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  1. Modern Instrumental Methods to Investigate the Mechanism of Biological Decay in Wood Plastic Composites

    Various instrumental techniques were used to study the fungal decay process in wood plastic composite (WPC) boards. Commercial boards exposed near Hilo, Hawaii (HI) for eight years in both sun and shadow locations were inspected and tested periodically. After eight years of exposure, both boards were evaluated using magnetic resonance imaging (MRI), while a selected...

    Author(s):
    Grace Sun; Rebecca Ibach; Marek Gnatowski; Jessie Glaeser; Mathew Leung; John Haight
    Year:
    2014
    Keywords:
    computed tomography, exterior exposure, magnetic resonance imaging, microstructure, mositure content, scanning electron microscopy, soil block culture test, water absorption, wood pllastic composite, viod analysis
    Source:
    IRG/WP 14-40674, The international Research Group on Wood Protection, section 4, Processes and properties, Paper prepared for the 45th IRG Annual Meeting, St George, Utah, USA, 11-15 May 2014; pp. 2-20;.

  2. Durability of Capped Wood Plastic Composites

    Manufacturers of wood plastic composites (WPCs) have recently introduced capped decking to their product lines. These new materials have begun to take market share from the previous generation of uncapped products that possessed a homogenous composition throughout the thickness of their cross-section. These capped offerings have been introduced with claims that the...

    Author(s):
    Mark Mankowski; Mark J. Manning; Damien P. Slowik
    Year:
    2015
    Keywords:
    wood plastic composites, (WPC), capped decking, durability, biological degradation
    Source:
    In: Proceedings One hundred eleventh annual meeting of the American wood protection association, the Omni Grove Park Inn, Asheville North Carolina April 12-14, 2015 Volume 111; p 124-132;

  3. Laboratory and exterior decay of wood plastic composite boards: voids analysis and computed tomography

    After exposure in the field and laboratory soil block culture testing, the void content of wood–plastic composite (WPC) decking boards was compared to unexposed samples. A void volume analysis was conducted based on calculations of sample density and from micro-computed tomography (microCT) data. It was found that reference WPC contains voids of different sizes from...

    Author(s):
    Grace Sun; Rebecca E. Ibach; Meghan Faillace; Marek Gnatowski; Jessie A. Glaeser; John Haight
    Year:
    2016
    Keywords:
    CT, exterior exposure, fungi, microstructure, scanning electron microscopy, soil block culture test weathering
    Source:
    Wood Material Science & Engineering

  4. Exterior Decay of Wood-Plastic Composite Boards: Characterization and Magnetic Resonance Imaging

    Magnetic resonance imaging (MRI) was used to evaluate free water content and distribution in wood-plastic composite (WPC) materials decayed during exterior exposure near Hilo, Hawaii. Two segments of the same board blend were selected from 6 commercial decking boards that had fungal fruiting bodies. One of the two board segments was exposed in sun, the other in shadow...

    Author(s):
    Rebecca Ibach; Grace Sun; Marek Gnatowski; Jessie Glaeser; Mathew Leung; John Haight
    Year:
    2016
    Keywords:
    magnetic resonance imaging, MRI, scanning electron microscopy, SEM, woodplastic, composites, WPC, moisture, decay, fungi, density
    Source:
    Forest Products Journal
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