3D-printable, highly conductive hybrid composites employing chemically-reinforced, complex dimensional fillers and thermoplastic triblock copolymers.

Citation data:

Nanoscale, ISSN: 2040-3372, Vol: 9, Issue: 16, Page: 5072-5084

Publication Year:
2017
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Repository URL:
http://scholarworks.unist.ac.kr/handle/201301/21990
PMID:
28181617
DOI:
10.1039/c6nr09610g
Author(s):
Jo, Yejin, Kim, Ju Young, Kim, So-Yun, Seo, Yeong-Hui, Jang, Kwang-Suk, Lee, Su Yeon, Jung, Sungmook, Ryu, Beyong-Hwan, Kim, Hyun-Suk, Park, Jang-Ung, Choi, Youngmin, Jeong, Sunho Show More Hide
Publisher(s):
Royal Society of Chemistry (RSC), The Royal Society of Chemistry, ROYAL SOC CHEMISTRY
Tags:
Materials Science
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article description
The use of 3-dimensional (3D) printable conductive materials has gained significant attention for various applications because of their ability to form unconventional geometrical architectures that cannot be realized with traditional 2-dimensional printing techniques. To resolve the major requisites in printed electrodes for practical applications (including high conductivity, 3D printability, excellent adhesion, and low-temperature processability), we have designed a chemically-reinforced multi-dimensional filler system comprising amine-functionalized carbon nanotubes, carboxyl-terminated silver nanoparticles, and Ag flakes, with the incorporation of a thermoplastic polystyrene-polyisoprene-polystyrene (SIS) triblock copolymer. It is demonstrated that both high conductivity, 22 939 S cm, and low-temperature processability, below 80 °C, are achievable with the introduction of chemically anchored carbon-to-metal hybrids and suggested that the highly viscous composite fluids employing the characteristic thermoplastic polymer are readily available for the fabrication of various unconventional electrode structures by a simple dispensing technique. The practical applicability of the 3D-printable highly conductive composite paste is confirmed with the successful fabrication of wireless power transmission modules on substrates with extremely uneven surface morphologies.

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