可膨胀石墨/氢氧化铝复配改性聚氨酯泡沫的阻燃性能
Flame Retardation of Polyurethane Foams Modified with Expandable Graphite and Aluminum Hydroxide
摘 要
将可膨胀石墨(EG)与氢氧化铝(ATH)作为阻燃剂添加到硬质聚氨酯泡沫材料(RPUF)中,制备了EG和ATH单独改性RPUF以及EG/ATH复配改性RPUF(总加入量保持30质量份不变),研究了单独改性RPUF和复配改性RPUF的氧指数及阻燃性能.结果表明:EG/ATH复配可产生明显的协同阻燃效果,EG15/ATH15复配改性RPUF的氧指数达到了31%;与未改性RPUF相比,EG15/ATH15复配改性RPUF的热释放速率峰值由148.8 kW·m-2降至66.1 kW·m-2,烟释放速率峰值由0.106 m2·s-1降至0.047 m2·s-1;复配改性的阻燃效果总体比单独改性的好.
可膨胀石墨
氢氧化铝
阻燃性能
polyurethane
expandable graphite
aluminum hydroxide
flame retardation
Abstract
Expandable graphite (EG) and aluminum hydroxide (ATH) were incorporated into rigid polyurethane foam (RPUF) to prepare single-modified RPUF by EG and ATH respectively,and compound-modified RPUF by EG and ATH.Oxygen index and flame retardation of the RPUFs were studied.The results indicate that the synergistic flame retardant effect was significant when EG and ATH was used in combination,and the oxygen index of the EG15/ATH15 compound-modified RPUF up to 31%.Compared with the RPUF before modification,heat release rate peak of the EG15/ATH15 compound-modified RPUF decreased from 148.8 kW·m-2 to 66.1 kW·m-2,smoke release rate peak reduced from 0.106 m2·s-1 to 0.047 m2·s-1.Flame ratardant efficiency of compound-modified RPUF was better than that of single-modified RPUF.
中图分类号 TQ328.3 DOI 10.11973/jxgccl201507019
所属栏目 材料性能及其应用
基金项目 公安部应用创新项目(2013YYCXWJXY104);北京市自然科学基金资助项目(2144048)
收稿日期 2014/11/21
修改稿日期 2015/5/11
网络出版日期
作者单位点击查看
备注舒中俊(1964-),男,湖北京山人,教授,博士.
引用该论文: SHU Zhong-jun,ZHU Ning,FAN Yong,JIN Jing,WANG Wan-jin,HE Kui,WU Jing-peng,ZHANG Jin-zhuan,DONG Quan-xiao. Flame Retardation of Polyurethane Foams Modified with Expandable Graphite and Aluminum Hydroxide[J]. Materials for mechancial engineering, 2015, 39(7): 91～94
舒中俊,朱宁,樊勇,金静,王万金,贺 奎,吴敬朋,张金专,董全霄. 可膨胀石墨/氢氧化铝复配改性聚氨酯泡沫的阻燃性能[J]. 机械工程材料, 2015, 39(7): 91～94
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参考文献
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【3】常海,王吉贵,甘孝贤.含磷系卤素系阻燃聚氨酯材料的研究进展[J].火炸药学报,2004,27(2):57-57.
【4】金军.聚氨酯硬质泡沫阻燃技术研究及趋势[J].安徽冶金科技职业学院报,2007,17(4):67-68.
【5】张晓光,王列平,宁斌科,等.聚氨酯泡沫塑料无卤阻燃技术的研究进展[J].化工进展,2012,31(7):1522-1523.
【6】THIRUMAL M,DIPAK K,NIKHIL K S,et al.Effect of expandable graphite on the properties of intumescent flame-retardant polyurethane foam[J].Journal of Applied Polymer Science,2008,110(5):2586-2594.
【7】高建平,边祥成,项春雷.可膨胀石墨阻燃聚氨酯泡沫塑料的研究进展[J].广东化工,2012,39(6):295-296.
【8】MODESTI M,LORENZETTI A.Expandable graphite as an intumescent flame retardant in polyisocyanurate-polyurethane foams[J].Polymer Degradation and Stability,2002,77:195-202.
【9】四季春,郑水林,路迈西.无机复合阻燃填料在软质聚氯乙烯中的应用研究[J].机械工程材料,2004,28(12):26-28.
【10】CINAUSERO N,AZEMA N,LOPEZ-CUESTA J M,et al.Synergistic effect between hydrophobic oxide nano-particle sand ammonium polyphosphate on fire properties of poly (methylmethacrylate) and polystyrene[J].Polymer Degradation and Stability,2011,96(8):1445-1454.
【11】BIAN Xiang-cheng,TANG Jian-hua,LI Zhong-ming.Flame retardancy of hollow glass microsphere/rigid polyurethane foams in the presence of expandable graphite[J].Journal of Applied Polymer Science,2008,109:1935-1943.
【12】GOODS S H,NEUSCHWANGER C L,WHINNERY L L,et al.Mechanical properties of a particle-strengthened polyurethane foam[J].Journal of Applied Polymer Science,1999,74:2724-2736.
【13】DUQUESNE S,LE BRAS M ,BOURBIGOT S.Thermal degradation of polyurethane and polyurethane/expandable graphite coatings[J].Polymer Degradation and Stability,2001,74:493-499.
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