片层状镁铝复合阻燃剂的制备工艺研究  

Preparation technology of lamellar layered magnesium aluminum composite flame retardant

作　　者：章胜超[1] 张旭东[1] 赵永红[1] 张广良[1] 

机构地区：[1]中国日用化学工业研究院山西纳米技术应用工程研究中心,山西太原030001

出　　处：《无机盐工业》2014年第4期29-32,共4页Inorganic Chemicals Industry

基　　金：太原市发明专利转化项目(编号:1211)

摘　　要：通过共沉淀法合成了片层状镁铝复合阻燃剂,采用正交试验研究了反应温度、反应时间、镁离子起始浓度对层间距及生长机制的影响。结果表明,反应温度为85℃,反应时间为1 h,镁离子起始浓度为1.5 mol/L时,得到层间距d(003)达到0.797 89 nm的层状镁铝复合阻燃剂。同时采用透射电镜(TEM)、热重-差热分析(TG-DTA)对最优化产品进行表征。结果显示,产品为片状卷曲结构,分散性好,热分解温度高。Magnesium aluminum hydroxide composite flame retardant was prepared by co-precipitation method.The influences of reaction temperature ,reaction time, and initial concentration of magnesium ions on interlayer distance [d（003 ）- spacing] and growth mechanism were investigated by orthogonal tests.Results showed that when the reaction temperature was 85 ℃, reaction time was 1 h, and concentration of magnesium ions was 1.5 mol/L,the magnesium aluminum composite flame retardant with d（003 ） of 0.797 89 nm was prepared.The product under optimal process was characterized through transmission electron microscopy （TEM） and thermogravimetric-differential thermal analysis （TG-DTA）.Results showed that the product had lamellar curled morphology, good dispersibility, and high thermal decomposition temperature.

关 键 词：镁铝复合阻燃剂 正交试验 层间距 

分 类 号：TQ133.1[化学工程—无机化工]