The effect of organoclay on the mechanical properties and morphology of injection-molded polyamide 6/polypropylene nanocomposites

W. S. Chow, Z. A Mohd Ishak, U. S. Ishiaku, J. Karger-Kocsis, A. A. Apostolov

Research output: Contribution to journalArticle

121 Citations (Scopus)

Abstract

Nanocomposites containing a thermoplastic blend and organophilic layered clay (organoclay) were produced by melt compounding. The blend composition was kept constant [polyamide 6 (PA6) 70 wt% + polypropylene (PP) 30 wt %], whereas the organoclay content was varied between 0 and 10 wt %. The mechanical properties of the nanocomposites were determined on injection-molded specimens in both tensile and flexural loading. Highest strength values were observed at an organoclay content of 4 wt % for the blends. The flexural strength was superior to the tensile one, which was traced to the effect of the molding-induced skin-core structure. Increasing organoclay amount resulted in severe material embrittlement reflected in a drop of both strength and strain values. The morphology of the nanocomposites was studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersion X-ray analysis (EDX), and X-ray diffraction (XRD). It was established that the organoclay is well dispersed (exfoliated) and preferentially embedded in the PA6 phase. Further, the exfoliation degree of the organoclay decreased with increasing organoclay content.

Original languageEnglish
Pages (from-to)175-189
Number of pages15
JournalJournal of Applied Polymer Science
Volume91
Issue number1
DOIs
Publication statusPublished - Jan 5 2004

Fingerprint

Organoclay
Polypropylenes
Polyamides
Nanocomposites
Mechanical properties
X ray analysis
Embrittlement
nylon 6
Molding
Bending strength
Thermoplastics
Skin
Clay
Transmission electron microscopy
X ray diffraction
Scanning electron microscopy
Chemical analysis

Keywords

  • Nanocomposite
  • Organoclay
  • Polyamide
  • Polypropylene

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

The effect of organoclay on the mechanical properties and morphology of injection-molded polyamide 6/polypropylene nanocomposites. / Chow, W. S.; Ishak, Z. A Mohd; Ishiaku, U. S.; Karger-Kocsis, J.; Apostolov, A. A.

In: Journal of Applied Polymer Science, Vol. 91, No. 1, 05.01.2004, p. 175-189.

Research output: Contribution to journalArticle

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