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Preparation and characterization of resin-derived carbon foams reinforced by hollow ceramic microspheres

机译：中空陶瓷微球增强树脂衍生碳泡沫的制备与表征

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摘要

Carbon foam materials were prepared with phenolic resole resin as precursor and hollow ceramic micro-spheres as reinforcement. The resultant carbon foams had a bulk density of between 0.22 and 0.27 g/cm~3. Analysis of scanning electron micrographs indicated that the cells were mainly open with incomplete cell membranes, and the hollow ceramic microspheres were located in the junctions. Compression test results showed that the carbon foams with 1 wt% hollow ceramic microspheres exhibited the highest compressive strength (7.76 Mpa). Thermal conductivity measurements revealed that the introduction of hollow ceramic microspheres improved the thermal insulating property. The thermal conductivity of carbon foams ranged from 0.11 to 0.25 W m~(-1) K~(-1) at room temperature, which makes carbon foams a prime choice for thermal insulation.
机译：以酚醛酚醛树脂为前驱体，以空心陶瓷微球为增强体制备碳泡沫材料。所得的碳泡沫的堆积密度为0.22至0.27g / cm 3。扫描电子显微照片分析表明，细胞主要是不完整的细胞膜开放，中空的陶瓷微球位于连接处。压缩测试结果表明，具有1 wt％的空心陶瓷微球的碳泡沫具有最高的压缩强度（7.76 Mpa）。热导率测量表明，空心陶瓷微球的引入改善了热绝缘性能。室温下碳泡沫的导热系数在0.11到0.25 W m〜（-1）K〜（-1）之间，这使得碳泡沫成为绝热的主要选择。

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  • 来源
    《Materials Science and Engineering》 |2010年第15期|p.3392-3395|共4页
  • 作者

    Shaobo Wang; Ruiying Luo; Yongfeng Ni;

  • 作者单位

    School of Physics and Nuclear Energy Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, PR China;

    School of Physics and Nuclear Energy Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, PR China;

    School of Physics and Nuclear Energy Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    carbon foam; mechanical properties; microstructure; thermal conductivity;

    机译：碳泡沫机械性能微观结构导热系数;

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