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The Micro-meter-sized plastic texture made by PVC with carbon black and AC electric field to enhance thermal conductivity

The Proceedings of the Conference on Information Intelligence and Precision Equipment IIP 2022
Liying Zhang, Takayuki TOKOROYAMA, Yusei Yamada, Motoyuki Murashima, Noritsugu Umehara

Summary

This study created a micropatterned PVC-carbon black texture using high-voltage electric fields, achieving a surface with significantly enhanced thermal conductivity. The research explores how surface microstructure engineering can improve heat transfer properties in plastic materials.

Polymers
PVC

In this study, we created a microplastic texture by a mixture of PVC (polyvinyl chloride)-acetone and carbon black (CB) solution at an alternative high voltage. The results showed that the contact angle when high voltage of 2 kV was applied was greater than that when no voltage was applied, and the surface contact angle showed a maximum of 142° when the CB concentration was 1.5 wt.% and the applied frequency was 0 Hz, while the surface head convex structure was found when the CB was 1.5 wt.% at 10 Hz when observed by field emission scanning electron microscopy (FE-SEM). And it was found that the surface spherical structure was sharper when the frequency was applied at 10 Hz than 5 Hz.

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