Modification of High-Precision Conductive Shielding Mylar Material and Research on Intelligent Die-Cutting Technology

Quanzhen Ding
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Quanzhen Ding: WQKX (Wanqi Qianxiao), Beijing 100002, China

Journal of Progress in Engineering and Physical Science, 2025, vol. 4, issue 5, 16-21

Abstract: With the rapid development of 5G communication and electronic devices in new energy vehicles, the demand for high-precision conductive shielding Mylar materials is increasing. This study successfully developed conductive shielding Mylar materials with a shielding effectiveness of 45–50 dB by modifying PET substrates using a vacuum sputtering-electroplating composite process, which is significantly higher than that of domestic counterparts (typically below 35 dB) and comparable to high-end imported materials. The adhesion test results showed that the modified material achieved a 4B level in the cross-cut test, with no detachment after 3M tape adhesion, indicating excellent adhesion. Additionally, the modified material exhibited good weather resistance, with a color difference (ΔE) of only 1.2 after 1000 hours of UVB-313 lamp irradiation.

Keywords: conductive shielding Mylar material; vacuum sputtering-electroplating composite process; intelligent die-cutting technology; shielding effectiveness; adhesion; weather resistance; die-cutting precision; yield rate; 5G communication; new energy vehicles; electromagnetic interference protection; material modification; high-precision die-cutting; application verification; industrial application (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:cvg:jpepsc:v:4:y:2025:i:5:p:16-21

DOI: 10.56397/JPEPS.2025.10.03

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