Effect of surface treatment on electrical conductivity of carbon black filled conductive polymer composites

Koysuren O., Yesil S., Bayram G.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.104, no.5, pp.3427-3433, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 104 Issue: 5
  • Publication Date: 2007
  • Doi Number: 10.1002/app.25931
  • Journal Name: JOURNAL OF APPLIED POLYMER SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3427-3433
  • Keywords: nylon, composites, conducting polymers, ESCA/XPS, polyethylene, MECHANICAL-PROPERTIES, NYLON-6, NANOCOMPOSITES, POLYAMIDE-6, PERFORMANCE, ENERGY, VAPOR
  • Middle East Technical University Affiliated: Yes

Abstract

Two different types of surface modifiers, 3-aminopropyltriethoxysilane and formamide, were applied to carbon black (CB) particles to lower electrical resistivity of polymer composites prepared by treated CB. Two different matrices, low-density polyethylene and nylon 6, were chosen to compound with surface modified CB. Surface energy of CB was increased by adding amine or amide functional groups during surface treatment of CB. According to electron spectroscopy for chemical analysis (ESCA), chemical modification in surface chemistry of CB was obtained with the chemicals used for the treatment due to the nitrogen atoms in their structures, which may act is dopant atom. As a result of this, electrical resistivity of composites prepared by treated CB decreased. In addition, there was not any significant change in tensile strength and tensile modulus of the composites with the surface treatment. (c) 2007 Wiley Periodicals, Inc.