弹道学报2025，Vol.37Issue(3)：1-7,42,8.DOI:10.12115/ddxb.2025.08001
石墨烯改性水性聚氨酯胶体冲击响应与电磁波吸收特性
Impact Response and Electromagnetic Wave Characteristics of Graphene-modified Water-based Polyurethane Colloids
摘要
Abstract
To enhance the electromagnetic functionality of polyurethane colloids in ultra-high molecular weight polyethylene(UHMWPE)fiber composites,highly-conductive graphene was incorporated to develop a colloid material exhibiting both excellent mechanical properties and superior electromagnetic wave-absorption capabilities.The mechanical response of the modified polyurethane was investigated through quasi-static tensile tests and dynamic loading experiments using a split Hopkinson pressure bar(SHPB)system.Additionally,its electromagnetic wave absorption performance was evaluated in the 1～18 GHz frequency range using a vector network analyzer.Results indicate that the modified polyurethane material demonstrates outstanding elasticity and toughness under both quasi-static and dynamic conditions.Under dynamic loading,the material exhibits pronounced strain rate sensitivity and strong energy absorption capability,with its failure modes showing significant dependence on strain rate.In terms of electromagnetic performance,the reflection loss in the L and S bands is below-22.3 dB,corresponding to an absorption rate exceeding 99%.The material maintains effective absorption in the C and X bands,while performance in the Ku band shows a slight decline yet remains above-12 dB.The study confirms that the incorporation of highly-conductive graphene effectively establishes a stable conductive network within the matrix,significantly enhancing the material's electromagnetic response without compromising its mechanical integrity.The graphene-modified polyurethane colloid developed in this work holds promising potential for application in UHMWPE fiber composites aimed at integrated stealth and protection functionalities.关键词
改性水性聚氨酯胶体/高导电石墨烯/动态力学性能/电磁波吸收Key words
modified water-based polyurethane colloid/highly conductive graphene/dynamic mechanical properties/electromagnetic wave absorption分类
军事科技引用本文复制引用
李翔宇,苏子涵,梁民族..石墨烯改性水性聚氨酯胶体冲击响应与电磁波吸收特性[J].弹道学报,2025,37(3):1-7,42,8.基金项目
国家自然科学基金(12272410,12522215) （12272410,12522215）
目标易损性评估全国重点实验室开放基金(YSX2024KFXY009) （YSX2024KFXY009）
湖南省重点研发计划(2025JK2084) （2025JK2084）
