磁功能化石墨烯改性环氧树脂及其复合材料的性能

doi:10.11901/1005.3093.2021.605

材料研究学报

2022, Vol. 36

Issue (12): 881-886 DOI: 10.11901/1005.3093.2021.605

研究论文

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磁功能化石墨烯改性环氧树脂及其复合材料的性能

曾强¹, 王荣超¹, 刘绮¹, 彭化南¹, 陈平²(

)

^1.上饶师范学院化学与环境科学学院上饶 334001
^2.大连理工大学化工学院三束材料改性教育部重点实验室大连 116024

Properties of Epoxy Resin Based Composite Incorporated with Magnetically Functionalized Reduction Graphene Oxide

ZENG Qiang¹, WANG Rongchao¹, LIU Qi¹, PENG Huanan¹, CHEN Ping²(

)

^1.School of Chemistry and Environmental Science, Shangrao Normal University, Shangrao 334001, China
^2.Key Laboratory of Materials Modification by Laser, Ion and Electron Beams of Ministry of Education ＆ School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China

引用本文:

曾强, 王荣超, 刘绮, 彭化南, 陈平. 磁功能化石墨烯改性环氧树脂及其复合材料的性能[J]. 材料研究学报, 2022, 36(12): 881-886.
Qiang ZENG, Rongchao WANG, Qi LIU, Huanan PENG, Ping CHEN. Properties of Epoxy Resin Based Composite Incorporated with Magnetically Functionalized Reduction Graphene Oxide[J]. Chinese Journal of Materials Research, 2022, 36(12): 881-886.

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摘要:

先以氧化石墨烯和三氯化铁为原料并用高温水热法制备还原氧化石墨烯/ Fe₃O₄(rGO/Fe₃O₄)复合物，再用其改性环氧树脂制备出rGO/Fe₃O₄/环氧树脂复合材料，研究了(rGO/Fe₃O₄)复合物的添加对其性能的影响。结果表明，(rGO/Fe₃O₄)复合物的添加量为30%的复合材料其冲击强度达到27 kJ/m²，比纯环氧树脂的冲击强度提高了58.8%。在环氧树脂中添加rGO/Fe₃O₄复合物，使其吸波性能显著提高。rGO/Fe₃O₄复合物的添加量为20%的复合材料，其反射率在小于-10 dB的频率范围为7.7~12.3 GHz，有效吸收频宽达4.6 GHz，覆盖了整个X波段。随着石墨烯含量的提高rGO/Fe₃O₄/环氧树脂复合材料达到最小反射率的位置向低频位置移动，控制rGO和Fe₃O₄的相对含量可调控这种复合材料的吸波性能。

关键词 ：复合材料, 还原氧化石墨烯, Fe₃O₄, 改性, 电磁吸波性能

Abstract：

The magnetic functionalized rGO/Fe₃O₄ was prepared by hydrothermal method with graphene oxide and ferric chloride as raw materials, and subsequently rGO/Fe₃O₄ particles were blend in epoxy resin to prepared composite rGO/Fe3O4/epoxy resin. The results show that the impact strength of rGO/Fe₃O₄/epoxy resin composites reaches 27 kJ/m² when the addition amount of rGO/Fe₃O₄is 30%, which is 58.8% higher than that of the plain epoxy resin. In addition, the absorption performance of epoxy resin composite is significantly enhanced after the addition of rGO/Fe₃O₄. When the addition of rGO/Fe₃O₄ is 20%, the reflection loss of the rGO/Fe₃O₄/epoxy resin composite is less than -10 dB in the frequency range of 7.7~12.3 GHz. The effective absorption bandwidth (reflection loss<-10 dB) is up to 4.6 GHz, which covering the whole X-band. With the increase of graphene content, the position of the minimum reflection loss of rGO/Fe₃O₄/epoxy resin composites moves towards low-frequencies. It follows that by controlling the relative content of rGO and Fe₃O₄, the absorbing performance of rGO/Fe₃O₄/epoxy resin composites can be adjusted to the meet the requirements for materials of desired absorbing performance.

Key words： composite reduced graphene oxide ferric oxide modification electromagnetic absorption properties

收稿日期: 2021-10-28

ZTFLH:

TB332

基金资助:国家自然科学基金(62065016);江西省教育厅科学技术研究项目(GJJ180886);上饶师范学院校级自选课题(201904);上饶师范学院大学生创新创业训练计划(2019-CX-20);三束材料改性教育部重点实验室基金(KF2004)

作者简介: 曾强，男，1989生，博士

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https://www.cjmr.org/CN/10.11901/1005.3093.2021.605 或 https://www.cjmr.org/CN/Y2022/V36/I12/881

图1 GO和rGO/ Fe3O4复合物的XRD谱

图2 S30样品的 XPS Fe2p 分峰图

图3 rGO/Fe3O4复合物的SEM照片

图4 rGO/Fe3O4/环氧树脂复合材料的冲击强度

图5 S30不同含量复合材料的反射率

表1 S30含量不同的复合材料的吸波性能

图6 添加S0、S10、S30、S50、S70的环氧树脂复合材料的反射率

表2 添加有S0、S10、S30、S50、S70的环氧树脂复合材料吸波性能

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