Chemical Carbonization of Paper Made from Wood Pulp without Thermal Decomposition Using a Catalyst and Structural Properties of the Carbonized Paper

Kyotani, Mutsumasa; Fujino, Kenichi; Imai, Daisuke; Goto, Shisei

doi:10.2115/fiberst.2018-0025

Cited by 5 publications

(1 citation statement)

References 24 publications

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“…Based on this fundamental understanding, various strategies have been developed to fabricate superhydrophobic surfaces on different substrates in recent years, such as the sol/gel method, 26,27 chemical vapor deposition, 28 ink‐jet printing 17 and phase separation 29 . Nevertheless, these existing methods were not implemented to the fabrication of superhydrophobic papers yet, which was due to that the cellulose paper has significantly different chemical and physical properties from other substrates like metals, 30–32 glasses, 33 and plastics, 34 their physical strength and chemical stability are relatively low 35,36 . Paper is made from wood, and its main compound is fibrous cellulose, which is easily damaged and even decomposed by thermal, physical and chemical treatments 37 .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of the superhydrophobic natural cellulosic paper with different wettability and oil/water separation application

Yun

Tong

Wang

et al. 2020

J of Applied Polymer Sci

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Renewable superhydrophobic materials have attracted great attention due to their extensive applications in the fields such as cost‐effective and biodegradable oil/water separation field. Herein, we reported an eco‐friendly and facile methodology to develop the superhydrophobic cellulosic paper by immersion method using the ethanol solution of stearic acid. Furthermore, the treated cellulosic papers showed super‐hydrophobicity with water contact angle (WCA) above 153°. Interestingly, this method can realize superhydrophobic‐hydrophilic conversion by simply adjusting the temperature and is amenable for different substrates and with the WCA of 114‐162°. More importantly, the utilization of fluorinated reagents has been avoided, thereby minimizing the production cost and improving safety and environmental aspects. Meanwhile, the modified natural cellulosic paper is applied for oil–water separation, and its separation efficiency was as high as 95% after 10 cycles, indicating the good reusability of stearic acid modified filter papers. Consequently, this simple strategy based on the stearic acid immersion method thus provided an easy conversion of superhydrophobic‐hydrophilic interface and provided facile strategies for conversion of commercial quantitative filter paper to functional materials for oil/water separation.

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