碳纳米管/高密度聚乙烯复合材料的磨损行为
WEAR BEHAVIOR OF CARBON NANOTUBE/HIGH DENSITY POLYETHYLENE COMPOSITES.
作者信息
Johnson Brian B, Santare Michael H, Novotny John E, Advani Suresh G
机构信息
Anholt Technologies, 440 Church Road, Avondale, PA 19311.
出版信息
Mech Mater. 2009 Oct 1;41(10):1108-1115. doi: 10.1016/j.mechmat.2009.04.003.
Carbon Nanotube/High Density Polyethylene (CNT/HDPE) composites were manufactured and tested to determine their wear behavior. The nanocomposites were made from untreated multi-walled carbon nanotubes and HDPE pellets. Thin films of the precursor materials were created with varying weight percentages of nanotubes (1%, 3%, and 5%), through a process of mixing and extruding. The precursor composites were then molded and machined to create test specimens for mechanical and wear tests. These included small punch testing to compare stiffness, maximum load and work-to-failure and block-on-ring testing to determine wear behavior. Each of the tests was conducted for the different weight percentages of composite as well as pure HDPE as the baseline. The measured mechanical properties and wear resistance of the composite materials increased with increasing nanotube content in the range studied.
制备并测试了碳纳米管/高密度聚乙烯（CNT/HDPE）复合材料，以确定其磨损行为。这些纳米复合材料由未处理的多壁碳纳米管和HDPE颗粒制成。通过混合和挤出工艺，制备了具有不同纳米管重量百分比（1%、3%和5%）的前驱体材料薄膜。然后将前驱体复合材料模塑并加工，以制造用于机械和磨损测试的试样。这些测试包括用于比较刚度、最大载荷和破坏功的小冲孔测试，以及用于确定磨损行为的环块磨损测试。对不同重量百分比的复合材料以及作为基线的纯HDPE进行了每项测试。在所研究的范围内，复合材料的测量力学性能和耐磨性随纳米管含量的增加而提高。
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