Thermo-responsive superhydrophobic paper using nanostructured cellulose stearoyl ester
2014 | journal article. A publication with affiliation to the University of Göttingen.
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Details
- Authors
- Geissler, Andreas; Loyal, Florian; Biesalski, Markus; Zhang, Kai
- Abstract
- Hydrophilic paper was rendered with hydrophobic and superhydrophobic property after the treatment with solutions and nanoparticles of cellulose stearoyl ester (CSE), respectively. Cellulose stearoyl ester with a degree of substitution of 2.99 was synthesized from cellulose using stearoyl chloride. By dip-coating paper in CSE solution of at least 3 mg/ml in toluene, paper became hydrophobic with stable water contact angles of more than 120°. After further spray-coating using CSE nanoparticles that were prepared from CSE solution via nanoprecipitation, paper surface became superhydrophobic with water contact angles of larger than 150°. These superhydrophobic surfaces also exhibited self-cleaning character. Furthermore, the superhydrophobic paper surfaces showed a temperature-responsive character and could be turned hydrophobic after a heat-treatment at 70 °C for 5 min.
- Issue Date
- 2014
- Journal
- Cellulose
- Organization
- Fakultät für Forstwissenschaften und Waldökologie ; Burckhardt-Institut ; Abteilung Holztechnologie und Holzwerkstoffe ; Juniorprofessur Holztechnologie und Holzchemie
- Language
- English