流变学
化学
乙醇
粘度
乙醇沉淀
色谱法
降水
喷雾干燥
冷冻干燥
材料科学
复合材料
有机化学
物理
气象学
作者
Yong Wang,Lijun Wang,Dong Li,Jiangtao Xue,Zhi Huai Mao
标识
DOI:10.1016/j.carbpol.2009.03.025
摘要
Flaxseed gum solutions were extracted and dried by different methods: ethanol precipitation, freeze drying, 105 °C oven drying, 80 °C oven drying, spray drying, and vacuum drying. The effects of these drying methods on the rheological properties of flaxseed gum were investigated in present study. Ethanol precipitation increased the apparent viscosity of flaxseed gum solution, while all the other methods decreased the apparent viscosity. Most of the drying methods slightly increased the activation energy, except ethanol precipitation. In frequency sweep test, all the drying methods reduced the G′ and G″ values. In creep–recovery tests, the data were modeled by Berger’s model. The E2 and η1 values were reduced by all of the drying methods in this study. Some relationships were found between the parameters in the Power Law model of the frequency sweep test and the parameters in Berger’s model.
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