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Summary

This study introduces a new parameter, Surface Relative Smooth, to analyze Sheet Molding Compound (SMC) surface topography and predict coatability. This method aids in understanding cavity formation and surface modification effects.

Keywords:
SMCmolding compoundssurface morphologysurface propertiestopographic characterizationvolumetrical characterization

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Area of Science:

  • Materials Science
  • Surface Engineering
  • Polymer Composites

Background:

  • Sheet Molding Compound (SMC) surfaces present complex topographical features.
  • Understanding surface characteristics is crucial for predicting material performance, such as coatability.
  • Cavity formation on SMC surfaces impacts overall material properties and application suitability.

Purpose of the Study:

  • To develop a profile model for understanding cavity formation on SMC surfaces.
  • To characterize SMC surfaces for qualification and coatability prediction.
  • To introduce and validate a new quantitative parameter for assessing surface modification effects.

Main Methods:

  • Chromatic confocal imaging was used to obtain topographical data.
  • Systematic analysis of profile data was performed to develop a surface model.
  • A novel parameter, Surface Relative Smooth, was defined and applied to quantify surface modifications.

Main Results:

  • A profile model was successfully developed to analyze SMC surface topography.
  • Cavity characterization was established as a method for qualifying SMC surfaces and predicting coatability.
  • The Surface Relative Smooth parameter effectively quantified the impact of surface modification treatments.

Conclusions:

  • The developed profile model provides insights into SMC surface cavity formation.
  • The characterization of cavities is a viable approach for predicting SMC surface coatability.
  • The Surface Relative Smooth parameter offers a universal method for evaluating surface modifications on various solid materials.