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首页> 外文期刊>Advanced Functional Materials >Cellulose Nanofiber Supported 3D Interconnected BN Nanosheets for Epoxy Nanocomposites with Ultrahigh Thermal Management Capability
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Cellulose Nanofiber Supported 3D Interconnected BN Nanosheets for Epoxy Nanocomposites with Ultrahigh Thermal Management Capability

机译：具有超高热管理能力的纤维素纳米纤维支持的环氧纳米复合材料3D互连BN纳米片

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摘要

Thermally conductive but electrically insulating polymer composites are highly desirable for thermal management applications because of their wide range of utilization, ease of processing, and low cost. However, the traditional approaches to thermally conductive polymer composites usually suffer from the low thermal conductivity enhancement and/or the deterioration of electrical insulating property. In this study, using cellulose nanofiber-supported 3D interconnected boron nitride nanosheet (3D-C-BNNS) aerogels, a novel method for highly thermally conductive but electrically insulating epoxy nanocomposites is reported. The nanocomposites exhibit thermal conductivity enhancement of about 1400% at a low BNNS loading of 9.6 vol%. In addition, the epoxy nanocomposites are still highly insulating, having a volume electrical resistivity of 10(15) Omega cm. The strong potential application for thermal management has been demonstrated by the surface temperature variations of the nanocomposites with time during heating and cooling.
机译：导热但电绝缘的聚合物复合材料由于其广泛的用途，易于加工和低成本而非常适合热管理应用。然而，用于导热聚合物复合材料的传统方法通常遭受低的导热率增强和/或电绝缘性能的恶化。在这项研究中，使用纤维素纳米纤维支撑的3D互连氮化硼纳米片（3D-C-BNNS）气凝胶，报道了一种高导热但电绝缘的环氧纳米复合材料的新方法。纳米复合材料在9.6 vol％的低BNNS负载下表现出约1400％的导热率增强。此外，环氧纳米复合材料仍具有很高的绝缘性，体积电阻率为10（15）Ω·cm。通过加热和冷却期间纳米复合材料的表面温度随时间变化，证明了热管理的强大潜力。

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  • 来源
    《Advanced Functional Materials》 |2017年第5期|1604754.1-1604754.9|共9页
  • 作者

    Chen Jin; Huang Xingyi; Zhu Yingke; Jiang Pingkai;

  • 作者单位

    Shanghai Jiao Tong Univ, Dept Polymer Sci & Engn, Shanghai Key Lab Elect Insulat & Thermal Ageing, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Polymer Sci & Engn, Shanghai Key Lab Elect Insulat & Thermal Ageing, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Polymer Sci & Engn, Shanghai Key Lab Elect Insulat & Thermal Ageing, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Polymer Sci & Engn, Shanghai Key Lab Elect Insulat & Thermal Ageing, Shanghai 200240, Peoples R China;

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