Mahmut, T. A. S., et al. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020, 585, 124177.
This work employed electrospinning technology to produce free-standing nanofibrous polymer surfaces to fabricate transparent icephobic liquid-infused porous surfaces (SLIPS). Three lubricants (silicone oil, fluorinated oil, and paraffin liquid) were used and the infusion of lubricants provided a slippery surface, which is one of the key parameters for anti-icing applications. Moreover, SLIPS containing silicone oil and PcTFE exhibited up to 90% transmittance in the visible spectrum.
Fabrication procedure of SLIPS
· A PVDF-co-HFP solution at a concentration of 15 wt.% was prepared for the electrospinning process using a mixture of DMF and acetone in a 50:50 wt.% ratio. An applied voltage of 17.5 kV was selected, along with a flow rate of 1.25 ml/h and a collector-needle tip distance of 13 cm. The thickness of the electrospun membrane was adjusted by varying the deposition time of the fibers, resulting in a thickness of approximately 40 μm after 3 hours of deposition.
· Three different types of lubricants (PcTFE, silicone oil, and paraffin wax oil) were utilized in the creation of SLIPS. About 30 mg/cm2 of lubricant was introduced into the porous electrospun nanofiber membrane using a Pasteur pipette on a balance. Following an overnight period on a 45° tilted plate to remove excess oil, a thickness of approximately 40 μm was achieved for all samples.
