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We put forward a large-area and cost-effective method to fabricate superhydrophobic coating by introducing in-situ functionalized nano-SiO2 into side-amino modified hydroxy-terminated polydimethylsiloxane(SA-HTPDMS) curing system. With the characterization using water contact angle(WCA) tester, Fourier transform infrared spectroscopy(FTIR), scanning electron microscope(SEM), atomic force microscopy(AFM) and simultaneous thermal analysis, the as-prepared coating displayed a tremendous WCA of 154.8±1°, sliding angle(SA) about 3.5° and stable self-cleaning property range from-10 to 80 ℃. It was also found that the synergistic effect of surface micro-nano hierarchical structure and chemical hydrophobicity, stability from matrix had made contributions to the superhydrophobicity and excellent heat resistance up to 300 ℃.
We put forward a large-area and cost-effective method to fabricate superhydrophobic coating by introducing in-situ functionalized nano-SiO2 into a side-amino modified hydroxy-terminated polydimethylsiloxane (SA-HTPDMS) curing system. With the characterization using water contact angle ( WCA) tester, Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), atomic force microscopy (AFM) and simultaneous thermal analysis, the as-prepared coating displayed a tremendous WCA of 154.8 ± 1 °, sliding angle about 3.5 ° and stable self-cleaning property range from-10 to 80 ° C. It was also found that the synergistic effect of surface micro-nano hierarchical structure and chemical hydrophobicity, stability from matrix had made contributions to the superhydrophobicity and excellent heat resistance up to 300 ℃.