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Durability and mech...
Durability and mechanical properties of silane cross-linkedwood thermoplastic composites
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- Bengtsson, Magnus (author)
- Norwegian University of Science and Technology (NTNU), Trondheim
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- Stark, Nicole (author)
- Forest Products Laboratory
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- Oksman, Kristiina (author)
- Luleå tekniska universitet,Materialvetenskap
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(creator_code:org_t)
- Elsevier BV, 2007
- 2007
- English.
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In: Composites Science And Technology. - : Elsevier BV. - 0266-3538 .- 1879-1050. ; 67:13, s. 2728-2738
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- In this study, silane cross-linked wood-polyethylene composite profiles were manufactured by reactive extrusion. These composites were evaluated regarding their durability and mechanical properties in comparison with two non-cross-linked wood-polyethylene composites. An addition of only 2% w/w of silane solution during manufacturing was enough to achieve almost 60% degree of cross-linking after curing. The cross-linked composites showed flexural toughness superior to the non-cross-linked composites. The cross-linked composites also absorbed less moisture during a boiling test in water and this was an indirect evidence of improved interfacial adhesion. After accelerated weathering for 1000-3000 h the general trend was a decrease in flexural modulus and strength of both the non-cross-linked and cross-linked composites. The decrease in modulus seemed to be lower for the cross-linked composites while the decrease in strength seemed to be higher compared to the non-cross-linked composites. Weathering also resulted in a considerable colour fading of the composites. Water absorption-freeze-thaw cycling decreased the flexural modulus of non-cross-linked composites considerably while there was no statistical decrease in modulus for the cross-linked composites. There was only an insignificant decrease in strength for the composites after the water absorption-freeze-thaw cycling.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Biomaterial (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bio Materials (hsv//eng)
Keyword
- Trä och bionanokompositer
- Wood and Bionanocomposites
Publication and Content Type
- ref (subject category)
- art (subject category)
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