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Fabrication of graphene/epoxy resin composites with much enhanced thermal conductivity via ball milling technique
Author(s) -
Guo Wenman,
Chen Guohua
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40565
Subject(s) - materials science , composite material , epoxy , graphene , thermal conductivity , scanning electron microscope , graphite , transmission electron microscopy , ball mill , fabrication , raman spectroscopy , exfoliated graphite nano platelets , conductivity , nanotechnology , chemistry , medicine , alternative medicine , physics , pathology , optics
Ball milling is selected to prepare composites of graphene nanoplatelets (GNPs) and epoxy. Much enhanced thermal conductivity was recorded with higher GNP loading, which varied between 5 and 25 wt %. A maximum thermal conductivity of 2.67 W/m·K was found. The prepared composites were characterized by scanning electron microscopy, transmission electron microscopy, and Raman. It was found that KNG180, a commercially available kind of natural graphite, with a thickness of 30 ∼ 80 nm were mainly exfoliated into GNPs (<10 layers) with high quality, which were in turn uniformly dispersed in the composites. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40565.
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