TY  - JOUR
A1  - Saleem, H.
A1  - Thunga, M.
A1  - Kollosche, Matthias
A1  - Kessler, M. R.
A1  - Laflamme, S.
T1  - Interfacial treatment effects on behavior of soft nano-composites for highly stretchable dielectrics
JF  - Polymer : the international journal for the science and technology of polymers
N2  - We investigate the influence of interfacial treatment on the matrix filler interaction using a melt mixing process to fabricate robust and highly stretchable dielectrics. Silicone oil and silane coupling agent are studied as possible solutions to enhance the compatibility between the inorganic fillers and polymer matrix. Morphology, thermomechanical and dielectric behavior of the prepared specimens are studied. Results show that specimens filled with silicone oil coated particles have promising dielectric and thermal properties. The mechanical properties reveal a stiffness enhancement by 67% with a high strain at break of 900%. The relative permittivity of the specimens prepared with silicone oil increased by 45% as observed from the dielectric analysis. (C) 2014 Elsevier Ltd. All rights reserved.
KW  - Dielectric materials
KW  - Permittivity
KW  - Surface treatment
Y1  - 2014
U6  - https://doi.org/10.1016/j.polymer.2014.06.054
SN  - 0032-3861
SN  - 1873-2291
VL  - 55
IS  - 17
SP  - 4531
EP  - 4537
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - He, Yushuang
A1  - Wang, Feipeng
A1  - He, Li
A1  - Wang, Qiang
A1  - Li, Jian
A1  - Qian, Yihua
A1  - Gerhard, Reimund
A1  - Plath, Ronald
T1  - An insight Into the role of Nano-Alumina on DC Flashover-Resistance and surface charge variation of Epoxy Nanocomposites
JF  - IEEE transactions on dielectrics and electrical insulation
N2  - The addition of nano-Al2O3 has been shown to enhance the breakdown voltage of epoxy resin, but its flashover results appeared with disputation. This work concentrates on the surface charge variation and dc flashover performance of epoxy resin with nano-Al2O3 doping. The dispersion of nano-Al2O3 in epoxy is characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The dc flashover voltages of samples under either positive or negative polarity are measured with a finger-electrode system, and the surface charge variations before and after flashovers were identified from the surface potential mapping. The results evidence that nano-Al2O3 would lead to a 16.9% voltage drop for the negative flashovers and a 6.8% drop for positive cases. It is found that one-time flashover clears most of the accumulated surface charges, regardless of positive or negative. As a result, the ground electrode is neighbored by an equipotential zone enclosed with low-density heterocharges. The equipotential zone tends to be broadened after 20 flashovers. The nano-Al2O3 is noticed as beneficial to downsize the equipotential zone due to its capability on charge migration, which is reasonable to maintain flashover voltage at a high level after multiple flashovers. Hence, nano-Al2O3 plays a significant role in improving epoxy with high resistance to multiple flashovers.
KW  - surface morphology
KW  - Epoxy resins
KW  - Electric potential
KW  - Surface treatment
KW  - Doping
KW  - Epoxy resin
KW  - multiple
KW  - flashover
KW  - nanocomposite
KW  - surface charge
Y1  - 2022
U6  - https://doi.org/10.1109/TDEI.2022.3173510
SN  - 1070-9878
SN  - 1558-4135
VL  - 29
IS  - 3
SP  - 1022
EP  - 1029
PB  - Inst. of Electr. and Electronics Engineers
CY  - Piscataway
ER  -