Highly Conductive and Machine-Washable Textiles for Efficient Electromagnetic Interference Shielding
Highly Conductive and Machine-Washable Textiles for Efficient Electromagnetic Interference Shielding
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DOI：
10.1002/admt.201800503
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发表时间：
2019-02-01
影响因子：
6.8
通讯作者：
Li, Zhong-Ming
中科院分区：
文献类型：
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作者：
Jia, Li-Chuan;Ding, Kun-Qing;Li, Zhong-Ming
目前用于保护人体免受高强度电磁辐射的电磁干扰（EMI）屏蔽纺织品（EMISTs）的效用受到其高成本、低制造效率和在机械变形下的差稳定性的限制。更重要的是，现有的EMIS都不是真正可清洗的，这对于与人体皮肤直接和适形接触的优化保护至关重要。在本文中，通过将银纳米线（AgNW）网络和聚氨酯（PU）保护层集成到商业纺织品上，展示了具有优异EMI屏蔽效能（EMI SE）（63.9 dB@3.0 wt% AgNW）的可机洗EMIST。这里，EMIST具有几个关键优点，包括以下：1）显著的洗涤耐久性（在20次机洗循环后89%的EMI SE保持率），2）突出的长期机械可靠性，在各种变形条件下保持稳定（例如，5000次拉伸循环后EMI SE保持率至少为82%），和3）优异的化学稳定性。该研究提供了一种高质量、经济实惠且完全可穿戴的EMIST，可以保护与电磁或放射源一起工作、居住在附近或经过电磁或放射源的工程师、士兵和平民。
The utility of current electromagnetic interference (EMI) shielding textiles (EMISTs) for protecting the human body from high-intensity electromagnetic radiation is limited by their high cost, low manufacturing efficiency, and poor stability under mechanical deformation. More importantly, no existing EMISTs are truly washable, which is critical for optimized protection with direct and conformal contact with human skin. In this paper, by integrating silver nanowire (AgNW) networks and a polyurethane (PU) protective layer onto a commercial textile, a machine-washable EMIST with excellent EMI shielding effectiveness (EMI SE) (63.9 dB @ 3.0 wt% AgNW) is demonstrated. Here, the EMIST has several key advantages, which include the following: 1) remarkable washing durability (89% EMI SE retention after 20 machine-washing cycles), 2) outstanding long-term mechanical reliability, remaining stable under various deformation conditions (e.g., EMI SE retention of at least 82% after 5000 stretching cycles), and 3) excellent chemical stability. The research provides a high-quality, affordable, and fully wearable EMIST that can protect engineers, soldiers, and civilians who work with, live near, or pass by electromagnetic or radioactive sources.