911 / 2022-08-26 15:44:35
3D Printing of High-performance Oriented BN-epoxy Composite Resin
3D printing,orientation,high-performance
终稿
Peiliang Lin / State Key Lab of Power Transmission Equipment & System Security and New Technology School of Electrical Engineering & Chongqing University;Shantou Power Supply Bureau of Guangdong Power Grid Co., Ltd
Jinshui Ji / State Key Lab of Power Transmission Equipment & System Security and New Technology School of Electrical Engineering & Chongqing University;Shantou Power Supply Bureau of Guangdong Power Grid Co., Ltd
Run He / State Key Lab of Power Transmission Equipment & System Security and New Technology School of Electrical Engineering & Chongqing University
Haohuan Wang / State Key Lab of Power Transmission Equipment & System Security and New Technology School of Electrical Engineering & Chongqing University
Jian Li / State Key Lab of Power Transmission Equipment & System Security and New Technology School of Electrical Engineering & Chongqing University
Zhengyong Huang / State Key Lab of Power Transmission Equipment & System Security and New Technology School of Electrical Engineering & Chongqing University
The integrated development of power devices puts forward higher requirements for the performance of thermal conductive materials. It is difficult to obtain high-performance thermally conductive materials by common methods. In this paper, composites with highly orientated hBN were prepared by DLP 3D printing. When the thickness of the 3D printing layer is less than the thickness of the hBN sheet, under the pressure of the printing platform, the large particle size hBN with higher content will align along the printing layer, thus achieving the orientation function, and the degree of orientation can also be adjusted by controlling the thickness of the printing layer. Because the hBN orientation direction plays an important role in the heat conduction of the composite resin, the oriented printing material can significantly increase the thermal conductivity. The dielectric constant of the composite with hBN is still low. The impact strength rises first and then decreases, and the bending strength has a more obvious increase, the maximum values of the two being 10.2KJ.m-2 and 135Mpa respectively. At 20% hBN content, thermal conductivity can reach 2.1 Wm-1K-1 when the heat flow is parallel to the orientation direction of hBN. The low-layer thickness orientation method has a high advantage over other current methods in thermal conductivity and mechanical properties, and it has broad application prospects in the field of 3D printing materials engineering.
重要日期
  • 会议日期

    09月25日

    2022

    09月29日

    2022

  • 08月15日 2022

    提前注册日期

  • 09月10日 2022

    报告提交截止日期

  • 11月10日 2022

    注册截止日期

  • 11月30日 2022

    初稿截稿日期

  • 11月30日 2022

    终稿截稿日期

主办单位
IEEE DEIS
承办单位
Chongqing University
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