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首页> 外文期刊>Polymers for advanced technologies >Preparation and characterization of poly(ethylene terephthalate)/clay nanocomposites by melt blending using thermally stable surfactants
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Preparation and characterization of poly(ethylene terephthalate)/clay nanocomposites by melt blending using thermally stable surfactants

机译：热稳定表面活性剂熔融共混制备聚对苯二甲酸乙二醇酯/粘土纳米复合材料及其表征

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摘要

Poly(ethylene terephthalate) (PET)/clay nanocomposites were prepared by melt blending and their morphologies and properties were investigated through X-ray diffraction, bright field transmission electron microscopy, thermogravimetric analysis and cone calorimetry. Three clays were comparatively studied-montmorillonite, hectorite and magadiite-all organically modified with thermally stable surfactants developed in this laboratory. Two such organic modifications were investigated, alkyl-quinolinium surfactants and vinylbenzyl-ammonium containing copolymers; both organic modifications combine high enough degradation temperature to allow for melt processing with PET, and also favorable thermodynamics for nanocomposite formation with PET. All nanocomposites showed about the same value for the peak heat release rate (PHRR). The amount of char increases after nanocomposite formation and this could account for the PHRRs.
机译：通过熔融共混制备聚对苯二甲酸乙二酯（PET）/粘土纳米复合材料，并通过X射线衍射，明场透射电子显微镜，热重分析和锥形量热法研究其形态和性能。对三种粘土进行了比较研究-蒙脱石，锂蒙脱石和菱镁矿-所有都是用在该实验室开发的热稳定表面活性剂进行有机改性的。研究了两种这样的有机改性剂，即烷基喹啉鎓表面活性剂和含乙烯基苄基铵的共聚物。两种有机改性剂都具有足够高的降解温度以允许与PET进行熔融加工，并且还具有良好的热力学，可以与PET形成纳米复合材料。所有纳米复合材料的峰值放热率（PHRR）都显示大约相同的值。纳米复合材料形成后，炭量增加，这可能是PHRR的原因。

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