Influence of graphite on electrical properties of polymeric composites

• Autorzy: Szczepanik M. , Stabik J. , Łazarczyk M. , Dybowska A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this work was to prepare polymeric composite materials with different contents of graphite and to search the influence of graphite on electrical properties of these materials. Design/methodology/approach : Five specimens were prepared using gravity casting method. Composites with epoxy resin as a matrix and with respectively 3, 6, 9 and 12%vol of graphite PV60/65 as a filler were cast. Surface resistivity was applied as a measure of electrical properties. The idea of the test was to define electrical resistivity in sequential layers with different content of conductive component (graphite). First, specimen's thickness was measured and electrical resistivity was tested. Next, outer layer was removed by grinding and electrical measurements performed. The procedure was repeated for all subsequent layers. In effect surface and volume resistivity dependence on depth of the layer was determined. Findings: The experimental results demonstrated that addition of conductive filler (graphite) to epoxy resin caused change of surface and volume resistivity of these materials. Research limitations/implications: Further investigations with higher carbon content and/or with different matrix are needed. Practical implications: Addition of 3-6%vol. of graphite to epoxy resin caused limited, almost linear, decrease of surface resistivity in depth direction of specimens. Higher content of filler (9-12%vol) in polymeric composite caused rapid, non-linear with layer depth, decrease of surface and volume resistivity. Originality/value: This paper is original because in the research programme gravitational casting was used to prepare polymeric composite materials with gradient of electrical properties.

Słowa kluczowe

EN

electrical properties; polymeric composite materials; graphite; filler

PL

właściwości elektryczne; kompozyty z tworzyw sztucznych; grafit; napełniacze

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2009
• Tom: Vol. 37, nr 1
• Strony: 37--44
• Opis fizyczny: Bibliogr. 35 poz.

Twórcy

autor

Szczepanik M.

autor

Stabik J.

autor

Łazarczyk M.

autor

Dybowska A.

• Division of Metal and Polymer Materials Processing, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

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