| 超临界二氧化碳辅助PP/UHMWPE挤出成型的研究 |
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| 引用本文： | 张艳君,刘亚青,柳学义,齐燕燕,张晓伟.超临界二氧化碳辅助PP/UHMWPE挤出成型的研究[J].塑料工业,2006,34(11):24-26. |
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| 作者姓名： | 张艳君 刘亚青 柳学义 齐燕燕 张晓伟 |
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| 作者单位： | 中北大学材料科学与工程学院,山西,太原,030051 |
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| 摘 要： | 研究了超临界二氧化碳对超高摩尔质量聚乙烯(UHMWPE)挤出成型的影响规律。首先将纯UHMWPE样条放到超临界二氧化碳中浸泡,研究对其力学性能的影响;然后在UHMWPE中加入一定量的聚丙烯(PP)进行共混,以改善UHMWPE的加工性能,并在通入超临界二氧化碳的条件下进行挤出成型。结果表明:超临界二氧化碳确能有效改善UHMWPE的加工性能,有利于UHMWPE成型加工;在超临界二氧化碳通入量一定条件下PP加入量对UHMWPE的加工性能和力学性能都有一定的提高。
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| 关 键 词： | 超高摩尔质量聚乙烯 聚丙烯 超临界二氧化碳 挤出 |
| 文章编号： | 1005-5770(2006)11-0024-03 |
| 收稿时间： | 2006-08-21 |
| 修稿时间： | 2006年8月21日 |
Research of Supercritical CO2-aided Extrusion of UHMWPE |
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| ZHANG Yan-jun,LIU Ya-qing,LIU Xue-yi,QI Yan-yan,ZHANG Xiao-wei.Research of Supercritical CO2-aided Extrusion of UHMWPE[J].China Plastics Industry,2006,34(11):24-26. |
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| Authors: | ZHANG Yan-jun LIU Ya-qing LIU Xue-yi QI Yan-yan ZHANG Xiao-wei |
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| Affiliation: | College of Material Sci. and Eng., North University of China, Taiyuan 030051, China |
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| Abstract: | The influence of supercritical CO_2 on the extrusion of Ultra High Molecular Weight Polyethylene (UHMWPE) was studied. At first UHMWPE sample bar was immerged in supercritical CO_2 to study the effect of supercritical CO_2 on the mechanical properties of the bar, and then UHMWPE was blended with PP to improve the its processability. The UHMWPE/PP was extruded in the condition of injecting supercritical CO_2. The results showed supercritical CO_2 could improve the processability of UHMWPE effectively, being favourable for the extrusion of UHMWPE. When the inlet content of the supercritical CO_2 was within a certain extent, the processability and mechanical properties of UHMWPE could be improved by blending with PP. |
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| Keywords: | UHMWPE PP Supercritical CO_2 Extrusion |
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