Ecofriendly Fabrication of Modified Graphene Oxide Latex Nanocomposites with High Oxygen Barrier Performance

• DOI: 10.1021/acsami.6b11554
• Publication Date: 2016-11-16T16:23:17Z
• Authors: Yidan Guan; Kevin P. Meyers; Sharathkumar K. M...; Guangjie Hao; Jessica R. Douglas; Steve Trigwell; Sergei I. Nazarenko; Derek L. Patton; James W. Rawlins
• Keywords: oxygen permeability; cross-sectional morphology; Chemistry; 660; water vapor sorption; Physical Sciences and Mathematics; modified graphene oxide; 02 engineering and technology; latex nanocomposites; 0210 nano-technology

Large-scale industrial applications of barrier films and coatings that prevent permeation degradative gases moisture call for the development cost-efficient ecofriendly polymer nanocomposites. Herein, we report facile fabrication latex nanocomposites (LNCs) by incorporating surface-modified graphene oxide (mGO) at various loadings (0.025–1.2 wt %) into a styrene-acrylic using water as processing solvent. LNCs fabricated with mGO exhibited significant reductions (up to 67%) in vapor sorption, resulting greater environmental stability when compared equivalent loading hydrophilic, unmodified GO. The assembly coalescence exfoliated latex/mGO dispersions during film formation process produced highly dispersed well-ordered domains high aspect ratios, where alignment overlap improved increasing content. addition only 0.7 vol % (1.2 led an 84% decrease (relative neat film) oxygen permeability LNC films, excellent performance attributed observed morphologies. This work enables mechanically flexible mGO/LNC superior properties many including protective coatings, food packaging, biomedical products.