Magnet-responsive, superhydrophobic fabrics from waterborne, fluoride-free coatings
Name
c7ra10941e.pdf
Description
Published version
Size
914.3 KB
Format
Adobe PDF
Checksum (MD5)
0895b9e01587ae3af01effc0a290f34e
Author(s)
Fu, Sida
Zhou, Hua
Wang, Hongxia
Ding, Jie
Liu, Shuai
Zhao, Yan
Niu, Haitao
Rutledge, Gregory C.
Lin, Tong
Date Issued
January 2018
Journal
RSC Advances
Publisher
Royal Society of Chemistry (RSC)
Citation
Fu, Sida, et al. “Magnet-Responsive, Superhydrophobic Fabrics from Waterborne, Fluoride-Free Coatings.” RSC Advances 8, 2 (2018,): 717–23. © 2018 The Royal Society of Chemistry
Version
Final published version
Abstract
In this study, durable superhydrophobic fabrics with magnet responsive properties were prepared by a two-step coating technique using polydopamine (PDA), Fe[subscript 3]O[subscript 4] nanoparticles, and hexadecyltrimethoxysilane as coating materials. The coated fabrics exhibit fast magnetic responsivity and a water contact angle of 156°. The coating is durable enough to withstand at least 50 cycles of home laundering and 500 cycles of Martindale abrasions without losing its superhydrophobicity and magnetic properties. The PDA pre-coating plays a significant role in improving the adhesion of hydrophobic Fe[subsript 3]O[subscript 4] nanoparticles on fabric surface. The coated fabric is highly oleophilic (oil contact angle ¼ 0°). When used for absorbing oil, the coated fabric floats naturally on the surface of oily water, and it can be moved to approach oil
drops under magnetic actuation. The fabric is reusable for at least 10 cycles. This may offer an environmentally friendly way to prepare “smart” oil-recovery materials.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution 3.0 unported license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1039/c7ra10941e
