Laminating wood fiber mats into a densified material with high performance

  • Authors: Wei, Jinguang; Rao, Fei; Zhang, Yahui; Yu, Wenji; Hse, Chung; Shupe, Todd
  • Publication Year: 2019
  • Publication Series: Scientific Journal (JRNL)
  • Source: Materials Letters
  • DOI: 10.1016/j.matlet.2019.06.097

Abstract

To develop high-performance wood materials, a novel preparation strategy is presented in this study. Wood fiber mats impregnated with phenolic resin, were laminated into a densified material. Wood lumens collapsed layer by layer during densification, leading to a compact multi-layered structure. The densified material had excellent mechanical properties and favorable water resistance. The flexural, compressive, and short-beam shearing strength were approximately 230%, 400%, and 260% higher than that of natural wood, respectively. The water absorption rate and thickness swelling rate in boiled water were 19% and 5.7%, respectively. Surface water repellency was also enhanced due to reduction of hydrophilic groups on the surface. Such high performance makes the material a promising candidate for advanced engineering structures and applications.

  • Citation: Wei, Jinguang; Rao, Fei; Zhang, Yahui; Yu, Wenji; Hse, Chung; Shupe, Todd. 2019. Laminating wood fiber mats into a densified material with high performance. Materials Letters. 253: 358-361. https://doi.org/10.1016/j.matlet.2019.06.097.
  • Keywords: Composite materials, Wood fiber mats, Microstructure, Mechanical properties, Water resistance
  • Posted Date: August 15, 2019
  • Modified Date: August 21, 2019
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