We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
A waterproof cellulose nanofibril sheet prepared by the deposition of an alkyl ketene dimer on a controlled porous structure
AI summary Read the abstract
Researchers created a waterproof cellulose nanofibril sheet by impregnating its porous structure with alkyl ketene dimer wax, achieving superhydrophobicity and water vapor barrier performance comparable to LLDPE plastic film — offering a potential bio-based alternative to synthetic polymer packaging.
This study prepared a waterproof cellulose nanofibril (CNF) sheet via the deposition of an alkyl ketene dimer (AKD) on the sheet's controlled porous structure. The porosity of the CNF sheet was controlled by drying under different conditions, which included hot-press drying (HD) and solvent-exchange drying (SD), and the effect on the hydrophobization and water-related barrier performance of the sheet were investigated. When the SD sheet was immersed in an AKD wax solution, the sheet exhibited super-hydrophobicity and a lower water vapor transmission rate, compared with the HD sheet. This indicated that the porous structure of the SD sheet enabled AKD to be adsorbed on both the surface and the inner surface and it filled in the pores of the sheet, thereby giving rise to excellent waterproofing properties. The performance of a hydrophobized SD sheet as a water barrier material was comparable to a linear low-density polyethylene film. This study confirms the possibility for AKD wax to be immersed in a porous CNF sheet and used as a potential barrier material in hydrogel packaging.
More Papers Like This
Flexible Cellulose Nanofiber (CNF)-Nano- Montmorillonite (MMT) Composite Sheet Structure and Water Vapor Barrier Performance
AI summary Read the abstract
Researchers developed flexible composite sheets by spray-coating nano-montmorillonite (MMT) into cellulose nanofiber (CNF) suspensions, finding that increasing MMT content significantly reduced water vapor permeability compared to CNF films alone, offering a biodegradable alternative to plastic packaging.
In Situ Synthesis of Plasticized Bacterial Cellulose Films for Daily Packaging Using Biobased Plasticizers
AI summary Read the abstract
Researchers synthesized plasticized bacterial cellulose films in situ and characterized their mechanical, optical, and barrier properties for daily packaging applications, finding the bio-based materials offered competitive performance with lower environmental impact than petroleum-based alternatives.
Nanocellulose-based packaging materials: Unlocking a sustainable path beyond microplastics
AI summary Read the abstract
Researchers review nanocellulose extracted from plant biomass as a sustainable packaging alternative to petroleum-based plastics, examining how its mechanical strength, tunable surface chemistry, and barrier properties can replace synthetic films and coatings while offering biodegradability and recyclability to reduce microplastic pollution from packaging waste.
Bio-Based Monoepoxy-TerminatedPolysiloxane-ModifiedCoating for Hydrophobic and Oil-Resistant Paper
AI summary Read the abstract
Researchers developed a bio-based coating material by grafting monoepoxy-terminated polysiloxane onto chitosan and cellulose nanofibers via a one-pot method, producing films with tunable hydrophobic and oil-resistant properties for sustainable packaging paper as an alternative to nondegradable plastic coatings.
Enhancement of Barrier Properties of Nanocellulose-Based Coated Paper via AKD and PAE Incorporation
AI summary Read the abstract
TEMPO-oxidized cellulose nanofibrils (TOCNs) combined with AKD and PAE additives produced coated paper with significantly improved water vapor barrier and wet tensile strength, positioning nanocellulose coatings as viable sustainable replacements for plastic packaging. This directly addresses microplastic pollution at its source — plastic packaging is a leading contributor to environmental microplastic load, and scalable bio-based alternatives could meaningfully reduce that burden.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.