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低浓度阿拉伯树胶溶液的流变特性及影响因素研究

作  者:
王元兰;李忠海;张乐华
单  位:
中南林业科技大学
关键词:
阿拉伯树胶;低浓度;流变特性;粘度
摘  要:
以低浓度阿拉伯树胶溶液为研究对象,考察了其流变特性及浓度、剪切速率、温度、pH、搅拌时间对溶液粘度的影响。结果表明,低浓度阿拉伯树胶溶液的粘度随溶液浓度的增加呈下降趋势,表现为牛顿流体的特性;在一定浓度下表现出剪切稀化的特性;其粘度对温度有一定的依赖性,粘度随温度的升高呈波动性变化;在pH低于5时,其粘度随pH的下降而显著升高,在pH为5.79~11.17的范围,粘度不受pH变化的影响;低浓度阿拉伯树胶溶液在不同的搅拌时间作用下具有不同的粘度。
译  名:
低浓度阿拉伯树胶溶液的流变特性及影响因素研究
关键词:
arabic gum;low-concentration;rheology;viscosity
摘  要:
The effects of the rheological properties of low-concentration arabic gum with different concentration,shearing rate,temperature,pH and stirring time on the viscosity of gum solution was studied.The results showed this fluid behaved like Newtonian fluid.The viscosity of low-concentration arabic gum was distinct reduced with shearing rate and its viscosity was fluctuated with temperature.At low concentration,the viscosity of arabic gum solution was distinct reduced when its pH was under 5.0,the viscosity of low-concentration gum solution was constant when its pH in the range of 5.79~11.17.The viscosity was also influenced with different stirring time.

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