The Experts below are selected from a list of 4203 Experts worldwide ranked by ideXlab platform
Sui Zhao - One of the best experts on this subject based on the ideXlab platform.
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interfacial dilational properties of di substituted alkyl benzene Sulfonates at kerosene water and crude oil water interfaces
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2017Co-Authors: He Zhou, Lu Zhang, Qing Luo, Qingtao Gong, Ziyu Liu, Miao Liu, Lei Zhang, Sui ZhaoAbstract:Abstract In this research, the interfacial properties of di-substituted alkyl benzene Sulfonates at kerosene/water and daqing crude oil/water interfaces have been studied by interfacial tension and interfacial dilational rheological measurements. The experimental results show that the di-substituted alkyl benzene Sulfonates can obviously lower the interfacial tensions of kerosene/water and daqing crude oil/water interfaces. The mixed adsorption of active components with sulfonate molecules will reduce or improve interfacial tension at low or high surfactant concentration respectively. Moreover, the adsorption layers formed by di-substituted alkyl benzene sulfonate molecules shows high value of modulus at kerosene/water interface due to the strong interactions among long alkyl chains. However, the mixed adsorption of active components with sulfonate molecules will destroy the tight arrangement of surfactant molecules and result in the obvious decrease of modulus. The possible mechanism has been proposed and ensured by modulus-interfacial pressure curves.
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interfacial dilational properties of tri substituted alkyl benzene Sulfonates at air water and decane water interfaces
Journal of Colloid and Interface Science, 2008Co-Authors: Lei Zhang, Lu Zhang, Sui Zhao, Qingtao Gong, Xiaochun Wang, Jiayong YuAbstract:Abstract The dilational rheological properties of absorbed film of three pairs of structural isomers, tri-substituted alkyl benzene Sulfonates, at the air–water and decane–water interfaces have been investigated by drop shape analysis method. The influences of bulk concentration on dilational elasticity and viscosity were expounded. Interfacial tension relaxation method was employed to obtain dilational parameters in a reasonably broad frequency range. The experimental results showed that the meta-alkyl to sulfonate group plays a crucial role in the interfacial dilational properties: the longer meta-alkyl will lead to higher dilational parameters for air–water interface and lower ones for decane–water interface when the total alkyl carbon numbers are equal. For alkyl benzene Sulfonates with shorter meta-alkyl, the surface dilational properties are similar to interfacial dilational properties, whereas the surface dilational parameters are obviously higher than the interfacial dilational parameters for alkyl benzene Sulfonates with longer meta-alkyl in general. The possible mechanism has been proposed and ensured by Cole–Cole plots.
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studies of synergism for lowering dynamic interfacial tension in sodium α n alkyl naphthalene sulfonate alkali acidic oil systems
Journal of Colloid and Interface Science, 2004Co-Authors: Yanping Chu, Yong Gong, Xiaoli Tan, Lu Zhang, Sui ZhaoAbstract:Alkylnaphthalene Sulfonates with high purity were selected as model components to research synergism for lowering interfacial tension (IFT) in surfactant/alkali/acidic oil systems. The dynamic IFTs between alkylnaphthalene Sulfonates with different alkyl chain length and n-decane, oleic acid model oil, or Shengli crude oil were measured. The results showed that the alkylnaphthalene Sulfonates with different alkyl chain lengths had different synergism with different acidic components and their ionized acids under the same conditions. The synergism for lowering dynamic IFT in alkylnaphthalene sulfonate/alkali/acidic oil systems was controlled by alkylnaphthalene sulfonate concentration, alkyl chain length, alkali concentration, alkali type, and oleic acid concentration: optimal physicochemical conditions were necessary to the best synergism. This indicates that the synergism among added surfactant acidic components in crude oil and their ionized acids is controlled by the ratio of their interfacial concentrations.
Lu Zhang - One of the best experts on this subject based on the ideXlab platform.
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interfacial dilational properties of di substituted alkyl benzene Sulfonates at kerosene water and crude oil water interfaces
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2017Co-Authors: He Zhou, Lu Zhang, Qing Luo, Qingtao Gong, Ziyu Liu, Miao Liu, Lei Zhang, Sui ZhaoAbstract:Abstract In this research, the interfacial properties of di-substituted alkyl benzene Sulfonates at kerosene/water and daqing crude oil/water interfaces have been studied by interfacial tension and interfacial dilational rheological measurements. The experimental results show that the di-substituted alkyl benzene Sulfonates can obviously lower the interfacial tensions of kerosene/water and daqing crude oil/water interfaces. The mixed adsorption of active components with sulfonate molecules will reduce or improve interfacial tension at low or high surfactant concentration respectively. Moreover, the adsorption layers formed by di-substituted alkyl benzene sulfonate molecules shows high value of modulus at kerosene/water interface due to the strong interactions among long alkyl chains. However, the mixed adsorption of active components with sulfonate molecules will destroy the tight arrangement of surfactant molecules and result in the obvious decrease of modulus. The possible mechanism has been proposed and ensured by modulus-interfacial pressure curves.
