Polyvinyl Alcohol and Nano-Clay Based Solution Processed Packaging Coatings

Cost-effective, clean, highly transparent, and flexible as well a coatable packaging material is envisioned to solve or at least mitigate quality preservation issues of organic materials, originating from moisture interaction under ambient conditions. Liquid phase processing coatings using nano-clay polyvinyl alcohol (PVOH) has been developed reported. Detailed analysis the coating revealed permeability 2.8 × 10?2 g·cm/m2·day 40 °C 85% relative humidity (RH), which in close accordance with Bharadwaj’s theoretical model. Moreover, are not only more than 90% when exposed white light, but also exhibit excellent flexibility even after going through 10,000 bending cycles maintained same blocking effect against moisture.