Preparation and characterization of bioplastics from silylated cassava starch and epoxidized soybean oils.

Autor: Yang J; Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China. Electronic address: yangjlly1985@outlook.com., Xu S; Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China., Wang W; College of Law, Dezhou University, Dezhou 253023, China., Ran X; Dezhou Product Quality Standard Metrology Research Institute, 253023 Dezhou, China., Ching YC; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia., Sui X; Dezhou Product Quality Standard Metrology Research Institute, 253023 Dezhou, China., Wei Y; Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China., Wang R; Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China., Al-Hada NM; Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China.
Jazyk: angličtina
Zdroj: Carbohydrate polymers [Carbohydr Polym] 2023 Jan 15; Vol. 300, pp. 120253. Date of Electronic Publication: 2022 Oct 24.
DOI: 10.1016/j.carbpol.2022.120253
Abstrakt: In this work, a systematic coupling study of silane coupling agent between starch and epoxidized soybean oils (ESO) was carried out. Starch was modified by 3-aminopropyl trimethoxy silane (APMS) with various contents of NaOH. The APMS-modified starch was incorporated with ESO to synthesize the bioplastics by solution casting. As demonstrated by the FTIR spectra, the hydrogen bond interactions among starch molecules were inhibited by the modification. This outcome provided higher interaction and compatibility of starch with ESO, as confirmed by FESEM. TGA showed that the thermal stability of starch decreased considerably after the silylation. In contrast, the produced bioplastics with silylated starch exhibited higher thermal stability than the control sample. Regarding the bioplastics, an obvious increase of tensile strength from 5.78 MPa to 9.29 MPa was obtained. This work suggested a simple and effective modification technique by APMS to improve compatibility of starch/ESO-based bioplastics with superior mechanical and thermal properties.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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