含氧化铁超疏水棉织物的制备及性能
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陕西省教育厅专项科研计划项目(17JK0324);大学生创新创业训练项目(1718)


Preparation and Properties of Superhydrophobic Cotton Fabric with Iron Oxide
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Special scientific research project of Shaanxi Provincial Education Department (17JK0324); Innovation and entrepreneurship training program for college students (1718)

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    摘要:

    以丙烯酸丁酯与乙烯基硅树脂乳液共聚合成疏水乳液;用沉淀法制备α-Fe2O3纳米粒子,并用硅烷偶联剂对其进行表面改性。用疏水乳液和α-Fe2O3分散液对棉织物进行浸涂,制备超疏水棉织物。采用XRD、FTIR和SEM对α-Fe2O3和超疏水棉织物的结构、形貌进行表征。考察乳液和α-Fe2O3分散液浸涂次数对棉织物疏水性能的影响,研究紫外光照射对超疏水棉织物润湿性能的影响,测定超疏水棉织物的油水分离性能。结果表明,用疏水乳液和α-Fe2O3分散液分别浸涂2次即可使棉织物具有良好的超疏水性,接触角可达158.6?。经紫外光照射后,织物正面转变成为超亲水;而反面仍为超疏水状态,棉织物显示出单向导湿性能。超疏水棉织物对油水混合物中油、水的分离效率分别为96.1% 和99.0%。

    Abstract:

    Hydrophobic emulsion was synthesized by copolymerization of butyl acrylate and vinyl silicone resin. α-Fe2O3 nanoparticles were prepared by precipitation method, and then modified by the silane coupling agent. Superhydrophobic cotton fabric was prepared by dip-coating of cotton fabric with hydrophobic emulsion and α-Fe2O3 dispersion. The structure and morphology of α-Fe2O3 and superhydrophobic cotton fabric were characterized by XRD, FTIR and SEM. The influence of the dip-coating times of emulsion and α-Fe2O3 dispersing on the hydrophobicity of cotton fabric was investigated. And the influence of UV irradiation on the wettability of superhydrophobic cotton fabric was studied. Moreover, oil-water separation performance of the superhydrophobic cotton fabric was determined. The results showed that the cotton fabric obtained superhydrophobicity after 2 times dip-coating of hydrophobic emulsion and α-Fe2O3 dispersion respectively, and its contact angle was 158.6?. After UV irradiation, the front side of the fabric turned to be superhydrophilic, while the reverse side was still superhydrophobic, the resulting cotton fabric showed unidirectional moisture conductivity. The separation efficiency of superhydrophobic cotton fabric to oil and water in oil-water mixture was 96.1% and 99.0%, respectively.

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张彩宁,刘筱,王煦漫,刘笑笑,宋美娟,赵明远.含氧化铁超疏水棉织物的制备及性能[J].精细化工,2018,35(12):

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历史
  • 收稿日期:2018-06-20
  • 最后修改日期:2018-08-27
  • 录用日期:2018-08-28
  • 在线发布日期: 2018-12-07
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