Material Modification with Radiation Technology

Material Modification with Radiation Technology 

Material modification with radiation technology is the most widespread industrial use of radiation in China. In 2015, the output value of modified material was 7.2 billion US dollars, of which cables and heat-shrinkable materials accounted for more than 70%. More than 200 electron accelerators are in use for cable radiation processing, with a total capacity close to 15 MW. More than 40 electron accelerators are in use for radiation processing of heat-shrinkable materials, with a total capacity of about 3 MW. The annual output value of radiation cross-linked wires and cables has exceeded 4 billion US dollars. Radiation is also applied to modify heat shrinkable materials, foaming materials, ultra-fine polytetrafluoroethylene (PTFE) powder, hydrogel-based wound dressings, grafting and medical polymer materials. Major progress is also expected in radiation modification of wood-plastic materials and biomedical functional films. Major manufacturers include, among others, Shenzhen Woer Heat-shrinkable Material, CGN Dasheng and the Shanghai Changyuan Electronic Material Co., Ltd. 

輻照材料改性

輻照材料改性是中國產業化程度最高的輻射技術應用領域。2015年，改性材料產值72億美元，其中線纜和熱縮材料占70%以上。國內用于線纜輻射加工的電子加速器200余臺，總功率接近15000千瓦。用于熱縮材料輻射加工的電子加速器40余臺，總功率約為3000千瓦。僅輻射交聯電線電纜一項，年產值已超過40億美元。其他比較成熟的輻照改性應用項目有：熱縮材料、發泡材料、聚四氟乙烯超細粉、水凝膠傷口敷料、纖維輻照接枝改性、醫用高分子材料等。在木塑材料、生物醫學功能膜等方面也有望取得重大突破。最主要的改性材料生產商有深圳沃爾核材、中廣核達勝、上海長園等。