Open AccessA study on the thermal conductivity of multiwalled carbon nanotube/polypropylene composite
Author(s) -
Jianli Wang,
Guoping Xiong,
Gu Ming,
Xing Zhang,
Liang Ji
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.4536
Subject(s) - materials science , polypropylene , composite material , composite number , thermal conductivity , nanotube , carbon nanotube , styrene butadiene , ternary operation , nanocomposite , conductivity , polymer , styrene , copolymer , chemistry , computer science , programming language
A convenient 3ω method was developed to measure the thermal conductivity of multiwalled carbon nanotube/polypropylene MWCNT/PP compositein which the metal strip heater was substituted for a platinum wireand the commercial lock-in amplifier was replaced by a Labview-based virtual measurement system. The experimental result showed thatthe thermal conductivity of multiwalled carbon nanotube/styrene-butadiene rubber/polypropylene MWCNT/SBR/PP ternary composite varied slightly with MWCNT/SBR powder loading; the thermal conductivity of MWCNT/PP composite increased with the increasing MWCNT loading; the composite thermal conductivity was far less than that expected from the law of mixturesbut in good agreement with the effective medium approach by incorporating the thermal interfacial resistance between the MWCNT and the surrounding polymer matrix.