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Perhydropolysilazane-derived-SiOx coated cellulose: a transparent biodegradable material with high gas barrier property

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Abstract

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 µm in thickness) with 450 nm thick SiOx coating exhibits low oxygen transmission rate (OTR) value of 0.82 cm3/m2·day and water vapor transmission rate (WVTR) value of 1.28 g/m2·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.

Graphical abstract

A transparent perhydropolysilazane-derived-SiOx layer is tightly coated on a cellulose film via a facile solution dip-coating followed by UV curing method. The sandwich structured cellulose-SiOx films show excellent oxygen and water vapor barrier properties as well as ultrahigh transparency and complete biodegradability, which has a great potential for food, medicine and other packaging applications.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant No. 22179149); and the Fundamental Research Funds for the Central Universities (171gjc37).

Funding

National Natural Science Foundation of China (Grant No. 22179149); Special Project on the Integration of Industry, Education and Research of Guangdong Province (Grant No. 2012B091100293).

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Correspondence to Min Xiao or Yuezhong Meng.

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Yue, S., Wang, S., Han, D. et al. Perhydropolysilazane-derived-SiOx coated cellulose: a transparent biodegradable material with high gas barrier property. Cellulose 29, 8293–8303 (2022). https://doi.org/10.1007/s10570-022-04746-9

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  • DOI: https://doi.org/10.1007/s10570-022-04746-9

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