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NATURAL FIBER-REINFORCED PLASTICS COMPOSITES: LONG-TERM PHYSICO-STRUCTURAL PERFORMANCE IN FAÇADES



Author(s): D. Friedrich
Paper category: Proceedings
Book title: 3rd International Conference on Bio-Based Building Materials ICBBM 2019
Editor(s): Mohammed Sonebi and Sofiane Amziane
ISBN:
e-ISBN: 978-2-35158-229-9
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 430 - 437
Total Pages: 8
Language: English


Abstract: Mixing fossil-based plastics with wood fibers is an effective measurement for a more responsible use of scarce crude oil resources. However, products made from such wood-polymer composites (WPC) not necessarily show similar properties as if made from neat plastics specifically if intended for structural outdoor use such as façades. This papers reports from a multi sampling of three WPC compounds showing different surface finishings. After one year natural weathering in Central Europe, physico-mechanical properties were determined by density and water uptake as well as impact and bending strength in dry and saturated state. It was found that brushing a WPC`s surface potentially accelerates ageing by unhindered humidity- and UV-penetration but this effect is compensable by increasing the compound`s density. Alternatively, negative consequences from a high fiber content usually resulting in low density can be offset by a weather protecting co-extruded surface layer. Such a compound revealed lowest decline in impact and bending strength and consistent surface appearance over the weathering period. This particular finishing obviously best supports durability and eco-friendliness of fiber-reinforced plastics composites.


Online publication: 2019
Publication type: full_text
Public price (Euros): 0.00


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