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May 16-17, 2019 | Prague, Czech Republic
2
nd
International Conference on
22
nd
International Conference on
Nanomaterials and Nanotechnology
Advanced Nanoscience and Nanotechnology
Joint Event
&
Journal of Materials Science and Nanotechnology | Volume 3
Mater Sci Nanotechnol, Volume 3
High thermal conductivity materials containing graphene and carbon nanotubes
Phan Ngoc Minh
1
, Bui Hung Thang
1
, Nguyen Trong Tam
1
, To Anh Duc
2
, Mai Thi Phuong
2
, Pham Van Trinh
1
, Phan
Ngoc Hong
1
, Nguyen Huu Hong
1
and
Phan Hong Khoi
1
1
Vietnam Academy of Science and Technology, Vietnam
2
VNU University of Engineering and Technology, Vietnam
R
ecently, there are a lot of interest in utilizing high
thermal conductivity materials for heat dissipation in
high power electronic components, devices and apparatus.
Graphene (Gr) and Carbon nanotubes (CNTs) are known as
excellent additives for thermal materials because their very
high thermal conductivity. In this report, we present our
obtained results on synthesis and application of high thermal
conductivity materials including nano thermal greases,
nanofluids and nano-lubrication oils containing Graphene
and CNTs. The experimental results on adding CNTs and Gr
into thermal greases showed that the thermal conductivity
of CNTs and Graphene thermal greases increased 80%
and 230% compare to normal greases, respectively. When
using CNTs thermal greases and Graphene thermal greases
in heat dissipation for Intel Pentium Core i5, the saturation
temperature of the CPU decreased 3
o
C and 6
o
C, respectively.
Nanoliquids containing Graphene and CNTs based distilled
water/ethylene glycol (DW/EG) were successfully applied
in heat dissipation for Intel Core-i5 processor and 450 W
Floodlight LED. The experimental results showed that the
saturation temperature of the Intel Core-i5 processor and
450 W Floodlight LED decreased about 6
o
C and 3.5
o
C when
using nanoliquids, respectively. The CNTs was also effectively
utilized as additive material for synthesis of lubricating oils to
improve the thermal conductivity, heat dissipation efficiency
and performance efficiency of the engine. The experimental
results show that the thermal conductivity of lubricating oils
increased 12.5%, the engine saved 15% fuel consumption,
and the longevity of the lubricating oil increased upto
20,000 km by using 0.1% vol. CNTs in the lubricating oils.
The all obtained results confirmed the advantages of heat
conductive materials containing Graphene and CNTs in
thermal management for high power electronic devices,
internalcombustionenginesandotherhigh-powerapparatus.
e
:
pnminh@vast.vn