经纳米壳聚糖处理的桑蚕丝纤维聚集态结构

Aggregation structure of B.mori silk treated with chitosan nanoparticle dispersed solution

通过采用离子凝胶法制备的纳米壳聚糖处理桑蚕丝纤维,研究桑蚕丝纤维经不同质量分数纳米壳聚糖分散液处理后的聚集态结构变化。研究结果表明:桑蚕丝纤维经纳米壳聚糖分散液处理后,纤维内部聚集态结构呈现出β化趋势,结晶度和热稳定性提高;随着纳米壳聚糖质量分数的进一步提高,桑蚕丝纤维β化趋势增强,热稳定性更好。

Chitosan nanoparticles were prepared by the ionotropic change of B. mori silk treated with chitosan nanoparticle dispersed gelation method. The aggregation structure solution with different mass concentrations was studied. The results show that the conformation of B. mori silk treated by chitosan nanoparticles has the trend of β-sheet, and the crystallinity and thermodynamic stability increase. Moreover, as mass concentration increases, the trend of β-sheet strengthens and the thermodynamic stability further imnroves.