ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces
5 years ago

A Facile All-Solution-Processed Surface with High Water Contact Angle and High Water Adhesive Force

A Facile All-Solution-Processed Surface with High Water Contact Angle and High Water Adhesive Force
Xiao Liang, Cheng Zou, Lanying Zhang, Feiwu Chen, Huai Yang, Fasheng Li, Mei Chen, Wei Hu
A series of sticky superhydrophobicity surfaces with high water contact angle and high water adhesive force is facilely prepared via an all-solution-processed method based on polymerization-induced phase separation between liquid crystals (LCs) and epoxy resin, which produces layers of epoxy microspheres (EMSs) with nanofolds on the surface of a substrate. The morphologies and size distributions of EMSs are confirmed by scanning electron microscopy. Results reveal that the obtained EMS coated-surface exhibits high apparent contact angle of 152.0° and high water adhesive force up to 117.6 μN. By varying the composition of the sample or preparing conditions, the sizes of the produced EMSs can be artificially regulated and, thus, control the wetting properties and water adhesive behaviors. Also, the sticky superhydrophobic surface exhibits excellent chemical stability, as well as long-term durability. Water droplet transportation experiments further prove that the as-made surface can be effectively used as a mechanical hand for water transportation applications. Based on this, it is believed that the simple method proposed in this paper will pave a new way for producing a sticky superhydrophobic surface and obtain a wide range of use.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b07429

DOI: 10.1021/acsami.7b07429

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