Nanoclay assisted strengthening of the fiber/matrix interface in functionally filled polyamide 6 composites

Isitman N. A., AYKOL M., KAYNAK C.

COMPOSITE STRUCTURES, cilt.92, sa.9, ss.2181-2186, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 92 Sayı: 9
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.compstruct.2009.09.007
  • Dergi Adı: COMPOSITE STRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2181-2186
  • Anahtar Kelimeler: Nanocomposite, Interface, Short glass fiber, Nanoclay, Polyamide 6, Flame retardant, FIBER-REINFORCED POLYAMIDE-6, X-RAY-DIFFRACTION, GLASS-FIBER, SILICATE NANOCOMPOSITES, MECHANICAL-PROPERTIES, DISCONTINUOUS FIBERS, FLAME-RETARDANT, PART II, MATRIX, THERMOPLASTICS
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

This study describes the contribution of a nano-filler, i.e. an organically modified layered silicate, in respect of the fiber/matrix interfacial shear strength (IFSS) of a short glass fiber reinforced and functionally filled polyamide 6, given an exfoliated nanocomposite morphology. Apparent IFSS values are determined using a continuum micromechanical method. Polymer chains in the nanoconfined environment of an exfoliated clay nanocomposite are found to crystallize preferentially in the form of a specific crystalline phase with increased degree of crystallinity. Strong dependence of IFSS on polymer crystallinity is found which is related to enhanced shrinkage stresses associated with increased degree of crystallinity. (C) 2009 Elsevier Ltd. All rights reserved.