Characteristics and Development of PP/VGCF Nano-composite Film with Highly Orientated Vapor Grown Carbon Nanofibers

Abstract

To manufacture the highly functional micro devices by hot embossing, polypropylene (pp)/vapor grown carbon nanofiber (VGCF) composite film with orientated VGCF in matrix by rolling and extrusion methods were developed. Furthermore, mechanical properties, thermal properties and volume resistivity of nano-composite film were investigated. In composite film reinforced with 30wt% VGCF and rolled to 80%, high tensile strength equivalent to an engineering plastic (PEEK) were achieved. This was due to the increasing VGCF content, the existence of orientated VGCF and decreasing of defects which exist on surface of composite film and at the interface between VGCF and pp matrix. Also, volume resistivity was decreased with increasing of VGCF content. And the storage modulus was increased by the increasing VGCF content.