Zhi Danfeng, Wang Huanhuan, Jiang Dong, Parkin Ivan P, Zhang Xia
Engineering Research Center for Nanomaterials, Henan University Kaifeng 475004 PR China
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 PR China.
RSC Adv. 2019 Apr 24;9(22):12547-12554. doi: 10.1039/c8ra10046b. eCollection 2019 Apr 17.
Superhydrophobic organic-inorganic hybrid nanocomposite coatings have received much attention because they possess the advantages of both inorganic and organic materials. Nevertheless, it is difficult to achieve strong bonding of inorganic nanoparticles to the polymer matrix while maintaining a sufficiently rough structure to impart superhydrophobicity. In this study, we fabricated silica nanoparticles with surface reactive groups that can further react with the epoxy resin. Thus, the hydrophobic silica nanoparticles were stably anchored and stabilized in the cured resin matrix while forming nanometer-scale roughness structures. The obtained silica-decorated epoxy resin coating shows great durability and water-repellency after mechanical abrasions and has superior adhesion to the substrate.
超疏水有机-无机杂化纳米复合涂层因其兼具无机材料和有机材料的优点而备受关注。然而，在保持足够粗糙的结构以赋予超疏水性的同时，实现无机纳米颗粒与聚合物基体的强键合是困难的。在本研究中，我们制备了具有可与环氧树脂进一步反应的表面反应性基团的二氧化硅纳米颗粒。因此，疏水性二氧化硅纳米颗粒在固化树脂基体中稳定锚定并稳定化，同时形成纳米级粗糙度结构。所制备的二氧化硅修饰环氧树脂涂层在机械磨损后表现出优异的耐久性和拒水性，并且对基材具有优异的附着力。
