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Hexagonal Boron Nitride and Graphite Oxide Reinforced Multifunctional Porous Cement Composites

机译：六方氮化硼和氧化石墨增强多功能多孔水泥复合材料

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摘要

The synthesis and characterization of multifunctional cement and concrete composites filled with hexagonal boron nitride (h-BN) and graphite oxide (CO), is reported and their superior mechanical strength and oil adsorption properties compared to composites devoid of fillers are illustrated. CO is utilized to bridge the cement surfaces while h-BN is used to mechanically reinforce the composites and adsorb the oil. Introduction of these fillers even at low filler weight fractions increases the compressive strength and toughness properties of pristine cement and of porous concrete significantly, while the porous composite concrete illustrates excellent ability for water separation and crude oil adsorption. Experimental results along with theoretical calculations show that such nanoengineered forms of cement based composites would enable the development of novel forms of multifunctional structural materials with a range of environmental applications.
机译：报道了六方氮化硼（h-BN）和氧化石墨（CO）填充的多功能水泥和混凝土复合材料的合成和表征，并显示了与不含填料的复合材料相比，它们具有优异的机械强度和吸油性能。利用CO桥接水泥表面，同时使用h-BN机械增强复合材料并吸附油。即使以低的填料重量分数引入这些填料也可显着提高原始水泥和多孔混凝土的抗压强度和韧性，而多孔复合混凝土则具有出色的水分离和原油吸附能力。实验结果和理论计算表明，这种水泥基复合材料的纳米工程形式将能够开发具有多种环境应用的新型多功能结构材料。

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  • 来源
    《Advanced Functional Materials》 |2013年第45期|5624-5630|共7页
  • 作者

    Mohammad A. Rafiee; Tharangattu N. Narayanan; Daniel P. Hashim; Navid Sakhavand; Rouzbeh Shahsavari; Robert Vajtai; Pulickel M. Ajayan;

  • 作者单位

    Department of Mechanical Engineering and Materials Science Rice University 6100 Main Street, Houston, TX 77006, USA;

    Department of Mechanical Engineering and Materials Science Rice University 6100 Main Street, Houston, TX 77006, USA;

    Department of Mechanical Engineering and Materials Science Rice University 6100 Main Street, Houston, TX 77006, USA;

    Department of Civil and Environmental Engineering Rice University Houston, TX 77005, USA;

    Department of Civil and Environmental Engineering Rice University Houston, TX 77005, USA;

    Department of Mechanical Engineering and Materials Science Rice University 6100 Main Street, Houston, TX 77006, USA;

    Department of Mechanical Engineering and Materials Science Rice University 6100 Main Street, Houston, TX 77006, USA;

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