Effect of clay modification on the mechanism of local deformations in PA6 nanocomposites

Zita Dominkovics, Elodie Naveau, Christine Jérôme, Jõzsef Hári, Károly Renner, J. Móczó, Michaël Alexandre, B. Pukánszky

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

PA nanocomposites are prepared from clays organophilized with a phosphonium and an ammonium salt, and sodium montmorillonite is used as reference. The analysis of mechanical and micromechanical properties of the composites reveal that several micromechanical deformation processes occur in the PA/MMT composites. The matrix cavitates at relatively small stress. Processes related to non-exfoliated clay structural units are initiated at larger stresses. Sound is emitted mainly by the fracture of particles, but debonding may also occur. The plastic deformation of the matrix dominates at larger stresses and deformations. The various local deformations are independent of each other and composite properties are not determined by silicate related processes but by the deformation of the matrix.

Original languageEnglish
Pages (from-to)796-805
Number of pages10
JournalMacromolecular Materials and Engineering
Volume298
Issue number7
DOIs
Publication statusPublished - Jul 2013

Fingerprint

Nanocomposites
Clay
Composite materials
Bentonite
Silicates
Debonding
Clay minerals
Ammonium Compounds
Plastic deformation
Salts
Sodium
Acoustic waves
clay

Keywords

  • acoustic emission
  • mechanical properties
  • microdeformation
  • nanocomposites
  • structure

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Chemical Engineering(all)

Cite this

Effect of clay modification on the mechanism of local deformations in PA6 nanocomposites. / Dominkovics, Zita; Naveau, Elodie; Jérôme, Christine; Hári, Jõzsef; Renner, Károly; Móczó, J.; Alexandre, Michaël; Pukánszky, B.

In: Macromolecular Materials and Engineering, Vol. 298, No. 7, 07.2013, p. 796-805.

Research output: Contribution to journalArticle

Dominkovics, Zita ; Naveau, Elodie ; Jérôme, Christine ; Hári, Jõzsef ; Renner, Károly ; Móczó, J. ; Alexandre, Michaël ; Pukánszky, B. / Effect of clay modification on the mechanism of local deformations in PA6 nanocomposites. In: Macromolecular Materials and Engineering. 2013 ; Vol. 298, No. 7. pp. 796-805.
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