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首页> 外文期刊>Journal of Applied Polymer Science >Interaction and quantification of thymol in active PLA-based materials containing natural fibers
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Interaction and quantification of thymol in active PLA-based materials containing natural fibers

机译：百里香酚在含有天然纤维的活性PLA基材料中的相互作用和定量

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The quantification of thymol, a commercial essential oil extract that is an antimicrobial (AM) agent, in poly(lactic acid) (PLA) and PLA/kenaf composites was investigated to explore the potential of these systems as AM food-packaging materials. Neat PLA and PLA/kenaf composites containing thymol (5-10 wt %) were prepared via melt blending and compression molding. The quantification of the thymol content in PLA and PLA/kenaf composites after processing as well as the interactions between the PLA matrix, kenaf fibers and the AM agent were investigated. The PLA/kenaf composites in the range of 10 to 40 wt % fiber content retained less thymol upon processing than PLA alone and the composites containing the highest fiber loadings demonstrated the lowest thymol retention. The observed losses were attributed to the higher mechanical shear that exists during the mixing process as well as the creation of voids in the composites that facilitate the release of thymol from the system. (C) 2015 Wiley Periodicals, Inc.
机译：对百里香酚（一种作为抗菌剂（AM）的商品精油提取物）在聚乳酸（PLA）和PLA /洋麻复合材料中的定量进行了研究，以探索这些系统作为AM食品包装材料的潜力。通过熔融共混和压缩成型制备含有百里酚（5-10wt％）的纯净的PLA和PLA /洋麻复合材料。研究了加工后的PLA和PLA /洋麻复合材料中百里酚的含量以及PLA基质，洋麻纤维和AM试剂之间的相互作用。纤维含量在10至40 wt％范围内的PLA /洋麻复合材料在加工后保留的百里酚比单独的PLA少，含有最高纤维负载的复合材料的百里酚保留率最低。观察到的损失归因于在混合过程中存在的较高的机械剪切力，以及在复合物中形成的空隙，这些空隙促进了百里酚从体系中的释放。 （C）2015年Wiley Periodicals，Inc.

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