Nanocellulose has gained increased attention during the last decades. Two kinds currently exist: the cellulose nanocrystals (CNC) and the cellulose nanofibrils (CNF). Nanocellulose is an interesting renewable, biodegradable, and biobased material for many applications in such fields as: composites, papermaking, food, or more recently for electronic purpose. This studies aims at developing new conductive inks based on nanocellulose and silver nanowires for transparent and conductive applications. This study has evaluated on one hand the ability of using tubular rigid CNC as template for producing silver nanorods, prior their formulation into conductive inks. On the other hand, the ability of using flexible and entangled CNF to stabilize commercial silver nanowires, usually unstable in suspension, was investigated. The results of this project lead to the patented formulation and commercialization of one low silver content conductive ink based on silver and CNC and two conductive transparent ink based on CNF and silver nanowires. Physico-chemical interactions and colloidal stability of such hybrid suspension have been scientifically studied meanwhile printing process adapted formulation have been successfully designed and tested at laboratory scale but also industrial scale.

Nanocellulose- Silver hybrid structuration for stable suspension and transparent conductive material design

253rd National Meeting (2017)

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