The effect of silica modification on the performance of whey protein isolate-CMC biocomposite film: A comprehensive study on physical, mechanical, and thermal properties

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Nur Indah Yanti, Mimi Rahmatan Khaira, Medyan Riza, Syahiddin Dahlan Said, Syaubari, Muklishien, Ika Zuwanna, Rozanna Dewi

2025 AIP Conference Proceedings Vol. 3322 Issue 1 Conference paper Cited by 0 SDG 12SDG 9 Quartile

Abstract

Whey protein isolate (WPI)/Carboxyl metyl celullose (CMC)-based biocomposite films reinforced with silica dispersions at different compositions were prepared by solvent pouring method. The objective of this experiment was to evaluate the physical, mechanical, water barrier, and thermal properties of biocomposite film typically sought for packaging applications. The results showed that the addition of silica significantly increased the tensile strength of the film, with a maximum value of 27.07 MPa at a silica concentration of 7%. However, increasing the silica concentration also causes a decrease in the elongation percentage from 26.48% to 8.32%. © 2025 Author(s).

Affiliations

Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia; Doctoral Program, School of Engineering, Post Graduate Program, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia; Department of Chemical Engineering, Universitas Malikussaleh, Aceh Utara, 24351, Indonesia

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