材料科学
触变性
流变学
复合材料
流变仪
聚酰胺
动态力学分析
石墨烯
剪切速率
剪切减薄
氧化物
聚合物
纳米技术
冶金
作者
Haoran Liao,Tao Yu,Yan Li
摘要
Abstract In this work, graphene oxide (GO)/polyamide 6 (PA6) nanocomposites with different graphene content (0.03–0.5 wt%) were prepared via in situ polymerization of GO and ε‐caprolactam. The linear and nonlinear rheological properties and thixotropy of GO/PA6 nanocomposites are investigated using steady state, dynamic, and transient rheological method with a Haake plate rotary rheometer. Cox/Merz rules and Cross model were used to fit the shear rate sweep and dynamic frequency sweep data, and a wider range(10 −2 –10 4 s −1 ) of flow curve was obtained. The results show the PA6 and GO/PA6 melts are shear thinning fluid without yield stress, and have thixotropy. Highlights Dynamic, steady, and transient rheological tests were performed. Cox/Merz rules and Cross model were used to fit the data. A wider range(10 −2 –10 4 s −1 ) of flow curve was obtained.
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