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interfacial dilational properties of tri substituted alkyl benzene Sulfonates at air water and decane water interfaces
Journal of Colloid and Interface Science, 2008Co-Authors: Lei Zhang, Lu Zhang, Sui Zhao, Qingtao Gong, Xiaochun Wang, Jiayong YuAbstract:Abstract The dilational rheological properties of absorbed film of three pairs of structural isomers, tri-substituted alkyl benzene Sulfonates, at the air–water and decane–water interfaces have been investigated by drop shape analysis method. The influences of bulk concentration on dilational elasticity and viscosity were expounded. Interfacial tension relaxation method was employed to obtain dilational parameters in a reasonably broad frequency range. The experimental results showed that the meta-alkyl to sulfonate group plays a crucial role in the interfacial dilational properties: the longer meta-alkyl will lead to higher dilational parameters for air–water interface and lower ones for decane–water interface when the total alkyl carbon numbers are equal. For alkyl benzene Sulfonates with shorter meta-alkyl, the surface dilational properties are similar to interfacial dilational properties, whereas the surface dilational parameters are obviously higher than the interfacial dilational parameters for alkyl benzene Sulfonates with longer meta-alkyl in general. The possible mechanism has been proposed and ensured by Cole–Cole plots.
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studies of synergism for lowering dynamic interfacial tension in sodium α n alkyl naphthalene sulfonate alkali acidic oil systems
Journal of Colloid and Interface Science, 2004Co-Authors: Yanping Chu, Yong Gong, Xiaoli Tan, Lu Zhang, Sui ZhaoAbstract:Alkylnaphthalene Sulfonates with high purity were selected as model components to research synergism for lowering interfacial tension (IFT) in surfactant/alkali/acidic oil systems. The dynamic IFTs between alkylnaphthalene Sulfonates with different alkyl chain length and n-decane, oleic acid model oil, or Shengli crude oil were measured. The results showed that the alkylnaphthalene Sulfonates with different alkyl chain lengths had different synergism with different acidic components and their ionized acids under the same conditions. The synergism for lowering dynamic IFT in alkylnaphthalene sulfonate/alkali/acidic oil systems was controlled by alkylnaphthalene sulfonate concentration, alkyl chain length, alkali concentration, alkali type, and oleic acid concentration: optimal physicochemical conditions were necessary to the best synergism. This indicates that the synergism among added surfactant acidic components in crude oil and their ionized acids is controlled by the ratio of their interfacial concentrations.
Lei Zhang - One of the best experts on this subject based on the ideXlab platform.
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interfacial dilational properties of di substituted alkyl benzene Sulfonates at kerosene water and crude oil water interfaces
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2017Co-Authors: He Zhou, Lu Zhang, Qing Luo, Qingtao Gong, Ziyu Liu, Miao Liu, Lei Zhang, Sui ZhaoAbstract:Abstract In this research, the interfacial properties of di-substituted alkyl benzene Sulfonates at kerosene/water and daqing crude oil/water interfaces have been studied by interfacial tension and interfacial dilational rheological measurements. The experimental results show that the di-substituted alkyl benzene Sulfonates can obviously lower the interfacial tensions of kerosene/water and daqing crude oil/water interfaces. The mixed adsorption of active components with sulfonate molecules will reduce or improve interfacial tension at low or high surfactant concentration respectively. Moreover, the adsorption layers formed by di-substituted alkyl benzene sulfonate molecules shows high value of modulus at kerosene/water interface due to the strong interactions among long alkyl chains. However, the mixed adsorption of active components with sulfonate molecules will destroy the tight arrangement of surfactant molecules and result in the obvious decrease of modulus. The possible mechanism has been proposed and ensured by modulus-interfacial pressure curves.
