摘要概述了吸波材料的背景及研究状况，分析了电磁屏领域的发展趋势。针对当前电磁环境和吸波性能需求，制备出一种以石墨烯为基底的高强度石墨烯/聚苯胺复合材料。首先采用Hummers法制备出氧化石墨，进一步超声分散得到氧化石墨烯，并用TEM进行表征。利用原位氧化聚合方法制备氧化石墨烯/聚苯胺复合材料，再经还原得到石墨烯/聚苯胺，制备出低密度、高强度、具有良好吸波性能的吸波材料，利用扫描电镜观察其微观表面结构，并测试其电导率，利用三毫米波衰减测试仪测试其电磁波吸收性能。最终，电导率可达到4.29s/cm，电磁波衰减量达到13.14dB。同时也尝试了不同掺杂酸的研究，以月桂酸掺杂制备的复合物也具有较好的电磁波吸收效果。43303

关键词  吸波材料  电磁屏蔽  氧化石墨烯  聚苯胺  电导率

毕业论文设计说明书外文摘要

Title  Synthesis and performance of graphene oxide-conducting   polymer composites                    

Abstract

The background and research status of absorbing materials are summarized, and the development trend in the field of electromagnetic screen is analyzed. Graphene oxide was prepared by Hummers method and characterized by TEM. By in situ oxidation polymerization method, the graphene oxide-polyaniline composites were prepared with a low density, high strength, good absorption performance of wave absorbing materials, using scanning electron microscope to observe the micro surface structure, and test its electric conductivity, and using three millimeter wave attenuation tester test the electromagnetic wave absorption properties. Finally, the electrical conductivity can reach 0.2646s/cm, the electromagnetic wave attenuation to reach 10.06dB. At the same time, the research of different doping acid was also tried, and the compound prepared by doping of the mixed acid of laurel acid also had better electromagnetic wave absorption effect.

Keywords  Wave absorbing material   Graphene oxide   Polyaniline   Conductivity

目   次

1  引言 1

1.1  背景介绍 1

1.2  吸波材料概述 2

1.2.1  吸波机理 2

1.2.2  吸波材料分类 3

1.3  石墨烯及其复合材料 4

1.4  氧化石墨烯及其复合材料 5

1.5  导电高分子 5

1.6本论文的研究目的及研究内容 6

2  实验 8

2.1  试剂及仪器 8

2.2  实验过程 9

2.2.1  氧化石墨的制备 9

2.2.2  GO/PANI制备 9

2.2.3  RGO/PANI的制备 10

2.3  产物表征与测试 10

2.3.1  透射电子显微镜（TEM）分析 10

2.3.2  扫描电子显微镜（SEM）分析 10

2.3.3  热重（TG）分析 11

2.3.4  红外光谱（FTIR）分析 11

2.3.5  电导率测试 11

2.3.6  吸波性能测试