不同浓度和溶剂对剪切增稠液流变性能的影响

复合材料科学与工程 ›› 2014, Vol. 0 ›› Issue (3): 32-35.

不同浓度和溶剂对剪切增稠液流变性能的影响

景晓颖, 陆振乾

东华大学纺织学院,上海201620

收稿日期:2013-06-24 出版日期:2014-03-28 发布日期:2021-09-17
作者简介:景晓颖(1988-)女,硕士研究生,主要从事复合材料冲击动力学研究。
基金资助:
国家自然科学基金资助(10802022,10872049);教育部重大项目基金资助(3039014)

EFFECT OF SALVATION AND SUSPENDING MEDIUM ON THE RHEOLOGICAL PROPERTIES OF SHEAR THICKENING FLUID (STF)

JING Xiao-ying, LU Zhen-qian

College of Textiles, Donghua University, Shanghai 201620, China

Received:2013-06-24 Online:2014-03-28 Published:2021-09-17

摘要/Abstract

摘要： 本文考察不同浓度以及不同溶剂聚乙二醇200、聚乙二醇400、复配型的聚乙二醇/丙三醇(PEG/Gl)对二氧化硅/聚乙二醇(SiO₂/PEG)剪切增稠体系的影响,采用流变仪测试该剪切增稠液的稳态流变性能。测试表明,复配型分散介质的增稠效果不如单一分散介质,临界剪切速率PEG400<PEG200<SiO₂/PEG400/Gl< SiO₂/PEG200/Gl,因此当需要在较小剪切速率条件下增稠时,应选用分子量较大的聚乙二醇单一分散介质;同时,分散相质量分数越高,体系的增稠现象也愈明显。

关键词: 剪切增稠体系, 流变性能, 临界剪切速率

Abstract: The effect of salvation and suspending medium of PEG200, PEG400, PEG/Gl on the rheological properties of shear thickening fluid (STF) were studied with a rheometer. The results show that single suspending medium on the thickening effect are better than compound suspending medium. Compared with the critical shear rates, they showed PEG400<PEG200<SiO₂/PEG400/Gl<SiO₂/PEG200/Gl, so the larger PEG molecular weight with single dispersing medium, the better shear thickening effect has. In addition, with higher mass faction of SiO₂, the shear thickening effect is more obvious. Therefore, under small shear rate the high mass faction can be chosen to get better thickening effect.

Key words: shear thickening, rheological properties, critical shear rate

中图分类号:

TB332

景晓颖, 陆振乾. 不同浓度和溶剂对剪切增稠液流变性能的影响[J]. 复合材料科学与工程, 2014, 0(3): 32-35.

JING Xiao-ying, LU Zhen-qian. EFFECT OF SALVATION AND SUSPENDING MEDIUM ON THE RHEOLOGICAL PROPERTIES OF SHEAR THICKENING FLUID (STF)[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(3): 32-35.

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