a.National Engineering Research Center of Novel Equipment for Polymer Processing; Key Laboratory of Polymer Processing Engineering, Ministry of Education; Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing; School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China
b.School of Advanced Manufacturing Technology, Guangdong Mechanical & Electrical Polytechnic, Guangzhou 510550, China
mehuangzx@scut.edu.cn
纸质出版日期:2024-07-01,
网络出版日期:2024-04-25,
收稿日期:2024-01-28,
修回日期:2024-03-27,
录用日期:2024-03-07
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Huang, Y. Z.; Liu, X. X.; Li, L. W.; Huang, G. M.; Huang, Z. X.; Qu, J. P. Cyclic pulsating pressure enhanced segregating structuration of ultra-high molecular weight polyethylene/graphene composites as high-performance light-weight EMI shields. Chinese J. Polym. Sci. 2024, 42, 958–967
Yun-Zhi Huang, Xiao-Xiao Liu, Lan-Wei Li, et al. Cyclic Pulsating Pressure Enhanced Segregating Structuration of Ultra-High Molecular Weight Polyethylene/Graphene Composites as High-performance Light-Weight EMI Shields[J]. Chinese Journal of Polymer Science, 2024,42(7):958-967.
Huang, Y. Z.; Liu, X. X.; Li, L. W.; Huang, G. M.; Huang, Z. X.; Qu, J. P. Cyclic pulsating pressure enhanced segregating structuration of ultra-high molecular weight polyethylene/graphene composites as high-performance light-weight EMI shields. Chinese J. Polym. Sci. 2024, 42, 958–967 DOI: 10.1007/s10118-024-3122-8.
Yun-Zhi Huang, Xiao-Xiao Liu, Lan-Wei Li, et al. Cyclic Pulsating Pressure Enhanced Segregating Structuration of Ultra-High Molecular Weight Polyethylene/Graphene Composites as High-performance Light-Weight EMI Shields[J]. Chinese Journal of Polymer Science, 2024,42(7):958-967. DOI: 10.1007/s10118-024-3122-8.
We reported a novel technique named as cyclic pulsating pressure enhanced segregating structuration (CPP-SS). CPP-SS can reinforce electrical conductivity (σ) for stronger electromagnetic (EM) reflections or tailoring structure for higher EM resonances. The intrinsic disadvantage of poor mechanical properties of conventional segregated structure composites can be surpassed by CPP-SS. CPP-SS bring us a simple and efficient approach for fabricating high-performance
strong and light-weight polymeric EMI shields.
Currently
the enhancement in electromagnetic interference (EMI) performance of polymeric composite generally relies on either improving electrical conductivity (
σ
) for stronger electromagnetic (EM) reflections or tailoring structure for higher EM resonances. Herein
we proposed a novel technique called cyclic pulsating pressure enhanced segregating structuration (CPP-SS)
which can reinforce these two factors simultaneously. The structural information was supplied by optical microscopy (OM) and scanning electron microscopy (SEM)
both of which confirmed the formation and evolution of segregate structured ultra-high molecular weight polyethylene (UHMWPE)/graphene composites. Then
the result showed that CPP-SS can significantly improve the
σ
of samples. Ultimately
advanced specific EMI shielding efficiency of 31.1 dB/mm was achieved for UHMWPE/graphene composite at 1-mm thickness and a low graphene loading of 5 wt%. Meanwhile
it also confirmed that the intrinsic disadvantage of poor mechanical properties of conventional segregated structure composites can be surpassed. This work is believed to provide a fundamental understanding of the structural and performance evolutions of segregated structured composites prepared under CPP-SS
and to bring us a simple and efficient approach for fabricating high-performance
strong and light-weight polymeric EMI shields.
Cyclic pulsating pressureSegregated structureUltra-high molecular weight polyethyleneGrapheneElectromagnetic interface
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