Effect of Nanostructure and Crosslinks on Impact Resistance of Carbon Nanotube Films Under Micro-Ballistic Impact
文献类型：期刊论文
| 作者 | Du, Zechen5,6; Xiao KL(肖凯璐)4 ; Bai, Yunxiang3,5; Huang CG(黄晨光)2,5; Wu XQ(吴先前)1,5,6; Huang CG(黄晨光); Wu XQ(吴先前); Xiao KL(肖凯璐)
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| 刊名 | SMALL
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| 出版日期 | 2024-10-26 |
| 页码 | 13 |
| 关键词 | CNT films crosslinks energy dissipation micro-ballistic impact nanostructure design |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.202407404 |
| 通讯作者 | Du, Zechen(duzc@imech.ac.cn) ; Wu, Xianqian(wuxianqian@imech.ac.cn) |
| 英文摘要 | Carbon nanotube (CNT) films show great promise as an advanced bulletproof materials due to their excellent energy dissipation ability under impact loadings. However, it is challenging to determine the optimized architecture structure of CNTs to enhance the impact resistance of CNT films. In this study, the impact behavior of CNT films with various architecture structures were studied by micro-ballistic impact experiments and coarse-grained molecular dynamics (CGMD) simulations. The micro-ballistic impact experimental results showed that the cross-ply laminated (CPL) structure enhances significantly the specific energy absorption (SEA) of CNT films compared to that with disordered structure due to the synergistic interactions between covalent bonds in CNT chains. On this basis, four CPL-CNT (CCNT) films with the same areal density (rho 2D) but different single-layer areal density (rho s2D${\rho }_{s}<^>{2D}$) and one disordered CNT (DCNT) film with the same rho 2D as the CCNT films were constructed in CGMD models. The simulation results showed that the SEAs of all the four CCNT films are higher than DCNT film, which is consistent with experiments. In addition, the SEAs of CCNT films increase with decreasing rho s2D${\rho }_{s}<^>{2D}$. However, too small rho s2D${\rho }_{s}<^>{2D}$ can lead to local plugging failure of the CNT film and therefore decrease SEA of the CNT film. Moreover, adding crosslinks could further increase the SEAs of both the DCNT and the CCNT films due to the strengthened interactions of adjacent CNTs. The crosslinked CCNT films with appropriate rho 2D is still much higher than the crosslinked DCNT films. Furthermore, it was further found that when the strength of the crosslinks aligns with that of the CNT beads, the CNT film achieves preeminent impact resistance. This study provides a pathway for enhancing the impact resistance of CNT films by optimizing the microstructure and introducing crosslinks between CNTs. |
| 分类号 | 一类 |
| WOS关键词 | MECHANICAL-BEHAVIOR ; ENERGY-DISSIPATION ; FIBERS ; STRENGTH ; STRATEGY |
| 资助项目 | National Natural Science Foundation of China ; National Key R&D Program of China[2021YFA0719200] ; CAS Project for Young Scientists in Basic Research[YSBR-096] ; [12272391] ; [12232020] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001341195900001 |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China ; CAS Project for Young Scientists in Basic Research |
| 其他责任者 | Du, Zechen ; Wu, Xianqian |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/97145]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Wu XQ(吴先前) |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China; 3.Chinese Acad Sci, CAS Key Lab Nanosyst & Hierarch Fabricat, CAS Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China; 4.Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX 77840 USA; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 6.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Du, Zechen,Xiao KL,Bai, Yunxiang,et al. Effect of Nanostructure and Crosslinks on Impact Resistance of Carbon Nanotube Films Under Micro-Ballistic Impact[J]. SMALL,2024:13. |
| APA | Du, Zechen.,肖凯璐.,Bai, Yunxiang.,黄晨光.,吴先前.,...&Xiao KL.(2024).Effect of Nanostructure and Crosslinks on Impact Resistance of Carbon Nanotube Films Under Micro-Ballistic Impact.SMALL,13. |
| MLA | Du, Zechen,et al."Effect of Nanostructure and Crosslinks on Impact Resistance of Carbon Nanotube Films Under Micro-Ballistic Impact".SMALL (2024):13. |
入库方式： OAI收割
来源：力学研究所
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