Research and development background and significance: Carbon fiber is a high-strength new fiber material with a carbon content of over 95%. Due to its excellent properties such as high strength, lightweight, and corrosion resistance, it is known as the “black gold” and is an ideal material for equipment lightweight applications. Developing carbon fiber can help promote the upgrading of related industries and improve product performance, such as reducing aircraft weight and enhancing fuel efficiency in the aerospace field; In the field of automobiles, it is possible to achieve lightweighting and reduce energy consumption.

Research and development process: China’s carbon fiber research and development started relatively late and once relied on imports, facing a bottleneck problem. In 2005, the CCF-1 grade carbon fiber developed by Guangwei Group passed the national “863 Program” carbon fiber special acceptance, marking China’s first industrial carbon fiber. In 2011, the 5000 ton carbon fiber precursor project of Jilin Chemical Fiber Group was completed and put into operation, pioneering the large-scale production of carbon fiber precursor in China. Since then, domestic enterprises have continuously overcome technical difficulties, such as Jilin Chemical Fiber Group, which has successively developed 25K, 35K, 48K, 50K and other large fiber bundles, and improved the carbon fiber product system. In 2022, the first domestic production line for the 48K large fiber bundle carbon fiber project of Sinopec Shanghai Petrochemical was put into operation and qualified products were produced. The product performance was comparable to similar products outside the United States, and the quality reached the international advanced level of 5.

핵심 기술 연구 및 개발 5:

생사 생산 기술: 원사 품질은 탄소 섬유의 성능을 결정하는 핵심 요소 중 하나입니다. 고품질의 폴리 아크릴로니트릴(PAN) 전구체 섬유를 얻기 위해서는 불안정한 점도, 높은 기포 불순물, 높은 방사 섬도, 낮은 강도, 과도한 섬유 등의 문제를 해결하기 위한 연구 및 개발이 필요합니다.

탄화 기술: 원료 실크는 산화, 저온 탄화, 고온 탄화와 같은 여러 공정을 거칩니다. 불활성 가스 보호 하에 열분해와 열수축 중합을 거쳐 탄소 섬유의 무질서한 층 흑연 구조를 형성하여 궁극적으로 제품의 탄소 함량이 90%를 초과하게 됩니다. 이 과정에서 온도장 제어는 핵심 기술입니다.

R&D 성과 적용 1:

In the field of wind power, carbon fiber extruded plates can be used for the main beams of wind turbine blades, making them lighter and more efficient. Jilin Chemical Fiber Group’s carbon fiber extruded plates for wind turbine blade main beams have a market share of over 90% in the domestic wind power market.

스포츠 장비 분야에서는 배드민턴 라켓, 스키, 아이스하키 스틱 등으로 만들 수 있습니다. 길림화섬그룹에서 생산한 관련 스포츠 장비가 시장에 출시되었습니다.

In the field of construction machinery, Zoomlion has independently developed the “Carbon Fiber Composite High Strength Metal Hybrid Structure Technology”. The domestically produced carbon fiber arm pump truck using this technology has been unveiled, realizing the full chain autonomy of carbon fiber composite materials from raw materials to manufacturing processes, improving equipment operation capabilities, and reducing production costs.

향후 연구 개발 방향 한편으로는 항공우주 등 고급 분야의 소재에 대한 높은 요구 사항을 충족하기 위해 강도, 탄성률 등 탄소섬유의 성능을 향상시키는 데 주력하고, 다른 한편으로는 공정 최적화, 장비 개선 등을 통해 생산 비용을 절감하고 생산 효율성을 개선하여 탄소섬유의 적용 범위를 확대하고 더 많은 민간 분야에 대규모로 적용하는 데 주력할 계획입니다.