| 乙烯共聚聚丙烯流延膜树脂的凝聚态和流变特性 |
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| 引用本文： | 王英年,柯扬船,金丽晓,周豪,桑分艳.乙烯共聚聚丙烯流延膜树脂的凝聚态和流变特性[J].高分子材料科学与工程,2011(6):130-133. |
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| 作者姓名： | 王英年 柯扬船 金丽晓 周豪 桑分艳 |
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| 作者单位： | 中国石油大学(北京)化学化工学院重质油国家重点实验室;中国石油天然气股份有限公司独山子石化分公司研究院;中国石油天然气股份有限公司独山子石化分公司 |
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| 摘 要： | 研究了均聚聚丙烯流延膜树脂(CPP)和含乙烯的无规共聚聚丙烯流延膜树脂(CEPP)的结构与加工性能,采用差示扫描量热(DSC)研究CPP和CEPP结晶和熔融性能;以毛细管流变仪研究CPP和CEPP的熔体黏度与剪切应力关系及剪切速率、乙烯含量和粘流活化能的关系.研究发现,随着乙烯含量的增加,CEPP的热封温度降低而软包装...
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| 关 键 词： | 凝聚态结构 结晶性能 聚丙烯流延膜树脂 流变性能 |
Condensed and Rheological Properties of Cast Ethylene-co-Polypropylene Film Resin |
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| Yingnian Wang,Yangchuan Ke,Lixiao Jin,Hao Zhou,Fenyan Sang.Condensed and Rheological Properties of Cast Ethylene-co-Polypropylene Film Resin[J].Polymer Materials Science & Engineering,2011(6):130-133. |
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| Authors: | Yingnian Wang Yangchuan Ke Lixiao Jin Hao Zhou Fenyan Sang |
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| Affiliation: | 1.Faculty of Chemistry and Chemical Engineering,State Key Laboratory of Heavy Oil Processing, China Petroleum University,Beijing 102249,China;2.Research Institute of Dushanzi Petrochemieal Company,China Nation Petroleum Company;3.Dushanzi Petrochemical Company,China Nation Petroleum Company,Dushanzi 833600,China) |
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| Abstract: | The structure and processing properties of the homopolymer cast polypropylene film(CPP) and the random ethylene-co-propylene(CEPP) were investigated.Differential scanning calorimetry(DSC) was used to investigate crystallization and melting properties of CPP and CEPP.The capillary rheometer determined the relationship between their melt viscosity and shear stress or the shear rate.The ethylene content and the activation energy of viscous fluids were discussed.As the increase of ethylene content,the sealing temperature of CPP reduces and the flexible packaging capabilities of CPP are improved.The rheological properties show,with the experimental temperature increases,the rheological curve of CPP deviates obviously from theoretical predictions.The temperature needs to be optimized to improve the processing quality of CPP. |
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| Keywords: | structure of condensed crystallization cast propylene copolymer resin rheological properties |
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