研究目的
Investigating the impact of modifying the surface of a textile composite substrate using laser processing on the surface resistance of electroconductive structures obtained in the process of physical vapor deposition.
研究成果
Laser modification of the textile composite substrate significantly affects the resistance of deposited silver layers, with optimal parameters identified for minimal resistance. This method offers a precise and environmentally friendly alternative to traditional substrate pretreatments for wearable electronics.
研究不足
The study focused on a specific textile composite (Cordura) and silver layers, limiting generalizability. The laser modification's effectiveness is constrained by the substrate's thermal and mechanical properties.
1：Experimental Design and Method Selection:
The study used laser technology to modify a textile composite substrate before depositing silver layers via PVD. The Taguchi experimental design technique was employed to optimize laser parameters.
2：Sample Selection and Data Sources:
The substrate was a textile composite known as Cordura, made of polyamide fibers coated with polyurethane. Silver layers were deposited under controlled conditions.
3：List of Experimental Equipment and Materials:
Equipment included a fiber laser (SM 20W with F-theta objective), PVD setup, and measurement tools like a Dektak 3ST profilometer and Hitachi S-4200 scanning microscope.
4：Experimental Procedures and Operational Workflow:
The substrate was laser-modified under varying parameters (power, frequency, scanning speed), followed by silver deposition via PVD. Resistance measurements were conducted post-deposition.
5：Data Analysis Methods:
Resistance values were analyzed using statistical techniques to determine the impact of laser parameters on layer resistance.
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