采用“二步聚合”法和纳米粒子沉积法相结合制备超疏水涂层,并通过调节涂层中纳米粒子含量调控涂层的结构和性能。结果表明:纳米粒子团聚使涂层表面呈微纳米多级粗糙结构,在满足应用要求的前提下,所得涂层接触角最大能达157.7°、滚动角仅为4°。该超疏水涂层在3.5% NaCl溶液中表现出良好的耐蚀性能。
The superhydrophobic coating was prepared by a combination of “two-step polymerization” and nanoparticle deposition method.The structure and properties of the coating were regulated by adjusting the content of nanoparticles in the coating.The results showed that the agglomeration of nanoparticles made the coating surface a micro-nano hierarchical rough structure.Under the premise of meeting the application requirements,the maximum contact angle of the obtained coating reached 157.7°,while the sliding angle was only 4°.The superhydrophobic coating exhibited good corrosion resistance in 3.5% NaCl solution.
[1] Fürstner R,Barthlott W,Neinhuis C,et al.Wetting and self-cleaning properties of artificial superhydrophobic surfaces[J].Langmuir,2005,21(3):956-961.
[2] Gao L,He J.A facile dip-coating approach based on three silica sols to fabrication of broadband antireflective superhydrophobic coatings[J].Journal of Colloid and Interface Science,2013,400:24-30.
[3] Wang S,Liu K,Yao X,et al.Bioinspired surfaces with superwettability:new insight on theory,design,and applications[J].Chemical Reviews,2015,115(16):8230-8293.
[4] He B,Tian L,Li J,et al.Effect of hot-stretching on morphology and mechanical properties of electrospun PMIA nanofibers[J].Fibers and Polymers,2013,14(3):405-408.
[5] Kavanagh C J,Quinn R D,Swain G W.Observations of barnacle detachment from silicones using high-speed video[J].The Journal of Adhesion,2005,81(7):843-868.
[6] Brady Jr R F.A fracture mechanical analysis of fouling release from nontoxic antifouling coatings[J].Progress in Organic Coatings,2001,43(1):188-192.
[7] Brady R,Bonafede S,Schmidt D.Self-assembled water-borne fluoropolymer coatings for marine fouling resistance[J].Surface Coatings International,1999,82(12):582-585.
[8] Nishino T,Meguro M,Nakamae K,et al.The lowest surface free energy based on-CF3 alignment[J].Langmuir,1999,15(13):4321-4323.
[9] Karapanagiotis I,Manoudis P N,Savva A,et al.Superhydrophobic polymer-particle composite films produced using various particle sizes[J].Surface and Interface Analysis,2012,44(7):870-875.
[10] Li H,Wang X,Song Y,et al.Super-“amphiphobic” aligned carbon nanotube films[J].Angewandte Chemie International Edition,2001,40(9):1743-1746.
[11] Ming W,Wu D,Van Benthem R,et al.Superhydrophobic films from raspberry-like particles[J].Nano Letters,2005,5(11):2298-2301.
[12] Lu Y,Sathasivam S,Song J,et al.Robust self-cleaning surfaces that function when exposed to either air or oil[J].Science,2015,347(6226):1132-1135.
[13] Aslanidou D,Karapanagiotis I,Panayiotou C.Tuning the wetting properties of siloxane-nanoparticle coatings to induce superhydrophobicity and superoleophobicity for stone protection[J].Materials & Design,2016,108:736-744.
[14] Wenzel R N.Resistance of solid surfaces to wetting by water[J].Industrial & Engineering Chemistry,1936,28(8):988-994.
[15] Potvin E,Brossard L,Larochelle G.Corrosion protective performances of commercial low-VOC epoxy/urethane coatings on hot-rolled 1010 mild steel[J].Progress in Organic Coatings,1997,31(4):363-373.
[16] Chen M,Yu Q,Reddy C,et al.Model study investigating the role of interfacial factors in electrochemical impedance spectroscopy measurements[J].Corrosion,2000,56(7):709-721.
[17] Zhao X,Xia Y,Whitesides G M.Soft lithographic methods for nano-fabrication[J].Journal of Materials Chemistry,1997,7(7):1069-1074.
基金资助
国家自然科学基金(51771173)
PDF
