高取向密实化碳化钛复合薄膜的制备及性能研究

批准号:
52003011
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
万思杰
依托单位:
学科分类:
高分子共混与复合材料
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
万思杰
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中文摘要
作为一种新兴的二维过渡金属碳化物(MXene)纳米片,碳化钛具有优异的力学和电学性能,且易加工,在柔性电子器件和航空航天等领域具有广泛的应用前景。因此,将碳化钛纳米片组装成宏观高性能纳米复合材料至关重要。然而,目前文献报道的传统组装方法,通常存在碳化钛纳米片取向较差,堆积不密实,界面作用弱等缺点,这严重制约了碳化钛薄膜的力学和电学性能,从而极大限制了其实际应用。基于此,本项目拟通过双轴拉伸和界面交联相结合的协同取向策略,同时提升碳化钛纳米片的取向度、密实度和层间界面作用,从而制备高取向密实化碳化钛复合薄膜,大幅提高其力学和电学性能;其次,深入研究双轴拉伸和界面交联的协同取向机制,并揭示不同取向碳化钛薄膜的结构和性能之间的构效关系;最后,采用该新型取向策略,同时辅以功能性界面设计,构筑高性能多功能一体化碳化钛复合薄膜,为其他二维MXene纳米片的高性能组装提供新的研究思路和实验支持。
英文摘要
As a kind of emerging two-dimensional (2D) transition metal carbide (MXene) nanosheets, titanium carbide (Ti3C2Tx) has great potential for use in flexible electronics and aerospace due to its excellent mechanical and electrical properties and good processibility. Thus, it is highly important to assemble the Ti3C2Tx nanosheets into macroscopic high-performance nanocomposites. However, the traditional assembly methods reported to date usually cause poor alignment of Ti3C2Tx nanosheets, incompact stacking, and weak interface interaction, which greatly decrease the mechanical and electrical properties of Ti3C2Tx-based nanocomposite films and thereby limit their practical applications. To overcome these shortcomings, this project proposes a synergistic orientation strategy to simultaneously improve the alignment and compactness of Ti3C2Tx nanosheets and interface interactions by interfacial crosslinking under biaxial stretching, resulting in highly aligned and compact Ti3C2Tx-based nanocomposite films with improved mechanical and electrical properties. Additionally, the mechanism of the synergistic orientation by interfacial crosslinking under biaxial stretching will be investigated. Moreover, the relationship between the structure and performance of Ti3C2Tx-based nanocomposite films with different alignment and compactness will be revealed. Furthermore, various high-performance multifunctional Ti3C2Tx-based nanocomposite films will be fabricated using the novel orientation strategy combined with functional interface designs. We strongly believe this research will provide new inspirations and great experimental supports for the assembly of other 2D MXene nanosheets into high-performance nanocomposites.
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DOI:10.1002/adfm.202309191
发表时间:2023-09
期刊:Advanced Functional Materials
影响因子:19
作者:Ying Chen;Wenwen Liu;S. Wan;Huagao Wang;Yumin Chen;H. Zhao;Chenguang Zhang;Kaihui Liu;Tuanfeng Zhou;Lei Jiang;Qunfeng Cheng;Xuliang Deng
通讯作者:Ying Chen;Wenwen Liu;S. Wan;Huagao Wang;Yumin Chen;H. Zhao;Chenguang Zhang;Kaihui Liu;Tuanfeng Zhou;Lei Jiang;Qunfeng Cheng;Xuliang Deng
Ultrastrong MXene films via the synergy of intercalating small flakes and interfacial bridging.
通过插层小薄片和界面桥联的协同作用实现超强 MXene 薄膜
DOI:10.1038/s41467-022-35226-0
发表时间:2022-11-29
期刊:NATURE COMMUNICATIONS
影响因子:16.6
作者:Wan, Sijie;Li, Xiang;Chen, Ying;Liu, Nana;Wang, Shijun;Du, Yi;Xu, Zhiping;Deng, Xuliang;Dou, Shixue;Jiang, Lei;Cheng, Qunfeng
通讯作者:Cheng, Qunfeng
高性能二维纳米复合薄膜的连续化制备技术及应用研究
- 批准号:52373066
- 项目类别:面上项目
- 资助金额:50.00万元
- 批准年份:2023
- 负责人:万思杰
- 依托单位:
国内基金
海外基金
