Application of a factorial design to the study of specific parameters of a Carbopol ETD 2020 gel. Part I. Viscoelastic parameters.

@article{Contreras2002ApplicationOA,
  title={Application of a factorial design to the study of specific parameters of a Carbopol ETD 2020 gel. Part I. Viscoelastic parameters.},
  author={Manuel D. Contreras and Rodrigo S{\'a}nchez},
  journal={International journal of pharmaceutics},
  year={2002},
  volume={234 1-2},
  pages={139-47}
}
This work studies the application of a 2(3) factorial design to a cosmetic gel with the aim of simplifying the analysis of the influence of the concentration of Carbopol ETD 2020 (cb), of ethanol (et) and of glycerin (gl) on the viscoelastic parameters: equilibrium modulus (Gn), critical molecular weight (Mc), degree of structuring (logG'/lognu) and viscous modulus (G"). We have obtained high linear polynomial correlations among the components and the response factors determined. The results… CONTINUE READING