Slow Down Dewetting in Polymer Films by Isocyanate-treated Graphite Oxide
نویسندگان
چکیده
منابع مشابه
Dewetting of thin polymer films.
We study the dewetting of thin polymer films deposited on slippery substrate. Recent experiments on these systems have revealed many unexpected features. We develop here a model that takes into account the rheological properties of polymer melts, focussing on two dewetting geometries (the receding of a straight edge, and the opening of a hole). We show that the friction law associated with the ...
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Dynamics and morphology of hole growth in a film of power hardening viscoplastic solid [ yield stress approximately (strain-rate)(n)] is investigated. At short times the growth is exponential and depends on the initial hole size. At long times, for n>1 / 3, the growth is again exponential but with a different exponent. However, for n<1 / 3 the hole growth slows and the hole radius approaches an...
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J. Lal,1,2,3 S. Malkova,2 M. K. Mukhopadhyay,4 S. Narayanan,1 A. Fluerasu,5 S. B. Darling,6 L. B. Lurio,3 and M. Sutton7 1X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 2Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne, Illinois 60439, USA 3Department of Physics, Northern Illinois University, DeKalb, Illinois 60115, USA 4Department of Physic...
متن کاملPatterning dewetting in thin polymer films by spatially directed photocrosslinking.
In this report we examine the dewetting of spin-cast poly (styrene) films in a confined geometry. We designed a platform for laterally confining PS by photo-patterning crosslinks in spin-coated thin films. Heating the patterned film above the glass transition temperature of PS results in localized dewetting patterns in regions that were not crosslinked, while the crosslinked pattern serves as a...
متن کاملViscoelastic Dewetting of Constrained Polymer Thin Films
Thin films of fluids are playing a leading role in countless natural and industrial processes. Here we study the stability and dewetting dynamics of viscoelastic polymer thin films. The dewetting of polystyrene close to the glass transition reveals unexpected features: asymmetric rims collecting the dewetted liquid and logarithmic growth laws that we explain by considering the nonlinear velocit...
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ژورنال
عنوان ژورنال: Chinese Journal of Polymer Science
سال: 2018
ISSN: 0256-7679,1439-6203
DOI: 10.1007/s10118-018-2147-2