Electric Field Driven Hybrid Micro and Nano 3D Printing of Low Frequency Transparent Electromagnetic Shielding Glass

doi:10.3901/JME.2024.03.305

Abstract

Abstract: In order to solve the challenging problem of large-area high-performance low-frequency transparent electromagnetic shielding glass that is difficult to be manufactured in batch at low cost, a new additive manufacturing method based on electric field-driven micro-jet and electroplating composite is proposed for the preparation of silver-nickel composite metal mesh low-frequency transparent electromagnetic shielding glass, and the basic principle and process flow of preparing silver-nickel composite metal mesh are described; the influence of the main process parameters (printing voltage, printing speed, printing air pressure, printing height, current density, plating time) on the electrical and optical properties of the prepared silver-nickel composite metal grids was revealed through experiments; and with the optimized process parameters, the silver-nickel composite metal grid transparent electromagnetic shielding glass with 10 μm line width, 0.76 Ω/sq square resistance, 90.2 % grid transmittance, and shielding efficiency greater than 40 dB in the low frequency band (10 kHz-30 MHz) has been prepared, and the adhesion between the composite metal grid and the substrate is 5B. It provides a new solution for the mass production of high performance low frequency transparent electromagnetic shielding glass.

Key words: transparent electromagnetic shielding, micro and nano 3D printing, composite metal grids, electric field driven jetting, micro plating

CLC Number:

TG156

TAI Yuping, ZHU Xiaoyang, LI Hongke, YU Zhihao, ZHANG Houchao, ZHANG Fan, ZHANG Guangming, ZHAO Juan, ZHAO Jiawei, HUANG Youqi, LAN Hongbo. Electric Field Driven Hybrid Micro and Nano 3D Printing of Low Frequency Transparent Electromagnetic Shielding Glass[J]. Journal of Mechanical Engineering, 2024, 60(3): 305-318.

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