纳米硼酸镧/聚苯乙烯复合材料制备及阻燃性能研究  

Preparation and flame-retardant properties of nano lanthanum borate LaBO_3/polystyrene composite

作　　者：高平强[1] 张岩[1] 卢翠英[1] 

机构地区：[1]榆林学院化学与化工学院,陕西榆林719000

出　　处：《应用化工》2017年第4期698-700,705,共4页Applied Chemical Industry

基　　金：国家青年基金(51502261);榆林学院博士科研启动基金项目(16GK02)

摘　　要：采用原位聚合的方法将纳米硼酸镧与聚苯乙烯进行复合,制备纳米硼酸镧/聚苯乙烯复合材料。采用X射线衍射、红外光谱、扫描电子显微镜、热重分析和氧指数分析仪分析手段对产品的晶体组成、微观结构、阻燃性能和热稳定性进行表征。研究表明,纳米硼酸镧/聚苯乙烯复合材料具有表面均一、致密的表面结构,热稳定性明显提高,纳米硼酸镧添加量7%时,复合材料氧指数达到最大值32.5,聚苯乙烯阻燃性能显著增强。Nano lanthanum borate LaBO3 and polystyrene were used to prepare nano lanthanum borate La- BO3/polystyrene composite through in situ polymerization reaction. The obtained samples were character- ized by X-Ray powder diffraction （XRD） , Fourier transform infrared spectroscopy （FTIR） , Field-emis- sion scanning electronic microscope （FESEM）, thermo gravimetry analysis（TGA）and Limited oxygen in- dex （LOI） test. The results showed that the nanoeomposite was uniform ; the thermal stability of the poly- styrene was significantly improved. When adding amount was 7% , the oxygen index of the nanomaterial would be up to 32.5, indicating that the composite had excellent flame retardant properties.

关 键 词：聚苯乙烯 纳米硼酸镧 原位合成法 阻燃性能 

分 类 号：TQ175[化学工程—硅酸盐工业]