In this study,superhydrophobic coating materials were prepared on various substrate surfaces by spraying method with diatomite earth and titanium dioxide as the micro-nano structures and PDMS as the low surface energy modifier.The coating had excellent superhydrophobic properties with a water static contact angle up to 161°,excellent surface self-cleaning performance,and heat resistance up to 350℃.After 150 times of mechanical strength test experiment,the static contact angle of the coating was still as high as 151°.It had certain application prospects in the fields of textile self-cleaning,medical waterproofing and industrial anticorrosion.
[1] Tran N G,Chun D M.Ultrafast and eco-friendly fabrication process for robust repairable superhydrophobic metallic surfaces with tunable water adhesion[J].ACS Applied Materials & Interfaces,2022,14(24):28348-28358.
[2] Chen C,Tian Z,Luo X,et al.Micro-nano-nanowire triple structure-held PDMS superhydrophobic surfaces for robust ultra-long-Term icephobic performance[J].ACS Applied Materials and Interfaces,2022,14(20):23973-23982.
[3] Yin Z,Chen X,Zhou T,et al.Mussel-inspired fabrication of superior superhydrophobic cellulose-based composite membrane for efficient oil emulsions separation,excellent anti-microbial property and simultaneous photocatalytic dye degradation[J].Separation and Purification Technology,2022(286):120504-120512.
[4] Guo X,Guo R,Fang M,et al.A novel composite protective coating with UV and corrosion resistance:load floating and self-cleaning performance[J].Ceramics International,2022,48(12):17308-17318.
[5] Ozkan E,Garren M,Manuel J,et al.Superhydrophobic and conductive foams with antifouling and oil-water separation properties[J].ACS Applied Materials & Interfaces,2023,15(5):7610-7626.
[6] 江雷.从自然到仿生的超疏水纳米界面材料[J].新材料产业,2005,23(2):4-8.
[7] Jiang L,Hou P,He S,et al.The robust superhydrophobic SiO2/diatomite/PDMS/KH-570/Me-MQ composite coating for self-cleaning application of building surface[J].Colloids and surfaces A:Physicochemical and Engineering Aspects,2022(634):127936-127945.
[8] Liu Z,Zhang C,Jing J.Bristle worm inspired ultra-durable superhydrophobic coating with repairable microstructures and anti-corrosion/scaling properties[J].Chemical Engineering Journal,2022(436):135273-135283.
[9] Mai C,Yang L,Lv C,et al.Simple preparation and study of superhydrophobic surface of triple-scale raspberry-like composite particles[J].Polymers for Advanced Technologies,2022,33(9):2736-2750.
[10] Selim M S,Fatthallah N A,Shenashen M A,et al.Bioinspired graphene oxide-magnetite nanocomposite coatings as protective superhydrophobic antifouling surfaces[J].Langmuir,2023,39(6):2333-2346.
[11] Shang B,Wang Y,Peng B,et al.Bioinspired polydopamine particles-assisted construction of superhydrophobic surfaces for oil/water separation[J].Journal of Colloid and Interface Science,2016,482(15):240-251.
[12] Liu Y,Ma J,Wu T,et al.Cost-effective reduced graphene oxide-coated polyurethane sponge as a highly efficient and reusable oil-absorbent[J].ACS Applied Materials & Interfaces,2013,5(20):10018-10026.
基金资助
延安大学校级青年项目(YDQ2020-18);国家大学生创新创业训练计划项目(S202210719038);国家大学生创新创业训练计划项目(202110719041)