Atomic force microscopy for the measurement of flexibility of single softwood pulp fibres |
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Authors: | N Navaranjan R J Blaikie A N Parbhu J D Richardson A R Dickson |
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Affiliation: | (1) Papro, Scion, Private Bag 3020, Rotorua, New Zealand;(2) The MacDiarmid Institute, University of Canterbury, Private Bag 4800, Christchurch, New Zealand;(3) Industrial Research Limited, Lower Hutt, New Zealand |
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Abstract: | A new method based on the atomic force microscope has been developed to measure the lateral flexibility of single wood pulp
fibres. In this method, individual wet pulp fibres from earlywood and latewood of Pinus radiata were placed on a newly designed two-point support, and the load and the deflection of fibres were measured under three-point
bending test using a modified cantilever probe. The lateral flexibility values of the fibres were then calculated using propped
cantilever beam theory. The results obtained indicate that earlywood fibres are substantially more flexible, and have a greater
range of flexibility values than latewood fibres. |
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