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| 石墨烯/碳纤维/芳纶电磁屏蔽纸的制备与性能研究 |
| Preparation and Properties of Graphene/Carbon Fiber/Aramid Electromagnetic Shielding Paper |
| 收稿日期：2024-01-11 |
| DOI：10.11980/j.issn.0254-508X.2024.05.010 |
| 关键词: 电磁屏蔽 碳纤维 石墨烯 芳纶纤维 纸基复合材料 |
| Key Words:electromagnetic shielding carbon fiber graphene aramid fibers paper matrix composites |
| 基金项目:国家重点研发计划（2018YFC1902102）；广东省自然科学基金（2021A1515010538）；制浆造纸国家重点实验室项目（2020ZD02）。 |
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| 摘要:本研究以耐高温的芳纶短切纤维和芳纶沉析纤维为纸基纤维材料，导电性优良的碳纤维为导电骨架，石墨烯为电磁屏蔽增强材料，结合抄纸和涂布工艺制备得到石墨烯/碳纤维/芳纶电磁屏蔽纸。结果表明，制备的石墨烯/碳纤维/芳纶电磁屏蔽纸具有“三明治结构”，其厚度为333.9 μm时，在X波段的电磁屏蔽效能SET高达70.3 dB，电导率高达1 685 S/m，兼有较好的耐高温性和耐腐蚀性。 |
| Abstract:In this paper， graphene/carbon fiber/aramid electromagnetic shielding paper was prepared by combining high-temperature resistant aramid chopped fiber and aramid precipitation fiber as paper-based materials， carbon fiber with excellent conductivity as conductive skeleton， and graphene as electromagnetic shielding reinforcement material. The results showed that the prepared graphene/carbon fiber/aramid electromagnetic shielding paper had a “sandwich structure”. With a thickness of 333.9 μm， the electromagnetic shielding efficiency in X-band was up to 70.3 dB， and the conductivity of 1 685 S/m， and excellent high-temperature resistance and corrosion resistance. |
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