Manufacture of antibacterial carbon fiber-reinforced plastics (CFRP) using imine-based epoxy vitrimer for medical application
Wonbin Kim,
Yong Min Kim,
SeungHyeon Song,
Eunjung Kim,
Dong-Gyun Kim,
Yong Chae Jung,
Woong-Ryeol Yu,
WonJin Na,
Yong-Seok Choi
Affiliations
Wonbin Kim
Composites Materials Application Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea
Yong Min Kim
Composites Materials Application Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea; Department of Material Science and Engineering and Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 151-742, Republic of Korea
SeungHyeon Song
Composites Materials Application Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea; Functional Soft Materials Laboratory, School of Chemical Engineering Jeonbuk National University, Beakje-dearo 567, Deokjin-gu, 54896, Jeonju, Republic of Korea
Eunjung Kim
Composites Materials Application Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea; Department of Material Science and Engineering and Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 151-742, Republic of Korea
Dong-Gyun Kim
Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
Yong Chae Jung
Composites Materials Application Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea
Woong-Ryeol Yu
Department of Material Science and Engineering and Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 151-742, Republic of Korea
WonJin Na
Composites Materials Application Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea; Corresponding author.
Yong-Seok Choi
Composites Materials Application Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea; Corresponding author. Korea Institute of Science and Technology, Republic of Korea.
An antibacterial carbon fiber-reinforced plastics (CFRP) was manufactured based on a vitrimer containing imine groups. A liquid curing agent was prepared to include an imine group in the matrix, and was synthesized without a simple mixing reaction and any purification process. The vitrimer used as the matrix for CFRP was prepared by reacting a commercial epoxy with a synthesized curing agent. The structural and thermal properties of the vitrimer were determined by Fourier transform-infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). In addition, the temperature-dependent behavior of the vitrimer was characterized by stress relaxation, reshaping, and shape memory experiments. The mechanical properties of composites fabricated using vitrimer were fully analyzed by tensile, flexural, short-beam strength, and Izod impact tests and had mechanical properties similar to reference material. Moreover, both the vitrimer and the vitrimer composites showed excellent antibacterial activity against Staphylococcus aureus and Escherichia coil due to the imine group inside the vitrimer. Therefore, vitrimer composites have potential for applications requiring antimicrobial properties, such as medical devices.
