ABSTRACT

This research work focuses on the wear characteristics of hybrid composites prepared using Sisal fiber (SF) /Pineapple fiber (PF) and Pineapple fly ash (PA) in various wt.%. Linear reciprocating tribometer was used for determining the Specific Wear Rate (SWR) and Coefficient of Friction (CoF) of the hybrid composites. The XRF results of PA filler showed the existence of silica (64.43%) and aluminum oxide (10.03%) in a major percentage. The hybrid fiber combination of 30-50 wt.% showed improvement in Tensile Strength (TS), Flexural Strength (FS) and Impact Strength (IS) with the filler mixing up to 5 wt.%. The Taguchi optimization (SN graph) observed the combination with PA addition of 5 wt.%, hybrid fiber addition of 30 wt.%, sliding distance and load of 1500 m, 10 N having lower SWR. Similarly for lower CoF, fly ash of 1 wt.%, fiber of 30 wt.%, sliding distance and load of 500 m and 5 N, respectively, with high SN ratio is the best combination. SEM results showed a decrease in filler content, higher load conditions, higher reinforcement causing more surface deformations in the composites.

摘要

本研究工作的重点是使用不同重量百分比的剑麻纤维 (SF)/菠萝纤维 (PF) 和菠萝粉煤灰 (PA) 制备的混合复合材料的磨损特性。线性往复摩擦计用于确定混合复合材料的比磨损率 (SWR) 和摩擦系数 (CoF)。PA填料的XRF结果显示二氧化硅（64.43%）和氧化铝（10.03%）占主要比例。30-50 wt.% 的混合纤维组合显示出拉伸强度 (TS)、弯曲强度 (FS) 和冲击强度 (IS) 的改善，填料混合量高达 5 wt.%。田口优化（SN 图）观察到 PA 添加 5 wt.%、混合纤维添加 30 wt.%、滑动距离和负载 1500 m、10 N 具有较低 SWR 的组合。类似地，对于较低的 CoF，1 wt.% 的飞灰，30 wt.% 的纤维，滑动距离和载荷分别为 500 m 和 5 N，高信噪比是最佳组合。SEM 结果表明，填料含量降低、负载条件增加、增强强度增加导致复合材料表面变形增加。