Overview of the Technological Development and Industrial Status of Irradiation Crosslinked Wires and Cables

To systematically sort out the technological progress and industrial development status in the field of irradiation crosslinked wires and cables, as well as analyze the industrial pattern, technical bottlenecks and future trends of this sector, this paper reviews the radiation source mechanism of irradiation crosslinking technology, the types of electron accelerator equipment, and the industrial patterns at home and abroad. It summarizes the irradiation crosslinking behaviors and modification methods of typical base materials such as polyethylene, polyvinyl chloride and fluoroplastics. The advantages and disadvantages of irradiation crosslinking process are compared with those of chemical crosslinking and silane crosslinking. Combined with patent data and market statistics, the paper evaluates the hotspots of technological R&D, the distribution of application fields and the industrial competition landscape. The results show that a complete industrial chain has been established in China, with a market scale exceeding 12 billion yuan. Patent applications related to irradiation crosslinking materials account for 96% of the total applications, among which polyolefins are the focus of R&D. Irradiation crosslinked wires and cables have been applied on a large scale in new energy vehicles, photovoltaics, rail transit and other fields, entering a stage of rapid development with distinct technical advantages and broad market prospects. Further breakthroughs are needed in the future in the localization of high-end materials, independent control of core equipment, improvement of process precision and expansion of emerging applications, so as to meet the demand for high-performance cables in strategic fields such as new energy and aerospace.