Milling process optimization for the best surface coat adhesion of the rigid polyurethane foam
-
Rok Hafner
,
Damir Grguraš
Abstract
In this research, the influences of milling parameters on the surface quality and coat adhesion of rigid polyurethane (PU) foam are highlighted. Several surface texture parameters were correlated with the milling parameters. The correlation between the coat adhesion strength, as determined by the pull-off test, and the milling parameters was also established. The investigation revealed that traditional height distribution roughness parameters, such as Ra, Sa, Rz, and Sz, do not offer sufficient information for a proper surface adhesion evaluation. Shaping and bearing surface parameters, on the contrary, provide more information for the surface quality assessment, although the structure of the PU was found to be inhomogeneous. The evaluation of milling process effects on surface texture and coat adhesion and the determination of optimal machining conditions were derived based on response surface methodology. The goal was an adequate surface texture that provides the best coat adhesion strength.
Acknowledgments
The authors would like to thank Prof. Marko Petric and Matjaz Pavlic (both from University of Ljubljana) for their contribution to this research.
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Articles in the same Issue
- Frontmatter
- Material properties
- Steady shear and dynamic strain thickening of halloysite nanotubes and fumed silica shear thickening composite
- Diffusivity of solvents in semi-crystalline polyethylene using the Vrentas-Duda free-volume theory
- Toughening effect and mechanism of polyamide 12 and modified montmorillonite in polybenzoxazine resin
- The effects of cross-linked/uncross-linked electrospun fibrinogen/polycaprolactone nanofibers on the proliferation of normal human epidermal keratinocytes
- Frequency independent AC electrical conductivity and dielectric properties of polyaniline-based conductive thermosetting composite
- Preparation and assembly
- Study on the preparation and drug release property of soybean selenoprotein/carboxymethyl chitosan composite hydrogel
- Engineering and processing
- Interaction of nanofillers in injection-molded graphene/carbon nanotube reinforced PA66 hybrid nanocomposites
- Prediction of the yellowing of styrene-stat-acrylonitrile and acrylonitrile-butadiene-styrene during processing in an internal mixer
- Milling process optimization for the best surface coat adhesion of the rigid polyurethane foam
- A numerical analysis of calendering of Oldroyd 4-constant fluid
