Composite Film Based on Pulping Industry Waste and Chitosan for Food Packaging
Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
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Materials 2018, 11(11), 2264; https://doi.org/10.3390/ma11112264
Received: 23 October 2018
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Revised: 6 November 2018
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Accepted: 9 November 2018
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Published: 13 November 2018
(This article belongs to the Special Issue Polymeric Materials: Surfaces, Interfaces and Bioapplications)
Wood auto-hydrolysates (WAH) are obtained in the pulping process by the hydrothermal extraction, which contains lots of hemicelluloses and slight lignin. WAH and chitosan (CS) were introduced into this study to construct WAH-based films by the casting method. The FT-IR results revealed the crosslinking interaction between WAH and CS due to the Millard reaction. The morphology, transmittance, thermal properties and mechanical properties of composite WAH/CS films were investigated. As the results showed, the tensile strength, light transmittances and thermal stability of the WAH-based composite films increased with the increment of WAH/CS content ratio. In addition, the results of oxygen transfer rate (OTR) and water vapor permeability (WVP) suggested that the OTR and WVP values of the films decreased due to the addition of CS. The maximum value of tensile strengths of the composite films achieved 71.2 MPa and the OTR of the films was low as 0.16 cm3·μm·m−2·24 h−1·kPa−1, these properties are better than those of other hemicelluloses composite films. These results suggested that the barrier composite films based on WAH and CS will become attractive in the food packaging application for great mechanical properties, good transmittance and low oxygen transfer rate.
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MDPI and ACS Style
Xu, J.-D.; Niu, Y.-S.; Yue, P.-P.; Hu, Y.-J.; Bian, J.; Li, M.-F.; Peng, F.; Sun, R.-C. Composite Film Based on Pulping Industry Waste and Chitosan for Food Packaging. Materials 2018, 11, 2264. https://doi.org/10.3390/ma11112264
AMA Style
Xu J-D, Niu Y-S, Yue P-P, Hu Y-J, Bian J, Li M-F, Peng F, Sun R-C. Composite Film Based on Pulping Industry Waste and Chitosan for Food Packaging. Materials. 2018; 11(11):2264. https://doi.org/10.3390/ma11112264
Chicago/Turabian StyleXu, Ji-Dong, Ya-Shuai Niu, Pan-Pan Yue, Ya-Jie Hu, Jing Bian, Ming-Fei Li, Feng Peng, and Run-Cang Sun. 2018. "Composite Film Based on Pulping Industry Waste and Chitosan for Food Packaging" Materials 11, no. 11: 2264. https://doi.org/10.3390/ma11112264
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