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摘要
通过在不锈钢网上包覆沸石涂层并用氟硅烷改性制备出稳固的超疏水网格,并考察其雾水收集性能。水热反应时间为24 h时,水滴在改性后的不锈钢网上的接触角最大为155°,达到超疏水效果,且对水滴的粘附力低。雾水收集实验结果表明,与未处理的不锈钢网相比,超疏水网格的收集速率最大提升93%。此外超疏水网格具有良好的稳定性,分别在1 mol/L HCl、1 mol/L NaOH和3.5% NaCl溶液中浸泡48 h后,网格仍然表现出良好的疏水与雾水收集效果;在2 000目砂纸上经60个磨损循环后,接触角仍能达到145°,雾水收集性能优异。
Abstract
A stable superhydrophobic mesh is prepared by coating zeolite on stainless steel mesh and then modifying it with fluorosilane,and its fog water collection performance is investigated.Results show that the maximum contact angle of water droplets on modified the mess is 155° when the hydrothermal reaction holds 24 hours,achieving a superhydrophobic effect.The prepared mess has a low adhesion against water droplet.Compared to untreated stainless steel mesh,its fog water collection speed is increased by up to 93%.In addition,the prepared superhydrophobic mesh exhibits a good stability.After the mesh has been respectively immersed in 1 mol·L-1 HCl,1 mol·L-1 NaOH and 3.5% NaCl solution for 48 h,it still shows good hydrophobic and fog water collection effects.After it has been abrased for 60 cycles on a 2 000 mesh sandpaper,its water contact angle can still reach 145°,and its fog water collection efficiency is still good.
关键词
超疏水
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稳定性
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收集速率
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雾收集
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沸石
Key words
superhydrophobic
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stability
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collection speed
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fog collection
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zeolite
Author summay
李锐(1995-),男,硕士研究生,研究方向为雾水收集,1511679355@qq.com
超疏水不锈钢网的制备及其雾水收集性能研究[J].
, 2020, 40(11): 92-97 DOI:10.16606/j.cnki.issn0253-4320.2020.11.019