The effect of thickness on the multiwalled carbon nanotubes performance in glass/epoxy composite laminates under dynamic loading,Polymer Composites

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The effect of thickness on the multiwalled carbon nanotubes performance in glass/epoxy composite laminates under dynamic loading
Polymer Composites ( IF 4.8 ) Pub Date : 2021-08-14 , DOI: 10.1002/pc.26260
Mohammad Emdadi Derabi ₁ , Milad Sangsefidi ₁ , Omid Rahmani ₂

Affiliation

The aim of this research is to investigate the thickness influence on the efficiency of multiwalled carbon nanotubes (MWCNTs) in glass/epoxy composite laminates under the high-velocity impact. Combining 0.25 wt% of MWCNTs in the 4-layer and 8-layer specimens and 0.1 wt% of MWCNTs in the 16-layer specimen led to the maximum rise in the energy absorption and specific perforation energy compared with the unreinforced laminates. The significant growth in energy absorption in the 4-layer, 8-layer, and 16-layer specimens was 5.8, 8.3, and 14.4 J, respectively. The number of agglomerations (dislocations) in the matrix was consequently increased as a function of thickness, which led to the better performance of MWCNTs with lower weight percentages in the composite laminates containing more layers. The scanning electron microscope was used to observe the dispersion and agglomeration of MWCNTs in the resin epoxy, and there was also an improvement in the fiber–resin bonding.

中文翻译：

动态载荷下厚度对玻璃/环氧复合材料层压板中多壁碳纳米管性能的影响

本研究的目的是研究在高速冲击下，厚度对玻璃/环氧树脂复合层压板中多壁碳纳米管 (MWCNT) 效率的影响。与未增强的层压板相比，将 4 层和 8 层样品中 0.25 wt% 的 MWCNTs 和 16 层样品中 0.1 wt% 的 MWCNTs 组合导致能量吸收和比穿孔能的最大增加。4 层、8 层和 16 层试样的能量吸收显着增长分别为 5.8、8.3 和 14.4 J。因此，基体中的团聚（位错）数量随着厚度的增加而增加，这导致 MWCNT 在包含更多层的复合层压板中具有更好的性能，并且重量百分比较低。

更新日期：2021-08-14

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