为了改善微波吸收/屏蔽特征的等离子体工程生物质衍生材料的生物质
Elnaz Selseleh-Zakerin1,2,3, Ali Mirkhan2,3, Mojtaba Shafiee4
1Department of Chemical Engineering, Energy Institute of Higher Education, Saveh 39177-67746, Iran.
Langmuir : the ACS journal of surfaces and colloids
|May 28, 2024
概括
研究人员从庞帕斯生物质中开发出一种新的微波吸收材料. 等离子处理增强了其电磁屏蔽,达到高达99%的效率,为电磁污染提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 越来越多的电磁污染需要先进的屏蔽材料.
- 生物质衍生材料为电磁波吸收提供可持续和可调节的特性.
- 等离子处理是修改材料特性的一个关键技术.
研究的目的:
- 从潘帕斯生物质开发一种高效的微波吸收材料.
- 研究不同等离子体环境 (H2,CO2,Ar) 对微波吸收特性的影响.
- 评估聚烯作为生物质吸收器矩阵的潜力.
主要方法:
- 潘帕斯的生物质被转化为基于碳的微纤维.
- 微纤维使用H2,CO2和Ar等离子体进行处理,并进行热解.
- 聚烯被用作微波吸收矩阵.
- 用拉曼,XRD,FESEM和DRS来表征材料;用矢量网络分析仪测量微波吸收.
主要成果:
- 用聚烯对H2/Ar等离子体进行处理,最大反射损失 (RL) 为-90.65dB,有效带宽为4.24GHz.
- 二氧化碳等离子处理导致最大RL为-97.99dB,有效带宽为7.74GHz.
- Ar 血治疗提供了整个X和Ku波段的吸收,厚度最小.
- 总的屏蔽效率达到了大约99%.
结论:
- 经过等离子处理的庞帕斯生物质,特别是与聚乙烯相结合时,表现出优异的微波吸收能力.
- 该研究强调了可持续生物质资源在制造高性能电磁屏蔽材料方面的潜力.
- 定制等离子体环境允许精确控制材料特性和吸收频率.
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