Electrical properties of UHMWPE/graphite nanoplates composites obtained by in-situ polymerization method

Polyolefins Journal

Ludmila Novokshonova¹  Petr Brevnov¹  Natalia Ryvkina¹  Guzel Yukhayeva¹  Igor Chmutin² 

[1] Department of Polymers and Composite Materials, Semenov Institute of Chemical Physics Russian Academy of Sciences, Moscow, Russia;Technological Center of Collective Use, OJSC “Technopark Slava”, Moscow, Russia;

关键词: Ultra-high molecular weight polyethylene;    in-Situ Polymerization;    composite materials;    graphene;    electrical properties;   

DOI  :  10.22063/poj.2016.1384

来源: DOAJ

【 摘 要 】

There are described nanocomposites based on ultra high molecular weight polyethylene and graphite nanoplates prepared by in-situ polymerization method. It is carried out a comprehensive study of electric properties of these composites, including direct current (dc) and alternating current (ac) properties. There is explored dependence of the conductivity and dielectric permeability on filler concentration, temperature, deformation and frequency of electric field. These relationships are compared with those for composites based on other carbon fillers including both nanoscale (carbon nanotubes, carbon black) and micron-sized (graphite, schungite) fillers. More specific electrical properties of investigated materials such as lower percolation threshold and higher dielectric permittivity compared to those for composites based on other carbon fillers are attributed to the plate-like shape of graphite nanoplates. These materials are distinguished also by their high electrical stability against temperature and deformation. Therefore, it makes graphite nanoplates the most preferable conductive filler for some practical applications. Some possible application areas for UHMWPE/graphite nanoplates nanocomposites will be also discussed.

【 授权许可】

Unknown