title: Reactive coating of soybean oil-based polymer on nanofibrillated cellulose film for water vapor barrier packaging.
abstract: Nanofibrillated cellulose (NFC) easily forms a high strength film but is unable to withstand the influence of water vapor when used in high moisture situations. The water vapor transmission rate (WVTR) of a NFC film was as high as 5088 g/m(2)24h (38 °C, 90% RH). The addition of beeswax latex in a NFC casting film (NFX) lowered the WVTR to 3918 g/m(2)24h. To further reduce the WVTR, a coating agent comprised of acrylated epoxidized soybean oil (AESO) and 3-aminopropyltriethoxysilane (APTS) was applied onto the NFX film using a rod coater. A combination of the suitable AESO/APTS ratio, initiator dosing, curing time and temperature could reduce the WVTR to 188 g/m(2) 24h when the coat weight was 5 g/m(2). Moreover, the coated NFX film was highly hydrophobic along with the improved transparency and thermal stability. This biodegradable polymer-coated NFC film can be used as potential packaging barrier in certain areas.
authors.affiliation: Department of Chemical Engineering and Limerick Pulp & Paper Centre, University of New Brunswick, Fredericton NB E3B 5A3, Canada.
authors.forename: Peng
authors.initials: P
authors.lastname: Lu
authors.affiliation: Department of Chemical Engineering and Limerick Pulp & Paper Centre, University of New Brunswick, Fredericton NB E3B 5A3, Canada. Electronic address: hxiao@unb.ca.
authors.forename: Huining
authors.initials: H
authors.lastname: Xiao
authors.affiliation: Department of Chemical Engineering and Limerick Pulp & Paper Centre, University of New Brunswick, Fredericton NB E3B 5A3, Canada; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 500640, PR China.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Department of Chemical Engineering and Limerick Pulp & Paper Centre, University of New Brunswick, Fredericton NB E3B 5A3, Canada; Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
authors.forename: Glen
authors.initials: G
authors.lastname: Gong
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D004349:Drug Packaging; D018857:Food Packaging; D057139:Nanofibers / Q000737:chemistry*; D011437:Propylamines; D012821:Silanes / Q000737:chemistry; D013024:Soybean Oil / Q000737:chemistry*; D013227:Steam / Q000032:analysis*; D013696:Temperature
chemical_list: D011437:Propylamines; D012821:Silanes; D013227:Steam; C554142:epoxidized soybean oil; D013024:Soybean Oil; D002482:Cellulose; C477625:amino-propyl-triethoxysilane
keywords: Acrylated epoxidized soybean oil; Nanofibrillated cellulose; Water vapor transmission rate