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首页> 外文期刊>Journal of Applied Polymer Science >Ultrahigh molecular weight polyethylene/polypropylene/organo-montmorillonite nanocomposites: Phase morphology, rheological, and mechanical properties
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Ultrahigh molecular weight polyethylene/polypropylene/organo-montmorillonite nanocomposites: Phase morphology, rheological, and mechanical properties

机译：超高分子量聚乙烯/聚丙烯/有机蒙脱土纳米复合材料：相形态，流变和机械性能

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摘要

Phase morphology, rheological, and mechanical properties of ultrahigh molecular weight polyethylene (UHMWPE)/PP/organo-montmorillonite nanocomposites were investigated in this work. The results of TEM and XRD indicated that the organo-montmorillonite PMM prepared with the complex intercalator [2-methacryloyloxy-ethyldodecyldimethylammonium bromide /poly(ethylene glycol)] were exfoliated and dispersed into UHMWPE matrix, and the synergistic effect of the complex intercalator on the exfoliation and intercalation for montmorillonite occurred. Besides, the presence of PMM in UHMWPE matrix was found able to lead to a significant reduction of melt viscosity and enhancement in tensile strength and elongation at break of UHMWPE, except that izod-notched impact strength was without much obvious change. The dispersed PMM particles exhibited a comparatively large two-dimensional aspect ratio (L-clay/d(clay) = 35.5), which played an important role in determining the enhancement of mechanical properties of UHMWPE nanocomposites. (c) 2007 Wiley Periodicals, Inc.
机译：在这项工作中研究了超高分子量聚乙烯（UHMWPE）/ PP /有机蒙脱土纳米复合材料的相形态，流变学和力学性能。 TEM和XRD的结果表明，由复合嵌入剂[2-甲基丙烯酰氧基-乙基十二烷基二甲基溴化铵/聚（乙二醇）]制备的有机蒙脱土PMM被剥落并分散到UHMWPE基体中，复合嵌入剂对聚合物的协同作用。发生了蒙脱石的剥落和嵌入。此外，发现UHMWPE基体中PMM的存在能够显着降低熔体粘度，并提高UHMWPE的断裂拉伸强度和断裂伸长率，但伊佐德缺口冲击强度没有明显变化。分散的PMM颗粒具有相对较大的二维纵横比（L-粘土/ d（粘土）= 35.5），这在确定UHMWPE纳米复合材料力学性能的增强中起着重要作用。 （c）2007年Wiley Periodicals，Inc.

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