Mechano-sorptive creep in wood fibres

被引:0
|
作者
Anne-Mari Olsson
Lennart Salmén
Michaela Eder
Ingo Burgert
机构
[1] STFI-Packfosk,Department of Biomaterials
[2] Max-Planck-Institute of Colloids and Interfaces,undefined
来源
关键词
Creep Rate; Dynamic Mechanical Analyser; Creep Strain; Wood Fibre; Creep Strain Rate;
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摘要
In order to investigate the way in which fibre properties affect the mechano-sorptive creep phenomenon in paper, single wood fibres were exposed to tensile stresses at a constant humidity of 80% relative humidity (RH) and in a cyclic humidity environment varying between 80 and 30% RH. Contrary to earlier claims, it was demonstrated that single wood fibres exposed to a cyclic RH show a considerably higher creep than that corresponding to the highest RH experienced in the cycle, i.e., a mechano-sorptive behaviour. The creep strain rate at cyclic humidity was shown to be a function of the creep rate at constant climate, and to be an apparent linear function of the applied stress.
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页码:59 / 67
页数:8
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