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作 者:党勇 王宏阳 王俊胜 杨进军[1] Dang Yong;Wang Hongyang;Wang Junsheng;Yang Jinjun(School of Environmental Science and Safety Engineering,Tianjin University of Technology,Tianjin 300384,China;Tianjin Fire Science and Technology Research Institute of MEM,Tianjin 300381,China;Key Laboratory of Fire Protection Technology for Industry and Public Building,Ministry of Emergency Management,Tianjin 300381,China;Tianjin Key Laboratory of Fire Safety Technology,Tianjin 300381,China)
机构地区:[1]天津理工大学环境科学与安全工程学院,天津300384 [2]应急管理部天津消防研究所,天津300381 [3]工业与公共建筑火灾防控技术应急管理部重点实验室,天津300381 [4]天津市消防安全技术重点实验室,天津300381
出 处:《消防科学与技术》2025年第3期396-401,共6页Fire Science and Technology
基 金:国家重点研发计划(2023YFC3011703);应急管理部天津消防研究所基科费项目(2023SJ17)。
摘 要:通过力学、高温隔热试验及有限元模拟分析,对比了4种不同织物组织的芳纶基布在复合硅泡沫前后撕裂强力的变化,探究了不同厚度及织物种类硅泡沫复合芳纶织物的隔热性能及热量传导机制。结果显示,硅橡胶泡沫的引入提高了芳纶平纹织物的整体撕裂强力并且显著提升了织物的隔热性能,有效减缓了热收缩现象。经过综合评估可知,5 mm厚度硅橡胶泡沫复合芳纶平纹织物在平衡隔热与散热关系上表现最佳,其在接触热环境和对流热环境下背温降低。此外,研究采用有限元模拟分析方法,模拟结果与试验数据吻合度较好,误差在10%以内,验证了模型的可靠性。本研究可为高性能复合织物的研发及个体防护装备的优化设计提供基础技术支撑。Through mechanics,high-temperature thermal insulation test and finite element simulation analysis,we compared the change rule of tear strength of aramid base fabrics with four different fabric organizations before and after composite with silicone rubber foam layer,and explored the thermal insulation performance and heat conduction mechanism of aramid plain fabrics composite with different thicknesses of silicone rubber foam.The results showed that the introduction of silicone rubber foam increased the overall tear strength of plain fabrics and significantly improved the thermal insulation properties of the fabrics,effectively slowing down the heat shrinkage phenomenon.After comprehensive evaluation,it can be seen that the 5 mm thickness silicone rubber foam composite aramid plain fabric performs the best in balancing the relationship between heat insulation and heat dissipation,with a back temperature reduction in the contact heat environment and the convective heat environment.In addition,the finite element simulation analysis method was adopted in this study.The simulation results show a good degree of agreement with the experimental data,with an error within 10%,verifying the reliability of the model.This research can provide basic technical support for the research and development of high-performance composite fabrics and the optimized design of personal protective equipment.
分 类 号:X913.4[环境科学与工程—安全科学] TS101.92[轻工技术与工程—纺织工程]
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