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首页> 外文期刊>RSC Advances >The relationship of structure, thermal and water vapor permeability barrier properties of poly(butylene succinate)/organomodified beidellite clay bionanocomposites prepared by in situ polycondensation
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The relationship of structure, thermal and water vapor permeability barrier properties of poly(butylene succinate)/organomodified beidellite clay bionanocomposites prepared by in situ polycondensation

机译：用原位缩聚制备的聚（丁烯琥珀酸酯）/有机丁酯粘土粘土复合物的结构，热和水蒸气渗透性阻隔性能的关系

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摘要

The exploitation of beidellite clay (BDT), used as a nanofiller in the preparation of poly(butylene succinate) (PBS)/organoclay biodegradable nanocomposites, was investigated. A series of bionanocomposites with various loadings of the organoclay (3CTA-BDT) were prepared by in situ polycondensation reaction between succinic anhydride (SuAh) and 1,4-butanediol (1,4-BD) at atmospheric pressure in refluxing decalin with azeotropic removal of water, and the reaction was catalyzed by non-toxic bismuth chloride (BiCl _(3) ). X-ray diffraction (XRD) and scanning electron microscopy (SEM) results showed that 3CTA-BDT was likely exfoliated and well dispersed in PBS matrix. Thermal properties (TGA, DSC and thermal conductivity), contact angle measurements and water vapor sorption behavior of the corresponding nanocomposites were also discussed. Compared to pure PBS, a significant reduction of the diffusion coefficient and the water vapor permeability (WVP) by 44 and 37%, respectively, was observed by adding only 5 wt% of 3CTA-BDT. These results could make these bionanocomposites suitable materials for food packaging application.
机译：研究了在制备聚（丁二酸酯）（PBS）/有机粘土可生物降解的纳米复合材料的制备中用作纳米噻虫粘土（BDT）的开发。通过在用共沸物中回流癸蛋白的琥珀酸酐（SUAH）和1,4-Butanediol（1,4-Bd）之间的琥珀酸酐（SUAH）和1,4-Butanediol（1,4-Bd）之间的致原理缩聚反应，制备一系列具有各种环状滤池水，反应通过无毒的氯化物催化（BiCl _（3））催化。 X射线衍射（XRD）和扫描电子显微镜（SEM）结果表明，3CTA-BDT可能剥离并良好分散在PBS基质中。还讨论了热性能（TGA，DSC和导热率），相应纳米复合材料的接触角测量和水蒸气吸附行为。与纯PBS相比，通过仅加入5wt％的3cta-BDT，分别观察到扩散系数和水蒸气渗透率（WVP）的显着降低。这些结果可以使这些BionanoC复合物适用于食品包装应用的材料。

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