碳织物/MWCNT/环氧复合材料的摩擦学和力学性能

IF 1.5 Q3 ENGINEERING, MECHANICAL Advances in Tribology Pub Date : 2018-07-05 DOI:10.1155/2018/1508145
B. Shivamurthy, K. Murthy, S. Anandhan
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引用次数: 13

摘要

采用热压成型技术制备了低温处理多层碳织物/氧化多壁碳纳米管/环氧树脂(CCF/O-MWCNT/E)复合材料和未处理碳织物/环氧树脂(CF/E)复合材料。按照ASTM标准测试了复合材料的密度和力学性能,如拉伸性能、弯曲性能、层间剪切强度和显微硬度。利用计算机接口盘销试验装置,研究了不同载荷和滑动速度下盘销在室温下的磨损和摩擦系数行为。利用扫描电镜对磨损试验复合材料试样的磨损表面形貌进行了研究。结果表明,在环氧基体中添加O-MWCNT和对碳纤维织物进行低温处理的协同作用,提高了碳纤维织物的耐磨性和力学性能。此外,氧化多壁碳纳米管/环氧磨损碎片形成的薄润滑膜降低了滑动摩擦系数和磨损率。
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Tribology and Mechanical Properties of Carbon Fabric/MWCNT/Epoxy Composites
Cryogenic treated multilayered carbon fabric/oxidized multiwall carbon nanotube/epoxy (CCF/O-MWCNT/E) composite and untreated carbon fabric/epoxy (CF/E) composite were prepared by hot compression molding technique. The density and mechanical properties such as tensile properties, flexural properties, interlaminar shear strength, and microhardness of the composites were investigated as per ASTM standards. The wear and coefficient of friction behavior were investigated using computer interfaced pin-on-disc test rig at room temperature for varied load and sliding speed. The morphology of worn surfaces of the wear test composite specimens were studied by scanning electron microscope. It is found that the synergetic effect of addition of O-MWCNT to epoxy matrix and cryogenic treatment of carbon fabric improved the wear resistance and mechanical properties. Also, a thin lubricating film developed by the oxidized multiwall carbon nanotube/epoxy wear debris reduces the coefficient of sliding friction and wear rate.
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来源期刊
Advances in Tribology
Advances in Tribology ENGINEERING, MECHANICAL-
CiteScore
5.00
自引率
0.00%
发文量
1
审稿时长
13 weeks
期刊最新文献
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