Preparation and Properties of Microcrystalline Cellulose/Fish Gelatin Composite Film
1
College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
2
State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(19), 4370; https://doi.org/10.3390/ma13194370
Received: 4 September 2020
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Revised: 25 September 2020
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Accepted: 27 September 2020
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Published: 30 September 2020
(This article belongs to the Special Issue Advances in Natural Fibers and Polymers)
As a natural macromolecule-based biomaterial, fish gelatin is used in medical materials for its low pathogen infection risk. However, because of poor mechanical properties, its application has been limited. In this study, microcrystalline cellulose-reinforced fish gelatin (FG/MCC) composite films were prepared with a biological cross-linking agent (genipin) under ultrasonic treatment. SEM micrographs showed that the smooth microstructure of FG film became increasingly disordered with the addition of MCC. The infrared spectrum analysis (FTIR) demonstrated the existence of hydrogen bond interaction between MCC and FG. Compared with the pure FG film, the tensile strength (TS) and modulus of elasticity (MOE) of composite films with MCC were improved, and the elongation at break (EAB) and swelling ratios (SR) were decreased. Ultrasonic treatment could further improve TS, MOE, and SR. When the composite film was prepared with 15% MCC and treated with ultrasound, the TS and MOE increased by 115% and 227%, respectively, while the EAB decreased by 35% and the SR decreased by 4% in comparison with pure FG films. Thermo-gravimetric analysis (TGA) showed that the FG/MCC composite films were stable below 100 °C. The above results indicate that the FG/MCC films have optimistic application prospects in the biomedical field.
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Keywords:
fish gelatin; microcrystalline cellulose; film; biopolymers; ultrasound
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MDPI and ACS Style
Pan, L.; Li, P.; Tao, Y. Preparation and Properties of Microcrystalline Cellulose/Fish Gelatin Composite Film. Materials 2020, 13, 4370. https://doi.org/10.3390/ma13194370
AMA Style
Pan L, Li P, Tao Y. Preparation and Properties of Microcrystalline Cellulose/Fish Gelatin Composite Film. Materials. 2020; 13(19):4370. https://doi.org/10.3390/ma13194370
Chicago/Turabian StylePan, Ling, Peng Li, and Yubo Tao. 2020. "Preparation and Properties of Microcrystalline Cellulose/Fish Gelatin Composite Film" Materials 13, no. 19: 4370. https://doi.org/10.3390/ma13194370
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