walled carbon nanotubes (MWCNTs) and their effects on mechanical properties of polyetherimide nanocomposite. Surfaces of MWCNTs were modified by chemical process and by low-pressure plasma process. There is a significant change in physicochemical characteristics of MWCNTs after chemical and low plasma treatment evident from scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy studies. Due to surface modification of CNTs, there is a significant change in surface morphology and increase in oxygen functionalities such as C=O, C-O, and COOH especially evident in low-pressure plasma treatment; however, differential scanning calorimeter and thermogravimetric analysis studies reveal that thermal properties of the composite do not alter as such. There is a significant increase in mechanical properties of high-performance polymeric nanocomposites when surface-functionalized MWCNTs are dispersed in polymeric matrix; however, surface characteristics of the composite remain almost unchanged evident from contact angle and surface energy studies.
KW - Carbon nanotubes
KW - interfacial strength
KW - photoelectron spectroscopy (XPS)
KW - plasma deposition
KW - stress transfer
UR - http://www.scopus.com/inward/record.url?scp=84973483335&partnerID=8YFLogxK
U2 - 10.1177/0954008315591189
DO - 10.1177/0954008315591189
M3 - Article
AN - SCOPUS:84973483335
SN - 0954-0083
VL - 28
SP - 570
EP - 580
JO - High Performance Polymers
JF - High Performance Polymers
IS - 5
ER -