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Experimental Measurement of Equilibrium Surface Tension of An Aqueous Solution of Polyethylene Glycol and A Surfactant
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نویسنده
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Beiranvand Fateme ,Najibi Hesam ,Hashemi Shahraki Bahram
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منبع
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Iranian Journal Of Oil And Gas Science And Technology - 2020 - دوره : 9 - شماره : 3 - صفحه:26 -43
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چکیده
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A device is designed and constructed for measuring the equilibrium surface tension of water and a number of other solutions. the measured equilibrium surface tension of water, as a reference fluid, has good consistency with literature data. moreover, the equilibrium surface tension of the aqueous solutions of surfactants and polymer composed of sodium dodecyl sulphate (sds), triton cg-110, dimethyl di-dodecyl-ammonium bromide (ddab), and polyethylene glycol (peg) with different molecular weights of 200, 300, 400, and 600, as well as that of the ternary solutions of sds/peg/water, triton cg-110/peg/water, and ddab/peg/water at 293.15 k and atmospheric pressure are measured. the equilibrium surface tension of the aqueous solutions of peg 600 are measured at 296.15 k because peg 600 is solid at 293.15 k. the measured data are compared with the predictions of thermodynamic models, and the results show that redlich-kister (rk) model has the lowest error in predicting the experimental data.
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کلیدواژه
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Equilibrium Surface Tension ,Surfactants ,Polyethylene Glycol ,Thermodynamic Models
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آدرس
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Petroleum University Of Technology, Iran, Petroleum University Of Technology, Department Of Gas Engineering, Iran, Petroleum University Of Technology, Department Of Gas Engineering, Iran
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پست الکترونیکی
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vahid.vasfi@gmail.com
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Authors
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