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

Yang, Jianlei and Xu, Shicai and Wang, Wenqing and Ran, Xiuzhen and Ching, Yern Chee and Sui, Xiao and Wei, Yunwei and Wang, Rui and Al-Hada, Naif Mohammed (2023) Preparation and characterization of bioplastics from silylated cassava starch and epoxidized soybean oils. Carbohydrate Polymers, 300. ISSN 0144-8617, DOI https://doi.org/10.1016/j.carbpol.2022.120253.

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Abstract

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.

Item Type: Article
Funders: Talent Introduction Project of Dezhou University (Grant No: 2022xjrc102)
Uncontrolled Keywords: Starch; Silane coupling agent; Epoxidized soybean oil; Silylation; Bioplastic; Mechanical property
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Engineering > Department of Chemical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 28 Nov 2023 08:02
Last Modified: 28 Nov 2023 08:02
URI: http://eprints.um.edu.my/id/eprint/39370

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