This study is focused to explore the synergism of dual nanofillers (tungsten carbide (WC) and multiwalled carbon nanotubes (MWCNTs)) in melt extruded PP composites. The synergy of fillers in PP enhanced the elastic modulus, tensile strength, and critical stress intensity factor by 141.8%, 35.4%, and 62.6%, respectively, at an optimum filler content of 1 wt% of WC and 2 wt% of MWCNTs. In the hybrid composites, activation energy to initiate thermal decomposition raised by 78% and wear resistance increased by 93%, and the hybrid composites exhibited enhanced reflectivity in the X band region, which contributed to high electromagnetic shielding effectiveness. The improvement in the properties makes the current hybrid composite system an ideal candidate in application sectors where high modulus, energy absorption, and thermal stability are required.

中文翻译：

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聚丙烯中 WC/MWCNT 纳米杂化物的形态、摩擦学、流变学、热机械性能和 EMI 屏蔽研究

本研究的重点是探索双纳米填料（碳化钨（WC）和多壁碳纳米管（MWCNT））在熔融挤出聚丙烯复合材料中的协同作用。在最佳填料含量为 1 wt% WC 和 2 wt% MWCNT 时，PP 中填料的协同作用使弹性模量、拉伸强度和临界应力强度因子分别提高了 141.8%、35.4% 和 62.6%。在混合复合材料中，引发热分解的活化能提高了78%，耐磨性提高了93%，并且混合复合材料在X波段区域表现出增强的反射率，这有助于提高电磁屏蔽效率。性能的改进使得当前的混合复合材料系统成为需要高模量、能量吸收和热稳定性的应用领域的理想候选者。