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Type: 
Journal
Description: 
We used soluble graphene derivatives to fabricate gas barrier coatings on the surface of several industrially relevant commodity polymers. The coatings are prepared using electrochemically exfoliated graphene oxide, featuring both monoatomic thickness and micron-scale lateral size, showing better gas barrier performance as compared to films of commercial graphene products. A 74% decrease of oxygen transmission rate is found using loadings as low as 0.4 wt. % (0.2 vol. %). The coating process is performed using a combination of solution processing, filtering, and transfer. It is a robust and versatile approach, working with different transfer processes, different starting graphite materials and a wide range of well-known polymeric substrates: poly(ethylene terephthalate), poly(lactic acid), poly(hexamethylene adipamide), poly(propylene), and poly(vinyl chloride). The use of 2D sheets as surface coatings instead …
Publisher: 
Pergamon
Publication date: 
31 Jan 2016
Authors: 

Davide Pierleoni, Zhen Yuan Xia, Meganne Christian, Simone Ligi, Matteo Minelli, Vittorio Morandi, Ferruccio Doghieri, Vincenzo Palermo

Biblio References: 
Volume: 96 Pages: 503-512
Origin: 
Carbon