Microfoams based on castor oil polyurethanes and vegetable fibers

Mirta I. Aranguren, Ilona Rácz, Norma E. Marcovich

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

This work was focused on the production and characterization of microcellular polyurethane (PU) composites reinforced with pine wood-fibers or with hemp, which can be applied to the manufacture of car interior panels, or acoustic insulation panels for the construction industry. The polymers selected for the study were crosslinked PUs, synthesized from a castor oil-based polyol, with the formulations adjusted to obtain different foaming levels. Microfoamed composites with preferential orientation were prepared from long hemp fibers. Also, samples with random arrangement of short hemp and wood fibers were obtained. The morphology of the composites was analyzed by scanning electron microscopy. The mechanical performance of the reinforced foams was studied through three point bending and dynamic mechanical tests.

Original languageEnglish
Pages (from-to)2791-2800
Number of pages10
JournalJournal of Applied Polymer Science
Volume105
Issue number5
DOIs
Publication statusPublished - Sep 5 2007

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Keywords

  • Ageing
  • Composites
  • Fibers
  • Mechanical properties
  • Polyurethanes

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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