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Moisture uptake and...
Moisture uptake and hygroexpansion of wood fiber composite materials with polylactide and polypropylene matrix materials
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- Almgren, Karin M. (author)
- RISE,STFI-Packforsk
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- Gamstedt, E. Kristofer (author)
- RISE,KTH,Träkemi och massateknologi,STFI-Packforsk
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- Berthold, Fredrik (author)
- RISE,STFI-Packforsk
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- Lindström, Mikael (author)
- RISE,STFI-Packforsk
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(creator_code:org_t)
- 2008-12-17
- 2009
- English.
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In: Polymer Composites. - : Wiley. - 0272-8397 .- 1548-0569. ; 30:12, s. 1809-1816
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Effects of butantetracarboxylic acid (BTCA) modification, choice of matrix, and fiber volume fraction on hygroexpansion of wood fiber composites have been investigated. Untreated reference wood fibers and BTCA-modified fibers were used as reinforcement in composites with matrices composed of polylactic acid (PLA), polypropylene (PP), or a mixture thereof. The crosslinking BTCA modification reduced the out-of-plane hygroexpansion of PLA and PLA/PP composites, under water-immersed and humid conditions, whereas the swelling increased when PP was used as matrix material. This is explained by difficulties for the BTCA-modified fibers to adhere to the PP matrix. Fiber volume fraction was the most important parameter as regards out-of-plane hygroexpansion, with a high-fiber fraction leading to large hygroexpansion. Fiber-matrix wettability during processing and consolidation also showed to have a large impact on the dimensional stability and moisture uptake. POLYM. COMPOS., 30:1809-1816, 2009.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Keyword
- DIMENSIONAL STABILITY; MECHANICAL-PROPERTIES; ABSORPTION; POLYMER; DEGRADATION; WATER; ACID
- Cellulose and paper engineering
- Cellulosa- och pappersteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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