采用二甲基亚砜改性高岭土,然后通过原位聚合的方法制备聚苯乙烯(PS)/插层高岭土复合材料。结果表明:改性高岭土层间距增大,且与PS复合后,高岭土层间距进一步增大,部分高岭土层片状结构被破坏;复合过程中苯乙烯单体能成功地取代二甲基亚砜并在高岭土层间聚合;高岭土的加入提高了PS的热稳定性;复合材料的氧指数和吸水率也有所提高。 Kaolinite was modified with dimethyl sulfoxide and then polystyrene (PS) / intercalated kaolin composites were prepared by in-situ polymerization. The results show that the spacing of modified kaolin layers increases, and when combined with PS, the spacing of kaolin layers is further increased, and some of the kaolin layers are destroyed. During the compounding process, the styrene monomer can successfully replace dimethylsulfoxide Polymerized in the kaolin layer; addition of kaolin increased the thermal stability of PS; oxygen index and water absorption of the composites also increased.