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首页> 外文期刊>Journal of Applied Polymer Science >The crystallization rate of poly(ethylene terephthalate) accelerated by co[poly(butylene terephthalate-p-oxybenzoate)] copolyesters
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The crystallization rate of poly(ethylene terephthalate) accelerated by co[poly(butylene terephthalate-p-oxybenzoate)] copolyesters

机译：共[聚（对苯二甲酸丁二醇酯-对-氧苯甲酸酯）]共聚酯促进了聚对苯二甲酸乙二醇酯的结晶速率

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摘要

Poly(ethylene terephthalate) (PET) was blended with three different kinds of co[poly(butylene terephthalate-p-oxybenzoate)] copolyesters, designated B28, B46, and B64, with the level of copolyester varying from 1 to 15 wt %. All samples were prepared by solution blending in a 60/40 by weight phenol/tetrachloroethane solvent at 50 degrees C. The crystallization behavior of samples was then studied via differential scanning calorimetry. The results indicate that these three copolyesters accelerate the crystallization rate of PET in a manner similar to that of a nucleating agent. The acceleration of PET crystallization rate was most pronounced in the PET/B28 blends with a maximum level at 10 wt % of B28. The melting temperatures for the blends are comparable with that of pure PET. The observed changes in crystallization behavior are explained by the effect of the physical state of the copolyester during PET crystallization as well as the amount of copolyester in the blends. (C) 2000 John Wiley & Sons, Inc. [References: 18]
机译：将聚对苯二甲酸乙二酯（PET）与三种不同种类的共聚[聚对苯二甲酸丁二醇酯-对-氧苯甲酸酯）共聚酯，分别命名为B28，B46和B64，共聚酯的含量为1至15 wt％。通过在50℃下在60/40重量％的苯酚/四氯乙烷溶剂中进行溶液共混来制备所有样品。然后通过差示扫描量热法研究样品的结晶行为。结果表明这三种共聚酯以类似于成核剂的方式加速PET的结晶速率。 PET结晶速率的加速在PET / B28共混物中最为明显，最高含量为B28的10 wt％。共混物的熔融温度与纯PET相当。所观察到的结晶行为变化是由共聚酯在聚酯结晶过程中的物理状态以及共混物中共聚酯的量的影响所解释的。 （C）2000 John Wiley＆Sons，Inc. [参考：18]

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