中文摘要：

在室温条件下以聚苯乙烯（PS）和氢氧化镁为原料,聚乙二醇（PEG）为稳定剂和分散剂,在二甲苯的反应介质中,制得聚苯乙烯/氢氧化镁粉末复合材料.利用X射线粉末衍射（XRD）、傅里叶变换红外光谱（FT-IR）、扫描电镜（SEM）、热重（TG-DTA）等手段对产物的物相、形貌、粒径、热稳定性进行了表征,并对其分散性进行研究.结果表明,在氢氧化镁表面存在PS的有机包覆层,样品分散性良好.

英文摘要：

Polystyrene （PS）/magnesium hydroxide （ Mg （ OH ）2） composite materials were pre- pared using polystyrene （PS） and magnesium hydroxide（Mg（OH）2） as raw materials and polye- thylene glycol （PEG） as stabilizer and dispersing agent in xylene solvent by mixing at room temperature.The phase, morphology and particle size of the products were characterized by XRD,SEM,FT-IR and TG-DTA.The results showed that the Mg（OH）2 nanoparticles has been coated with PS,and the sample was of good disoersibility.