Study on electromagnetic shielding and electrically conductive performance of polyphosphazene/carbon nanotubes composites

doi:10.19491/j.issn.1001-9278.2025.02.005

Abstract

Abstract:

Polyphosphazene/carbon nanotubes （SWNTs） composites were prepared by using a solution⁃blending method. SWNTs were randomly distributed on the polyphosphazene matrix to form a conductive phase. The structure and properties of the as⁃prepared composites were characterized by using Fourier⁃transform infrared spectrometer， scanning electron microscope， thermogravimetric analyzer， electrical conductivity tester， and vector network analyzer. The results indicated that the electromagnetic shielding effectiveness and electrical conductivity of polyphosphazene/carbon nanotubes composites were related to the loading of carbon nanotubes in the matrix. The electromagnetic shielding effectiveness of the composites reached 60.9 dB at a SWNTs content of 15 wt%， its average electrical conductivity reached 0.989 4 S/cm， and its residual char yield was 35.66 wt% at 700 ℃.

Key words: polyphosphazene, carbon nanotube, electromagnetic shielding, electrical conductivity

CLC Number:

TQ325

ZHANG Xiaoguang, WEI Tianqi, CUI Zhe, MAO Mingzhen, LI Hansheng, WANG Bozhou, WU Qin. Study on electromagnetic shielding and electrically conductive performance of polyphosphazene/carbon nanotubes composites[J]. China Plastics, 2025, 39(2): 21-25.

