Development of High Thermally Conductive Flexible Elastomer as a Composite Material of Slide-Ring Material and Plasma-Surface-Modified Boron Nitride Particles: Effect of Plasma-Surface Modification of Boron Nitride Particles

Abstract

We have developed a thermally conductive flexible elastomer as a composite materials with slide-ring (SR) materials and boron nitride (BN) particles surface-modified via plasma in solution. This seems to be a promising materials as a flexible insulator for thermal management. Fourier transform infrared spectrum, Raman spectrum, and X-ray diffraction patterns of BN particles indicate that plasma-surface modification introduces OH functional groups on surface of BN particles. Furthermore, X-ray computed tomography of the composite indicates the plasma-surface modification dramatically improves BN dispersibility in SR.

Fig. 7

X-CT images of the BN/SR composite materials. Cross-sectional images of the 50 mass％ （a） unmodified-BN/SR material and （b） plasma-surface-modified BN/SR material. 3D image of the 50 mass％ （c） unmodified-BN/SR material （d） plasma-surface-modified BN/SR material. Color bars indicate intensity of X-ray scattering.