8 / 29
Page 42
Notes:
conferenceseries
.com
Volume 6
Research & Reviews: Journal of Material Sciences
Advanced Materials 2018
September 19-21, 2018
September 19-21, 2018 Tokyo, Japan
22
nd
International Conference on
Advanced Materials and Nanotechnology
Junghoon Kim et al., Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C4-024
Multifunctional superhydrophobic surfaces with carbon nanotubes by direct patterning of
conducting pastes
Junghoon Kim, Joon Young Cho, Hee Jin Jeong, Seung Yol Jeong, Seon Hee Seo, Geon Woong Lee and Joong Tark Han
Korea Electrotechnology Research Institute, Republic of Korea
C
arbon nanomaterials have been used in various applications like electro-wetting, static charge dissipation and electrical
circuits. Carbon nanomaterials such as Carbon Nanotubes (CNTs), graphene, graphite and carbon fibers have been
utilized to fabricate electrically conducting and superhydrophobic surfaces because of their ability to remove the static
charges accumulated on surfaces. The directly printed superhydrophobic surfaces containing conducting nanomaterials can
be used for a wide range of applications in terms of non-wetting, anisotropic wetting, and electrical conductivity. Here, we
demonstrated that direct-printable and flexible superhydrophobic surfaces were fabricated on flexible substrates via with an
ultra-facile and scalable screen printing with Carbon Nanotube (CNT)-based conducting pastes. A polydimethylsiloxane
(PDMS)-Polyethylene Glycol (PEG) copolymer was used as an additive for conducting pastes to realize the printability of the
conducting paste as well as the hydrophobicity of the printed surface. The screen-printed conducting surfaces showed a high
water contact angle (WCA) (>150°) and low contact angle hysteresis (WCA <5°) at 25 wt% PDMS-PEG copolymer in the
paste, and they have an electrical conductivity of over 1000 S m-1. Patterned superhydrophobic surfaces also showed sticky
superhydrophobic characteristics and were used to transport water droplets. Moreover, fabricated films on metal meshes were
used for an oil/water separation filter.
Biography
Junghoon Kim has completed his Master’s degree from Kumoh National Institute of Technology, Republic of Korea . Currently, he is a Researcher of Korea
Electrotechnology Research Institute.
kjh40210@keri.re.kr