Flow analyses of highly concentrated xhantan gum fluid

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International Journal of Chemistry and Technology
Volume:2 Issue:2
Flow analyses of highly concentrated xhantan gum fluid

Flow analyses of highly concentrated xhantan gum fluid

Pages : 135-140

View : 36 | Download : 13

Publication Date : 2018-12-28

Article Type : Research Paper

Abstract :The concentration effect of Xanthan gum insert ignore into journalissuearticles values(XG); solutions insert ignore into journalissuearticles values(1.0, 1.5, 2.0, 2.5% w/v); on the rheological flow parameters are examined using stress controlled rheometer and gravity driven flow set-up measurement at 25°C . Concentrated XG solutions has yielding behavior obtained by fitting results through Herschel-Bulkley insert ignore into journalissuearticles values(HB); model with highest regression coefficient R 2 = 0.995 and R 2 = 0.993 respectively by rheometer and set-up measurement. The results agreed well each other from these measurements. Increasing the concentration of XG solutions promote dynamic and static yield stresses due to increase of entanglement structure density of XG solutions. Also, the magnitudes of c onsistency index, K , have increasing trend with XG concentration as a result of increasing entanglement density of XG structure. Static yield stress values are much closely dynamic stress values getting from under gravity dynamic flow indicating that supplies undisturbed moleculer structure of XG due to nature of creeping flow.
Keywords : Xanthan Gum, Dynamic Yield Stress, Static Yield Stress, Rheometer

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