Surface-coated paper packaging with nanocellulose modified with quaternary ammonium organosilane and precipitated calcium carbonate for improved water repellency and antibacterial activity.

ABSTRACT: The widespread use of non-biodegradable plastic packaging has raised environmental and health concerns, prompting the development of sustainable alternatives. This study presents a functional paper coating composed of nanocellulose (CNFs) derived from hemp agricultural waste and modified with octadecyldimethyl(3-trimethoxysilylpropyl) ammonium chloride (ODDMAC). The modified CNFs were combined with varying concentrations of precipitated calcium carbonate (PCC) to enhance coating performance. Structural modifications were confirmed by FTIR and solid-state ¹³C-NMR, indicating the presence of alkyl and siloxane groups. Among all formulations, the PCC5%-coated paper exhibited optimal performance, with a highly hydrophobic surface (water contact angle > 150°), a significantly reduced Cobb60 val

SUBMITTER: Somsesta N 

PROVIDER: S-EPMC12267409 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature