DOPO-BPS/OSEP/EP-CE阻燃复合材料的制备及性能  

Preparation and properties of DOPO-BPS/OSEP/EP-CE flame retardant composite materials

作　　者：刘勇 姜一帆 耿鑫玺 张焘 LIU Yong;JIANG Yifan;GENG Xinxi;ZHANG Tao(College of Resources,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan Hunan 411201,China;Hunan Engineering Research Center for Fire and Explosion Prevention Materials and Equipment in Underground Spaces,Xiangtan Hunan 411201,China;Key Laboratory of Fire and Explosion Prevention and Emergency Technology in Hunan Province,Xiangtan Hunan 411201,China;College of Safety Science and Engineering,Nanjing Technology University,Nanjing Jiangsu 211816,China)

机构地区：[1]湖南科技大学资源环境与安全工程学院,湖南湘潭411201 [2]地下空间防火防爆材料与装备湖南省工程研究中心,湖南湘潭411201 [3]火灾爆炸防控与应急技术湖南省普通高等学校重点实验室,湖南湘潭411201 [4]南京工业大学安全科学与工程学院,江苏南京211816

出　　处：《中国安全科学学报》2025年第2期111-117,共7页China Safety Science Journal

基　　金：湖南省自然科学基金资助(2024JJ8338)。

摘　　要：为提高环氧树脂(EP)-氰酸酯树脂(CE)复合材料的阻燃与抑烟性能,首先以9,10-二氢-9-氧杂-10-磷杂菲10-氧化物(DOPO)与4,4'-二羟基二苯砜(BPS)为原料,合成一种新型阻燃剂DOPO-BPS,通过溶液浇筑法,将DOPO-BPS与有机海泡石(OSEP)共同引入EP-CE基体中,制备阻燃DOPO-BPS/OSEP/EP-CE复合材料;然后在傅里叶红外光谱仪(FTIR)分析、核磁共振(NMR)分析、热重分析(TGA)、极限氧指数(LOI)测试、UL-94垂直燃烧测试和锥形量热仪分析的基础上,研究不同比例的DOPO-BPS与OSEP对EP-CE复合材料阻燃性能和抑烟性能的影响。研究表明:DOPO-BPS的磷杂菲环结构能形成稳定炭层,阻断热氧传递,与OSEP的协同作用显著提升了阻燃效果和抑烟性能。当阻燃剂DOPO-BPS与OSEP以9∶1的质量比添加至EP-CE时,阻燃性能和抑烟性能最佳,阻燃性能达V-0级,LOI增至31.4%,且热释放速率峰值、总热释放量和产烟总量相比于EP-CE,分别降低了29.7%、32.2%和32.7%。To enhance the flame retardancy and smoke suppression performance of EP-CE composites,a novel flame retardant was synthesized using DOPO and BPS as raw materials.The flame-retardant DOPO-BPS/OSEP/EP-CE composites were fabricated by the solution casting method,where DOPO-BPS and OSEP were jointly introduced into EP-CE matrix.Based on Fourier transform infrared spectroscopy(FTIR)analysis,nuclear magnetic resonance(NMR)analysis,thermogravimetric analysis(TGA),limiting oxygen index(LOI)test,UL-94 vertical burning test,and cone calorimeter analysis,the effects of different ratios of DOPO-BPS and OSEP on the flame retardancy and smoke suppression properties of EP-CE composite materials were studied.The results show that the phosphaphenanthrene ring structure of DOPO-BPS could form a stable carbon layer and block the transfer of heat and oxygen.The synergistic effect with OSEP significantly improves the flame retardant effect and smoke suppression performance.When the flame retardant DOPO-BPS and OSEP are added to EP-CE at a mass fraction of 9∶1,the flame retardant performance and smoke suppression performance are the best,the flame retardant performance reaches V-0 level,and the LOI increases to 31.4%.Compared with EP-CE,the peak heat release rate,total heat release and total smoke production decrease by 29.7%,32.2%and 32.7%,respectively.

关 键 词：环氧树脂(EP) 氰酸酯树脂(CE) 9 10-二氢-9-氧杂-10-磷杂菲10-氧化物(DOPO) 4 4'-二羟基二苯砜(BPS) 有机海泡石(OSEP) 阻燃 复合材料 

分 类 号：X932[环境科学与工程—安全科学]