High thermal conductivity in anisotropic aligned polymeric materials

Xinglong Pan; Michael G. Debije; Albert P.H.J. Schenning

doi:10.1021/acsapm.0c01340

High thermal conductivity in anisotropic aligned polymeric materials

Xinglong Pan, Michael G. Debije (Corresponding author), Albert P.H.J. Schenning (Corresponding author)

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Because of their low density, high electrical resistivity, and ease of processing, thermally conductive, anisotropic polymers are appealing for thermal management in applications related to personal comfort, sports, electronics, and optics. In this review, we discuss thermal transport in the different classes of anisotropic polymer fibers and films. The role of crystallinity, chain orientation, draw ratio, temperature, and chain length/molecular weight of these materials on the thermal transport will be discussed. A special emphasis is devoted to structure–property relationships and the influence of phonon scattering. Finally, some key challenges and future prospects of the anisotropic thermally conductive polymers and their use in devices are discussed.

Original language	English
Pages (from-to)	578-587
Journal	ACS Applied Polymer Materials
Volume	3
Issue number	2
DOIs	https://doi.org/10.1021/acsapm.0c01340
Publication status	Published - 2021

Keywords

anisotropic polymers
chain orientation
draw ratio
phonon scattering
thermal conductivity
thermal management

Access to Document

10.1021/acsapm.0c01340

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AB - Because of their low density, high electrical resistivity, and ease of processing, thermally conductive, anisotropic polymers are appealing for thermal management in applications related to personal comfort, sports, electronics, and optics. In this review, we discuss thermal transport in the different classes of anisotropic polymer fibers and films. The role of crystallinity, chain orientation, draw ratio, temperature, and chain length/molecular weight of these materials on the thermal transport will be discussed. A special emphasis is devoted to structure–property relationships and the influence of phonon scattering. Finally, some key challenges and future prospects of the anisotropic thermally conductive polymers and their use in devices are discussed.

KW - anisotropic polymers

KW - chain orientation

KW - draw ratio

KW - phonon scattering

KW - thermal conductivity

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