碳纳米管抗自由基效应对复合材料力学性能的影响

复合材料科学与工程 ›› 2014, Vol. 0 ›› Issue (5): 32-36.

碳纳米管抗自由基效应对复合材料力学性能的影响

陈红燕^1,2*, 黄华波³, 王继辉³

1.长安大学材料科学与工程学院,西安710064;
2.长安大学杂志社,西安710064;
3.武汉理工大学材料学院,武汉430070

收稿日期:2013-09-17 出版日期:2014-05-28 发布日期:2021-09-14
作者简介:陈红燕(1979-),女,博士,讲师,主要从事聚合物基复合材料的研究,chyrain_2000@163.com。
基金资助:
武汉理工大学自主创新基金资助项目(2010-Ⅳ-038)

INFLUENCE OF THE ANTI-RADICAL EFFECT OF CARBON NANOTUBES ON THE MECHANICAL PROPERTIES OF COMPOSITES

CHEN Hong-yan^1,2*, HUANG Hua-bo³, WANG Ji-hui³

1. School of Materials Science and Engineering, Chang’an University, Xi’an 710064, China;
2. Magazines Company, Chang'an University, Xi’an 710064, China;
3. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Received:2013-09-17 Online:2014-05-28 Published:2021-09-14

摘要/Abstract

摘要： 为了改善玻璃纤维(GF)/乙烯基酯树脂(VER)复合材料的力学性能,将碳纳米管(CNTs)加入其中制得了碳纳米管/玻璃纤维/乙烯基酯树脂复合材料。然而,分别加入0.4wt%、0.8wt%、1.2wt%碳纳米管后,主要由基体贡献的层间剪切强度和纵向压缩强度分别从52.32MPa和258.34MPa下降到45.14MPa、50.11MPa、42.14MPa和240.99MPa、257.87MPa、235.27MPa,表明了碳纳米管的抗自由基效应对乙烯基酯树脂固化反应的抑制作用。通过添加另一种较高温分解的引发剂BPO进行补偿,其层间剪切强度和纵向压缩强度又分别提升到63.25MPa、70.35MPa、60.57MPa和299.12MPa、318.54MPa、280.11MPa。动力机械热分析(DMA)也得到一致的结果,进一步证实了碳纳米管的抗自由基效应对复合材料力学性能的负面影响。

关键词: 碳纳米管, 抗自由基效应, 复合材料, 力学性能

Abstract: Carbon nanotubes (CNTs) were incorporated into glass fiber (GF)/vinyl ester resins (VER) composites to improve their mechanical properties. However, when 0.4, 0.8, 1.2wt% CNTs were added into the composites, the interlaminar shear and longitudinal compressive strengths which were belong to the matrix-dominanted properties decreased from 52.32MPa and 258.34MPa to 45.14, 50.11, 42.14MPa and 240.99, 257.87, 235.27MPa, respectively. This indicates that the CNTs possessed an against effect to free radicals, resulting in the inhibition of the radical curing reaction of vinyl ester resin. A higher temperature initiator BPO was used to eliminate this negative effects from CNTs. Finally, the interlaminar shear and longitudinal compressive strengths of the CNTs/GF/VER composites increased to 63.25, 70.35, 60.57MPa and 299.12, 318.54, 280.11MPa, respectively. Meanwhile, the Dynamic Mechanical Analyzer (DMA) gave a consistent result, which confirmed the against effect to free radicals from CNTs.

Key words: CNTs, against effect to free radicals, composites, mechanical properties

中图分类号:

TB332

陈红燕, 黄华波, 王继辉. 碳纳米管抗自由基效应对复合材料力学性能的影响[J]. 复合材料科学与工程, 2014, 0(5): 32-36.

CHEN Hong-yan, HUANG Hua-bo, WANG Ji-hui. INFLUENCE OF THE ANTI-RADICAL EFFECT OF CARBON NANOTUBES ON THE MECHANICAL PROPERTIES OF COMPOSITES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(5): 32-36.

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