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A green and facile approach to the efficient surface modification of alumina nanoparticles with fatty acids

机译:一种绿色简便的方法,用脂肪酸对氧化铝纳米颗粒进行有效的表面改性

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摘要

A general, green and facile approach to the efficient surface modification of alumina and other metal oxide nanoparticles with fatty acids have been proposed. In this process, only water was used as the dispersing medium, the modified metal oxide nanoparticles were automatically separated from water, and water can be recycled. The modification efficiency, using oleic acid as an example, of this water alone method was 36% higher than that of the water-ethanol method, which is a result of higher opportunity of interfacial reaction between oleic acid and Al2O3 molecules on the surface of alumina nanoparticles dispersed in water only. The modification efficiency increases with increasing chain length of the fatty acids. After modification with fatty acids, the crystalline structure of alumina remains unchanged, the agglomeration of alumina nanoparticles was largely reduced, and much better dispersion of modified alumina nanoparticles in organic matrix than the raw ones was achieved. (C) 2018 Elsevier B.V. All rights reserved.
机译:已经提出了用脂肪酸对氧化铝和其他金属氧化物纳米颗粒进行有效表面改性的通用,绿色且简便的方法。在该方法中,仅将水用作分散介质,将修饰的金属氧化物纳米颗粒自动从水中分离出来,并且可以将水再循环。仅以水为例,这种水法的改性效率比水-乙醇法高36%,这是由于油酸与氧化铝表面上的Al2O3分子之间发生界面反应的机会更高纳米粒子仅分散在水中。修饰效率随着脂肪酸链长的增加而增加。用脂肪酸改性后,氧化铝的晶体结构保持不变,氧化铝纳米颗粒的团聚被大大降低,并且改性氧化铝纳米颗粒在有机基质中的分散性要比未加工的好。 (C)2018 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Applied Surface Science》 |2018年第31期|664-672|共9页
  • 作者单位

    Soochow Univ, Coll Chem Chem Engn & Mat Sci, Jiangsu Key Lab Design & Applicat Adv Funct Polym, State & Local Joint Engn Lab Novel Funct Polymer, Suzhou 215123, Peoples R China;

    Soochow Univ, Coll Chem Chem Engn & Mat Sci, Jiangsu Key Lab Design & Applicat Adv Funct Polym, State & Local Joint Engn Lab Novel Funct Polymer, Suzhou 215123, Peoples R China;

    Soochow Univ, Coll Chem Chem Engn & Mat Sci, Jiangsu Key Lab Design & Applicat Adv Funct Polym, State & Local Joint Engn Lab Novel Funct Polymer, Suzhou 215123, Peoples R China;

    Zhangjiagang Unikever New Mat Technol Co Ltd, Zhangjiagang 215600, Peoples R China;

    Soochow Univ, Coll Chem Chem Engn & Mat Sci, Jiangsu Key Lab Design & Applicat Adv Funct Polym, State & Local Joint Engn Lab Novel Funct Polymer, Suzhou 215123, Peoples R China;

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

    Alumina; Metal oxide; Nanoparticle; Surface modification; Fatty acid;

    机译:氧化铝;金属氧化物;纳米粒子;表面改性;脂肪酸;

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