摘要
制备了粒径分布为30～60 nm的纳米TiO2-壳聚糖分散处理液,用该处理液对柞蚕丝进行改性,研究改性后柞蚕丝的结构与力学性能.结果表明：所制备的处理液中纳米TiO2微粒分散良好;处理液中的柠檬酸和马来酸酐作为交联剂与柞蚕丝和壳聚糖之间发生交联反应,柞蚕丝经处理后结晶度提高并有β化趋势;处理后柞蚕丝纤维的纵向表面具有轻微的纵向条纹;其力学性能包括断裂强度、断裂伸长率、弹性模量和断裂功均有一定程度的提高.
The dispersed treatment solution containing nano-TiO2 with size distribution ranging from 30 to 60 nm and chitosan was prepared and applied to the modification treatment of the tussah silk fiber. The structure and mechanical properties of the treated fibers were studied. The results indicated that nano-particles were dispersed homogeneously and the citric acid and maleic anhydride as cross linkers in treatment solution reacted with tussah silk and chitosan. The crystallinity of treated tussah silk fiber was increased and more β- sheet structure was formed. It was also found that the longitudinal morphology of the tussah silk fiber treated with nano-TiO2 and chitosan solution had slight longitudinal stripe, and the mechanical properties including breaking strength , breaking elongation, initial modulus and breaking work of the treated silk filaments were increased to some extent.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2007年第8期15-18,共4页
Journal of Textile Research
基金
辽东学院科研基金项目(2006-Z10)
