Influence of Seaweed Filler on Dry Sliding Wear of Carbon Fiber Reinforced Epoxy Composites

ABSTRACT

During the last few decades, natural fibers are used as reinforcement in polymer composites and they have been continuously used in the field of automotive, aircraft, and biomedical industries. In this work, carbon fiber polymer composites (CFPC) with seaweed fillers were fabricated using the hand-layup method. Sliding wear experiments were conducted under the dry condition on the fabricated samples. The effect of operating parameters like sliding speed (m/s), load (kg), sliding distance (m), and seaweed filler loading on specific wear rate (Ws) was investigated. Experimental results showed exceptional wear resistance of carbon fiber epoxy composite containing seaweed filler. Especially, 10 wt. % of seaweed fillers offered lower wear rate as compared to conventional carbon composite. In this investigation, a minimum wear rate of 2.4 µm was obtained for the sliding velocity of 1.5 m/sec, applied load of 2 N, and sliding distance of 1000 m in 10 wt. % of seaweed-filled composites. It was noted that resistance to wear in seaweed-filled composite was mainly due to fiber fracture mechanism and microcracking. The increasing trend of impact strength has been well perceived from the dipping trend in specific wear rate on seaweed dispersion in the CF10SW epoxy composite.

摘要

在过去的几十年里，天然纤维被用作聚合物复合材料的增强材料，并在汽车、飞机和生物医学等领域得到了持续的应用. 本文采用手糊法，制备了以海藻为填料的碳纤维聚合物复合材料（CFPC）. 在干燥条件下对制备的试样进行了滑动磨损实验. 研究了滑动速度（m/s）、载荷（kg）、滑动距离（m）和海藻填料负载等操作参数对比磨损率（Ws）的影响. 实验结果表明，含海藻填料的碳纤维环氧复合材料具有优异的耐磨性。特别是10%的海藻填料比传统的碳复合材料具有更低的磨损率. 在本研究中，当滑动速度为1.5 m/s，施加荷载为2 N，滑动距离为1000 m时，海藻填充复合材料的最小磨损率为2.4µm. 结果表明，海藻填充复合材料的耐磨性主要是由纤维断裂机理和微裂纹引起的. 从CF10SW环氧树脂复合材料中海藻分散体的比磨损率的下降趋势可以看出冲击强度的增加趋势.

KEYWORDS:

• Polymer
• carbon fiber composites
• seaweed filler
• wear
• pin-on-disc

关键词:

• 聚合物
• 碳纤维复合材料
• 海藻填料
• 磨损
• 销盘