氧化锌-淀粉纳米复合材料的制备及其在涂层中的应用。

Preparation of Zinc Oxide-Starch Nanocomposite and Its Application on Coating.

作者信息

Ma Jinxia, Zhu Wenhua, Tian Yajun, Wang Zhiguo

机构信息

Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, 159 Longpan Road, Nanjing, 210037, China.

出版信息

Nanoscale Res Lett. 2016 Dec;11(1):200. doi: 10.1186/s11671-016-1404-y. Epub 2016 Apr 14.

A new production method of zinc oxide (ZnO)-starch nanocomposite was invented in this study. Starch was dissolved in zinc chloride (ZnCl2) solution (65 wt%) at 80 °C. Then, ZnO-starch nanocomposite was achieved when the pH of the solution was adjusted to 8.4 by NaOH solution (15 wt%). ZnO nanoparticles were also obtained when the generated ZnO-starch nanocomposite was calcined at 575 °C. The properties of ZnO-starch nanocomposite and ZnO nanoparticle were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results indicated that the sizes of ZnO-starch composite and ZnO particle were 40-60 nm. UV blocking effect was observed from both ZnO-starch nanocomposite and ZnO nanoparticle. The ZnO-starch nanocomposite was used to directly coat the surface of plain paper with a laboratory paper coater. The surface strength and smoothness of paper were improved by the coating of ZnO-starch nanocomposite. The antibacterial property was also identified from the coated paper.

本研究发明了一种氧化锌（ZnO）-淀粉纳米复合材料的新生产方法。淀粉在80℃下溶解于氯化锌（ZnCl₂）溶液（65 wt%）中。然后，用氢氧化钠溶液（15 wt%）将溶液pH值调至8.4时，得到ZnO-淀粉纳米复合材料。当将生成的ZnO-淀粉纳米复合材料在575℃下煅烧时，也可获得ZnO纳米颗粒。通过X射线衍射（XRD）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）对ZnO-淀粉纳米复合材料和ZnO纳米颗粒的性能进行了表征。结果表明，ZnO-淀粉复合材料和ZnO颗粒的尺寸为40-60 nm。在ZnO-淀粉纳米复合材料和ZnO纳米颗粒中均观察到了紫外线阻隔效果。使用实验室纸张涂布机将ZnO-淀粉纳米复合材料直接涂布在普通纸张表面。ZnO-淀粉纳米复合材料的涂布提高了纸张的表面强度和平滑度。在涂布后的纸张中也鉴定出了抗菌性能。