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2-Novel Robust Superhydrophobic Coating with Self-Cleaning Properties in Air and Oil Based on Rare Earth Metal Oxide
作者:Liji Xiao,1 Min Deng,1 Weiguo Zeng, Boxiao Zhang, Zushun Xu,* Changfeng Yi, and Guangfu Liao*
關鍵字:無
論文來源:期刊
具體來源:https://doi.org/10.1021/acs.iecr.7b03131
發(fā)表時間:2017年
Herein, a simple spraying method was applied to prepare a novel robust superhydrophobic coating containing fluorinated hyperbranched polyurethane (F-HPU) resin and lanthanum oxide (La2O3). The composite coating had the maximum water contact angle (WCA) of 157° and low sliding angle (SA) of 5.5° when the content of La2O3 was 17%. Moreover, the composite coating can resist abrasion with sand paper for 80 cycles, which might be the reason that La2O3 particles adhered strongly on the substrate by the F-HPU resin with strong adhesion. Furthermore, the novel robust superhydrophobic coating can be applied in various substrates, resist water stream impact, and remain clean after being fouled by contamination in air and oil. Accordingly, the novel robust superhydrophobic coating has potential application in protection-needed materials. Meanwhile, we also provide a new application field for rare earth metal oxides and an alternative strategy for robust self-cleaning coatings.
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