铝-水反应制氢副产物AlO(OH)的回收及阻燃利用  

Recovery and Flame Retardant Utilization of AlO(OH)from Hydrogen Production by Al/H_(2)O Reaction

作　　者：张建斌[1] 张宝东 徐建林[1] ZHANG Jianbin;ZHANG Baodong;XU Jianlin(State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,兰州730050

出　　处：《西安工业大学学报》2024年第4期405-412,F0002,共9页Journal of Xi’an Technological University

基　　金：国家自然科学基金项目(51761025)。

摘　　要：针对制氢用活性铝合金水解产物中除气态H 2外,还有固态副产物AlO(OH)等的回收和再利用问题。以自制AlO(OH)阻燃添加剂,与聚丙烯(PP)熔融共混制备AlO(OH)/PP复合材料。采用极限氧指数测定仪、热重分析仪、差示扫描量热仪对AlO(OH)/PP复合材料的阻燃性能、热稳定性和结晶行为进行研究。结果表明:随着AlO(OH)从0增加到25%,极限氧指数(LOI)和热稳定性提升,熔滴的滴落得到抑制。AlO(OH)为25%时复合材料的LOI较纯PP提升了29.2%,复合材料结晶峰值温度增加、结晶度下降,自制AlO(OH)具有阻燃效果。The study focuses on the recycling and reuse of solid by-products in addition to gaseous H_(2)in the hydrolysis products of activated aluminium alloys for hydrogen production.A home-made AlO(OH)flame retardant was melt-blended with polypropylene(PP)to produce AlO(OH)/PP composites.Their flame retardancy,thermal stability and crystallisation behaviour were investigated with a limiting oxygen index tester,a thermogravimetric analyzer and a differential scanning calorimeter.The results show that as the mass percentage of AlO(OH)increases from zero to 25%,the limiting oxygen index(LOI)and thermal stability increase and the dropping of molten drops is suppressed.The LOI of the composites at 25%AlO(OH)is improved by 29.2%compared to pure PP,and the peak crystallization temperature of the composites increase and the crystallinity decreases,suggesting that the home-made AlO(OH)performs well as a flame retardant.

关 键 词：AlO(OH) 聚丙烯 阻燃 热稳定性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]