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- Title
Facile synthesis of fluorine-free cellulosic paper with excellent oil and grease resistance.
- Authors
Xie, Junxian; Xu, Jun; Cheng, Zheng; Chen, Junjun; Zhang, Zhili; Chen, Tong; Yang, Rendang; Sheng, Jie
- Abstract
Fluorine-free cellulosic paper was successfully obtained by coating the glassine base paper with eco-friendly cellulosic coating, which was made from dissolving cellulose in 8 wt% NaOH/12 wt% urea aqueous solution. Then the coated paper was severally immersed into CH3COOH, Na2SO4, and H2O solution to coagulate and regenerate. Benefiting from the compact matrix and fully covered surface, the resultant cellulosic paper exhibited favorable barrier properties and mechanical performance. Notably, the paper coagulated with CH3COOH displayed the reduction in water–vapor transmission rate, air permeability, and uptake of organic solvents due to its low porosity (26.8%) and narrow pore size distribution (0.1–0.36 µm). The tensile strength and elongation at break of papers treated by CH3COOH at coating weight of 5 g/m2 were increased by 72.1% and 34.0%, respectively. In summary, the fluorine-free cellulosic paper with high oil and grease resistance is attractive for the development of high-performance materials for food packing applications. Fluorine-free paper was obtained from the glassine base paper coated with eco-friendly, non-fluorinated, and degradable cellulosic coating, then coagulated with CH3COOH, Na2SO4, and H2O solution, respectively. The resultant functional papers displayed enhanced barrier properties (oil, organic solvent, vapor, and gas) and mechanical performance.
- Subjects
PORE size distribution; LUBRICATION &; lubricants; PETROLEUM; ORGANIC solvents; CELLULOSE fibers; CELLULOSE nanocrystals; TENSILE strength
- Publication
Cellulose, 2020, Vol 27, Issue 12, p7009
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-020-03248-w