Qingzheng Cheng

Moisture movement in wood polypropylene composites.

AbstractMoisture movement in an extruded wood polypropylene composite was evaluated by exposure to high humidity and immersion of the material in both fresh and seawater. The saturation moisture content was approximately 20 and 19% when exposed to distilled water and seawater, respectively. The moisture diffusion coefficient (Dm) of thin specimens exposed to high humidity was 3.4 × 10−8 cm2

Mechanical Performances of Wood Polypropylene Composite due to Extended Moisture Immersion

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Multivariate Calibration and Model Integrity for Wood Chemistry Using Fourier Transform Infrared Spectroscopy

s. The Dm of small cubic specimens with extruded surfaces removed submerged in distilled water and seawater were estimated to be 3.1 and 2.3 × 10−8 cm2

Characterization of Epoxy Composites Reinforced with Wax Encapsulated Microcrystalline Cellulose

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Characterization of cellulose fibril aggregates isolated by the combination of ultrasonication and homogenizer

s, respectively. Use of these diffusion coefficients overestimates the rate of moisture movement in larger extrusion profiles indicating the role of transport phenomenon other than diffusion.ZusammenfassungZur Bestimmung der Feuchtebewegung in einem extrudierten Holz-Polypropylen-Verbundwerkstoff wurde dieser hoher Feuchtigkeit ausgesetzt und in sowohl Süß- als auch Meerwasser gelagert. Die Sättigungsfeuchte betrug ca. 20% bei Lagerung in destilliertem Wasser und 19% bei Lagerung in Meerwasser. Der Feuchtediffusionskoeffizient (Dm) dünner Prüfkörper, die hoher Feuchtigkeit ausgesetzt waren, betrug 3,4 × 10−8 cm2