采用原住微乳液聚合法制备了PS修饰的凹凸棒粘土(PSAT),红外光谱(FT-IR)、透射电镜(TEM)和热重分析(TGA)结果表明,PS已成功地修饰到AT表面.将所得PSAT与PBT共混制备了PBT/1PSAT复合材料,场发射扫描电镜(FE-SEM)结果表明,复合材料中PSAT含量较低时可得到纳米级的良好分散,且界面相容性较好;而当PS-AT含量较高时,团聚现象出现,复合材料相界面变差.这与复合材料的粘弹性的变化趋势一致,即PSAT的加入可以使复合材料的复数黏度升高以及抗蠕变性能改善,而随着PSAT含量的增加,复数黏度和抗蠕变性能变化不明显.
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