Electrical conductivity of PEEK/carbon fiber composites modified by metal and carbon microfillers

The manuscript presents the results on electrical conductivity measurement and mechanical properties of prepreg-based thermoplastic carbon fiber reinforced composites modified by microfillers. Milled carbon fibers as well as copper and nickel micropowders have been used during moulding. It was shown that milled carbon fibers provide negative results reducing both mechanical properties and electrical conductivity. Nickel and copper micropowders positively influence the electrical properties: the increase of conductivity measured as 12-40%. While the tensile properties are positively affected, flexural and interlaminar are tending to reduce.