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首页> 外文期刊>Journal of Applied Polymer Science >Utilization of some oligomers based on poly(ethylene terephthalate) wastes as modifiers for polyvinyl chloride
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Utilization of some oligomers based on poly(ethylene terephthalate) wastes as modifiers for polyvinyl chloride

机译：利用一些基于聚对苯二甲酸乙二酯废料的低聚物作为聚氯乙烯的改性剂

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Two glycolyzed products, PET-TEG and PET-BD, were prepared by depolymerization of PET wastes using 30 wt % triethylene glycol (TEG) and 40 wt % 1,4-butanediol (BD). In this work we investigated how the mechanical and electrical properties of PVC and PVC/EPDM blend were affected by mixing them with different concentrations of the two obtained glycolyzed products. Dynamic mechanical, DSC, and dielectric behaviors of PVC containing various amounts of the two modifiers were studied. The present data confirm that the a-relaxation dynamic of PVC at constant frequency shifts to a lower temperature with increasing modifier content. PVC samples containing 5 phr of the two modifiers show the highest impact strength at -30degreesC. It was noted that addition of PET-TEG to PVC or PVC/EPDM blend led to end products with enhanced insulating properties, which makes them suitable for industrial applications. (C) 2002 Wiley Periodicals, Inc. [References: 36]
机译：通过使用30 wt％的三甘醇（TEG）和40 wt％的1,4-丁二醇（BD）使PET废料解聚，制备了两种乙二醇化的产品PET-TEG和PET-BD。在这项工作中，我们研究了将PVC和PVC / EPDM共混物与不同浓度的两种获得的糖化产物混合会如何影响其机械和电气性能。研究了包含不同量的两种改性剂的PVC的动态力学，DSC和介电性能。目前的数据证实，随着改性剂含量的增加，PVC在恒定频率下的α松弛动力学转变为较低的温度。含有5 phr的两种改性剂的PVC样品在-30摄氏度时显示出最高的冲击强度。值得注意的是，在PVC或PVC / EPDM共混物中添加PET-TEG可以使最终产品具有增强的绝缘性能，从而使其适合工业应用。 （C）2002 Wiley Periodicals，Inc. [参考：36]

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