纳米氧化铝基复合水溶胶的合成及其灭火、阻隔性能研究  

Synthesis of Nano-Alumina Based Composite Hydrosol and Fire Extinguishing and Barrier Performances

作　　者：杜卫宁 颜明强 李平立 商翔 Du Weining;Yan Mingqiang;Li Pingli;Shang Xiang(Sichuan Fire Research Institute of Ministry of Emergency Management,Chengdu 610036,China;Key Laboratory of Leather Chemistry and Engineering of Ministry of Education,Sichuan University,Chengdu 610065,China)

机构地区：[1]应急管理部四川消防研究所,四川成都610036 [2]四川大学皮革化学与工程教育部重点实验室,四川成都610065

出　　处：《山东化工》2023年第8期225-227,共3页Shandong Chemical Industry

基　　金：应急管理部四川消防研究所基本科研业务费(20218807Z);四川省科技计划项目(2021YJ0336)。

摘　　要：以氧化铝水溶胶(Als)、3-氨丙基三乙氧基硅烷改性聚磷酸铵(mAPP)为主要原料,采用水解缩合法合成了改性聚磷酸铵@氧化铝复合水溶胶(mAPP@Als),并研究了其组分结构、灭A类火性能和阻隔性能。研究结果表明,所合成mAPP@Als中的mAPP与Als通过共价键键连,且含有铝、磷、氮阻燃元素;所合成的mAPP@Als水溶胶能够达到GB 17835—2008灭A类火性能要求(1A),浸涂mAPP@Als水溶胶木材的极限氧指数可达31.6%,木板表面的炭层致密均匀,且产烟、产热明显下降。Modified ammonium polyphosphate@alumina composite hydrosol(mAPP@Als)was synthesized with alumina hydrosol(Als)and 3-aminopropyl triethoxysilane modified ammonium polyphosphate through hydrolysis-condensation method.The component structure of the prepared sample was studied,and then the class A fire extinguishing and wood fire resistance experiments were conducted.It was found that the modified ammonium polyphosphate component of mAPP@Als was covalently bonded with alumina hydrosol component.Moreover,the prepared mAPP@Als containing aluminum,phosphorus,and nitrogen flame retardant elements.Furthermore,the synthesized mAPP@Als hydrosol can satisfy the GB 17835-2008 standard(1A).The limiting oxygen index of mAPP@Als hydrosol coated wood can reach 31.6%.The combustion residues on the wood surface was dense and uniform,and the smoke and heat productions were significantly restrained.

关 键 词：纳米氧化铝 复合水溶胶 水系灭火剂 灭火 阻隔 

分 类 号：TQ31[化学工程—高聚物工业]