Study of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/bamboo pulp fiber composites: Effects of nucleation agent and compatibilizer

Long Jiang, Jijun Huang, Jun Qian, Feng Chen, Jinwen Zhang, Michael P. Wolcott, Yawei Zhu

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

In this study, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/ bamboo pulp fiber (BPF) composites were prepared by melt compounding and injection molding. The crystallization ability, tensile strength and modulus, flexural strength and modulus, and impact strength were found substantially increased by the addition of BPF. Tensile and flexural elongations were also moderately increased at low fiber contents (<20%). BPF demonstrated not only higher strength and modulus, but also higher failure strain than the PHBV8 matrix. Boron nitride (BN) was also investigated as a nucleation agent for PHBV8 and maleic anhydride grafted PHBV8 (MA-PHBV8) as a compatibilizer for the composite system. BN was found to increase the overall properties of the neat polymer and the composites due to refined crystalline structures. MA-PHBV8 improved polymer/fiber interactions and therefore resulted in increased strength and modulus. However, the toughness of the composites was substantially reduced due to the hindrance to fiber pullout, a major energy dissipation source during the composite deformation.

Original languageEnglish (US)
Pages (from-to)83-93
Number of pages11
JournalJournal of Polymers and the Environment
Volume16
Issue number2
DOIs
StatePublished - 2008

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Polymers and Plastics
  • Materials Chemistry

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