Journal
CELLULOSE
Volume 29, Issue 15, Pages 8293-8303Publisher
SPRINGER
DOI: 10.1007/s10570-022-04746-9
Keywords
Cellulose; Perhydropolysilazane; UV irradiation; Oxygen transmission rates; Water vapor transmission rates
Funding
- National Natural Science Foundation of China [22179149]
- Special Project on the Integration of Industry, Education and Research of Guangdong Province [2012B091100293]
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A transparent cellulose film with high gas barrier properties was fabricated via a facile solution dip-coating followed by UV curing method. The film exhibited excellent oxygen and water vapor barrier properties, ultrahigh transparency, and complete biodegradability.
A transparent perhydropolysilazane-derived-SiOx coated cellulose film with high gas barrier properties was fabricated via a facile solution dip-coating followed by UV curing method. The conversion of perhydropolysilazane to SiOx was proved by ATR-FTIR, XPS and TOF-SIMS characterizations. AFM and SEM images revealed the smoothness of the coating and good adhesion between the cellulose substrate and the coating. The thickness of the SiOx coating (50-450 nm) can be tuned by changing the concentration of the perhydropolysilazane precursor solution. The cellulose film (35 mu m in thickness) with 450 nm thick SiOx coating exhibits low oxygen transmission rate (OTR) value of 0.82 cm(3)/m(2)center dot day and water vapor transmission rate (WVTR) value of 1.28 g/m(2)center dot day. The excellent oxygen and water vapor barrier properties, ultrahigh transparency and complete biodegradability of the SiOx coated cellulose film endow it competitive potential for packaging applications.
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