多层复合膜具有增强的电磁干扰屏蔽和基于竹纤维素纳米纤维的热管理特性
Lujie Wang1, Dingfeng Xu2, Jinping Zhou1
1Hubei Engineering Center of Natural Polymers-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
Carbohydrate polymers
|February 20, 2025
概括
由竹纤维素纳米纤维和银纳米颗粒制成的新型柔性复合膜提供了出色的电磁干扰屏蔽和热管理. 这些多功能材料有效地阻断电磁波,并提供双重加热功能.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 聚合物科学 聚合物科学
背景情况:
- 灵活的轻质材料对于先进的电磁干扰 (EMI) 屏蔽至关重要.
- 导电聚合物复合材料在EMI屏蔽应用中越来越受欢迎.
- 开发具有综合性质的多功能材料是关键的研究趋势.
研究的目的:
- 制造具有增强EMI屏蔽和热管理性能的多层复合膜.
- 研究竹纤维素纳米纤维 (BCNF) /银纳米粒子 (AgNPs) 与减少氧化石墨烯 (rGO) /多壁碳纳米管 (MWCNTs) 的集成.
- 探索开发的复合膜的抗菌和双加热能力.
主要方法:
- 使用真空交替过来制备多层薄膜.
- 竹纤维素纳米纤维 (BCNF) 因其固有的可降解性而被利用,以结合银纳米粒子 (AgNPs).
- 减少的石墨烯氧化物 (rGO) 和多壁碳纳米管 (MWCNTs) 被集中到导电层中.
主要成果:
- 复合膜在X频段实现了37.59dB的EMI屏蔽效率 (EMI SE).
- 记录了出色的SE/d比为729 dB mm-1 ,减弱了99.98%的电磁波.
- 这些片表现出卓越的朱尔加热性能,在10秒内达到和温度,并表现出光热转换加热.
结论:
- 开发了一种简单,环保的方法来创建多功能复合膜.
- 这些薄膜为需要EMI屏蔽和热管理的应用提供了巨大的潜力.
- 这项研究与环境保护和可持续发展目标保持一致.
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