论文部分内容阅读
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。
In this paper, nanocellulose as substrate, anhydrous zinc chloride and sodium sulfide as precursors, a one-step hydrothermal method to prepare a biodegradable and CNC / ZnS nanocomposites superior security performance. The composites were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and fluorescence spectrophotometer. The results show that the ZnS nanoparticles in the composite are uniformly distributed on the CNC. The nanocomposites prepared in this method are light yellow under natural light and bright green under ultraviolet light. The prepared film does not block the bottom of the image, can be used as fluorescent anti-counterfeiting packaging materials.