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Investigation of tribological properties of biomass developed porous nano activated carbon composites
Wear ( IF 5.3 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.wear.2020.203523
M. Om Prakash , G. Raghavendra , S. Ojha , Manoj Panchal , Dheeraj Kumar

Abstract Activated carbons are materials with versatile properties but have not been demonstrated as reinforcements in polymer composites. In the current study, the porous nano activated carbon materials are synthesized from waste biomass (Arhar stalks) and utilized as reinforcements in the fabrication of epoxy composites with 1% wt, 2% wt, and 3% wt filler loadings. Porous nano activated carbon epoxy composites were studied for their erosion and abrasive wear properties. Erosion wear rate at different impact angles (30°, 45°, 60° and 90°) and impact velocities (i.e., 101 m/s, 119 m/s and 148 m/s) studied. It is observed that reinforcement of porous nano activated carbon in epoxy composites enhanced the wear resistance of composites by 106% with 1% inclusion of activated carbon. Minimum wear rate was noticed in 2% filler composites which have almost three times more resistance then epoxy polymer. Irrespective of percentage of filler loadings, all the composites exhibited semi ductile erosion wear behavior with maximum wear rate at 45° impact angle. Sliding wear analysis performed at various loads on different abrasive surfaces suggests 2% wt activated carbon epoxy composites have better abrasive wear resistance with least material loss on P800 abrasive surface. Eroded composites surfaces were examined microscopically and the wear mechanisms of the composites are discussed in detail.

中文翻译:

生物质开发的多孔纳米活性炭复合材料的摩擦学性能研究

摘要 活性炭是具有多种特性的材料,但尚未在聚合物复合材料中用作增强材料。在目前的研究中,多孔纳米活性炭材料是由废弃生物质(Arhar 茎)合成的,并用作制造环氧树脂复合材料的增强材料,填充量为 1%、2% 和 3%。研究了多孔纳米活性炭环氧树脂复合材料的侵蚀和磨损性能。研究了不同冲击角度(30°、45°、60° 和 90°)和冲击速度(即 101 m/s、119 m/s 和 148 m/s)下的侵蚀磨损率。据观察,环氧树脂复合材料中多孔纳米活性炭的增强使复合材料的耐磨性提高了 106%,其中含有 1% 的活性炭。在 2% 填料复合材料中观察到最低磨损率,其电阻几乎是环氧聚合物的三倍。不考虑填料负载的百分比,所有复合材料都表现出半延性侵蚀磨损行为,在 45° 冲击角下具有最大磨损率。在不同磨料表面上在各种负载下进行的滑动磨损分析表明,2% wt 活性炭环氧复合材料具有更好的耐磨性,并且在 P800 磨料表面上的材料损失最少。对腐蚀后的复合材料表面进行了显微镜检查,并详细讨论了复合材料的磨损机制。在不同磨料表面上在各种负载下进行的滑动磨损分析表明,2% wt 活性炭环氧复合材料具有更好的耐磨性,并且在 P800 磨料表面上的材料损失最少。对腐蚀后的复合材料表面进行了显微镜检查,并详细讨论了复合材料的磨损机制。在不同磨料表面上在各种负载下进行的滑动磨损分析表明,2% wt 活性炭环氧复合材料具有更好的耐磨性,并且在 P800 磨料表面上的材料损失最少。对腐蚀后的复合材料表面进行了显微镜检查,并详细讨论了复合材料的磨损机制。
更新日期:2021-02-01
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