化工新型材料

化工新型材料 ›› 2020, Vol. 48 ›› Issue (12) : 154-156. DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.037

科学研究

高浓度剪切增稠液的制备及流变性能

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作者信息 +

Preparation and rheological property of shear thickening liquid with high concentration

Zheng Jianhua¹, Cao Haijian¹, Chen Qingqing², Zhang Lingli², Huang Xiaomei¹

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文章历史 +

Received		Published
2019-09-18		2020-12-20
Issue Date	Revised Date
2021-01-21	2019-09-18

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摘要

以直径为12nm的SiO₂作为分散相,以分子量不同的聚乙二醇(PEG200、PEG400)作为分散介质,通过机械搅拌和超声震荡方法制备不同浓度(26%、28%、30%、32%、34%)的剪切增稠液(STF);采用流变仪(Anton PaarMCR102型)测试STF的稳态流变性能,重点研究浓度、分散介质种类对STF稳态流变性能的影响规律。结果表明:STF的最大黏度随着浓度的增加而增加;剪切增稠响应时间随着浓度的增加而减小;分散介质为PEG200的STF体系流变性能好于PEG400。

Abstract

Using SiO₂ with a diameter of 12nm as the dispersed phase and polyethylene glycol (PEG200,PEG400) with different molecular weights as the dispersion medium,shear thickening fluid (STF) with different concentrations(26%,28%,30%,32%,34%) were prepared by mechanical stirring and ultrasonic vibration The steady-state rheological properties of STF were tested by Anton Paar MCR102 rheometer,and the influence of concentration and dispersion medium on the steady rheological properties was studied.The results shown that the maximum viscosity of STF increased with the increase of concentration,the response time of shear thickening decreased with the increase of concentration The rheological property of STF system with dispersion medium of PEG200 was better than that of PEG400.

关键词

剪切增稠液 / 流变性能 / 分散相 / 分散介质 / 高浓度

Key words

shear thickening liquid / rheological property / dispersed phase / dispersion medium / high concentration

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高浓度剪切增稠液的制备及流变性能[J]. 化工新型材料, 2020, 48(12): 154-156 DOI:10.19817/j.cnki.issn 1006-3536.2020.12.037

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