Effect of composite preparation techniques on electrical and mechanical properties and morphology of nylon 6 based conductive polymer composites

Koysuren O., Yesil S., Bayram G.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.102, no.3, pp.2520-2526, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 102 Issue: 3
  • Publication Date: 2006
  • Doi Number: 10.1002/app.24654
  • Journal Name: JOURNAL OF APPLIED POLYMER SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2520-2526
  • Keywords: carbon black, nylon 6, composites, electrical resistivity, mechanical properties, CARBON, BLENDS
  • Middle East Technical University Affiliated: Yes

Abstract

Nylon 6/carbon black conductive composites were prepared using two different methods, masterbatch dilution and melt mixing. Their effect on the size and distribution of carbon black agglomerates in the matrix was studied in terms of electrical and mechanical properties and morphology. The electrical resistivity of composites prepared by both methods decreased with increasing filler composition. The electrical resistivity of the diluted masterbatch composites and the melt mixed composites was reduced from the resistivity of pure nylon 6, 10(15) "ohm, cm", to 107 "ohm, cm" at 1 and 6 wt % of carbon black, respectively. As the filler content increased, elongation at break and impact strength decreased, but tensile modulus increased. Masterbatch dilution method provided smaller carbon black clusters in composites compared to melt mixing method. (c) 2006 Wiley Periodicals, Inc.