Abstract Conductive wood plastic composites (WPCs) take advantages of high mechanical strength, stability, low density and conductivity, are promising candidates as functional electromagnetic shielding materials. Thus, conductive SS-PE-CBx composites were prepared using agricultural sorghum straw residues (SS), high-density polyethylene (HDPE) and carbon black (CB) nanoparticles. With the help of rigid and conductive CB nanoparticles, SS-PE-CBx composites displayed enhanced mechanical properties, thermal stability and conductivity (0.4 S/cm), showed high EMI shielding capabilities (a maximum total EMI value of ~ 22.5 dB), which were favorable for practical applications. This work may pave a new and green way to recycle agriculture wastes into functional EMI shielding materials.

中文翻译：

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用于高性能电磁干扰屏蔽的炭黑增强木塑复合材料

摘要 导电木塑复合材料（WPCs）具有机械强度高、稳定性好、密度低、导电性好等优点，是一种很有前景的功能性电磁屏蔽材料。因此，使用农用高粱秸秆 (SS)、高密度聚乙烯 (HDPE) 和炭黑 (CB) 纳米颗粒制备了导电 SS-PE-CBx 复合材料。在刚性和导电 CB 纳米粒子的帮助下，SS-PE-CBx 复合材料显示出增强的机械性能、热稳定性和导电性 (0.4 S/cm)，显示出高 EMI 屏蔽能力（最大总 EMI 值~22.5 dB），这有利于实际应用。这项工作可能为将农业废物回收成功能性 EMI 屏蔽材料铺平了一条新的绿色途径。