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PEO/SiO2水溶液流变性研究 被引量:2

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摘要 本文研究了PEO/SiO2水溶液的流变性能,通过稳态和动态剪切实验,分别考察了PEO、SiO2的含量对体系流动曲线,触变性和动态黏弹性的影响。结果表明提高二者浓度,体系黏度均增大,区别是提高PEO浓度时,溶液剪切变稀的性质更加明显,提高SiO2浓度时,流动曲线上的峰位置前移。当PEO含量较低时,无法形成触变环,提高二者含量时,触变性显现。 PEO浓度增大时,弹性模量和损耗模量均增大,两条曲线在某一角频率相交,继续增大PEO浓度,交点向高频方向移动;增大SiO2浓度,交点向低频方向移动。
出处 《计量技术》 2014年第7期3-6,共4页 Measurement Technique
基金 资助项目:国家科技支撑计划项目(2011BAI02805)
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