Jiangsu Hongjing New Materials Co., Ltd., a subsidiary of Shenghong Holding Group, was successfully shortlisted and will undertake the research project of "ethylene-acrylate copolymer (EBA) for high-voltage cable shielding materials", marking that Shenghong's technical strength and innovation ability in the field of high-end polyolefins have been recognized by national authoritatives, and China has taken a solid step in the process of independent and controllable key materials for high-voltage cables.
Focusing on the three directions of key materials, key equipment and intermediate raw materials, a number of benchmarking units with leading technology, outstanding innovation ability and strong industrial driving force will be selected to focus on tackling key problems, focusing on solving the "bottleneck" problem of the industrial chain and supply chain, and improving the resilience and safety level of China's fine chemical industry chain supply chain. In the field of key materials, ethylene-acrylate copolymer (EBA) for high-voltage cable shielding materials, as the core matrix resin of ultra-smooth semi-conductive shielding materials for ultra-high voltage cables of 110kV and above, has long been highly dependent on imports, which has become a key bottleneck restricting the construction of new power systems and the safe operation of power grids.
The "15th Five-Year Plan" clearly proposes to accelerate the construction of a new power system and comprehensively improve the safe and stable operation capacity of the power system - which puts forward higher requirements for the independent supply and quality upgrade of core materials for high-voltage transmission. According to statistics, the annual demand for 110/220kV high-voltage cables in China exceeds 15,000 kilometers, corresponding to the annual demand of ultra-smooth semi-conductive shielding materials exceeds 20,000 tons, with broad market space and outstanding strategic value. As the core supplier in the field of high-end polyolefins in China, Hongjing New Materials has risen to the challenge and taken the initiative, relying on the raw material guarantee and key technology accumulation of the whole chain to form a complete innovation chain from R&D, pilot to industrialization, laying a solid foundation for the ethylene-acrylate copolymer (EBA) research task unveiled this time.
After the accumulation of preliminary technology, Jiangsu Hongjing New Materials Co., Ltd. has completed the EBA trial study, initially mastered the key synthesis process, and has the conditions for pilot scale-up; At the same time, we are accelerating the construction of 50,000 tons/year high-end copolymerization new material plant (including EBA) to help EBA products compete with the world's first-class level in key properties such as resistivity stability and surface finish. With a high-quality professional R&D team and rich experience in national project research, the company has the excellent strength to achieve large-scale production of EBA and high-quality and stable supply, providing a full chain and all-round guarantee for the completion of the unveiling task. After the implementation of the unveiling project, it will break the monopoly of foreign technology, greatly reduce supply chain risks, shorten the supply cycle, reduce comprehensive costs, help improve the quality and upgrading of China's high-voltage cable industry, and inject strong momentum into driving the coordinated development of upstream and downstream and building a solid material foundation for the safe operation of the power system.
