纳米氧化锌对硅橡胶泡沫阻燃抑烟性能的影响  

Effect of nano-ZnO on flame retardant and smoke suppressant properties of silicone rubber foam

作　　者：康付如 郭兰兰 胡鹏 田汭川 涂佳瑶 王倩 Kang Furu;Guo Lanlan;Hu Peng;Tian Ruichuan;Tu Jiayao;Wang Qian(College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054;Key Laboratory of Coal Fire Disaster Prevention in Shaanxi Province,Xi'an 710054;Guangdong Hualu Transportation Technology Co.,Ltd.,Guangzhou 510000)

机构地区：[1]西安科技大学安全科学与工程学院,西安710054 [2]陕西省煤火灾害防治重点实验室,西安710054 [3]广东华路交通科技有限公司,广州510000

出　　处：《化工新型材料》2025年第4期278-283,共6页New Chemical Materials

基　　金：陕西省秦创原“科学家+工程师”队伍建设项目(2022KXJ-166);陕西省重点研发项目(2023-YBGY-479);国家自然科学基金青年项目(52104219)。

摘　　要：为提高硅橡胶泡沫(SRF)的阻燃抑烟性能,采用室温脱氢法制备以纳米氧化锌(ZnO)为阻燃剂的SRF材料,通过极限氧指数(LOI)、UL-94试验、锥形量热仪和烟密度仪测试,研究纳米ZnO对SRF体系阻燃抑烟性能的影响。结果表明:添加5%及以上纳米ZnO后,SRF的垂直燃烧等级均达到V-0级;添加5%纳米ZnO时SRF的LOI为29.1%,热释放速率峰值和总热释放量峰值分别降低18.6%和17.9%;添加25%纳米ZnO的SRF的产烟率峰值和产烟量分别降低53.72%和56.34%;添加10%纳米ZnO时SRF能够抑制CO_(2)与CO生成,最大烟密度和烟密度等级分别下降了31.1%和21.7%。研究结果可为提升SRF材料阻燃抑烟性能提供借鉴。In order to improve the flame retardant and smoke suppressant performance of silicone rubber foam(SRF),SRF materials with nano zinc oxide(ZnO)as flame retardant were prepared by room temperature dehydrogenation method,and the effects of nano-ZnO on the flame retardant and smoke suppressant properties of SRF system were studied by limiting oxygen index(LOI),UL-94 test,cone calorimeter and smoke density meter test.The results showed that the vertical combustion level of SRF reached V-0 level after adding 5wt%and above nano-ZnO.The LOI of SRF with 5%nano-ZnO was 29.1%,and the peak heat release rate and total heat release rate were reduced by 18.6%and 17.9%,respectively.For SRF with 25%nano-ZnO,the peak smoke production rate and smoke production of SRF were reduced by 53.72%and 56.34%,respectively.Additionally,when 10wt%nano-ZnO was added,the SRF was able to suppress the generation of CO_(2)and CO,and the maximum smoke density and smoke density class decreased by 31.1%and 21.7%,respectively.The research results can provide a reference for improving the flame retardant and smoke suppressant properties of SRF materials.

关 键 词：硅橡胶泡沫 纳米ZNO 阻燃性能 抑烟性能 

分 类 号：X932[环境科学与工程—安全科学]