文献类型：期刊文献

中文题名：CeO_2对氟硅橡胶耐热性能的影响

英文题名：Effects of CeO_2 on heat resistant performance of fluorosilicone rubber

作者：管涌[1];刘俊杰[1];郑安呐[1];许祥[1];陈培[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2016

卷号：33

期号：3

起止页码：564

中文期刊名：复合材料学报

外文期刊名：Acta Materiae Compositae Sinica

收录：CSTPCD;;EI(收录号：20161602274945);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金(51573034)

语种：中文

中文关键词：氟硅橡胶;CeO2;复合材料;KH570;表面改性;耐热性能

外文关键词：fluorosilicone rubber; CeO2; composites; KH570; surface modified; heat resistance performance

摘要：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。
One dimensional nanoscale CeO2 was prepared,and its specific surface area is larger than that of commercial available CeO2 according to the analysis of scanning electron microscope.In order to prevent the aggregation of CeO2 in fluorosilicone rubber（FSR）,KH570 was used to modify the surface of CeO2.Infrared spectrum,thermo-gravimetric and lipophilic degree test were employed to characterize the modification effect.The optimized modification conditions were obtained via orthogonal tests.The unmodified and modified CeO2,as the heat resistant agents,were respectively added into FSR.CeO2/FSR composites show remarkable heat resistance effects.Compared with the blank control,the tensile strength of CeO2/FSR composites increases by 48%,and breaking elongation increases by 36%.Meanwhile,the modified CeO2 could be well dispersed in FSR and has less effect on the virgin performance of FSR.