Journal
CARBON
Volume 93, Issue -, Pages 492-501Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.05.086
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Funding
- Department of Science and Technology, New Delhi
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A novel mesoporous carbon nanocapsule (MCC)/polyvinylidene fluoride (PVDF) polymer composite based free-standing film with multifunctional properties is fabricated by a facile solution approach that is appropriate for dip coating, brush-on and spray applications. The MCC/PVDF composite film exhibits superhydrophobic properties with a water contact angle of approximately 160 degrees and a sliding angle of 5 degrees. The films have a high thermal stability (up to 350 degrees C in oxidative atmosphere) and are also electrically conductive (tunable from similar to 10(-3)Sm(-1) to 10(-2) Sm-1). The superhydrophobicity is retained even in highly corrosive acidic and basic conditions (pH 1.29-13.54, concentrated HNO3 exposure and ammonium hydroxide solution), as well in a wide humidity range (35-83%). The mesoporous carbon containers (similar to 100 nm-1 mu m size) also provide an interesting platform for encapsulating a variety of functional nanomaterials and activate release, thereby adding to the multi-functionality of the superhydrophobic conductive films of exceptional environmental stability, mechanical strength (similar to 0.1 GPa) and flexibility. (C) 2015 Elsevier Ltd. All rights reserved.
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