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Flexible and lightweight melamine sponge/MXene/polyborosiloxane (MSMP) hybrid structure for high-performance electromagnetic interference shielding and anti-impact safe-guarding

材料科学 电磁干扰 电磁屏蔽 纳米复合材料 电磁干扰 三聚氰胺 消散 复合材料 计算机科学 电信 物理 热力学
作者
Min Sang,Yuxuan Wu,Shuai Liu,Linfeng Bai,Sheng Wang,Wanquan Jiang,Xinglong Gong,Shouhu Xuan
出处
期刊:Composites Part B-engineering [Elsevier BV]
卷期号:211: 108669-108669 被引量:77
标识
DOI:10.1016/j.compositesb.2021.108669
摘要

With the development of electronic devices, human beings are always disturbed by the widespread electromagnetic radiation. Meanwhile, the impact kinetic energy from external object will also cause injuries to precision electronic instrument itself and human body. Herein, a lightweight and flexible Melamine Sponge/MXene/Polyborosiloxane (MSMP) hybrid structure with both anti-impacting and electromagnetic shielding performance is proposed by incorporating conductive Ti 3 C 2 T X and polyborosiloxane (PBS) into porous melamine sponge (MS). The nanocomposite shows outstanding energy dissipation ability which can efficaciously degrade the external impact force due to the shear stiffening characteristic. Meanwhile, the nanocomposite presents an excellent electromagnetic interference (EMI) shielding ability with a maximum SE T value of 39 dB. Besides, the MSMP displays obvious adhesion property after being cut due to the viscoelastic property and internal supramolecular network of PBS, thus can repeatedly resist the external damage. Finally, a safety sports protective equipment is developed by integrating the MSMP nanocomposite into the common sportswear . Owing to the good integration of safe-guarding performance and EMI shielding properties, the MSMP nanocomposites show high prospective potential in precision electronic instruments and wearable protective equipment. A flexible MSMP nanocomposite is developed via integrating MXene and polyborosiloxane into the melamine sponge. The nanocomposite shows excellent anti-impacting ability and EMI shielding performance, which provides bi-protection for precision electronic instrument and humans. Finally, a wearable sports protective equipment is developed by inserting MSMP into the common sportswear to safeguard humans.
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