4.7 Article

Constructing Tanghulu-like Diamond@Silicon carbide nanowires for enhanced thermal conductivity of polymer composite

期刊

COMPOSITES COMMUNICATIONS
卷 29, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.coco.2021.101008

关键词

Diamond; SiC nanowires; CVD; Polymer composites; Thermal conductivity

资金

  1. National Natural Science Foundation of China [51573201, U1709205]
  2. CAS Youth Innovation Promotion Association [2020301]
  3. National Key R&D Program of China [2017YFB0406000, 2017YFE0128600]
  4. Chinese Academy of Sciences [XDC07030100, XDA22020602, ZDKYYQ20200001, ZDRW-CN-2019-3]
  5. Science and Technology Major Project of Ningbo [2018B10046, 2016S1002]
  6. Natural Science Foundation of Ningbo [2017A610010]
  7. Foundation of State Key Laboratory of Solid lubrication [LSL-1912]
  8. K.C. Wong Education Foundation [GJTD-2019-13]
  9. National Key Laboratory of Science and Technology on Advanced Composites in Special Environ-ments [6142905192806]

向作者/读者索取更多资源

Polymer composites with high thermal conductivity are in high demand for electronic packaging fields due to their light weight, easy process, and high chemical resistance. The development of a novel hybrid filler structure, similar to a Tanghulu-like structure, has shown to significantly enhance thermal conductivity and heat transportation performance in the polymer composites, representing a promising strategy for future applications in electronic packaging.
Polymer composites with high thermal conductivity possess light weight, easy process and high chemical resistance, which has a huge demand in electronic packaging fields. Therefore, the development of new filler for improving the thermal conductivity has attracted lots of attentions in the field of polymer composites. In this work, a new hybrid filler was prepared through depositing nano-crystalline diamonds on SiC nanowires by hot filaments chemical vapor deposition. The results of SEM and TEM characterizations showed that the filler has a novel structure which is similar as a string of sugar-coated haws on a stick (a kind of Chinese candied fruit, named Tanghulu). Polymer composites containing the filler with the Tanghulu-like structure presented the high thermal conductivity of 0.57 W m-1 K-1 under 25 wt% filler contents. The excellent thermal conduction performance is attributed to the regional continuous networks formed by filler with the Tanghulu-like structure. Infrared images and a cooling radiator were utilized to further confirm the high thermal transportation performance of the polymer composites. The development of Tanghulu-like diamond@silicon carbide nanowires proposes a new strategy to prepare polymer composites with enhanced thermal conductivity, which will further promote the application in electronic packaging fields.

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