Preparation of Nano-SiO_2/Amino-modified Polysiloxane Hybrid Superhydrophobic Coating and Thermal-stability Characterization  

作　　者：李金桦 翁睿 

机构地区：[1]School of Materials Science and Engineering, Wuhan University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2014年第1期35-39,共5页武汉理工大学学报（材料科学英文版）

基　　金：Supported by National High Technology Research and Development ProgramofChina(863Program)(No.2003AA305920)

摘　　要：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 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 ℃.

关 键 词：NANO-SIO2 amino-modified polysiloxane THERMAL-STABILITY SUPERHYDROPHOBIC 

分 类 号：O614.411[理学—无机化学]