以分散聚合法制备的聚苯乙烯(PS)微球作为模板,通过均相沉淀法制备前驱体PS-Gd(OH) CO3复合微球,高温煅烧后得到Gd2O3空心微球,将其与丁基橡胶复合制备低频高阻尼Gd2O3/丁基橡胶复合材料.采用FTIR、SEM、TEM分析、TG分析仪、XRD分析和XPS对Gd2O3空心微球的形貌与结构组成进行表征.将Gd2O3空心微球与粉体分别作为填料加入丁基橡胶中制备Gd2O3/丁基橡胶复合材料.结果表明:Gd2O3空心微球由立方萤石结构的颗粒组成,外空心直径为0.9 μm,壳层厚度约为100 nm;添加空心微球的复合材料阻尼性能较好;与纯丁基橡胶相比,Gd2O3/丁基橡胶复合材料的低频阻尼性能明显提高.
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