制备了一维纳米尺度的CeO2,扫描电镜分析表明其比表面积比市售CeO2大.为防止其在氟硅橡胶(FSR)中团聚,利用KH570对其进行了表面改性,通过红外光谱、热失重以及亲油度测定等表征了改性效果,并通过正交试验法确定了最优化改性条件.把改性前后的CeO2作为耐热剂分别添加到FSR中,CeO2/FSR复合材料均显示出了显著的耐热效果,与空白样相比,CeO2/FSR复合材料拉伸强度提高了48％,拉断伸长率提高了36％.同时,改性后的CeO2在FSR中具有良好的分散性,从而对FSR原始性能影响较小.
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