Fire retardancy effect of migration in polypropylene nanocomposites induced by modified interlayer

Gy Marosi, A. Márton, A. Szép, I. Csontos, S. Keszei, E. Zimonyi, A. Toth, X. Almeras, M. Le Bras

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

Montmorillonite nanoparticles were found to be inefficient in polypropylene because of the lack of a heat insulating char layer and the decomposition of the compatibilising surfactant layer on their surface. Combination with an ammonium polyphosphate-based intumescent system showed some synergism due to modified rheology. The effect of surface and interface modification was analysed using Raman microscopy and X-ray photoelectron spectroscopy. Forming a heat resistant coating layer of low surface energy around the nanoparticles promotes their migration to the surface and formation of a flexible barrier layer, and thus leads to better performance.

Original languageEnglish
Pages (from-to)379-385
Number of pages7
JournalPolymer Degradation and Stability
Volume82
Issue number2
DOIs
Publication statusPublished - Oct 21 2003

Keywords

  • Flame retartdant
  • Nanoparticles

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry

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