Chitosan/Polyvinyl Alcohol/SiO2 Nanocomposite Films: Physicochemical and Structural Characterization
Mohaddeseh Kariminejad, Rezvan Zibaei, Azin Kolahdouz-Nasiri, Reza Mohammadi, Amir Mohammad Mortazavian, Sara Sohrabvandi, Elham Khanniri, Nasim Khorshidian, M Ketelsen, M Janssen, U Hamm, N Al-Tayyar, A Youssef, R Al-Hindi, W Chen, S Ma, Q Wang, D Mcclements, J Liu, X Ngai, T Liu, F, H Haghighi, S Leugoue, F Pfeifer, H Siesler, F Licciardello, P Fava, A Pulvirenti, S Narasagoudr, V Hegde, V Vanjeri, R Chougale, S Masti, H Hu, J Xin, H Hu, A Chan, L He, R Priyadarshi, J Rhim, F Garavand, I Cacciotti, N Vahedikia, A Rehman, Tarhan, S Akbari-Alavijeh, R Shaddel, A Rashidinejad, M Nejatian, S Jafarzadeh, I Neacsu, A Serban, A Nicoara, R Trusca, V Ene, F L; Iordache, P Bakshi, D Selvakumar, K Kadirvelu, N Kumar, B Qu, Y Luo, A George, M Sanjay, R Srisuk, J Parameswaranpillai, S Siengchin, H Wang, F Ding, L Ma, Y Zhang, M Emamhadi, M Sarafraz, M Akbari, Y Fakhri, N Linh, A Khaneghah, I Neacsu, A Melente, A Holban, A Ficai, L Ditu, C Kamerzan, B Tihauan, A Nicoara, M Chifiriuc, G Pircalabioru, X Chang, Y Hou, Q Liu, Z Hu, Q Xie, Y Shan, G Li, S Ding, A Paduraru, C Ghitulica, R Trusca, V Surdu
Abstract
In the present study, the effects of the two ratios of polyvinyl alcohol /Chitosan (1:1 and 3:1) and nano-silicon dioxide (nano-SiO2) (0, 0.5, and 1%) on structural and physicochemical properties of PVA/Chitosan/ nano-SiO2 nanocomposite films were investigated. Our findings showed that the treatments' water solubility (WS) in the presence of nano-SiO2 and higher PVA content was decreased, and the lowest amount was in P3C1-1% (59%). The addition of silica nanoparticles decreased the water vapor permeability (WVP) of films, and the lowest amount of WVP was for treatment with a ratio of 1:1 of PVA/chitosan and 1% nano-SiO2 (P3C1-1%) which was 3.08× 10-10 g m s-1m-2 Pa. Tensile strength (Ts) value was achieved 35.86 MPa in higher PVA content and 1% of nano-SiO2 (P3C1-1%) which was the highest. However, the light transmission value of all treatments did not differ greatly. According to the FTIR results, the appropriate interaction between both polymers and nano-SiO2 was observed in the concentration of 1% nano-SiO2 in P1C1. Eventually, significant improvement of structural and physicochemical properties of the films could achieve in higher PVA content and concentration of 1% of nano-SiO2. Based on these results, these nanocomposite films could be considered suitable for the packaging sector and preserve food quality.