柔性聚合物 (乙烯基化物) 复合物与磁性修饰的石墨烯:X频段的电磁屏蔽
Saba Ayub1, Beh Hoe Guan1, Faiz Ahmad2
1Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 32610, Perak, Malaysia.
Heliyon
|November 11, 2024
概括
研究人员开发了一种新的聚合物复合物,使用磁铁改性石墨烯 (MMG) 和聚乙烯化物 (PVDF) 进行有效的电磁干扰 (EMI) 屏蔽. 10 wt%的MMG复合材料显示出高电导率和显著的EMI屏蔽,非常适合电子和航空.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 纳米技术 纳米技术
背景情况:
- 由于电子设备的广泛普及,电磁污染 (EMI) 越来越令人担忧.
- 聚合物复合材料由于其多功能性质,为EMI屏蔽提供了有前途的解决方案.
研究的目的:
- 研究用磁性修饰石墨烯 (MMG) 填充的聚乙烯化物 (PVDF) 复合材料的电磁 (EM) 特性.
- 评估这些复合材料作为高效率EMI屏蔽材料的潜力.
主要方法:
- 聚合物复合材料是使用PVDF和MMG填充剂制造的,度不同 (210重%).
- 复合材料的电导率和电磁屏蔽性能在X频段频率范围内进行测量.
- 热稳定性和微波吸收能力也被评估.
主要成果:
- 使用10 wt%的MMG填充剂的复合材料表现出最高的电导率 (0.65 S/cm).
- 这种复合材料在3毫米厚度下达到53.04dB的总屏蔽效率.
- 使用MMG填充剂观察到更好的热稳定性和微波吸收.
结论:
- 用磁铁修饰的石墨烯显著提高了PVDF复合材料的EMI屏蔽性能.
- 开发的复合材料是一种高效率的EMI屏蔽材料,适用于电子和航空应用.
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