The compatibilizer used in the iPP-PAA (isotactic polypropylene polyacrylic acid copolymer) jointly developed by Kanazawa University of Technology and Sanyo Sungye's research team is to combine carbon fiber and resin through the surface, and a small amount of use can improve the interface adhesion Therefore, composite materials with excellent mechanical properties (high specific strength and high specific elastic modulus) and excellent electrical conductivity (antistatic) can be realized. In addition, with this invention, even short fibers with a carbon fiber length of 0.1 to 50 mm can ensure rigidity, and therefore can improve the moldability of thermoplastic carbon fiber composite materials such as injection molding and extrusion molding, and are expected to expand applications in a wide range of fields. .
The thermoplastic carbon fiber composite material developed this time is expected to be used in automotive and aircraft related components and building materials that require mechanical properties such as high specific strength and high specific elastic modulus. In addition, precision components such as semiconductors that require high levels of antistatic performance The use value of the molding field is also very high, and it is expected that there will be great demand in the future.
2019 news link: Mitani Industries and Kanazawa University of Technology jointly develop carbon fiber sheet project Bridge repair time halved
Mitani Sangyo and Kanazawa Institute of Technology will begin research and development of new CFRP panels for repairing and strengthening old bridges.
Through the application of unique plasma radiation technology, high adhesion of CFRP boards can be achieved, thereby reducing maintenance time by half and reducing costs. In bridge repair and reinforcement work, carbon fiber is usually coated with thermosetting resin and bonded. Since it is necessary to wait for the resin to cure, maintenance usually requires more time.
The new CFRP sheet uses the connection technology of the thermoplastic carbon fiber reinforced plastic that Kanazawa Institute of Technology is studying. This technology makes the material sticky through a special plasma treatment, which speeds up the repair and reinforcement. As the maintenance of aging bridges is a nationwide problem, it is expected that demand will continue to grow.
The project was selected as a subsidy project in Ishikawa Prefecture, and new plates were sold around 2024, thus being commercialized. The price is estimated at USD 120 per square meter. The company's goal is to sell products worth more than $ 78 million to major construction companies.