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Contribution of woo...
Contribution of wood fiber hygroexpansion to moisture induced thickness swelling of composite plates
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- Almgren, Karin M. (författare)
- STFI-Packforsk AB, Box 5604, SE-114 86 Stockholm
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- Gamstedt, E. Kristofer (författare)
- KTH,Träkemi och massateknologi,Department of Fiber and Polymer Technology, Royal Institute of Technology - KTH
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- Varna, Janis (författare)
- Luleå tekniska universitet,Materialvetenskap
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(creator_code:org_t)
- Wiley, 2010
- 2010
- Engelska.
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Ingår i: Polymer Composites. - : Wiley. - 0272-8397 .- 1548-0569. ; 31:5, s. 762-771
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- One of the main drawbacks of wood fiber-based composite materials is their propensity to swell due to moisture uptake. Because the wood fibers are usually the main contributor to hygroexpansion, it is of interest to quantify the hygroexpansion coefficient of wood fibers, to compare and rank different types of fibers. This investigation outlines an inverse method to estimate the transverse hygroexpansion coefficient of wood fibers based on measurements of moisture induced thickness swelling of composite plates. The model is based on composite micromechanics and laminate theory. Thickness swelling has been measured on polylactide matrix composites with either bleached reference fibers or crosslinked fibers. The crosslinking modification reduced the transverse hygroexpansion of the composites and the transverse coefficient of hygroexpansion of the fibers was reduced from 0.28 strain per relative humidity for reference fibers to 0.12 for cross-linked fibers
Ämnesord
- 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)
Nyckelord
- Crosslinked
- Hygroexpansion
- Inverse methods
- Laminate theory
- Matrix composite
- Moisture uptake
- Poly lactide
- Reference fibers
- Relative humidities
- Thickness swelling
- Wood fiber
- Cellulose and paper engineering
- Cellulosa- och pappersteknik
- Polymeric Composite Materials
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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