Figure 2 schematic illustration of the cavity

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Figure 2: Schematic illustration of the cavity formation mechanisms of coatings by in cooperation of different molar ratios of PFOTES-SiO 2 to SiO 2 nanoparticles. Figure 3: FESEM images of (a) TGS 1:5, (b) TGS 2:4, (c) TGS 3:3, (d) TGS 6:0 coating surfaces at a higher magnification. The scale bar is 1 m for all images. Figure 4: Coating surface roughness obtained by optical confocal microscope. Figure 5: Liquids contact angles of the coatings, the insets are images of liquid contact angle on TGS 2:4 coating surface. Figure 6: Liquids rolling angle of the coatings, the insets are video clips of liquid rolling off the TGS 2:4 coating surface. Figure 7: Schematic illustration of the cross-section of neighboring re-entrant micro-pores in the coatings which allows for low surface energy liquids. Figure 8: Images of water and dodecane droplets gently dropped on GFRE substrates without (a), (c) and with TGS 2:4 coating (b), (d) separately. Figure 9: Cross-cut pattern of (a) TGS 1:5, (b) TGS 2:4, (c) TGS 3:3 (c), and (d) TGS 6:0 coatings. The scale bar is 200 m for all images.
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ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 26 List of Tables Table 1: Liquids with different polarity and surface energy. Table 2: Cross-cut adhesion, pencil scratch, dolly adhesion bond strength and nano-indentation results of different coatings.
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ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 27 Graphical abstract
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ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 28 Highlights Superoleophobic and superhydrophobic coatings are developed by a sol-gel method Ratio of low and high surface energy silica particles affects the coating properties An optimum coating displays repellency to liquids of surface energy from 72.4 to 29.5 mJ/m 2 The coating also shows good adhesion to substrate with excellent resistance to pencil scratch
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  • Fall '19
  • Surface tension, nU, Surface energy

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