聚苯乙烯/纳米银复合物涂布再生箱纸板机械及抗菌性能的研究

Mechanical and antibacterial properties of recycled carton paper coated by PS/Ag nanocomposites for packing

聚合纳米材料与纸张结合能够制备出一种新型的包装材料。本文中,利用稻草粉(RS)这一新型、无毒副作用的环境友好型生物质材料对纳米银颗粒形成的促进作用,制备出纳米银颗粒,并将其作为抗菌剂。通过透射电子显微镜(TEM)、X射线衍射图(XRD)和紫外分光光度仪对制得的纳米银颗粒进行了检测。然后将纳米银颗粒均匀分散到商品聚苯乙烯溶液中。不同纳米银颗粒含量(2%、4%、6%和8%)的聚苯乙烯复合物对再生箱纸板进行涂布处理。通过扫描电子显微镜(SEM)对制得的再生箱纸板表面特性进行表征。同时对再生箱纸板的机械性能、水蒸气透过率和抗菌性能进行研究。

Polymer nanocomposites and paper constitute a new class of packaging materials. In this study silver nanoparticles were prepared by novel method as antibacterial additive, where, synthetic takes place with aid of a novel, non-toxic, and eco-friendly biological materials namely rice straw （RS） powder. The prepared Ag nanoparticle was examined by transmission electron microscope （TEM）, X-ray diffraction pattern （XRD） and UV-spectroscopy. The silver nanoparticles were then embedded into commercial polystyrene solution. The recycled carton paper was coated by the polystyrene nanocomposites containing different concentration of silver nanoparticles, namely 2, 4, 6 and 8% based on polystyrene. The prepared recycled carton sheets were characterized by scanning electron microscope （SEM）. The mechanical properties, water vapor permeability and antibacterial effect of recycled carton sheets were also investigated.