Enhancement of the heat conduction performance of boron nitride/cellulosic fibre insulating composites - Fig 2

<p>(a)FTIR spectra and (b)TGA curves of pristine h-BN and surface modified h-BN.</p

Enhancement of the heat conduction performance of boron nitride/cellulosic fibre insulating composites - Fig 4

<p>Schematic diagram of the filler distribution within the BN/cellulosic fibre composite (a) No heat-conductive pathway at low filler loading (b) Heat-conductive pathways gradually formed at high filler loading (c) More compact and integrated heat-conductive pathways with dual-size filler.</p

Enhancement of the heat conduction performance of boron nitride/cellulosic fibre insulating composites - Fig 5

<p>The effects of filler loading on (a) Relative permittivity and dielectric loss angle tangent (b) breakdown strength (c) Volume resistivity.</p

Enhancement of the heat conduction performance of boron nitride/cellulosic fibre insulating composites - Fig 6

<p>SEM images of (a) surface and (b) cross-section of composite with 11.5wt% filler loading; SEM images of (c) surface and (d) cross-section of composite with 41.1wt% filler loading.</p

Characteristics of h-BN fillers in different samples.

<p>Characteristics of h-BN fillers in different samples.</p

Enhancement of the heat conduction performance of boron nitride/cellulosic fibre insulating composites - Fig 3

<p>(a) The thermal conductivity of the composites with different BN fillers (b) Schematic diagram of the hydrogen bond between fillers and cellulosic fibres.</p