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各向异性堆叠结构环氧树脂复合材料的热防护性能

李佳蓬 夏岚松 张平 刘东

李佳蓬, 夏岚松, 张平, 刘东. 各向异性堆叠结构环氧树脂复合材料的热防护性能[J]. 仁和测试, 2020, 32(3): 031003. doi: 10.13374/j.issn2095-9389.2019.06.001
引用本文: 李佳蓬, 夏岚松, 张平, 刘东.

各向异性堆叠结构环氧树脂复合材料的热防护性能

[J]. 仁和测试, 2020, 32(3): 031003. doi: 10.13374/j.issn2095-9389.2019.06.001
Jiapeng Li, Lansong Xia, Ping Zhang, Dong Liu. Anisotropic stacked epoxy composites with excellent thermal properties[J]. Rhhz Test, 2020, 32(3): 031003. doi: 10.13374/j.issn2095-9389.2019.06.001
Citation: Jiapeng Li, Lansong Xia, Ping Zhang, Dong Liu.

Anisotropic stacked epoxy composites with excellent thermal properties

[J]. Rhhz Test, 2020, 32(3): 031003. doi: 10.13374/j.issn2095-9389.2019.06.001

各向异性堆叠结构环氧树脂复合材料的热防护性能

doi: 10.13374/j.issn2095-9389.2019.06.001
基金项目: 国家自然科学基金项目(51306156);西南科技大学龙山人才计划项目(17LZX647,18lzx509);西南科技大学研究生创新基金项目(19ycx0089)
详细信息
    作者简介:

    李佳蓬(1995—),男,硕士,从事仪器设备热防护研究,13699621216@qq.com

    通讯作者:

    刘 东(1984—),男,副教授,博士,从事电子设备热设计方面的研究, dtld123@126.com

  • 中图分类号: TQ320

Anisotropic stacked epoxy composites with excellent thermal properties

  • 摘要:

    基于导热-隔热原理,通过在环氧树脂(Epon)中添加质量分数为5%,15%,25%的六方氮化硼(h-BN)作为填料制备环氧基散热层,质量分数为1%的膨胀蛭石(E-ver)作为填料制备环氧基隔热层,设计了宏观交替堆叠的环氧复合材料,并进行了热防护性能的研究。研究结果表明:具有各向异性结构的复合材料,顶部中心温度较传统材料的温度下降13~16 ℃,热延迟时间大大提升,并随着h-BN含量的增加,热性能得到明显改善。理论分析了该堆叠结构下复合材料“横向散热、纵向抑热”的机理。

  • 图  1  堆叠复合材料制备原理图

    Figure  1.  Schematic illustration of the preparation of the multilayered composites

    图  2  热性能测试平台

    Figure  2.  Experimental device for thermal performance testing

    图  3  (a)堆叠结构样品模型;(b)复合材料横截面的光学显微镜图(c)h-BN(25%质量分数)散热微层的扫描电镜图;(d)膨胀蛭石(1%质量分数)隔热微层的扫描电镜图

    Figure  3.  (a) The sample model of stacked composites; (b) The optical microscope image of interfacial morphology; (c) The SEM image of h-BN(25%) filled epoxy resin composites; (d) The SEM image of E-ver (1%) filled epoxy resin composites.

    图  4  (a)样品顶部温度随时间变化曲线;(b)样品侧边温度随时间变化曲线(底部为80 ℃面热源)

    Figure  4.  (a) Top center temperature curves of composites; (b) side-pointing temperature curves (the bottom is 80 ℃)

    图  5  (a)各向异性堆叠复合材料热防护机理图;(b)样品顶部温度随时间变化曲线(底部为120 ℃面热源)

    Figure  5.  (a)Heat transfer mechanism of multilayered composites;(b)Top center temperature curves of composites (bottom is 120 ℃)

    图  6  样品顶部中心温度随时间变化曲线(自然降温)

    Figure  6.  Top center temperature curves of the composites under natural cooling

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出版历程
  • 收稿日期:  2019-09-07
  • 修回日期:  2019-11-05
  • 刊出日期:  2020-03-17

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