Towards superhydrophobic coatings made by non-fluorinated polymers sprayed from a supercritical solution
(2013) In Journal of Supercritical Fluids 77. p.134-141- Abstract
- The objective of this study was to create a superhydrophobic surface using polymers that are non-fluorinated and applying them to a surface via rapid expansion of a supercritical solution (RESS). Solubility studies of poly(epsilon-caprolactone) (PCL) and a statistical copolymer of vinyl acetate and vinyl pivalate (P(VAc-VPi))in supercritical carbon dioxide (scCO(2)) were carried out using an extraction procedure. It was found that the most suitable process parameters for spraying these polymers using the RESS technique were 30 MPa, 40 degrees C and 10% (v/v) acetone as a co-solvent. The surfaces produced were characterized in terms of their morphology and hydrophobic properties by scanning electron microscopy and contact angle... (More)
- The objective of this study was to create a superhydrophobic surface using polymers that are non-fluorinated and applying them to a surface via rapid expansion of a supercritical solution (RESS). Solubility studies of poly(epsilon-caprolactone) (PCL) and a statistical copolymer of vinyl acetate and vinyl pivalate (P(VAc-VPi))in supercritical carbon dioxide (scCO(2)) were carried out using an extraction procedure. It was found that the most suitable process parameters for spraying these polymers using the RESS technique were 30 MPa, 40 degrees C and 10% (v/v) acetone as a co-solvent. The surfaces produced were characterized in terms of their morphology and hydrophobic properties by scanning electron microscopy and contact angle measurements, respectively. The most hydrophobic surfaces were obtained by spraying the P(VAc-VPi) copolymers, giving advancing water contact angles in the range of 120-155 degrees due to the hydrophobic character of the polymer and the microstructure formed with the RESS technique. These results show great promise for the creation of superhydrophobic surfaces using non-fluorinated polymers applied to surfaces via RESS technique. (C) 2013 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3932598
- author
- Ovaskainen, Louise ; Rodriguez Meizoso, Irene LU ; Birkin, Natasha A. ; Howdle, Steven M. ; Gedde, Ulf ; Wagberg, Lars and Turner, Charlotta LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Supercritical carbon dioxide, Polymer, RESS, Surface coating
- in
- Journal of Supercritical Fluids
- volume
- 77
- pages
- 134 - 141
- publisher
- Elsevier
- external identifiers
-
- wos:000318830100017
- scopus:84876102727
- ISSN
- 0896-8446
- DOI
- 10.1016/j.supflu.2013.02.019
- language
- English
- LU publication?
- yes
- id
- eaf648f2-822f-454b-b109-6cba0ce9bdd6 (old id 3932598)
- date added to LUP
- 2016-04-01 10:04:42
- date last changed
- 2024-05-06 02:32:10
@article{eaf648f2-822f-454b-b109-6cba0ce9bdd6, abstract = {{The objective of this study was to create a superhydrophobic surface using polymers that are non-fluorinated and applying them to a surface via rapid expansion of a supercritical solution (RESS). Solubility studies of poly(epsilon-caprolactone) (PCL) and a statistical copolymer of vinyl acetate and vinyl pivalate (P(VAc-VPi))in supercritical carbon dioxide (scCO(2)) were carried out using an extraction procedure. It was found that the most suitable process parameters for spraying these polymers using the RESS technique were 30 MPa, 40 degrees C and 10% (v/v) acetone as a co-solvent. The surfaces produced were characterized in terms of their morphology and hydrophobic properties by scanning electron microscopy and contact angle measurements, respectively. The most hydrophobic surfaces were obtained by spraying the P(VAc-VPi) copolymers, giving advancing water contact angles in the range of 120-155 degrees due to the hydrophobic character of the polymer and the microstructure formed with the RESS technique. These results show great promise for the creation of superhydrophobic surfaces using non-fluorinated polymers applied to surfaces via RESS technique. (C) 2013 Elsevier B.V. All rights reserved.}}, author = {{Ovaskainen, Louise and Rodriguez Meizoso, Irene and Birkin, Natasha A. and Howdle, Steven M. and Gedde, Ulf and Wagberg, Lars and Turner, Charlotta}}, issn = {{0896-8446}}, keywords = {{Supercritical carbon dioxide; Polymer; RESS; Surface coating}}, language = {{eng}}, pages = {{134--141}}, publisher = {{Elsevier}}, series = {{Journal of Supercritical Fluids}}, title = {{Towards superhydrophobic coatings made by non-fluorinated polymers sprayed from a supercritical solution}}, url = {{http://dx.doi.org/10.1016/j.supflu.2013.02.019}}, doi = {{10.1016/j.supflu.2013.02.019}}, volume = {{77}}, year = {{2013}}, }