湿热行为对碳纳米纸复合材料的性能影响
Effects of Hygrothermal Behavior on Properties of Carbon Nanotube Buckypaper Composites
DOI: 10.12677/MS.2019.94052, PDF,    国家自然科学基金支持
作者: 霍庆生, 金嘉琦：沈阳工业大学机械工程学院，辽宁 沈阳
关键词: 湿热；复合材料；力学性能；碳纳米管；Hygrothermal； Composite Materials； Mechanical Properties； Carbon Nanotubes
摘要: 复合材料由于湿热服役环境存在的普遍性以及吸湿对树脂基复合材料力学性能影响的严重性，一直受到广泛的关注。本文采用加速老化法，对碳纳米纸复合材料进行了湿热老化行为的研究。研究表明：复合材料吸湿率的变化在湿热处理初期符合Fick第二定律。随着吸湿率的增加，复合材料层间剪切强度和抗弯强度均有降低的趋势。干态时单面碳纳米纸复合材料层间剪切强度和抗弯强度均明显大于无碳纳米纸复合材料，随着吸湿率增大，差值逐渐减小。
Abstract: Due to the universality of the humid-thermal service environment and the seriousness of the effect of moisture absorption on the mechanical properties of resin matrix composites, composites have attracted wide attention. In this paper, the hydrothermal aging behavior of carbon nanotube buckypaper composites was studied by accelerated aging method. The results show that the change of hygroscopicity of composites conforms to Fick’s second law at the initial stage of hydrothermal treatment. With the increase of hygroscopicity, the interlaminar shear strength and flexural strength of composites decrease. In dry state, the interlaminar shear strength and flexural strength of unilateral carbon nanotube buckypaper composites are significantly higher than those of composites without carbon nanotube buckypaper, and the difference decreases with the increase of moisture absorption.
文章引用：霍庆生, 金嘉琦. 湿热行为对碳纳米纸复合材料的性能影响[J]. 材料科学, 2019, 9(4): 401-410. https://doi.org/10.12677/MS.2019.94052

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