| 几种聚乙烯毛细管流变性能的研究 |
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| 引用本文： | 阳范文,赵治国,何浏炜. 几种聚乙烯毛细管流变性能的研究[J]. 工程塑料应用, 2011, 39(1): 40-43 |
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| 作者姓名： | 阳范文 赵治国 何浏炜 |
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| 作者单位： | 金发科技股份有限公司产品研发中心,广州,510520 |
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| 摘 要： | 采用高压毛细管流变仪研究了聚乙烯(PE)在225℃和250℃下的流变行为.结果表明,PE的粘度随着剪切速率的增加而降低,相同结构PE的粘度随熔体流动速率(MFR)的增加而降低;在同一温度和剪切速率下,当MFR相当时茂金属线性低密度聚乙烯(PE-MLLD)的粘度最大、线性低密度聚乙烯(PE-LLD)次之、低密度聚乙烯(P...
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| 关 键 词： | 聚乙烯 毛细管 粘度 流变性能 |
STUDY ON THE CAPILLARY RHEOLOGICAL PROPERTIES OF POLYETHYLENE |
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| Yang Fanwen,Zhao Zhiguo,He Liuwei. STUDY ON THE CAPILLARY RHEOLOGICAL PROPERTIES OF POLYETHYLENE[J]. Engineering Plastics Application, 2011, 39(1): 40-43 |
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| Authors: | Yang Fanwen Zhao Zhiguo He Liuwei |
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| Affiliation: | (Kingfa Science and Technology Co.Ltd.,Guangzhou 510520,China) |
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| Abstract: | The rheological properties of polyethylene were studied by Haake rheological tester,the difference of apparent viscosity for different polyethylene between 225℃ and 250℃ were discussed.The results showed that the apparent viscosity decreased with increase of shear rate,the apparent viscosity of polyethylene with same structure decreased with increase of MFR.When the temperature and shear rate remained unchanged,the apparent viscosity of PE-MLLD was higher than that of PE-LLD,PE-LLD was higher than that of PE-LD.For PE-MLLD with nearly MFR,the apparent viscosity of PE-MLLD increased with increase of density.For PE-LLD with nearly MFR and different density,the apparent viscosity of PE-LLD had more influence than MFR. |
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| Keywords: | polyethylene capillary viscosity rheological properties |
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