炭素纖維 發熱體 제조 및 炭素 發熱體를 이용한 産業用 機器

Abstract

TiO2 nanoparticle can be used for the improvement of performance of the carbon fiber reinforced epoxy resin composites. In this study, the effect of the size of TiO2 nanoparticle on the mechanical properties for the carbon fiber reinforced epoxy resin composites was investigated. The size of TiO2 nanoparticle was easily controlled by heat treatment. The heat treatment of TiO2 nanoparticle was conducted between 700 ℃ and 900 ℃. The obtained size of TiO2 nanoparticle was 20 nm, 100 nm and 200 nm respectively. Three types of carbon fiber with different diameter were also used for this study. As the diameter of carbon fiber is smaller, the strand type specimens showed higher tensile strength. It was also found that the carbon fiber reinforced epoxy resin composites with 20 nm TiO2 powder showed the highest tensile strength than the ones of any other types of CFRP regardless of fiber maker or fiber diameter. The size of TiO2 powder and the diameter of carbon fiber affected strongly to the interfacial properties of all kinds of CFRP in this study. Carbon fiber also shows excellent heat generation value and thermal efficiency than the metallic materials because of its far infrared-rays and radiant heat. So, high performance and economic steam boiler system for the industry can be manufactured by using the carbon fiber heater. The far infrared ray radiation rate was more than 90 % of carbon fiber. Steam boiler system with carbon fiber heater in thin study is made up of heating section, evaporation section and amplification section. In the proof test of steam boiler, the aimed temperature and dwelling time were 500 ℃～8000 hours, 600℃～3000 hours, and 700℃～1000 hours. The temperature rise rate of steam boiler with carbon fiber heater was about 40 % faster than that of the conventional boiler.