Du Yingkuan, Chen Weiqiang, Li Suiyi, Wang Yang, Li Xiang, Liang Yunyi, Cui Yilong, Li Jianzhang, Xia Changlei
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China.
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China.
Int J Biol Macromol. 2025 May;307(Pt 3):142054. doi: 10.1016/j.ijbiomac.2025.142054. Epub 2025 Mar 14.
The widespread use of electronic devices significantly facilitates daily human life, but also leads to increasingly serious electromagnetic pollution. Therefore, it is necessary to develop eco-friendly electromagnetic interference (EMI) shielding materials with excellent overall performance. Here, we prepare a waste paper/biocarbon (WP/BC) composite with a distinct densely self-bonded core-shell structure through the partial dissolution co-mixing process. Benefiting from this structure, the WP/BC composite exhibits metal-grade EMI shielding performance of EMI shielding effectiveness (EMI SE) up to 69.59 dB and superior flame retardancy (limiting oxygen index of 33.39 %). In addition, the WP/BC composite also shows favorable thermal management performance and low environmental impacts. This lightweight and eco-friendly WP/BC composite with excellent overall performance possesses significant potential for applications in commercial, industrial, and military sectors.
电子设备的广泛使用极大地便利了人们的日常生活，但也导致了日益严重的电磁污染。因此，开发具有优异综合性能的环保型电磁干扰（EMI）屏蔽材料很有必要。在此，我们通过部分溶解共混工艺制备了一种具有独特致密自粘结核壳结构的废纸/生物碳（WP/BC）复合材料。得益于这种结构，WP/BC复合材料展现出高达69.59 dB的金属级电磁干扰屏蔽效能（EMI SE）以及优异的阻燃性（极限氧指数为33.39%）。此外，WP/BC复合材料还表现出良好的热管理性能和较低的环境影响。这种具有优异综合性能的轻质环保WP/BC复合材料在商业、工业和军事领域具有巨大的应用潜力。
