高浓度剪切增稠液的制备及流变性能  

Preparation and rheological property of shear thickening liquid with high concentration

作　　者：郑建华 曹海建[1] 陈清清 张玲丽 黄晓梅[1] Zheng Jianhua;Cao Haijian;Chen Qingqing;Zhang Lingli;Huang Xiaomei(Textile and Apparel College,Nantong University,Nantong 226019;Jiangsu Qiangnima New Materials Co.,Ltd.,Nantong 226499)

机构地区：[1]南通大学纺织服装学院,南通226019 [2]江苏锵尼玛新材料股份有限公司,南通226499

出　　处：《化工新型材料》2020年第12期154-156,共3页New Chemical Materials

基　　金：江苏省高校自然科学研究重大项目(18KJA430011);江苏省先进纺织工程技术中心开放基金项目(XJFZ/2018/02);宿迁市重点研发计划(H201811);南通大学大学生创新训练计划项目(2019113);南通大学纺织服装学院研究生自主创新项目(FZ201901)。

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。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 

分 类 号：TB332[一般工业技术—材料科学与工程]