TY - JOUR
T1 - Fabrication and investigation on the PANI/MWCNT/thermally annealed graphene aerogel/epoxy electromagnetic interference shielding nanocomposites
AU - Huangfu, Yiming
AU - Ruan, Kunpeng
AU - Qiu, Hua
AU - Lu, Yuanjin
AU - Liang, Chaobo
AU - Kong, Jie
AU - Gu, Junwei
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/6
Y1 - 2019/6
N2 - After ultrasonic dispersion of graphene oxide (GO) prepared by modified Hummers method and surface carboxylated multi-walled carbon nanotubes (f-MWCNT), L-ascorbic acid was added and the MWCNT/thermally annealed graphene aerogel (MWCNT/TAGA) was obtained by thermal annealing. Polyaniline/MWCNT/TAGA (PANI/MWCNT/TAGA) was prepared by slow adding ammonium persulfate into aniline/hydrochloric acid solution containing MWCNT/TAGA. The corresponding PANI/MWCNT/TAGA/epoxy electromagnetic interference shielding nanocomposites were successfully fabricated via template-casting method. Results revealed that when the mass ratio of GO to f-MWCNT was 3:1 and the total loading of PANI/MWCNT/TAGA was 4.61 wt% (2.58 wt% PANI + 0.83 wt% MWCNT + 1.20 wt% TAGA), the obtained PANI/MWCNT/TAGA/epoxy electromagnetic interference shielding nanocomposites presented the highest electromagnetic interference shielding effectiveness (EMI SE, 42 dB). Meanwhile, the corresponding PANI/MWCNT/TAGA/epoxy electromagnetic interference shielding nanocomposites showed electrical conductivity of 52.1 S/cm heat resistance index (T HRI ) of 171.3 °C, and reduced modulus of 5.35 GPa & hardness of 0.39 GPa.
AB - After ultrasonic dispersion of graphene oxide (GO) prepared by modified Hummers method and surface carboxylated multi-walled carbon nanotubes (f-MWCNT), L-ascorbic acid was added and the MWCNT/thermally annealed graphene aerogel (MWCNT/TAGA) was obtained by thermal annealing. Polyaniline/MWCNT/TAGA (PANI/MWCNT/TAGA) was prepared by slow adding ammonium persulfate into aniline/hydrochloric acid solution containing MWCNT/TAGA. The corresponding PANI/MWCNT/TAGA/epoxy electromagnetic interference shielding nanocomposites were successfully fabricated via template-casting method. Results revealed that when the mass ratio of GO to f-MWCNT was 3:1 and the total loading of PANI/MWCNT/TAGA was 4.61 wt% (2.58 wt% PANI + 0.83 wt% MWCNT + 1.20 wt% TAGA), the obtained PANI/MWCNT/TAGA/epoxy electromagnetic interference shielding nanocomposites presented the highest electromagnetic interference shielding effectiveness (EMI SE, 42 dB). Meanwhile, the corresponding PANI/MWCNT/TAGA/epoxy electromagnetic interference shielding nanocomposites showed electrical conductivity of 52.1 S/cm heat resistance index (T HRI ) of 171.3 °C, and reduced modulus of 5.35 GPa & hardness of 0.39 GPa.
KW - A. Polymer-matrix composites (PMCs)
KW - B. Electrical properties
KW - D. Electron microscopy
KW - E. Casting
UR - http://www.scopus.com/inward/record.url?scp=85063478456&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2019.03.041
DO - 10.1016/j.compositesa.2019.03.041
M3 - 文章
AN - SCOPUS:85063478456
SN - 1359-835X
VL - 121
SP - 265
EP - 272
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
ER -