期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 231, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2022.109822
关键词
Carbon fibre; Polymer -matrix composites; Interface; interphase
This research established a direct and efficient method to manufacture Graphene/CF hierarchical reinforcement based on chemical bonding. The prepared graphene-modified multi-scale composites exhibit excellent comprehensive properties, including improved interfacial shear strength, flexural strength, and glass transition temperature.
The previous results indicated that the bonding strength between graphene and carbon fiber (CF) has a greater impact on the reinforcement efficiency. And chemical bonding can provide the maximum bonding force between graphene and CF, which usually requires a series of complicated processes and a long preparation time. In this research, we have established a direct and efficient method to manufacture Graphene/CF hierarchical reinforcement based on chemical bonding. The Graphene/CF hierarchical reinforcement was prepared by the means of the rapid insertion and addition reaction of diaryl carbene. FTIR, Raman, XPS, XRD confirmed the structure of graphene and CF. Graphene-modified multi-scale composites exhibit excellent comprehensive properties, including ILSS (97.2 MPa), flexural strength (2043 MPa) and Tg (240 degrees C), which are increased by 23.2%, 34.4%, and 13 degrees C, respectively. This protocol was considered to provide an alternative strategy for the rapid and largescale manufacturing of graphene/CF hierarchical reinforced materials based on covalent bonds.
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