Platinum coating on silk by a supercritical CO2 promoted metallization technique for applications of wearable devices

[摘要] Highly reliable Pt coating on silk textile was practiced by supercritical carbon dioxide (sc-CO2) promoted electroless plating in this study. Electroless plating is a facile method to integrate polymeric and metallic materials, and sc-CO2 was introduced to the process to enhance the electroless plating characteristics. Firstly, the palladium organometallic complex was inlaid into the silk substrate without damaging the silk structure in the catalyzation step. Secondly, a smooth and compact Pt layer was realized in the metallization step. Mechanisms involved in the sc-CO2-assisted metallization step were focused and discussed in this study. The lowest electrical resistance was found at 50 m Omega in the sample metallized with the optimized conditions. The adhesive test showed robustness of the composite material. Corrosion resistance results revealed the applicability of this silk-Pt composite materials prepared by the sc-CO2-assisted electroless plating in wearable device technology.

[发布日期] 2018-09-25

[效力级别]  Proceedings Paper

[关键词] Silk;Platinum electroless plating;Supercritical carbon dioxide-assisted metallization;Corrosion resistance;Biocompatibility