Creep compliance mapping by atomic force microscopy

The use of atomic force microscopy as an important technique to analyze the dispersion of nanometric fillers and morphology in nanocomposites and polymer blends based on elastomers

“…According to the authors, the mapping method can visualize the distribution of the frequency-dependent viscoelastic properties of rubber blend specimen on the nanometer scale. Another method to measure the Young's modulus of viscoelastic samples is the creep compliance mapping by AFM [75] . According to the authors, "In this method, the local creep compliance is evaluated by measuring the time-dependent sample indentation induced by force steps".…”

Hierarchical microstructure changes and the molecular mechanism of polypropylene under a critical failure strain during creep

“…Dai et al [5] employed Burger' model and Weibull distribution function to understand the reinforcing mechanisms of creep-resistant behavior of MWCNT e polycarbonate spun nanocomposite fibers at elevated temperature. Braunsmann et al [6] gave maps of the instant glassy modulus, the equilibrium rubbery modulus, and the retardation time by quantifying the local creep compliance of the sample in terms of the standard linear solid model.…”

Note: Artificial neural networks for the automated analysis of force map data in atomic force microscopy

“…We have shown before that the use of a force step load protocol in combination with an analysis based on the (viscoelastic) standard linear solid model provides a better way to characterize the mechanical properties of this epoxy. 12 In summary, we demonstrated that force maps may contain "bad" force curves that do not show the force versus indentation behavior predicted by a chosen contact model. To obtain more reliable results, such curves must be excluded from further analysis.…”