CARBON FIBER COMPOSITES WITH IMPROVED STRENGTH TRANSFER RATE AND MUNUFACTURING METHOD THEREOF AND PRESSURE VESSEL INCLUDING THE SAME

According to one embodiment of the present invention, a carbon fiber composite with improved strength transfer rate according is prepared by curing a carbon fiber impregnated with an epoxy resin composition, wherein the epoxy resin composition comprises an epoxy resin, a curing agent mixture, and a catalyst. The carbon fiber composite according to the present invention, which has a strength transfer rate of 95% or more, exhibits a high storage efficiency, and thus enables a pressure vessel in which a small amount of the carbon fiber composite is applied to store the same amount of fuel. Accordingly, the present invention makes it possible to reduce the weight and size of pressure vessels and, in particular, can be suitably used for a hydrogen pressure vessel capable of storing hydrogen. 본 발명의 일 실시예에 따른 강도전이율이 향상된 탄소섬유 복합재료는 에폭시 수지, 경화제 혼합물 및 촉매를 포함하는 에폭시 수지 조성물이 탄소섬유에 함침되고 경화된 것으로, 95% 이상의 강도전이율을 가져 압력용기에 적용 시 높은 저장효율을 가져 적은 복합재료 양으로도 동일한 양의 연료를 저장할 수 있어 압력용기의 경량화 및 소형화를 가능하게 할 수 있고, 특히 수소를 저장할 수 있는 수소압력용기에 적합하다.