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首页> 外文会议>Regional Conference of the Polymer Processing Society >Processing and antimicrobial efficacy of polypropylene/montmorillonite/silver nanocomposites as food packaging films
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Processing and antimicrobial efficacy of polypropylene/montmorillonite/silver nanocomposites as food packaging films

机译：聚丙烯/蒙脱石/银纳米复合材料作为食品包装薄膜的加工和抗微生物疗效

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The aim this study was to use nanocomposites of polypropylene (PP), montmorillonite (MMT) and silver nanoparticles (AgNPs), prepared by melt intercalation in a twin-screw extruder, as a food packaging bactericide material. The use of nanoclay and nanosilver as additives for polymer matrices requires, in some cases (with non-polar matrices) the use of a compatibilizer agent which will act as a bridge or permanent buffer for nanoclay-nanosilver-matrix interaction. As compatibilizer agent it has been used a propylene graft maleic anhydride copolymer (PP-g-MA). The nanocomposites were evaluated by differential scanning calorimetry (DSC), X-Rays diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and determination of antibacterial activity. The results indicate the formation of microstructures predominantly exfoliated. Further, the antibacterial properties of the films were investigated against Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive) bacteria.
机译：本研究的目的是在双螺杆挤出机中使用熔融嵌入制备的聚丙烯（PP），蒙脱石（MMT）和银纳米颗粒（AGNP）的纳米复合物作为食品包装杀菌材料。在某些情况下，使用纳米粘土和纳米玻璃作为聚合物基质的添加剂（具有非极性基质），使用具有用于纳米粘土 - 纳米液 - 基质相互作用的桥或永久性缓冲器的增容剂。作为相容剂剂，已被使用丙烯接枝马来酸酐共聚物（PP-G-MA）。通过差示扫描量热法（DSC），X射线衍射（XRD），扫描电子显微镜（SEM），能量分散光谱（EDS）和抗菌活性的测定来评估纳米复合材料。结果表明形成主要剥离的微观结构的形成。此外，对大肠杆菌（革兰氏阴性）和金黄色葡萄球菌（革兰氏阴性）细菌进行研究，研究了膜的抗菌性质。

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