It has been proved that the more than 80% leukemia were caused by indoor formaldehyde pollution. To improve the self-bonding reactivity and prepare self-bonded board with formaldehyde-free, Eucalyptus wood fibers were pretreated, processed and analyzed by 13C-NMR and FT-IR. The results showed that the IB of SBBs reached the maximum of 1.53MPa with the pretreatment time of 3h. FT-IR and 13C-NMR spectra showed that the group and reactivity of wood fibers had different changes by acidic oxidation pretreatment. It suggested that cellulose, hemicellulose and lignin produced the bonding reaction, helped the pretreated fiber to be self-bonded, improved the water resistance and the high IB.
Biochemical groups; Acidic oxidation; Public health; NMR; FT-IR; Self-bonded board
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