| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Study on the Variation of Crystal Properties of Chitin/Silk Fibroin Biocomposite Films |
| ZHANG Yulu1,2, HU Qian1, YE Qian1, WU Jiaxi1, LI Qiushi1, SU Ganmao1, DU Guanben1,2, XU Kaimeng1,2
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1 International Joint Research Center for Biomass Materials, Chinese Ministry of Science and Technology, Southwest Forestry University, Kunming 650224, China
2 School of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China |
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Abstract Chitin (CT) and silk fibroin (SF) were selected as raw materials inspired by the chemical component of crustacean shell cuticle. The CT/SF biocomposite films were prepared by a facile casting method with the various CT/SF ratios and drying conditions (conventional and vacuum drying). The crystalline properties and the variation of other related characteristics for the biocomposite film were characterized by SEM, FTIR, UV-Vis, TG, XRD and electronic mechanical testing machine. The results show that as the ratio of m(CT)∶m(SF) varies from 1∶4 to 4∶1, the crystal appearance of the CT/SF biocomposite film gradually transforms from a loose ‘radial dotted line' to a dense ‘filiform net' under the conventional drying, while from “snow flower-like” to “worm-like” and then to “dotted line” under the vacuum drying. The drying condition plays a significant role on the variation of micro-morphology of the crystals of the biocomposite film when the ratio of m(CT)∶m(SF) is 4∶1, changing from the ‘scaly layer' under the conventional drying to the ‘cactus ball' under the vacuum drying. Meanwhile, some microcrystals with a diameter of about 60 nm appear in the biocomposite film without crystallization at the same ratio. The biocomposite film with a m(CT)∶m(SF) ratio of 1∶4 under the conventional drying exhibits the highest average transmittance (97.3%) when the wavelength of visible light is beyond 500 nm.The non-crystalline biocomposite film with the m(CT)∶m(SF) ratio of 4∶1 under the vacuum drying shows the optimum comprehensive mechanical properties and thermal stability, corresponding to the tensile strength and elongation at break of 1.28 MPa and 134%, respectively.
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Published:
Online: 2022-06-09
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| Fund:Applied Basic Research Programs of Yunnan Province (202201AT070058, 2019FB067), National Natural Science Foundation of China (32060381), the Scientific Research Funds of Educational Committee of Yunnan Province (2022Y552), the Innovative One-Ten Thousand Youth Talents of Yunnan Province (YNWR-QNBJ-2020-203), and National College Student Innovation and Entrepreneurship Training Project (202110677009). |
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1 Tao F, Cheng Y, Shi X, et al. Carbohydrate Polymers, 2020, 230, 115658.
2 Huang W, Ling S, Li C, et al. Chemical Society Reviews, 2018, 47(17), 6486.
3 Zhu B, Wang H, Leow W R, et al. Advanced Materials, 2016, 28(22), 4250.
4 Luo J, Zhang L, Peng Q, et al. International Journal of Biological Macromolecules, 2014, 66, 319.
5 Kim H J, Kim J H, Jun K W, et al. Advanced Energy Materials, 2016, 6(8), 1502329.
6 Shao Z Z.Silk, spider silk and silk protein, Chemical Industry Press, 2015,pp.36(in Chinese).
邵正中.蚕丝、蜘蛛丝及其丝蛋白, 化学工业出版社, 2015,pp. 36.
7 Murphy A R, Kaplan D L.Journal of Materials Chemistry, 2009, 19(36), 6443.
8 Zhang X Z, Situ F M, Peng P, et al. Chinese Journal of Tissue Enginee-ring Research, 2015, 19(12), 1858(in Chinese).
张霞只, 司徒方民, 彭鹏, 等. 中国组织工程研究, 2015, 19(12), 1858.
9 Fan S N, Chen J, Gu Z H, et al. Acta Polymerica Sinica, 2021, 52(1), 1(in Chinese).
范苏娜, 陈杰, 顾张弘, 等. 高分子学报, 2021, 52(1), 1.
10 Nikolov S, Petrov M, Lymperakis L, et al. Advanced Materials, 2010, 22(4), 519.
11 Rosen M N, Baran K A, Sison J N, et al. Acta Biomaterialia, 2020, 110, 196.
12 Liu S, Sun J, Yu L, et al. Molecules, 2012, 17, 4604.
13 Soon C Y, Tee Y B, Tan C H, et al. International Journal of Biological Macromolecules, 2018, 108, 135.
14 Lamarque G, Viton C, Domard A.Biomacromolecules,2004,5(3),992.
15 Baimark Y, Srisaard M, Srihanam P.Express Polymer Letters, 2010, 4(12), 781.
16 Duan B, Chang C Y, Ding B B, et al. Journal of Materials Chemistry A, 2013, 1(5), 1867.
17 Mohan K, Ravichandran S, Muralisankar T, et al. International Journal of Biological Macomolecules, 2019, 126, 555.
18 Osada M, Miura C, Nakagawa Y S, et al. Carbohydrate Polymers, 2012, 88, 308. |
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2022, Vol. 36 
