科研之友
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摘要
The effect of drying method on the fiber morphology and supramolecular structures was studied by SEM,FTIR spectroscopy and X-ray diffraction.After forced drying, the fibers became more connected and the fiber swelling capacity decreased compared with the fibers of air dry condition.It was shown by FTIR that the style of crystal structure did not change, but the proportion of different models of the hydrogen bonds significantly changed with different drying condition.It is clear that the content of inter-molecular hydrogen bonds O (6)H…O (3′) increased by 19.41% with forced drying condition compared with the air drying condition, while the content of intramolecular hydrogen bonds O(2) H… O(6) and O(3) H…O(5)decreased by 17.52%.There was an obvious increase in the average width of crystallite size, the crystallinity and the cross-sectional area with the forced drying condition which was found by using deconvoluting XRD spectra of eucalyptus fibers.
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