| N-羟甲基丙烯酰胺熔融接枝PP的流变性能 |
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| 引用本文： | 刘君丽,曲建林,周安宁.N-羟甲基丙烯酰胺熔融接枝PP的流变性能[J].合成树脂及塑料,2007,24(2):61-63. |
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| 作者姓名： | 刘君丽 曲建林 周安宁 |
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| 作者单位： | 西安科技大学化学与化工系,陕西,西安,710054 |
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| 摘 要： | 采用熔融接枝法在双螺杆挤出机上制得接枝率为0．20％～0．85％的N-羟甲基丙烯酰胺接枝聚丙烯(PP-g-NHA),讨论了接枝物的组成、剪切应力和剪切速率以及温度对PP-g-NHA熔体流变行为、熔体黏度的影响,测定了接枝物的非牛顿指数。在相同剪切应力时,PP-g-NHA的剪切黏度比PP低,但黏流活化能比PP高。
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| 关 键 词： | 聚丙烯 N-羟甲基丙烯酰胺接枝聚丙烯 接枝改性 流变性能 黏活化能 |
| 文章编号： | 1002-1396(2007)02-0061-03 |
| 修稿时间： | 2006-10-12 |
Rheological property of N-hydroxymethyl acrylamide grafted polypropylene |
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| Liu Junli,Qu Jianlin,Zhou Anning.Rheological property of N-hydroxymethyl acrylamide grafted polypropylene[J].China Synthetic Resin and Plastics,2007,24(2):61-63. |
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| Authors: | Liu Junli Qu Jianlin Zhou Anning |
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| Abstract: | N-hydroxymethyl acrylamide grafted polypropylene (PP-g-NHA) was prepared via melt grafting process by the aid of twin screw extruder. The grafting ratio attained 0.46%-0.85%. The effects of composition of the grafts, shear stress and shear rate as well as temperature on melt rheological behaviour and melt viscosity of PP-g-NHA were discussed. The non-Newtonian index was measured. Under the same shear stress, PP-g-NHA exhibited a lower shear viscosity and a little higher viscous flow activation energy compared with PP. |
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| Keywords: | polypropylene N-hydroxymethyl acrylamide grafted polypropylene graft modification rheology flow activation energy |
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