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    STUDIA CHEMIA - Issue no. 4 / 2021  
         
  Article:   THE STUDY OF THE RHEOLOGICAL BEHAVIOR AND THE OXIDATION STABILITY OF SOME COSMETIC EMULSIONS.

Authors:  ADELA MANEA, ANDRA TAMAȘ, SABINA NIȚU, DELIA PERJU.
 
       
         
  Abstract:  
DOI: 10.24193/subbchem.2021.4.21

Published Online: 2021-12-30
Published Print: 2021-12-30
pp. 283-295

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The paper presents the rheological behavior study of cosmetic emulsions as well as their oxidation stability. The influence of temperature and of the cooling rate was determined, as well as that of the active principles content on the rheological behavior, by setting the dependence between the shear stress and the shear rate . The analysis of this dependence demonstrates that these emulsions present non-Newtonian behavior. The oxidation stability was monitored for 210 days by determining the peroxide value and the presence of initial and final oxidation products (by monitoring K232 and K270 values, respectively).

Keywords: cosmetic emulsions, emulsifier, mathematical models, oxidation, rheological behavior, stability, viscosity, peroxide value
 
         
     
         
         
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