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Design of a superhydrophobic and superoleophilic film using cured fluoropolymer@silica hybrid

机译：使用固化的氟聚合物@二氧化硅杂化材料设计超疏水和超亲油薄膜

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摘要

Recently, considerable efforts have been made on superhydrophobic-superoleophilic filter to satisfy the requirements of the applications to oil/water separation. In this work, we obtained a superhydrophobic and superoleophilic film by coating cured fluoropolymer@silica hybrid on stainless steel mesh. Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) and thermogravimetric-differential scanning calorimetry (TG-DSC) were used to determine the chemical composition and thermal stability of the sample. The effect of silica nanoparticles (NPs) concentration on the surface property of the hybrid film was analyzed by scanning electron microscopy (SEM), atomic force microscopy (AFM) and contact angle analyzer. The results indicate that silica NPs not only enhance the thermal stability, but also strengthen the hydrophobicity and oleophilicity of the film. When 20 wt% silica NPs was added into the thermosetting fluoropolymer, the hybrid film shows both superhydrophobicity and superoleophilicity owing to the large surface roughness factor (RMS) and porous structure. Moreover, the hybrid film could be used to separate water from different oils effectively. When the pore size of the mesh is less than 300 mu m, the oil/water separation efficiency of the film reaches above 99%, which shows a great potential application to dehydrate fuel oils. (C) 2016 Elsevier B.V. All rights reserved.
机译：近来，已经对超疏水-超亲油性过滤器做出了相当大的努力，以满足油/水分离应用的要求。在这项工作中，我们通过在不锈钢网上涂覆固化的含氟聚合物@二氧化硅杂化物，获得了超疏水和超亲油性薄膜。傅里叶变换红外光谱（FT-IR），X射线光电子能谱（XPS）和热重差示扫描量热法（TG-DSC）用于确定样品的化学成分和热稳定性。通过扫描电子显微镜（SEM），原子力显微镜（AFM）和接触角分析仪分析了二氧化硅纳米颗粒（NPs）浓度对杂化膜表面性能的影响。结果表明，二氧化硅纳米颗粒不仅增强了热稳定性，而且增强了薄膜的疏水性和亲油性。当向热固性含氟聚合物中添加20 wt％二氧化硅NPs时，由于大的表面粗糙度系数（RMS）和多孔结构，杂化膜同时显示出超疏水性和超亲油性。此外，该杂化膜可用于有效地将水与不同油分离。当筛孔的孔径小于300μm时，膜的油/水分离效率达到99％以上，这显示了在使燃料油脱水方面的巨大潜力。 （C）2016 Elsevier B.V.保留所有权利。

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  • 来源
    《Applied Surface Science》 |2016年第ptaa期|268-273|共6页
  • 作者

    Yang Hao; Pi Pihui; Yang Zhuo-ru; Lu Zhong; Chen Rong;

  • 作者单位

    Wuhan Inst Technol, Minist Educ, Key Lab Green Chem Proc, Xiongchu St, Wuhan 430073, Peoples R China|Wuhan Inst Technol, Sch Chem & Environm Engn, Xiongchu St, Wuhan 430073, Peoples R China;

    South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

    South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

    Wuhan Inst Technol, Minist Educ, Key Lab Green Chem Proc, Xiongchu St, Wuhan 430073, Peoples R China|Wuhan Inst Technol, Sch Chem & Environm Engn, Xiongchu St, Wuhan 430073, Peoples R China;

    Wuhan Inst Technol, Minist Educ, Key Lab Green Chem Proc, Xiongchu St, Wuhan 430073, Peoples R China|Wuhan Inst Technol, Sch Chem & Environm Engn, Xiongchu St, Wuhan 430073, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Superhydrophobic; Superoleophilic; Fluoropolymer; Silica; Hybrid; Oil/water separation;

    机译：超疏水;超亲油;含氟聚合物;二氧化硅;杂化;油水分离;

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