可塑性,可打印,可粘合,具有高导电性的MXene/液体金属塑料,可改善湿透性
Haojie Jiang1, Bin Yuan1, Hongtao Guo1
1Shanghai Key Lab. of D&A for Metal Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, China.
Nature communications
|July 20, 2024
概括
一种新的溶剂辅助分散方法将MXene均集成到液体金属 (LM) 中,增强电磁干扰 (EMI) 屏蔽. 这种技术可以为先进的软件设备创建可形,可打印的涂层.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 将功能填充剂集成到液体金属 (LM) 中,改变了微尺度成型的风学.
- 在LM中实现非化学改性低维材料的稳定,均分散是具有挑战性的.
研究的目的:
- 开发一种用于在LM中均分散低维材料的新方法.
- 为了提高基于LM的材料的电磁干扰 (EMI) 屏蔽性能.
主要方法:
- 使用溶剂辅助分散 (SAD) 方法,利用在挥发性溶剂中的LM的碎片化和再整合.
- 将MXene集成到LM中,并将所得到的MXene/LM (MLM) 涂层与通过干粉混合 (DPM) 制备的材料进行比较.
主要成果:
- 与DPM相比,SAD方法在LM中实现了统一的MXene集成,具有优越的内部连接性.
- 该MLM涂层表现出高EMI屏蔽 (105dB在20μm),比DPM制备的涂层大1.6倍.
- 由于MLM的风学性质,可以使其具有可性,直接打印,并适应各种结构.
结论:
- 该SAD方法提供了一个方便的方法,以低尺寸材料组装LM.
- 这种技术有助于开发具有增强EMI屏蔽的多功能软设备.
- 该研究强调了SAD在制造先进,可加工的LM基复合材料方面的潜力.
相关概念视频
02:32Bonding in Metals
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
02:37Metallic Solids
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...