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Open AccessArticle

Preparation and Characterization of All-Biomass Soy Protein Isolate-Based Films Enhanced by Epoxy Castor Oil Acid Sodium and Hydroxypropyl Cellulose

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MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China
2
College of Forestry, Beihua University, Jilin 132013, China
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Authors to whom correspondence should be addressed.
Academic Editor: Rafael Luque
Materials 2016, 9(3), 193; https://doi.org/10.3390/ma9030193
Received: 25 January 2016 / Revised: 28 February 2016 / Accepted: 2 March 2016 / Published: 15 March 2016
All-biomass soy protein-based films were prepared using soy protein isolate (SPI), glycerol, hydroxypropyl cellulose (HPC) and epoxy castor oil acid sodium (ECOS). The effect of the incorporated HPC and ECOS on the properties of the SPI film was investigated. The experimental results showed that the tensile strength of the resultant films increased from 2.84 MPa (control) to 4.04 MPa and the elongation at break increased by 22.7% when the SPI was modified with 2% HPC and 10% ECOS. The increased tensile strength resulted from the reaction between the ECOS and SPI, which was confirmed by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD). It was found that ECOS and HPC effectively improved the performance of SPI-based films, which can provide a new method for preparing environmentally-friendly polymer films for a number of commercial applications. View Full-Text
Keywords: soy protein isolate; films; epoxy; all-biomass; castor oil soy protein isolate; films; epoxy; all-biomass; castor oil
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MDPI and ACS Style

Wang, L.; Li, J.; Zhang, S.; Shi, J. Preparation and Characterization of All-Biomass Soy Protein Isolate-Based Films Enhanced by Epoxy Castor Oil Acid Sodium and Hydroxypropyl Cellulose. Materials 2016, 9, 193.

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