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.

关键技术研究与开发 5：

原丝生产技术：原丝质量是决定碳纤维性能的关键因素之一。研发工作需要解决粘度不稳定、气泡杂质多、纺丝细度高、强度低、纤维过多等问题，以获得高质量的聚丙烯腈（PAN）原丝。

碳化技术：生丝经过氧化、低温碳化、高温碳化等多道工序。在惰性气体保护下，经过热分解和热收缩聚合，形成无序层状石墨结构的碳纤维，最终使产品含碳量超过 90%。温度场控制是这一工艺的关键技术。

研发成果的应用 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.

在体育器材领域，它可以制成羽毛球拍、滑雪板、冰球棍等。吉林化纤集团生产的相关运动器材已投放市场。

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.

未来研发方向：一方面，我们将继续致力于提高碳纤维的强度、模量等性能，以满足航空航天等高端领域对材料的更高要求；另一方面，我们将致力于降低生产成本，通过优化工艺、改进设备等手段提高生产效率，扩大碳纤维的应用范围，推动其在更多民用领域的大规模应用。