Conductive carbon-nanocellulose coatings on paper, PaperCon2017

Paper products with active and functional coatings have attracted interest in recent years to counter the stagnating demand for traditional graphic paper grades. Conductive coatings have potential uses in various energy generation and storage applications, e.g. in batteries, supercapacitors, and photovoltaics. Carbon coatings on paper were recently reported by the authors of this work (Forsberg et al. 2016) and others (Li et al. 2015, Tang et al. 2014). The current work aims at demonstrating large scale production of flexible low cost conductive carbon coatings on paper. The large aspect ratio of graphene and nano‐graphite present in the carbon coating suspension limits solids content to very low values, which makes it challenging to create thick coating layers required for low resistivity. Nanocellulose binder together with a custom‐built slot coating device is utilized here to enable roll‐to‐roll coating of thick conductive coatings on paper. Rheological and water retention properties of nano‐graphite‐nanocellulose suspensions are reported. Influence of coat weight, carbon black addition and calendering on coating structure and the resistivity was investigated. Impact of relative humidity and creasing of coated samples on their electrical performance was explored as well.  

TAPPI conference proceedings and presentations, technical papers, and publication articles provide technical and management data and solutions on topics covering the Pulp, Paper, Tissue, Corrugated Packaging, Flexible Packaging, Nanotechnology and Converting Industries.

Simply select the quantity, add to your cart and your conference paper, presentation or article will be available for immediate download.