Synergistic improvement of thermal conductivity of thermoplastic composites with mixed boron nitride and multi-walled carbon nanotube fillers
- Synergistic improvement of thermal conductivity of thermoplastic composites with mixed boron nitride and multi-walled carbon nanotube fillers
- 박성열; 김형민; 김성륜; 윤재륜
- Issue Date
- VOL 50, NO 13, 4830-4838
- The thermal conductivity of composites with a polyphenylene sulfide (PPS) matrix and a
mixture of boron nitride (BN) power and multi-wall carbon nanotube (MWCNT) fillers
was investigated. Synergistic improvement in thermal conductivity of the composite was
observed due to the generation of three-dimensional thermal transfer pathways between
the BN and MWCNT. The improvement strongly depended on surface treatment of the
MWCNTs, such as hydrogen peroxide and acid treatments. The thermal conductivity of
the composite was affected by the interaction and interfacial thermal resistance between
the PPS matrix and the MWCNTs. The maximum thermal conductivity achieved was
1.74 W/mK for a composite that was pelletizable, injection moldable, and thermally conductive
with low electrical conductivity and good mechanical properties.
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