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E u r o S c i C o n C o n f e r e n c e o n
Nanotechnology &
Smart Materials
Nano Research & Applications
ISSN 2471-9838
O c t o b e r 0 4 - 0 6 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
Nanotechnology & Smart Materials 2018
Page 30
High voltage cables have been widely applied for large-scale power transmis-
sion. Polymeric insulation materials have been widely used in electric power
systems for their low density, low dielectric strength, ease of processing and most
importantly, low cost. As a cable insulationmaterial, the thermal, mechanical, ther-
mo-mechanical and electrical properties should be considered. In this presenta-
tion, the effect of various nanoparticles on the electrical properties of insulation
polymers is presented. The introduction of nanoparticles can effectively suppress
space charge accumulation in polymeric nanocomposites and increase the DC
breakdown strength. The interface between nanoparticles and polymer matrix is
considered to have an important effect on the properties of nanocomposites, this
presentation also introduced the tuning effects of surface-modified nanoparticles
on the aggregation structure and trapping property of the nanocomposites, the ad-
dition of nanoparticles can suppress the mobility of chain segments in the interfa-
cial region, suppress crystallization and reduce the crystallinity, depending on the
surface modification and loading levels of nanoparticles. The strong correlation
between traps and the charge transport of nanocomposites and themechanismof
charge transport are discussed, the electrostatic forcemicroscopy tests show that
the addition of nanoparticles leads to a decrease in local permittivity, it is found the
mobility of local chain segments in the interface suppressed by the nanoparticles
can influence the dipolar polarization of chain segments in the interface and even-
tually results in a decrease in local permittivity
Biography
Jinliang He has received his PhD degree from Tsinghua Univer-
sity, Beijing, China, in 1994. He became a Lecturer in 1994 and
an Associate Professor in 1996 in the Department of Electrical
Engineering, Tsinghua University. From 2014 to 2015, he was
a Visiting Professor in Stanford University. Currently, he is the
Chair of the High Voltage Research Institute, Tsinghua Univer-
sity. His research interests include dielectric material, smart
sensors and big data application. He is the author of 7 books
and 600 technical papers and is an Associate Editors of IEEE
Trans on Dielectrics and Electrical Insulation, IEEE Trans. on
Power Delivery.
Nanoparticles tailored high voltage
insulation materials
Jinliang He
Tsinghua University, China
Jinliang He, Nano Res Appl Volume:4
DOI: 10.21767/2471-9838-C6-024