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首页> 外文期刊>Journal of Applied Polymer Science >Toughening Effects of Nucleating Agent on Impact Polypropylene Copolymer
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Toughening Effects of Nucleating Agent on Impact Polypropylene Copolymer

机译：成核剂对抗冲聚丙烯共聚物的增韧作用

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摘要

In this study, the impact polypropylene copolymer (IPC) blended with the sorbitol-based nucleating agent (NA) NX8000 was prepared and then characterized using a wide range of instrumentations. The results showed that the NA formed a fibril network which resulted in the increased viscosity of system and the decreased size of ethylene–propylene random copolymer (EPR) phase. The results of mechanical tests revealed "the brittle–ductile transition (BDT)" occurred while the ethylene content was between 3.5 wt % and 6 wt % and indicated that the impact strength of IPC was greatly improved by the addition of NX8000 when the EPR content was right over the critical value of BDT. The investigations provided valuable information for the further development of IPC materials and boarded its potential industrial applications.
机译：在这项研究中，制备了与基于山梨醇的成核剂（NA）NX8000共混的抗冲聚丙烯共聚物（IPC），然后使用多种仪器对其进行了表征。结果表明，NA形成原纤维网络，导致体系粘度增加，乙烯-丙烯无规共聚物（EPR）相尺寸减小。机械测试结果表明，当乙烯含量在3.5 wt％和6 wt％之间时，发生了“脆-延性转变（BDT）”，这表明当EPR含量增加时，NX8000可以大大提高IPC的冲击强度。完全符合BDT的关键价值。这些调查为IPC材料的进一步开发提供了有价值的信息，并为其潜在的工业应用铺平了道路。

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