| Autor: |
Wang, Haihang, Zhang, Lixiu, Liu, Gaohan, Hu, Jie, Zhao, Dong, Wei, Heng, Gong, Xuezhong, Mao, Sui, Huang, Linjun, Wang, Yao, Li, Zengkun, Strizhak, Peter, Danilov, Michail, Rusetskyi, Ihor, Tang, Jianguo |
| Zdroj: |
Journal of Materials Research and Technology; September-October 2023, Vol. 26 Issue: 1 p6275-6286, 12p |
| Abstrakt: |
Multi-walled carbon nanotubes (MWCNTs) are widely recognized for their exceptional mechanical properties and potential to reinforce composite materials. However, the requirement for high MWCNT concentration remains a challenge in achieving effective reinforcement. In this study, using unzipped multi-walled carbon nanotubes (uMWCNTs) and transition metal filler as a means to significantly enhance the mechanical properties of polyamide 66 (PA66) and incorporating 0.2% w/w of uMWCNTs-Mn as filler allowed us to increase PA66's tensile strength by over 74% and its Young's modulus by over 100%. The structural and functional integrity of uMWCNTs-Mn and PA66 matrix were investigated in detail. This work reveals that the enhancement of mechanical properties is mainly due to the interfacial interaction between uMWCNTs-Mn sheets and the PA66 matrix, the coupling effect of manganese ions, and increases the crystallinity and reduces the size of microcrystals. This work's findings provide a novel approach to the preparation of high-performance composites with low concentrations of carbon nanostructures, which holds significant implications for the development of advanced materials. |
| Databáze: |
Supplemental Index |
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