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One-step fabrication of 3-methacryloxypropyltrimethoxysilane modified silica and investigation of fluorinated polyacrylate/silica nanocomposite films

机译:3-甲基丙烯酰氧基丙基三甲氧基硅烷改性二氧化硅的一步制造及氟化聚丙烯酸酯/二氧化硅纳米复合膜的研究

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摘要

Vinyl group containing silica (MSiO2) nanoparticles were prepared by the co-condensation of tetraethoxysilane (TEOS) with 3-methacryloxypropyltrimethoxysilane (MPS) and applied in the miniemulsion polymerization of methyl methacrylate (MMA), butyl acrylate (BA) and 1H, 1H, 2H, 2H-heptadecafluorodecyl methacrylate (FA) to prepare fluorinated polyacrylate/silica nanocomposite particles. The morphology and particle size of MSiO2 was characterized by scanning electron microscopy (SEM). The nanocomposite films were investigated using atomic force microscopy (AFM), Fourier transform infrared (FT-IR) spectroscopy, water contact angle measurements, visible light spectroscopy, X-ray photoelectron spectroscopy (XPS) and thermogravimetry analyses (TGA). The effect of the amount of MSiO2 on the surface properties of the nanocomposite films was studied. Results showed that the MSiO2 nanoparticles presented a rough surface with a mean particle size of 200 nm. The nanocomposite film showed high transparency and the surface hydrophobicity of the fluorinated polyacrylate film was increased significantly by the incorporation of 0.04 g (0.46 wt% of monomers) of MSiO2 nanoparticles. The presence of MSiO2 contributed to the surface enrichment of the fluorinated components, and the nanocomposite film formation mechanism was proposed.
机译:通过用3-甲基丙烯酰氧基丙基三甲氧基硅烷(MPS)的四乙氧基硅烷(TEOS)共缩合制备含二氧化硅(MSIO 2)纳米颗粒,并在甲基丙烯酸甲酯(MMA),丙烯酸丁酯(BA)和1H,1H,1H,1H,1H,1H,1H,1小时, 2H,2H-庚二氟二癸基制备氟化聚丙烯酸酯/二氧化硅纳米复合粒子。通过扫描电子显微镜(SEM)的表征MSIO2的形态和粒度。使用原子力显微镜(AFM),傅立叶变换红外(FT-IR)光谱,水接触角测量,可见光光谱,X射线光电子能谱(XPS)和热重率分析(TGA)研究纳米复合膜。研究了MSIO2的效果对纳米复合材料薄膜的表面性质的影响。结果表明,MSIO2纳米颗粒呈现出粗糙表面,平均粒径为200nm。纳米复合膜显示出高透明度,氟化聚丙烯酸酯薄膜的表面疏水性通过掺入0.04g(0.46重量%的单体)的MSIO 2纳米颗粒而显着提高。 MSIO 2的存在有助于氟化组分的表面富集,提出了纳米复合膜形成机理。

著录项

  • 来源
    《RSC Advances》 |2015年第73期|共7页
  • 作者

    Yang Wei; Zhu Liqun; Chen Yichi;

  • 作者单位

    Beihang Univ Sch Mat Sci &

    Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Beijing 100191 Peoples R China;

    Beihang Univ Key Lab Bioinspired Smart Interfacial Sci &

    Techn Beijing Key Lab Bioinspired Energy Mat &

    Devices Minist Educ Sch Chem &

    Environm Beijing 100191 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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