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    STUDIA CHEMIA - Issue no. 3 / 2011  
         
  Article:   THE RHEOLOGICAL STUDY OF SOME SOLUTIONS BASED ON SURFACE-ACTIVE AGENTS (II).

Authors:  ANDRA TĂMĂȘ. 		 
       
         
  Abstract:  The paper presents the rheological behavior study of some solutions based on surface-active agents used as auxiliaries in oil extraction technology. The influence of surfactants’ structure and concentration was determined, as well as that of temperature, on the rheological behavior, by setting the dependence between the shear stress and the shear rate . The analysis of dependence demonstrates that the solutions studied present non-Newtonian behavior (yield-pseudoplastic and simple pseudoplastic).

Keywords: Yield-pseudoplastic behavior, shear rate, shear stress, surfactant 		 
         
     
         
         
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