双向导向的碳纤维/复合材料具有较高的导热性和增强的电磁干扰屏蔽效率
Jianan Song1, Yicheng Fan2, Anjun Shi1
1School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212000, China.
Materials (Basel, Switzerland)
|October 28, 2023
概括
研究人员开发了双向碳纤维 (CF) /复合材料,用于电子产品中先进的热管理和电磁屏蔽. 这种新的结构提高了导热性,屏蔽效率和机械强度,解决了设备开发中的关键挑战.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物复合材料 聚合物复合材料
- 纳米技术 纳米技术
背景情况:
- 有效的热管理和电磁屏蔽对于现代电子设备至关重要.
- 改善聚合物复合材料的多方向导热性和电磁屏蔽仍然是一个挑战.
- 现有的解决方案往往难以提供同时的,多方向的性能增强.
研究的目的:
- 制造双向导向的碳纤维 (CF) /复合材料,具有类似交换桥的结构.
- 研究这种结构对热,电和机械性能的影响.
- 为了解决当前聚合物复合材料在热和电磁屏蔽应用中的局限性.
主要方法:
- 使用一种简单的制造方法,创建双向导向的碳纤维 (CF) /复合材料.
- 结构模仿交叉桥以促进多方向通道.
- 描述包括拉伸强度,导热率和电磁干扰屏蔽有效性测量.
主要成果:
- 面向双向的CF结构促进了高效的热和电路.
- 由于交叉排列的CF阵列,复合材料在垂直和水平方向均表现出增强的拉伸强度.
- 在62.3%重量%的填充剂含量下,实现的抗拉强度为6.18MPa,导热率为25.3W/m·K,EMI屏蔽效率为61.6dB.
结论:
- 开发的双向导向的CF/复合材料为热管理和电磁屏蔽提供了有前途的解决方案.
- 这种类似交叉桥的结构是实现卓越的多方向性能的关键.
- 这些复合材料显示出在先进电子设备中应用的巨大潜力.
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