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Laminating wood fiber mats into a densified material with high performanceAuthor(s): Jinguang Wei; Fei Rao; Yahui Zhang; Wenji Yu; Chung Hse; Todd Shupe
Source: Materials Letters
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
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DescriptionTo 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.
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CitationWei, 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.
KeywordsComposite materials, Wood fiber mats, Microstructure, Mechanical properties, Water resistance
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