The polymer composite material’s thermomechanical properties with fiber as reinforcement material have been widely studied in the last few decades. However, these fiber-based polymer composites exhibit problems such as fiber orientation, delamination, fiber defect along the length and bonding are the matter of serious concern in order to improve the thermomechanical properties and obtain isotropic material behavior. In the present investigation filler-based composite material is developed using natural hemp and high thermal conductive silver nanoparticles (SNP) and combination of dual fillers in neat epoxy polymer to investigate the synergetic influence. Among various organic natural fillers hemp filler depicts good crystallinity characteristics, so selected as a biocompatible filler along with SNP conductive filler. For enhancing their thermal conductivity and mechanical properties, hybridization of hemp filler along with silver nanoparticles are conducted. The composites samples are prepared with three different combinations such as sole SNP, sole hemp and hybrid (SNP and hemp) are prepared to understand their solo and hybrid combination. From results it is examined that, chemical treated hemp filler has to maximized its relative properties and showed, 40% weight % of silver nanoparticles composites have highest thermal conductivity 1.00 W/mK followed with hemp filler 0.55 W/mK and hybrid 0.76 W/mK composites at 7.5% of weight fraction and 47.5% of weight fraction respectively. The highest tensile strength is obtained for SNP composite 32.03 MPa and highest young’s modulus is obtained for hybrid composites. Dynamic mechanical analysis is conducted to find their respective storage modulus and glass transition temperature and that, the recorded maximum for SNP composites with 3.23 GPa and 90°C respectively. Scanning electron microscopy examinations clearly illustrated that formation of thermal conductivity chain is significant with nano and micro fillers incorporation.

在过去的几十年中，以纤维为增强材料的高分子复合材料的热机械性能得到了广泛的研究。然而，这些纤维基聚合物复合材料表现出诸如纤维取向，脱层，沿长度方向的纤维缺陷和粘结性之类的问题，这些问题是为了改善热机械性能并获得各向同性材料性能而引起的。在本研究中，使用天然大麻和高导热银纳米颗粒（SNP）以及在纯环氧聚合物中双重填充剂的组合来开发基于填充剂的复合材料，以研究协同作用。在各种有机天然填料中，大麻填料表现出良好的结晶性，因此与SNP导电填料一起被选作生物相容性填料。为了增强它们的导热性和机械性能，进行了大麻填料与银纳米颗粒的杂交。用三种不同的组合制备复合材料样品，例如单独的SNP，单独的大麻和杂种（SNP和大麻），以了解其单独和杂种的组合。从结果可以看出，化学处理的大麻填料必须使其相对性能最大化，并显示40％（重量）的银纳米颗粒复合材料具有最高的1.00 W / mK的导热系数，其次是大麻填料0.55 W / mK和杂化的0.76 W / mK复合材料的重量分数分别为7.5％和47.5％。SNP复合材料的最高拉伸强度为32.03 MPa，杂化复合材料的杨氏模量最高。进行动态力学分析以找到它们各自的储能模量和玻璃化转变温度，以及分别记录的具有3.23 GPa和90°C的SNP复合材料的最大值。扫描电子显微镜检查清楚地表明，纳米和微填料的结合，热导链的形成是重要的。