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Influence of the degree of exfoliation on the thermal conductivity of polypropylene nanocomposites
Author(s) -
Laske Stephan,
Duretek Ivica,
Witschnigg Andreas,
Mattausch Hannelore,
Tscharnuter Daniel,
Holzer Clemens
Publication year - 2012
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23121
Subject(s) - materials science , polypropylene , exfoliation joint , thermal conductivity , composite material , nanocomposite , filler (materials) , degree (music) , silicate , conductivity , thermal , graphene , chemical engineering , nanotechnology , chemistry , thermodynamics , physics , acoustics , engineering
The aim of this study was to determine the influence of exfoliated silicate layers on the thermal conductivity of polypropylene nanocomposites. The correlation of thermal conductivity with the degree of exfoliation is examined and compared to common mineral fillers like talcum. The results clearly show that not only the filler content but also the size and number of the main particles (specific surface) influence thermal conductivity significantly. With respect to this, the smaller the particles and the more particles are in the matrix, the higher the increase in thermal conductivity. Compared to common fillers, the increase in thermal conductivity is considerably higher with exfoliated layered silicates and directly depends on the degree of exfoliation. POLYM. ENG. SCI., 2012. © 2012 Society of Plastics Engineers