Next Article in Journal
Exceptionally High Negative Electro-Caloric Effects of Poly(VDF–co–TrFE) Based Nanocomposites Tuned by the Geometries of Barium Titanate Nanofillers
Previous Article in Journal
Characterisation and Evaluation of Trimesic Acid Derivatives as Disulphide Cross-Linked Polymers for Potential Colon Targeted Drug Delivery
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Polymers 2017, 9(8), 312;

Properties of Soy Protein Isolate Biopolymer Film Modified by Graphene

1,2,3,* and 1,2,3,*
Key Laboratory of Wood Material Science and Utilization (Beijing Forestry University), Ministry of Education, Beijing 100083, China
Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China
Authors to whom correspondence should be addressed.
Received: 21 June 2017 / Revised: 22 July 2017 / Accepted: 25 July 2017 / Published: 27 July 2017
Full-Text   |   PDF [3867 KB, uploaded 27 July 2017]   |  


This study applied a facile and green approach to synthesize a stable graphene aqueous dispersion, and the graphene aqueous dispersion was employed to modify the renewable, compatible and biodegradable soy-protein-isolated (SPI) films to enhance their thermal stability, mechanical properties and water resistance. Atomic force microscopy (AFM) images confirmed the monolayer structure of graphene. The hydrogen bonds and π–π interactions between graphene and the SPI molecules were showed with the attenuated total reflectance Fourier transform infrared (ATR FT-IR) spectroscopy, and X-ray diffraction (XRD). As expected, compared to the pure SPI film, the tensile strength (TS) of the film with 74% graphene increased by 27.22% and the total soluble matter (TSM) of the film with 93% graphene decreased by 11.30%. View Full-Text
Keywords: soy protein isolate; graphene; mechanical property; water resistance soy protein isolate; graphene; mechanical property; water resistance

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Han, Y.; Li, K.; Chen, H.; Li, J. Properties of Soy Protein Isolate Biopolymer Film Modified by Graphene. Polymers 2017, 9, 312.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top