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Mechanosorptive cre...
Mechanosorptive creep in nanocellulose materials
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- Lindström, Stefan (author)
- Linköpings universitet,Mekanik,Tekniska högskolan
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- Karabulut, Erdem (author)
- KTH,Fiber- och polymerteknologi,Department of Fiber Technology, KTH
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- Kulachenko, Artem (author)
- KTH,Hållfasthetslära (Avd.),Paper Physics,Solid Mechanics, KTH
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- Sehaqui, Houssine (author)
- KTH,Fiber- och polymerteknologi,Department of Fiber Technology, KTH
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- Wågberg, Lars (author)
- KTH,Fiber- och polymerteknologi,Department of Fiber Technology, KTH
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(creator_code:org_t)
- 2012-02-16
- 2012
- English.
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In: Cellulose. - : Springer. - 0969-0239 .- 1572-882X. ; 19:3, s. 809-819
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https://liu.diva-por... (primary) (Raw object)
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Abstract
Subject headings
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- The creep behavior of nanocellulose films and aerogels are studied in a dynamic moisture environment, which is crucial to their performance in packaging applications. For these materials, the creep rate under cyclic humidity conditions exceeds any constant humidity creep rate within the cycling range, a phenomenon known as mechanosorptive creep. By varying the sample thickness and relative humidity ramp rate, it is shown that mechanosorptive creep is not significantly affected by the through-thickness moisture gradient. It is also shown that cellulose nanofibril aerogels with high porosity display the same accelerated creep as films. Microstructures larger than the fibril diameter thus appear to be of secondary importance to mechanosorptive creep in nanocellulose materials, suggesting that the governing mechanism is found between molecular scales and the length-scales of the fibril diameter.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Keyword
- Nanofibrillated cellulose
- Mechanosorptive creep
- Accelerated creep
- Sorption
Publication and Content Type
- ref (subject category)
- art (subject category)
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