| mPE的流变性能和挤出加工性能研究 |
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| 引用本文： | 廖家志 陈伟. mPE的流变性能和挤出加工性能研究[J]. 合成树脂及塑料, 1998, 15(2): 59-61 |
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| 作者姓名： | 廖家志 陈伟 |
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| 作者单位： | 北京燕山石油化工股份有限公司树脂应用研究所,中国石油化工总公司石油化工科学研究院,中国石油化工总公司石油化工科学研究院,中国石油化工总公司石油化工科学研究院 102500,北京 100083,北京 100083,北京 100083 |
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| 摘 要： | 采用毛细管流变仪和双螺杆挤出机对茂金属聚乙烯（ｍＰＥ）的流变性能和挤出造粒性能进行了研究,并与Ｚ－Ｎ型高密度聚乙烯５０００Ｓ及Ｅｘｘｏｎ公司生产的Ｆ－ｍＰＥ作为对比,发现ｍＰＥ具有特殊物流变性能,如高熔体表现粘度,挤出过程的压力振荡,剪切应力及粘度的反转现象,实验中,通过助剂的加工和工艺参数的调整,得到了粒子光滑,大小均匀的ｍＰＥ粒料。
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| 关 键 词： | 茂金属催化剂 聚乙烯 流变性能 加工性能 挤出 |
Studies on Rheology and Extrusion Properties of Metallocene - based Polyethylene |
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| Liao Jiazhi. Studies on Rheology and Extrusion Properties of Metallocene - based Polyethylene[J]. China Synthetic Resin and Plastics, 1998, 15(2): 59-61 |
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| Authors: | Liao Jiazhi |
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| Abstract: | The rheology and extrusion properties of mPE were studied by means of capillary rheometer and twin - screw extruder, and also compared with those of Z - N type 5000 S and F - mPE prepared by Exxon. Some special rheo-logical properties of mPE and F - mPE were observed, such as the high melt apparent viscosity, extrusion pressure vibration and reversal of shear stress and viscosity under different extruding temperatures. Smooth mPE pellets with controllable particle size were obtained by adding additives and adjusting extrusion processing parameters. |
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| Keywords: | metallocene based catalyst polyethylene rheological properties processing properties |
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