Vishnuvarthanan M, Rajeswari N
Department of Printing Technology, College of Engineering, Guindy, Anna University, Chennai, TamilNadu 600025 India.
J Food Sci Technol. 2019 May;56(5):2545-2552. doi: 10.1007/s13197-019-03735-4. Epub 2019 Apr 13.
In this work, the nano composites of carrageenan/AgNPs/Laponite were prepared and coated on the oxygen plasma surface modified polypropylene film to enhance the barrier and adhesion properties. The mechanical, barrier, adhesion and antimicrobial properties were also studied to use for food packaging applications. The polypropylene film was surface modified with oxygen plasma treatment for 60 s. The AgNPs are prepared by green synthesis method from the plant. Then the carrageenan based nanocomposites were coated by roller coating method with the thickness of 24 μm. By using scanning electron microscopy, the morphology of the coating was investigated. The Laponite and AgNPs dispersion was analyzed by X-ray diffraction analysis. The tensile and adhesion strength of the coated film was increased and the OTR and WVTR were decreased after the incorporation of Laponite and AgNPs. It exhibited the strong antimicrobial activity against the and
在这项工作中，制备了角叉菜胶/AgNPs/锂皂石纳米复合材料，并将其涂覆在经氧等离子体表面改性的聚丙烯薄膜上，以提高阻隔和粘附性能。还研究了其机械、阻隔、粘附和抗菌性能，以用于食品包装应用。聚丙烯薄膜经氧等离子体处理60秒进行表面改性。AgNPs通过绿色合成法从植物中制备。然后通过辊涂法涂覆基于角叉菜胶的纳米复合材料，厚度为24μm。通过扫描电子显微镜研究了涂层的形态。通过X射线衍射分析对角叉菜胶和AgNPs的分散情况进行了分析。加入锂皂石和AgNPs后，涂膜的拉伸强度和粘附强度增加，氧气透过率（OTR）和水蒸气透过率（WVTR）降低。它对……表现出很强的抗菌活性。
