采用喷涂法,将硅藻土和纳米氧化铝经十六烷基三甲氧基硅烷修饰后,加入树脂液配制成喷涂液涂覆在多种基底表面,经固化后,可获得表面水静态接触角高达163.4°的超疏水表面。该涂层具有优异的拒水、耐腐蚀、减阻、油水分离、表面自清洁性及抗覆冰性能。在防水自清洁纺织品、金属表面的防腐、流体机械的减阻及电力网络的防覆冰领域均有一定的应用前景。
The surface of diatomite and alumina particles was modified by hexadecyltrimethoxysilane(HDTMOS),and then the suspensions were sprayed on different substrate surfaces according to certain proportion.After curing,the superhydrophobic surface with the static water droplets contact angle of 163.4°can was obtained.The coating had excellent water repellent,corrosion resistance,drag reduction,oil-water separation,surface self-cleaning and ice resistance.It had a certain application prospect in the fields of waterproof and self-cleaning textiles,anticorrosion of metal surface,drag reduction of fluid machinery and anti-icing of power network.
[1] Xiao K,Wen L P,Jiang L.Bioinspired superwettability materials:from nature to Artificial[M].USA:John Wiley & Sons,2016,1-34.
[2] Fang R,Liu M,Liu H,et al.Bioinspired interfacial materials:from binary cooperative complementary interfaces to superwettability systems[J].Advanced Materials Interfaces,2018,5(3):1701176.
[3] Bayer I S,Krishnan K G,Robison R,et al.Thermal alternating polymer nanocomposite(TAPNC) coating designed to prevent aerodynamic insect fouling[J].Scientific Reports,2016,6:38459.
[4] Lorwanishpaisarn N,Kasemsiri P,Srikhao N,et al.Fabrication of durable superhydrophobic epoxy/cashew nut shell liquid based coating containing flower-like zinc oxide for continuous oil/water separation[J].Surface and Coatings Technology,2019,366:106-113.
[5] Kumar S,Pandey K M,Sharma K K.Advances in drag-reduction methods related with boundary layer control-a review[J].Materials Today:Proceedings,2021,45:6694-6701.
[6] Zhao L,Du Z,Tai X,et al.One-step facile fabrication of hydrophobic SiO2 coated super-hydrophobic/super-oleophilic mesh via an improved stber method to efficient oil/water separation[J].Colloids and Surfaces A Physicochemical and Engineering Aspects,2021(24):126404.
[7] Wu B R,Lyu J J,Peng C Y,et al.Inverse infusion processed hierarchical structure towards superhydrophobic coatings with ultrahigh mechanical robustness[J].Chemical Engineering Journal,2020,387:124066.
[8] Wang C Y,Shao Y,Zhang K F,et al.Facile approach to fabricate a high-performance superhydrophobic mesh[J].ACS Applied Materials and Interfaces,2021,13(13):15720-15726.
[9] Saadatbakhsh M,Asl S J,Kiani M J,et al.Slip length measurement of pdms/hydrophobic silica superhydrophobic coating for drag reduction application[J].Surface and Coatings Technology,2020,404:126428.
[10] Saffar M A,Eshaghi A,Dehnavi M R.Fabrication of superhydrophobic,self-cleaning and anti-icing ZnO/PTFE-SiO2 nano-composite thin film[J].Materials Chemistry and Physics,2021,259(1-2):124085.
[11] Li J,Wu R N,Jing Z J,et al.One-step spray-coating process for the fabrication of colorful Superhydrophobic coatings with excellent corrosion resistance[J].Langmuir,2015,31:10702-10707.
[12] 刘刚,欧宝立,赵欣欣,等.共价功能化石墨烯超疏水防腐复合涂层材料的制备[J].复合材料学报,2021,38(10):3255-3265.
[13] Wu Y,Wei Q B,Cai M R,et al.Friction:interfacial friction control[J].Advanced Materials Interfaces,2015,2(2):686.
[14] Cao M,Guo D,Yu C,et al.Water-repellent properties of superhydrophobic and lubricant-infused ‘slippery’ surfaces:a brief study on the functions and applications[J].ACS Applied Materials and Interfaces,2016,8(6):3615-3623.
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(S202010719011);国家大学生创新创业训练计划项目(202110719041)
PDF
