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首页> 外文期刊>Journal of Applied Polymer Science >Effect of organically modified layered double hydroxides on the properties of poly(lactic acid)/poly[(butylene succinate)-co-adipate] immiscible blends
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Effect of organically modified layered double hydroxides on the properties of poly(lactic acid)/poly[(butylene succinate)-co-adipate] immiscible blends

机译：有机改性层状双氢氧化物对聚（乳酸）/聚[（丁二酸丁酸酯）-CO-己二酸酯的性质的影响

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摘要

In this study, poly(lactic acid) (PLA)/poly[(butylene succinate)-co-adipate] (PBSA) blend and its nanocomposites with layered double hydroxides (LDH) containing surface stearic acid functional groups (SaLDH) were prepared using the extrusion method, where the weight ratio of PLA/PBSA was fixed at 80/20, while that of the SaLDH varied from 0.1, 0.5, and 1.0 wt%. The characterization of SaLDH using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and Thermogravimetric analysis (TGA) confirmed the presence of stearic acid moieties on the LDH surface. Comprehensive characterization of nanocomposites showed concurrent improvement of the thermal, mechanical, and oxygen gas barrier properties of nanocomposite containing 0.5 wt% of SaLDH. These properties are shown to result from improved interfacial interaction between the polymer matrices and the homogeneous distribution of nanoclay particles obtained at 0.5 wt% SaLDH concentration. The nanocomposite material thus shows high prospects in the industrial development of environmentally sustainable food and cosmetic packaging applications. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48654.
机译：在本研究中，使用含有含有层状硬脂酸官能团（SALDH）的聚（乳酸）（PLA）/聚[（丁烯琥珀酸盐）-CO-己二酯]（PBSA）共混物及其具有层状双氢氧化物（LDH）的纳米复合材料挤出方法，其中PLA / PBSA的重量比固定在80/20，而SALDH的重量比为0.1,0.5和1.0wt％。 SALDH使用傅里叶变换红外光谱（FTIR），X射线衍射（XRD）和热重分析（TGA）的表征证实了LDH表面上硬脂酸部分的存在。纳米复合材料的综合表征显示纳米复合材料的热，机械和氧气阻隔性能同时改善含有0.5wt％的SALDH的纳米复合材料。显示这些性质是由于在0.5wt％SALDH浓度下获得的纳米粘土颗粒的均匀分布改善了改善的界面相互作用。因此，纳米复合材料在环境可持续食品和化妆品包装应用的工业开发中表现出高前景。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,137,48654。

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