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Article

A High-Performance Soy Protein Isolate-Based Nanocomposite Film Modified with Microcrystalline Cellulose and Cu and Zn Nanoclusters

by 1,2, 1,2, 1,2,*, 1,2,* and 1,2,*
1
Key Laboratory of Wood Material Science and Utilization, Beijing Forestry University, Beijing 100083, China
2
Ministry of Education, Beijing Key Laboratory of Wood Science and Engineering, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Antonio Pizzi
Polymers 2017, 9(5), 167; https://doi.org/10.3390/polym9050167
Received: 31 March 2017 / Revised: 1 May 2017 / Accepted: 3 May 2017 / Published: 6 May 2017
(This article belongs to the Collection Polysaccharides)
Soy protein isolate (SPI)-based materials are abundant, biocompatible, renewable, and biodegradable. In order to improve the tensile strength (TS) of SPI films, we prepared a novel composite film modified with microcrystalline cellulose (MCC) and metal nanoclusters (NCs) in this study. The effects of the modification of MCC on the properties of SPI-Cu NCs and SPI-Zn NCs films were investigated. Attenuated total reflectance-Fourier transformed infrared spectroscopy analyses and X-ray diffraction patterns characterized the strong interactions and reduction of the crystalline structure of the composite films. Scanning electron microscopy (SEM) showed the enhanced cross-linked and entangled structure of modified films. Compared with an untreated SPI film, the tensile strength of the SPI-MCC-Cu and SPI-MCC-Zn films increased from 2.91 to 13.95 and 6.52 MPa, respectively. Moreover, the results also indicated their favorable water resistance with a higher water contact angle. Meanwhile, the composite films exhibited increased initial degradation temperatures, demonstrating their higher thermostability. The results suggested that MCC could effectively improve the performance of SPI-NCs films, which would provide a novel preparation method for environmentally friendly SPI-based films in the applications of packaging materials. View Full-Text
Keywords: soy protein isolate; microcrystalline cellulose; metal nanoclusters; nanocomposite film; tensile strength soy protein isolate; microcrystalline cellulose; metal nanoclusters; nanocomposite film; tensile strength
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MDPI and ACS Style

Li, K.; Jin, S.; Chen, H.; He, J.; Li, J. A High-Performance Soy Protein Isolate-Based Nanocomposite Film Modified with Microcrystalline Cellulose and Cu and Zn Nanoclusters. Polymers 2017, 9, 167. https://doi.org/10.3390/polym9050167

AMA Style

Li K, Jin S, Chen H, He J, Li J. A High-Performance Soy Protein Isolate-Based Nanocomposite Film Modified with Microcrystalline Cellulose and Cu and Zn Nanoclusters. Polymers. 2017; 9(5):167. https://doi.org/10.3390/polym9050167

Chicago/Turabian Style

Li, Kuang, Shicun Jin, Hui Chen, Jing He, and Jianzhang Li. 2017. "A High-Performance Soy Protein Isolate-Based Nanocomposite Film Modified with Microcrystalline Cellulose and Cu and Zn Nanoclusters" Polymers 9, no. 5: 167. https://doi.org/10.3390/polym9050167

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