期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 146, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2021.106409
关键词
Carbon nanotubes; Nanocomposites; Strength; Fracture toughness
资金
- National Key R&D Program of China [2018YFA0208404]
- National Natural Science Foundation of China [U1362104]
- Innovation Program of Shanghai Municipal Education Commission
A facile and effective method was proposed for preparing high-strength CNT/EP composite films, achieving a tensile strength of 2.5 GPa, which is about 5 times that of the raw CNT film. This approach may offer an effective strategy for the preparation of high-performance CNT composite materials.
Carbon nanotubes (CNTs) have been considered as potential reinforcements for various composites due to their excellent mechanical properties. However, it is still a challenge to prepare high-performance CNT/resin composites, resulting from the weak interfacial bonding between individual CNTs or that between CNTs and resin. Herein, a facile and effective method for preparing high-strength CNT/epoxy resin (EP) composite films is put forward, consisting of a controllable cross-linking treatment to the well-aligned CNT films and subsequent chemical filling with EP. Benefiting from the synergistic effects of optimized cross-linked CNTs and further enhancement by EP, the tensile strength of the obtained CNT/EP composite film reaches 2.5 GPa, which is about 5 times that of the raw CNT film. Our study might provide an effective strategy toward the preparation of highperformance CNT composite materials.
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