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首页> 外文期刊>Journal of industrial and engineering chemistry >Studying the thermodynamic parameters of disperse dyeing of modified polyethylene terephthalate sheets using hyperbranched polymeric additive as a nanomaterial
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Studying the thermodynamic parameters of disperse dyeing of modified polyethylene terephthalate sheets using hyperbranched polymeric additive as a nanomaterial

机译:以超支化聚合物添加剂为纳米材料研究改性聚对苯二甲酸乙二酯片的分散染色热力学参数

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摘要

Thermodynamic parameters of disperse dyeing of modified PET sheets by various loads of a polyesteramide hyperbranched polymer are investigated in terms of standard affinity (-△μ°), enthalpy change (△H°) and entropy change (AS°). The results show that the standard affinity of dye to the modified PET is higher than that to the virgin PET. The bath containing virgin PET displays the highest negative values of the △H" and △S°, while the bath containing the modified PET with 2% hyperbranched polymer shows the lowest negative values of them. Surface morphology and thermal properties of the samples are analyzed by AFM and DSC.
机译:根据标准亲和力(-△μ°),焓变(△H°)和熵变(AS°)研究了各种负荷的聚酯酰胺超支化聚合物对改性PET片材进行分散染色的热力学参数。结果表明,染料对改性PET的标准亲和力高于对纯PET的标准亲和力。含纯PET的镀液显示出最高的△H“和△S°负值,而含改性PET和2%超支化聚合物的镀液显示出最低的负值。分析样品的表面形态和热性能由AFM和DSC提供。

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