《复合材料学报》优先在线发表论文。
摘 要:为改善氧化石墨烯/Fe3O4复合材料(GO/Fe3O4)的分散程度,利用三苯基膦(PPh3)对氧化石墨烯(GO)表面进行功能化改性得到改性氧化石墨烯(GOP),然后采用共沉淀法一步合成GOP/Fe3O4复合材料。通过场发射SEM、高分辨TEM、XRD、FTIR、Raman和VSM对GOP/Fe3O4的形貌、结构和磁性能进行表征。利用PNA测试了GOP/Fe3O4的电磁参数并模拟计算其对电磁波的吸收性能。结果显示:GOP/Fe3O4的最大电磁波吸收强度值达到-25.4 dB,有效吸收频宽为6.0 GHz,较未改性GO/Fe3O4均有大幅度提高。
关键词:氧化石墨烯;Fe3O4;改性;复合材料;电磁吸收
Abstract: In order to improve the dispersion degree of graphene oxide/Fe3O4 composites, modified graphene oxide (GOP) was obtained by functional modification of graphene oxide (GO) surface with PPh3. GOP/Fe3O4 was synthesized in one step by coprecipitation method. The morphologies, structures and magnetic properties of GOP/Fe3O4 composites were characterized by SEM, TEM, XRD, FTIR, Raman and VSM. The electromagnetic parameters of the GOP/Fe3O4 were measured by PNA, and the electromagnetic wave absorption properties of GOP/Fe3O4 was simulated. The results show that the maximum absorption peak value of GOP/Fe3O4 is -25.4 dB and the maximum absorption bandwidth is 6.0 GHz, which is greatly improved compared with the unmodified GO/Fe3O4.
Keywords: graphene oxide; Fe3O4; modification; composites; electromagnetic absorbing
作者:奚洪亮等,山东欧铂新材料有限公司,东营
通讯作者:赵永彬,山东欧铂新材料有限公司,东营
全文详见中国知网学术期刊优先数字出版。
来源:CSCM_OFFICE 中国复合材料学会
原文链接:http://mp.weixin.qq.com/s?__biz=MjM5MTA2NTk1Nw==&mid=2654407403&idx=3&sn=f86bf33aab536880e12f157ff5a81765&scene=0#wechat_redirect
版权声明:除非特别注明,本站所载内容来源于互联网、微信公众号等公开渠道,不代表本站观点,仅供参考、交流、公益传播之目的。转载的稿件版权归原作者或机构所有,如有侵权,请联系删除。
电话:(010)86409582
邮箱:kejie@scimall.org.cn