Dilational Rheology Properties of Branch-performed Particle Gel by Relaxation Measurements

doi:10.7503/cjcu20121153

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (6): 1434.doi: 10.7503/cjcu20121153

• Physical Chemistry • Previous Articles Next Articles

Dilational Rheology Properties of Branch-performed Particle Gel by Relaxation Measurements

TANG Li^1,2, LUO Lan¹, FANG Hong-Bo³, ZONG Hua³, ZHANG Lei¹, ZHANG Lu¹, ZHAO Sui¹

1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Shengli Engineering and Consulting Co., Ltd., Shengli Oilfield Company of SINOPEC, Dongying 257000, China

Received:2012-12-20 Online:2013-06-10 Published:2013-05-15
Contact: O647 E-mail:zhaosui@mail.ipc.ac.cn;luyiqiao@hotmail.com

Abstract

Abstract:

The interfacial dilational rheological properties of a novel polyacrylamide derivative, branch-preformed particle gel(PPG), were studied by interfacial tension relaxation measurements. The effects of electrolytes and conventional polyacrylamide on dilational rheological properties of PPG were studied. The dilational elasticity and viscosity components of different systems were calculated by Fourier transform and displayed as Cole-Cole curves. The results show that interfacial elasticity and viscosity components of PPG solutions both increase due to the formation of interfacial net structure with the increasing bulk concentration. Electrolyte will neutralize the excess charge of PPG, thus decreases dilational elasticity and viscosity. When mixed with liner polyacrylamide, the more complex structure is formed, but the overall viscoelasticity of the system is still determined by PPG.

Key words: Branch-preformed particle gel(PPG), Polyacrylamide, Dilational rheology, Interfacial tension relaxation, Cole-Cole curve

CLC Number:

O647

TrendMD:

TANG Li, LUO Lan, FANG Hong-Bo, ZONG Hua, ZHANG Lei, ZHANG Lu, ZHAO Sui. Dilational Rheology Properties of Branch-performed Particle Gel by Relaxation Measurements[J]. Chem. J. Chinese Universities, 2013, 34(6): 1434.

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Dilational Rheology Properties of Branch-performed Particle Gel by Relaxation Measurements

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