Water vapor permeability of smooth cellulose nanofiber film prepared via spraying

Eco-friendly and greener barrier materials are required to replace the synthetic packaging as they produce a threat environment. These can be fabricated by natural polymers such cellulose nanofiber (CNF). The sustainability of CNF was so amazing due its potential for circular economy provides alternative platform plastics. challenging task fabricate films still existed also current methods have various limitations. good oxygen permeability value lower than However, poor water vapour higher that fabrication method is one strong parameters impact on films. deposition suspension stainless-steel plate via spraying, process acting material against vapour. In spraying process, time form in diameter 15.9 cm less 1 min it independent content suspension. uniqueness their surfaces, rough surface exposed air smooth stainless steel. Their surfaces were investigated SEM, AFM optical profilometry micrographs, confirming evaluated notable roughness. spray coated glossy vapor remains obscure. flexible tailor basis weight thickness adjusted with varying fibre content. tailored density plot between transfer rate (WVTR)/water has been investigated. WVP varied from 6.99 ± 1.17 × 10−11 4.19 1.45 g/m.s.Pa. 664 Kg/m3 1,412.08 Kg/m3. achieved 2 wt% (1,120 Kg/m3) 3.91 values comparable Given this correspondence, This scale up commercialization materials.