超亲水性
材料科学
防反射涂料
聚电解质
逐层
化学工程
Zeta电位
润湿
涂层
图层(电子)
硅酸钠
制作
接触角
硅酸钙
聚合物
纳米技术
纳米颗粒
复合材料
工程类
病理
医学
替代医学
作者
Hongxia Guo,Pengzhi Sun,Yucang Liang,Yu Ma,Zhenping Qin,Suping Cui
标识
DOI:10.1016/j.cej.2014.05.025
摘要
Superhydrophilic and antireflective coatings were fabricated via the layer-by-layer (LbL) assembly method with in situ precipitation of sodium silicate and calcium acetate on quartz or glass slide substrate. The influences of assembly conditions on the growth behavior, surface topologies, zeta potentials, wettability, antifogging behavior and transmittances of the multilayer coatings have been investigated in details. The results indicated that more than three deposition cycles with 3.27 g/L calcium silicate hydrates (CSH) solution were optimal condition for the fabrication of a superhydrophilic and antireflective coating structure of poly(ethyleneimine)/poly(sodium 4-styrenesulfonate) (PEI/PSS–CSH)3 with 98.0% of transmittance, and even 99.4% of (PEI/PSS–CSH)4 multilayer film. Additionally, the 3.0 bilayers of PEI–PSS/CSH coatings exhibited superior antifogging characteristics. This in situ formation of CSH nanoparticles in the LbL film offers a potential strategy to fabricate multifunctional films for a variety of technological applications.
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