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This research is to study the improvement of chemical, physical and mechanical properties of zalacca fibers after NaHCO_3 treatment. It was carried out by immersion in 10% NaHCO_3 solution for 24, 120... and 240 h. Fiber content analysis and FTIR showed an increase of cellulose and a decrease of hemicellulose and lignin content. XRD indicated an increase of crystallinity. SEM revealed cleaning and roughening effects on the fiber surface. TGA-DTA revealed a slight decrease in thermal stability. The tensile testing showed that the highest tensile strength and elastic modulus were obtained by the treatment for 120 h.続きを見る
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Pages_29-38