四川师范大学学报（自然科学版）2025，Vol.48Issue(3)：312-326,15.DOI:10.3969/j.issn.1001-8395.2025.03.002
环氧树脂基复合材料低温物性测量技术及相关物性研究进展
Measurement Techniques for Low-temperature Physical Properties and Related Research Progress on Physical Properties of Epoxy Resin-Based Composite Materials
摘要
Abstract
Superconducting magnets play a significant role in various fields,including medical applications,transportation,indus-trial production,and large-scale scientific projects,due to their small volume,lightweight,stable magnetic fields,and high intensity.In high-field large superconducting magnets,the insulation system is a critical component that ensures the stability and safe operation of the magnet.The insulation materials must function effectively under harsh conditions,including strong magnetic fields and extremely low temperatures,thus requiring characteristics such as high strength,high toughness,electrical insulation,and compatibility with the thermal expansion coefficient of the conductors at low-temperatures.Epoxy resin is widely used in the insulation systems of cryogenic superconducting magnets due to its excellent mechanical and insulating properties at low-temperatures.It primarily serves to secure the superconducting coils,provides mechanical support,and offers insulation,making it essential for the safe and stable operation of su-perconducting magnets.However,epoxy resin often exhibits insufficient strength,poor toughness,and low thermal conductivity when exposed to the extreme environments encountered in superconducting magnet operation.Therefore,the development of high-perform-ance epoxy resin-based composites suitable for the unique operational conditions of superconducting magnets is of paramount impor-tance.This paper primarily explores the research conducted on the physical properties and testing methods of epoxy resin and its com-posites in a cryogenic environment,with a particular emphasis on three aspects:thermal conductivity,electrical aging properties,and mechanical properties.Additionally,it summarizes the shortcomings of the current research and sets forth new requirements for further studies on the behavior of epoxy resin and its composites at low temperatures and the associated testing techniques.关键词
低温物性/复合材料/环氧树脂/测试技术Key words
low-temperature physical properties/composites/epoxy resin/measurement technology引用本文复制引用
黄荣进,周正荣,王永光,刘辉明,吴智雄,张恒成,张泓玮,李来风..环氧树脂基复合材料低温物性测量技术及相关物性研究进展[J].四川师范大学学报（自然科学版）,2025,48(3):312-326,15.基金项目
中国科学院战略性先导科技专项(B类)(XDB25040300)、湖南省科学技术厅重点领域研发计划项目(2023GK2043)和长沙市科技重大专项(KH2401009) （B类）
