Effect of Continuous Multi-Walled Carbon Nanotubes on Thermal and Mechanical Properties of Flexible Composite Film.
To investigate the effect of continuous multi-walled carbon nanotubes (MWCNTs) on the thermal and mechanical properties of composites, we propose a fabrication method for a buckypaper-filled flexible composite film prepared by a two-step process involving buckypaper fabrication using vacuum filtration of MWCNTs, and composite film fabrication using the dipping method. The thermal conductivity and tensile strength of the composite film filled with the buckypaper exhibited improved results, respectively 76% and 275% greater than those of the individual MWCNT-filled composite film. It was confirmed that forming continuous MWCNT fillers is an important factor which determines the physical characteristics of the composite film. In light of the study findings, composite films using buckypaper as a filler and polydimethylsiloxane (PDMS) as a flexible matrix have sufficient potential to be applied as a heat-dissipating material, and as a flexible film with high thermal conductivity and excellent mechanical properties.
Multifunctional Structural Composite Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk 55324, Korea. t15002@kist.re.kr.|Department of Bio, Information and Nano (BIN) Fusion Technology, Chonbuk National University, 664-14 Dukjin-gu, Jeonju-si, Jeonbuk 54896, Korea. t15002@kist.re.kr.
Ji Eun
JE
Cha
Multifunctional Structural Composite Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk 55324, Korea. sykim82@kist.re.kr.
Seong Yun
SY
Kim
Department of Bio, Information and Nano (BIN) Fusion Technology, Chonbuk National University, 664-14 Dukjin-gu, Jeonju-si, Jeonbuk 54896, Korea. lsh1@jbnu.ac.kr.
Seung Hee
SH
Lee
carbon nanotube; composite; film; mechanical strength; thermal conductivity