Interfacial effects in short sisal fiber/maleated castor oil foam composites

Hong Juan Wang, Chun Yuan Zhang, Min Zhi Rong, Ming Qiu Zhang, Tibor Czigány

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In this study, bio-foam composites are produced using short sisal fiber as the reinforcement and modified castor oil as the matrix, respectively. The foam composites with an average cell size of 200 μm possess properties similar to those of commercial polyurethane foams. The effects of fiber loading, fiber length and foam density on the compressive properties of the foam composites are reported in relation to the interfacial interaction. It is found that the addition of chopped sisal alters cell structure of the foam. Surface pre-treatment of sisal by alkali or silane coupling agent helps to improve the mechanical properties and interfacial adhesion. The exposure of the fibers to the gas cells of the foam reduces the effectiveness of interfacial effect, which is different from the case of conventional bulk composites. As a result, the reinforcing ability of sisal fibers becomes a function of fiber length and so on.

Original languageEnglish
Pages (from-to)95-110
Number of pages16
JournalComposite Interfaces
Volume15
Issue number2-3
DOIs
Publication statusPublished - Mar 1 2008

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Keywords

  • Bio-foam composites
  • Castor oil
  • Compressive properties
  • Sisal fiber
  • Surface treatment

ASJC Scopus subject areas

  • Ceramics and Composites
  • Physics and Astronomy(all)
  • Surfaces, Coatings and Films

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