.png){kind=icon}
.png){kind=icon}
Return
Comparative Evaluation of Large Amplitude Oscillatory Shear (LAOS) Analysis Methods for Detecting Surfactant-Induced Structural Evolution in Xanthan Gum Solutions
.png){kind=icon}
OA
AI
O
H
U
DOI：10.1002/pola.70256.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In this study, the nonlinear viscoelastic response of xanthan gum (XG) solutions containing varying concentrations of tetradecyltrimethylammonium bromide (TTAB) was comparatively investigated using Fourier-transform rheology (FT-rheology), Chebyshev decomposition, Lissajous–Bowditch analysis, and Sequence of Physical Processes (SPP) analysis. It was found that increasing TTAB concentration progressively weakened the elastic XG network and promoted earlier onset of nonlinear deformation. Harmonic analysis revealed increasing nonlinear contributions through evolution of the I3/I1 ratio, while Chebyshev coefficients and Lissajous curves identified transitions in intracycle strain softening and viscous dissipation behavior. SPP analysis further provided phase-resolved mapping of elastic–viscous state evolution, enabling direct visualization of transient structural pathways during oscillatory deformation. Comparative evaluation demonstrated that the LAOS methodologies offer complementary sensitivity to surfactant-induced structural transitions, with SPP providing enhanced mechanistic interpretation of yielding dynamics and intracycle viscoelastic evolution. These findings highlight the value of integrated LAOS characterization for probing complex polymer–surfactant systems.
Keywords:
Chebyshev decomposition
Fourier-transform rheology
sequence of physical processes
surfactant
xanthan gum
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
3.6
Papers:
2.2K
Citations:
6.4K
Organization
Cited Papers