复合材料的电导率,EMI吸收屏蔽性能,固化过程和机械性能
Ján Kruželák1, Andrea Kvasničáková1, Michaela Džuganová1
1Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovakia.
Polymers
|March 13, 2024
概括
使用-铁和-铁填充剂的复合材料显示出有希望的电磁干扰 (EMI) 屏蔽. 更高的-铁含量提高了在1MHz至6GHz范围内吸收屏蔽的有效性.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 聚合物科学 聚合物科学
背景情况:
- 电磁干扰 (EMI) 屏蔽对于电子设备的性能和寿命至关重要.
- 开发有效和可调节的EMI屏蔽材料仍然是一个活跃的研究领域.
- 复合材料提供了一个多功能平台,用于整合功能填充剂.
研究的目的:
- 为了研究复合材料的电磁干扰 (EMI) 吸收屏蔽效果.
- 了解电导率,电容度和EMI屏蔽性能之间的相关性.
- 为了评估费里特和碳基填充剂对复合材料性能的影响.
主要方法:
- 纳入-铁酸盐,-铁酸盐,以及它们的组合到烯-丁烯.
- 将碳黑或碳纤维添加到充满铁的复合材料中.
- 从1 MHz到6 GHz的EMI吸收屏蔽效率的评估.
- 分析电磁参数与屏蔽效率之间的相关性.
主要成果:
- 填充费里特的复合材料显示出高吸收屏蔽,但最大吸收超过6 GHz.
- 碳基填充剂增加了电导率和电容性,降低了吸收屏蔽性能.
- 含有费里特和碳基填充剂的复合材料在目标频率范围内吸收了电磁辐射.
- 组合磁性填充剂中较高的-铁含量提高了吸收屏蔽效率.
- 碳基填充剂增强了复合材料的拉伸性能.
结论:
- 在这些复合材料中的电容性,导电性和EMI吸收效率之间存在良好的相关性.
- 铁和碳基填充剂的组合为EMI屏蔽材料提供了一种可调节的方法.
- -铁含量是优化EMI吸收屏蔽有效性的关键因素.
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