TITLE:
Characterization of Structure and Property of the Monocarboxyl Bamboo Pulp Fibers
AUTHORS:
Zhaofang Du, Liling Zhang, Yunhui Xu
KEYWORDS:
Bamboo Pulp Fiber, Selective Oxidation, HNO3/H3PO4-NaNO2 System, Structure, Property
JOURNAL NAME:
Materials Sciences and Applications,
Vol.6 No.4,
March
31,
2015
ABSTRACT: The oxidized bamboo pulp fiber yarns were prepared by the HNO3/H3PO4-NaNO2 oxidation system.
The effects of the oxidation concentration and reaction time on the weight loss, the carboxyl content
and the breaking strength of the bamboo pulp fiber yarns were studied and the aggregation
structure was investigated by Fourier transform infrared, X-ray and scanning electron microscopy.
The results revealed an increase in carboxyl content and a decrease in breaking strength of oxidized
bamboo pulp fiber yarns with increasing concentration of oxidant and reaction time. The
breaking strength of oxidized bamboo fiber yarns was damaged seriously once the reaction time
was more than 120 min or the concentration of oxidant was greater than 1.0%. The crystallinity of
bamboo pulp fibers increased slightly under low oxidation degree but decreased with higher oxidation
degree.