The Rheological Behaviour of PA11/EVOH Blends

丁正亚; 李迎春; 王标兵; 胡国胜

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The Rheological Behaviour of PA11/EVOH Blends

更新时间：2026-09-14

- The Rheological Behaviour of PA11/EVOH Blends
- 尼龙11/EVOH共混物的流变性能研究
- Vol. 29, Issue 6, Pages: 546-549(2008)
- 作者机构：
  
  中北大学高分子与生物工程研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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丁正亚, 李迎春, 王标兵, et al. The Rheological Behaviour of PA11/EVOH Blends[J]. 2008, 29(6): 546-549.
DOI：

丁正亚, 李迎春, 王标兵, et al. The Rheological Behaviour of PA11/EVOH Blends[J]. 2008, 29(6): 546-549. DOI：

摘要

使用XLY-Ⅱ型毛细管流变仪研究了尼龙11/EVOH共混物的流变特性.实验结果表明:尼龙11/EVOH共混物为假塑性流体

在195~225℃的非牛顿指数为0.46

.63

其表观粘度随着EVOH含量的增加先减小后增加

当EVOH含量为10%时

表观粘度最小.EVOH的加入使体系的粘流活化能增大

故熔体的流变性受温度的影响较大.

Abstract

The rheological behaviour of PA11/EVOH blends is investigated by means of XLYYⅡrheometer.The results show that PA11/EVOH blends are pseudo plastic fluid.The non-Newtonian indexes are ranged from 0.46 to 0.63 in correspondence with the temperature from 195 ℃ to 225 ℃.The apparent viscosity initially reduces with the incorporation of the EVOH

then increases

and achieves the minimal when the content of EVOH is 10%.With the addition of EVOH

the increasing apparent viscous activation energy of blends indicates that the processing temperature has great influence on their rheological behaviour.

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references

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