
聚醚醚酮/多壁碳纳米管复合材料的电磁屏蔽与导电性能研究
高娟, 徐绍娟
聚醚醚酮/多壁碳纳米管复合材料的电磁屏蔽与导电性能研究
Study on the Electromagnetic Shielding and Conductivity of Polyetheretherketone/Multi-Walled Carbon Nanotubes Composites
研究旨在探究碳纳米管对聚醚醚酮(PEEK)的电磁屏蔽和导电性能的影响。使用溴化十六烷基三甲铵(CTAB)为分散剂制备了改性的多壁碳纳米管(mMWCNT),通过湿法混合与挤出共混的加工技术制备了PEEK/mMWCNT复合材料。结果表明:mMWCNT在PEEK基体中分散良好,这对提高复合材料的力学性能和导电性能提供了有力支持。当mMWCNT质量分数低于2.0%时,PEEK/mMWCNT复合材料的力学性能提升明显。mMWCNT在PEEK中形成了导电性良好的3D网络。在电磁屏蔽性能方面,PEEK/mMWCNT复合材料的电磁屏蔽总效能介于3.35~24.47 dB之间,表明该复合材料对X波段电磁波具有良好的吸收性。研究证实了PEEK/mMWCNT复合材料具有优越导电和电磁屏蔽性能,因此该复合材料在电子设备、通信技术和军事防护等领域具有广泛应用潜力。
The aim of this study is to investigate the effect of carbon nanotubes on the electromagnetic shielding and electrical conductivity of polyetheretherketone(PEEK). The modified multi-walled carbon nanotubes (mMWCNT) was prepared using cetyltrimethylammonium bromide (CTAB) as a dispersing agent. The PEEK/mMWCNT composits were prepared by the processing technology of wet mixing and extrusion blending. The results showed that the mMWCNT were well-dispersed in PEEK matrix, which provided strong support for improving the mechanical and electrical properties of the composites. When the mMWCNT mass fraction was lower than 2.0%, the mechanical properties of PEEK/mMWCNT composites were significantly improved. The mMWCNT formed a 3D network with good conductivity in PEEK. In terms of electromagnetic shielding performance, the total electromagnetic shielding efficiency of PEEK/mMWCNT composites ranged from3.35 dB to 24.47 dB, which indicated a good absorption of X-band electromagnetic waves. This study confirmed that PEEK/mMWCNT composites have superior electrical conductivity and electromagnetic shielding properties. Hence, the composites have a wide application potential in electronic equipment, communication technology and military protection.
多壁碳纳米管 / 改性 / 聚醚醚酮 / 导电性能 / 电磁屏蔽
Multi-walled carbon nanotube / Modification / Polyetheretherketone / Electrical conductivity / Electromagnetic shielding
TB332
1 |
李萌崛,陈德平,陈营,等.流道特征尺寸对PP/MWCNTs电磁屏蔽效能的影响研究[J].塑料科技,2022,50(5):71-75.
|
2 |
虞东霖,邹华,宁南英.硅橡胶基高导电复合材料的制备及其性能研究[J].橡胶工业,2023,70(7):483-489.
|
3 |
|
4 |
|
5 |
|
6 |
文周,刘梦,唐先军,等.加工工艺参数对PEEK材料拉伸强度及结构稳定性的影响[J].塑料工业,2021,49(12):76-81.
|
7 |
谢金梦,逄显娟,黄素玲,等.碳纤维改性PEEK复合材料摩擦学性能及其应用研究进展[J].化工新型材料,2023,51(10):1-7.
|
8 |
任天翔,滕晓波,黄兴,等.聚醚醚酮的改性及应用研究进展[J].塑料科技,2022,50(9):123-128.
|
9 |
|
10 |
林欢,张建伦,寇爱静,等.PEEK基底上厚度为6.4 nm的金薄膜导热导电性能研究[J].中国材料进展,2020,39(5):379-384.
|
11 |
扶肖肖,宋桂珍,郭晓君,等.PEEK基耐磨导电复合材料[J].工程塑料应用,2020,48(2):1-5.
|
12 |
|
13 |
|
14 |
吴同华,岳喜贵,梅笑寒,等.三明治结构多壁碳纳米管/聚醚醚酮电磁屏蔽复合材料的制备[J].高等学校化学学报,2021,42(8):2627-2634.
|
15 |
|
16 |
|
17 |
|
18 |
|
19 |
|
20 |
|
21 |
|
22 |
万武波,李雨,谭涛,等.改性玻璃纤维膜的制备及其油水分离性能研究[J].中国石油和化工标准与质量,2023,43(23):116-118.
|
23 |
|
24 |
|
25 |
|
26 |
|
27 |
|
28 |
|
29 |
|
30 |
|
31 |
|
32 |
|
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|
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