철도차량용 복합소재 라미네이트 패널의 다기능화 연구

초록

Composite material has superior specific strength and stiffness compared to conventional metals, so their application in the transportation filed is expanding. In the case of railway field, high level of fire safety is required and phenol resin with excellent flame retardancy is used in the manufacture composite materials to meet this requirement. However, since phenol resin has high brittleness, there are disadvantages in that the vibration and noise inside the railway vehicle increase and become vulnerable to collision. In addition, although many research and technologies have been developed to apply composite materials to railway vehicles, it is difficult to gain an edge in price competitiveness compared to existing metals, so its utilization in the field is insufficient. Therefore in this study, the toughness of the resin was improved through the incorporation of additives and by inserting a carbon fiber heating element inside the composite, a composite material with radiant heating function was developed. In addition in order to offset the price increase due to the improvement of toughness and multifunctionality, composite materials were manufactured using the resin infusion method, which can reduce the price, and the degree of toughness improvement and heat generation performance were evaluated. In the future, it is expected that result of this study will contribute to the expansion of the application of composite materials in railway vehicle By this study result.