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research article
高低温环境对剪切硬化胶改性乙烯-醋酸乙烯酯泡沫的防护性能影响
Authors
康越
杨喆
+4 more
杨昊玮
王俊龙
闫维佳
魏延鹏
Publication date
8 August 2025
Publisher
Abstract
乙烯-醋酸乙烯酯泡沫(ethylene-vinyl acetate foam,EVA)广泛应用于防弹衣缓冲层、护膝护肘中作为缓冲材料。文章利用剪切硬化胶(shear stiffening gel,SSG)对EVA进行改性,得到了具备更高冲击防护性能的EVA/SSG复合缓冲泡沫。为研究高低温环境对EVA/SSG泡沫材料缓冲性能的影响,利用动态热机械分析、万能压缩机对EVA/SSG泡沫在–50℃~50℃下的力学性能进行了研究,得到了EVA/SSG材料的损耗模量、储能模量、屈服强度随温度变化的规律;同时借助落球试验平台系统研究了高低温环境(–50℃~50℃)对EVA/SSG泡沫材料冲击防护性能的影响。通过分析落球冲击试验结果与材料的力学性能测试结果,系统总结了高低温环境对EVA/SSG复合泡沫材料防护性能的影响规律
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 22/11/2025