Figures/Tables 7

Fig.1. Chemical structure of JLJ

Fig.2. Fabrication process of the polyphosphazene/SWNTs composites

Fig.3. SEM images of the samples

Fig.4. FTIR spectra of the samples

Fig.5. TG curves of the samples

Fig.6. Electrical conductivity of the JLJ⁃SWNTs composites

Fig.7. Electromagnetic shielding efficiency curves of the JLJ⁃SWNTs composites

References 19

1	吴宜峰，张啸天，王浩，等.支座用石墨烯/导电炭黑橡胶材料的制备与性能［J］. 东南大学学报（自然科学版）， 2024，54（01）：44⁃49.
	WU Y F， ZHANG X T， WANG H，et al. Preparation and performance of graphene/conductive carbon black compounded rubber material for bearings［J］. Journal of Southeast University：Natural Science Edition， 2024，54（01）：44⁃49.
2	Deepak S， Ranvijai R， Dipak K. Electrical conductivity and dynamic mechanical properties of silicon rubber⁃based conducting composites： Effect of cyclic deformation， pressure and temperature［J］.Polymer International，2017，66（9）：1 295⁃1 305.
3	李雪雨，温彦威，陆少杰，等. 导电橡胶复合材料研究进展［J］.合成橡胶工业，2022，45（4）：331⁃335.
	LI X Y， WEN Y W， LU S J，et al. Progress in conductive rubber composite materials［J］.China Synthetic Rubber Industry， 2022，45（4）：331⁃335.
4	万帮伟，杨洋. 硅橡胶/多壁碳纳米管复合材料应变感知性能研究［J］.中国塑料， 2024， 38（2）： 1⁃6.
	WAN B W， YANG Y. Strain sensing properties of silicone rubber/multi⁃walled carbon nanotubes composite［J］.China Plastic， 2024， 38（2）： 1⁃6.
5	何杉杉，何婷婷，周紫君，等导电共轭聚合物与碳布复合制备高能量密度和功率密度电极［J］.高分子学报，2024，55：1 044⁃1 058.
	HE B B， HE T T， ZHOU Z J，et al. High energy density and power density electrodes prepared by conductive conjugated polymers and carbon cloth［J］.Acta Polymerica Sinica，2024，55：1 044⁃1 058.
6	KUMAR R， SAHOO S， JOANNI E， et al. Recent progress on carbon⁃based composite materials for microwave electromagnetic interference shielding［J］.Carbon，2021（177）：304⁃331.
7	文雯，白振岳，赵航. 导电橡胶条对机箱屏蔽效能的影响［J］. 电子测试， 2020（21）：108⁃109.
	WEN W， BAI Z Y， ZHAO H. Effect of conductive rubber strip on shielding effectiveness of chassis［J］. Electronic Test， 2020（21）：108⁃109.
8	JHARRY R. ALLCOCK.Polyphosphazenes： New polymers with inorganic backbone atoms［J］. Science，1976，193（4 259）：1 214⁃1 219．
9	Victor A K， Joshua S M， James S B，et al. Cross⁃linked polyphosphazene blends as robust CO₂ separation membranes［J］. Applied Materials & Interfaces， 2020， 12（27）： 30 787⁃30 795.
10	宝冬梅，刘吉平.聚磷腈材料在航空航天及军工领域的应用研究［J］.中国塑料， 2012， 26（04）： 16⁃21.
	BAO D M， LIU J P. Study on polyphosphazene materials and its application in aviation and military fields［J］. China Plastic， 2012， 26（04）： 16⁃21.
11	张晓光，毛明珍，黎汉生，等. 聚磷腈的合成及应用研究进展［J］. 应用化工， 2021， 50（9）： 2 484⁃2 489.
	ZHANG X G， MAO M Z， LI H S，et al. Research progress on synthesis and application of polyphosphazene ［J］. Applied Chemical Industry， 2021， 50（9）： 2 484⁃2 489.
12	Alter C， Wiesemann M， Neumann B，et al.Tetrafluoroaryl phosphonic acid functionalized polyphosphazenes⁃synthesis， characterization and evaluation of proton conductivity［J］. European Journal of Inorganic Chemistry， 2020，46： 4 401⁃4 408.
13	岳生金，蒲浩，颜春，等.树脂基导电纳米复合材料电磁屏蔽性能的研究进展［J］. 宇航材料工艺，2024，54（1）：23⁃28.
	XUE S J， PU H， YAN C. Research progress in electromagnetic shielding performance of resin matrix conductive nanocomposites［J］. Aerospace Materials Technology，2024，54（1）：23⁃28.
14	侯从聪，安立宝，王惠颖. 功能化碳纳米管/聚合物复合材料的研究进展［J］. 高分子通报，2022（6）：36⁃44.
	HOU C C， AN L B， WANG H Y. Research progress of functionalized carbon nanotubes/polymer composites［J］. Polymer Bulletin，2022（6）：36⁃44.
15	郑玲，邓鑫，焦晓岚，等.水性聚氨酯/石墨烯柔性导电复合材料制备及性能［J］.工程塑料应用， 2022，50（05）：27⁃32.
	ZHEN L，DENG，X， JIAO X F，et al. Preparation and properties of waterborne polyurethane/graphene flexible conductive composites［J］.Engineering Plastics Application， 2022，50（05）：27⁃32.
16	Jin X D， Ni Q Q， Toshiaki N. Composites of multi⁃walled carbon nanotubes and shape memory polyurethane for electromagnetic interference shielding ［J］. Journal of Composite Materials， 2011， 45（24）： 2 547⁃2 554.
17	刘玉洁，杨振华，聂聪，等.聚碳酸酯/聚偏二氟乙烯/多壁碳纳米管/炭黑复合材料联用填料对导电网络的构建及材料电性能的影响研究［J］. 高分子通报，2024，37（01）：105⁃113.
	LIU J Y， YANG Z H， NIE C，et al. The Effect of polycarbonate/poly（vinylidene fluoride）/multi⁃walled carbon nanotubes/carbon black composite co⁃fillers on the construction of conductive networks and the electrical properties of materials［J］. Polymer Bulletin，2024，37（01）：105⁃113.
18	Xu Y D， Yang Y Q， Yan D X， et al. Gradient structure design of flexible waterborne polyurethane conductive films for ultraefficient electromagnetic shielding with low reflection characteristic［J］. ACS Applied Materials & Interfaces，2018，10（22）：19 143⁃19 152.
19	Jia L C， Yan D X， Yang Y C. High strain tolerant EMI shielding using carbon nanotube network stabilized rubber composite［J］.Advanced Materials Technologies，2017，2（7）： 1 700 078⁃1 700 085.

