纳米纤维素/ZnS复合材料的制备与性能研究

Preparation and Characterization of Nano-cellulose/ZnS Nanocomposites

本文以纳米纤维素为基材,以无水氯化锌及硫化钠为前驱体,用一步水热法制备一种可降解且防伪性能优越的CNC/ZnS纳米复合材料。用X射线衍射(XRD)、场发射扫描电镜(SEM)、傅里叶红外光谱仪(FT-IR)以及荧光分光光度计、紫外分光光度计对复合材料进行表征。结果表明,复合物中ZnS纳米粒子在CNC上分布均匀,此法制备的纳米复合材料在自然光下呈淡黄色,紫外光下呈明亮绿色。所制备的薄膜不遮挡底部图像,可用作荧光防伪包装材料。

Using nano cellulose as the base material, anhydrous zinc chloride and sodium sulfide as the precursor, the biodegradable CNC / ZnS nanoeomposites were synthesized through one step hydrothermal method, which showed excellent security features. The composites were characterized by X - ray diffraction （XRD） , field emission scanning electron microscopy （ FE - SEM）, Fourier transform infrared spectroscopy （ FT - IR）, fluorescence spee- trophotometer,and UV spectrophotometer. The results showed that ZnS was homogeneous distributed, the nanoeom- posites prepared by this method were colorless under natural light, but bright green under ultraviolet light. The pre- pared film didn＇t block the bottom image and could be used as a fluorescent anti -counterfeiting packaging materi- al.