Effects of ionic liquid on the rheological properties of wood flour/high density polyethylene composites

Rongxian Ou, Yanjun Xie, Qingwen Wang, Shujuan Sui, Michael P. Wolcott

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Wood flour was treated with an ionic liquid, 1-(2-hydroxyethyl)-3- methylimidazolium chloride ([Hemim]Cl), to various weight percent gains. The treating effects on the rheological properties of the resulting wood flour/high density polyethylene (HDPE) blends were investigated using a Haake microcompounder and torque-, capillary-, and rotational-rheometer, respectively. Treatment with [Hemim]Cl caused a decrease in the crystallinity and an improvement in the thermoplasticity of wood flour. At low processing speeds, the melt torque and viscosity increased with increasing [Hemim]Cl content; while at high speed, they decreased or remained the same. [Hemim]Cl can broaden the processing window of wood flour/HDPE composites with stable flow and smooth product surfaces. The dynamic rheological results show that storage and loss moduli and complex viscosity of the composite melts increased with increasing [Hemim]Cl content.

Original languageEnglish (US)
Pages (from-to)134-140
Number of pages7
JournalComposites Part A: Applied Science and Manufacturing
Volume61
DOIs
StatePublished - Jun 2014

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials

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