[1]	SUN He, HE Xin, LUO Tongyu, JI Xin, LIAO Qiling, ZHANG Yuxia, ZHOU Hongfu. Study on electromagnetic interference shielding properties of ABS/CNTs/Fe₃O₄ composite and its bimodal foam [J]. China Plastics, 2024, 38(8): 46-52.
[2]	BO Haiwa, ZHAO Zhongguo, WANG Chouxuan, XUE Rong. Structural design and properties of PLA/CNTs conductive composites with high conductivity and low percolation [J]. China Plastics, 2024, 38(4): 13-18.
[3]	WAN Bangwei, YANG Yang. Strain⁃sensing properties of silicone rubber/multi⁃walled carbon nanotubes composites [J]. China Plastics, 2024, 38(2): 1-6.
[4]	SONG Wenlan, SONG Wenxing, LI Bing, WANG Xuan, OUYANG Yuge, ZHANG Peiqi, TIAN Huafeng. Research progress in polypropylene capacitive film materials [J]. China Plastics, 2024, 38(12): 66-71.
[5]	. Research progress of polypropylene capacitive film materials [J]. , 2024, (12): 0-0.
[6]	LI Hang, DU Lingzhi, WU Xiaolin, FENG Qiao, LI Guili. Study on phenolic resin/unsaturated polyester/graphite/composites for bipolar plate [J]. China Plastics, 2024, 38(10): 5-9.
[7]	CHEN Hui, SUN Lingsheng, QIAN Weidong, TAN Bo. Study on properties of PES/CF/CB composites through selective laser sintering [J]. China Plastics, 2023, 37(9): 14-18.
[8]	LI Zhenyin, ZHANG Xiaolin, WEI Cong, SHI Zhiyong, SHAO Chunguang. Effect of pressurization on crystallization behavior of iPP/MWCNTs melts [J]. China Plastics, 2023, 37(10): 117-124.
[9]	DU Qing, HE Yi, YU Tanjing, LAN Yanjiao, ZHAO Yanzhi, ZHOU Juying. Preparation and characterization of oriented thermoplastic polyolefin/PAN/ MWCNT composites [J]. China Plastics, 2022, 36(8): 49-55.
[10]	LI Kaize, XIN Yong. Properties of thermoplastic polyurethane composites modified with carbon nanotubes [J]. China Plastics, 2022, 36(6): 1-5.
[11]	WANG Shuai, ZHANG Yudi, YANG Fukai, XU Xinyu. Preparation and properties of polyimide/multi⁃walled carbon nanotubes composite foams [J]. China Plastics, 2022, 36(6): 39-45.
[12]	LI Mengqi, CHEN Yajun. Research progress in flame⁃retardancy of poly（lactic acid） with nanomaterials [J]. China Plastics, 2022, 36(4): 102-114.
[13]	SONG Renda, WU Gaojian, CHEN Junxiang, ZHANG Youchen, YANG Weimin, XIE Pengcheng. Preparation and its electromagnetic shielding performance of PP/PET/CNTs foaming composites [J]. China Plastics, 2022, 36(2): 1-7.
[14]	LI Bo, GONG Jun, JIN Xueyi, MENG Xiaoyu. Effect of carbon nanotube modification method on properties of polyamide 11 [J]. China Plastics, 2022, 36(2): 61-66.
[15]	SUN Yongtao, LU Daosheng, LIU Lian, ZHANG Hailong, LIU Mingtai. Research progress in applications of fluororubber nanocomposites [J]. China Plastics, 2022, 36(12): 167-174.