Development of natural fibre reinforced flame retarded epoxy resin composites

Beáta Szolnoki, Katalin Bocz, Péter L. Sóti, Brigitta Bodzay, Emese Zimonyi, Andrea Toldy, Bálint Morlin, Krzysztof Bujnowicz, Maria Wladyka-Przybylak, György Marosi

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

Natural hemp fabric reinforced epoxy resin composites were prepared in flame retarded form. Fabrics were treated in three ways: the first method involved the immersion of preheated fabric into cold phosphoric acid solution (allowing penetration into the capillaries of the fibres) and subsequent neutralization, the second way was a reactive modification carried out with an aminosilane-type coupling agent, while the third treatment combined the sol-gel surface coating with the first method. The introduction of phosphorus into the reinforcing fibres decreased the flammability not only of the hemp fabrics, but also of the epoxy composites made thereof. By applying amine-type phosphorus-containing curing agent (TEDAP) in combination with the treated fabrics, V-0 UL-94 rating was achieved. Composites of unexpectedly improved static and dynamic mechanical properties could be prepared only when the simple phosphorous fibre treatment and reactive flame retardancy was combined.

Original languageEnglish
Pages (from-to)68-76
Number of pages9
JournalPolymer Degradation and Stability
Volume119
DOIs
Publication statusPublished - Sep 1 2015

Keywords

  • Epoxy resin
  • Flame retardancy
  • Mechanical properties
  • Natural fibre reinforcement
  • Surface treatment

ASJC Scopus subject areas

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

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  • Cite this

    Szolnoki, B., Bocz, K., Sóti, P. L., Bodzay, B., Zimonyi, E., Toldy, A., Morlin, B., Bujnowicz, K., Wladyka-Przybylak, M., & Marosi, G. (2015). Development of natural fibre reinforced flame retarded epoxy resin composites. Polymer Degradation and Stability, 119, 68-76. https://doi.org/10.1016/j.polymdegradstab.2015.04.028