无机氢氧化镁铝阻燃剂对中密度纤维板阻燃性能的影响  

Effects of Inorganic Magnesium-aluminium Hydroxide Flame Retardant on Fire Resistance Properties of Medium Density Fiberboard

作　　者：兰平 杨蕊 李维刚 计颖 LAN Ping1 , YANG Rui1 ,LI Wei-gang2 ,JI Ying3(1. College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China 2. Jiangsu Sulin Wood Industry Co. ,Ltd. ,Suyang,Jiangsu 2Z3613 ,China Chen g de Engineering Construction Quality Supervision Station, Cheng de , Hebei 067000, Chin)

机构地区：[1]南京林业大学材料科学与工程学院,江苏南京210037 [2]江苏苏林木业有限公司,江苏沭阳223613 [3]承德市工程建设质量监督站,河北承德067000

出　　处：《西北林学院学报》2018年第2期203-208,共6页Journal of Northwest Forestry University

基　　金：国家自然科学基金(31400502;31470590;31500483);2015年江苏省双创博士资助项目;江苏省自然科学基金(BK20150876)

摘　　要：采用共沉淀法制备无机氢氧化镁(MH)和氢氧化铝(ATH)复合阻燃剂,并将它和ATH分别用于压制阻燃中密度纤维板,探讨无机金属氢氧化物阻燃剂对中密度纤维板燃烧过程中的热释放性能、质量变化、烟释放性能和烟气毒性的影响。结果表明,添加无机氢氧化物的MDF的点燃时间延长;热释放速率和热释放量减小;MDF燃烧过程中质量损失速率降低,残余物质量增多;烟释放量明显减小,烟气中CO_2和CO的生成速率降低,表现出显著的阻燃抑烟效果。与单一ATH相比,无机氢氧化镁铝复合阻燃剂体系中的MH和ATH具有协同阻燃效果,能更有效地降低热量释放和烟释放,提高阻燃效率,减少阻燃剂的用量。The inorganic magnesium-aluminium hydroxide composite flame retardant was prepared by co- precipitation method. Then flame retardant medium density fiberboard （MDF） was pressed using magnesi- um-aluminium hydroxide composite and aluminium hydroxide （ATH） as flame retardant, respectively. Effects of different inorganic metal hydroxide on heat release performace, mass loss, smoke performance and toxicity of MDF were discussed. The results showed that the ignition time of flame retardant MDF pro- longed,the heat release rate and the total heat release decreased, the mass loss rate declined during combus- tion and the mass of residue increased after combustion,the smoke release and the production of CO2 and CO in flue gas decreased. It showed significant flame retardant and smoke Suppression effects. Compared to ATH,the magnesium hydroxide （MH） and ATH had synergisitic flame retardant effect in inorganic hydroxide compound system. It could more effectively reduce the heat and smoke release of MDF,improve the fire resistance properties and reduce the dosage of flame retardant.

关 键 词：无机复合阻燃剂 中密度纤维板 锥形量热仪 阻燃性能 氢氧化镁 氢氧化铝 

分 类 号：S782.39[农业科学—木材科学与技术]