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interfacial dilational properties of tri substituted alkyl benzene Sulfonates at air water and decane water interfaces
Journal of Colloid and Interface Science, 2008Co-Authors: Lei Zhang, Lu Zhang, Sui Zhao, Qingtao Gong, Xiaochun Wang, Jiayong YuAbstract:Abstract The dilational rheological properties of absorbed film of three pairs of structural isomers, tri-substituted alkyl benzene Sulfonates, at the air–water and decane–water interfaces have been investigated by drop shape analysis method. The influences of bulk concentration on dilational elasticity and viscosity were expounded. Interfacial tension relaxation method was employed to obtain dilational parameters in a reasonably broad frequency range. The experimental results showed that the meta-alkyl to sulfonate group plays a crucial role in the interfacial dilational properties: the longer meta-alkyl will lead to higher dilational parameters for air–water interface and lower ones for decane–water interface when the total alkyl carbon numbers are equal. For alkyl benzene Sulfonates with shorter meta-alkyl, the surface dilational properties are similar to interfacial dilational properties, whereas the surface dilational parameters are obviously higher than the interfacial dilational parameters for alkyl benzene Sulfonates with longer meta-alkyl in general. The possible mechanism has been proposed and ensured by Cole–Cole plots.
Qingtao Gong - One of the best experts on this subject based on the ideXlab platform.
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interfacial dilational properties of di substituted alkyl benzene Sulfonates at kerosene water and crude oil water interfaces
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2017Co-Authors: He Zhou, Lu Zhang, Qing Luo, Qingtao Gong, Ziyu Liu, Miao Liu, Lei Zhang, Sui ZhaoAbstract:Abstract In this research, the interfacial properties of di-substituted alkyl benzene Sulfonates at kerosene/water and daqing crude oil/water interfaces have been studied by interfacial tension and interfacial dilational rheological measurements. The experimental results show that the di-substituted alkyl benzene Sulfonates can obviously lower the interfacial tensions of kerosene/water and daqing crude oil/water interfaces. The mixed adsorption of active components with sulfonate molecules will reduce or improve interfacial tension at low or high surfactant concentration respectively. Moreover, the adsorption layers formed by di-substituted alkyl benzene sulfonate molecules shows high value of modulus at kerosene/water interface due to the strong interactions among long alkyl chains. However, the mixed adsorption of active components with sulfonate molecules will destroy the tight arrangement of surfactant molecules and result in the obvious decrease of modulus. The possible mechanism has been proposed and ensured by modulus-interfacial pressure curves.
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interfacial dilational properties of tri substituted alkyl benzene Sulfonates at air water and decane water interfaces
Journal of Colloid and Interface Science, 2008Co-Authors: Lei Zhang, Lu Zhang, Sui Zhao, Qingtao Gong, Xiaochun Wang, Jiayong YuAbstract:Abstract The dilational rheological properties of absorbed film of three pairs of structural isomers, tri-substituted alkyl benzene Sulfonates, at the air–water and decane–water interfaces have been investigated by drop shape analysis method. The influences of bulk concentration on dilational elasticity and viscosity were expounded. Interfacial tension relaxation method was employed to obtain dilational parameters in a reasonably broad frequency range. The experimental results showed that the meta-alkyl to sulfonate group plays a crucial role in the interfacial dilational properties: the longer meta-alkyl will lead to higher dilational parameters for air–water interface and lower ones for decane–water interface when the total alkyl carbon numbers are equal. For alkyl benzene Sulfonates with shorter meta-alkyl, the surface dilational properties are similar to interfacial dilational properties, whereas the surface dilational parameters are obviously higher than the interfacial dilational parameters for alkyl benzene Sulfonates with longer meta-alkyl in general. The possible mechanism has been proposed and ensured by Cole–Cole plots.
Jiayong Yu - One of the best experts on this subject based on the ideXlab platform.
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interfacial dilational properties of tri substituted alkyl benzene Sulfonates at air water and decane water interfaces
Journal of Colloid and Interface Science, 2008Co-Authors: Lei Zhang, Lu Zhang, Sui Zhao, Qingtao Gong, Xiaochun Wang, Jiayong YuAbstract:Abstract The dilational rheological properties of absorbed film of three pairs of structural isomers, tri-substituted alkyl benzene Sulfonates, at the air–water and decane–water interfaces have been investigated by drop shape analysis method. The influences of bulk concentration on dilational elasticity and viscosity were expounded. Interfacial tension relaxation method was employed to obtain dilational parameters in a reasonably broad frequency range. The experimental results showed that the meta-alkyl to sulfonate group plays a crucial role in the interfacial dilational properties: the longer meta-alkyl will lead to higher dilational parameters for air–water interface and lower ones for decane–water interface when the total alkyl carbon numbers are equal. For alkyl benzene Sulfonates with shorter meta-alkyl, the surface dilational properties are similar to interfacial dilational properties, whereas the surface dilational parameters are obviously higher than the interfacial dilational parameters for alkyl benzene Sulfonates with longer meta-alkyl in general. The possible mechanism has been proposed and ensured by Cole–Cole plots.
