Studying the Physicochemical Properties of Poly(lactic acid) Based Nanocomposite Antioxidant Active Film

Document Type : Research Article

Authors

Hadi Almasi ¹

Babak Ghanbarzadeh ²

Jalal Dehghan nia ³

Ali Akbar Entezami ⁴

Asghar Khosrowshahi Asl ⁵

¹ Assistant Professor of Food Science and Technology, Faculty of Agriculture, University of Urmia, Urmia, Iran,

² Associated Professor of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

³ Assistant Professor of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

⁴ Professor of Polymer Chemistry, Faculty of Chemistry, University of Tabriz, Iran

⁵ Professor of Food Science and Technology, Faculty of Agriculture, University of Urmia, Urmia, Iran,

https://doi.org/10.22067/ifstrj.v10i4.43725

Abstract

Fatty acid modified cellulose nanofibers (MCNFs) and TBHQ antioxidant were added to poly(lactic acid) (PLA) film. The combined effects of the MCNFs and TBHQ on the morphological, thermal, mechanical and barrier properties of PLA film were analyzed. The morphology of fracture surfaces evaluated by field emission scanning electron microscopy (FE-SEM). XRD results showed that the crystallinity of the PLA film with added MCNFs was substantially higher than that of pure PLA and antioxidant active PLA films. Glass transition and melting temperatures changed with the addition of these two components. The addition of 3wt% of TBHQ to PLA films leads to a significant reduction (p

Keywords

Poly(lactic acid)

Modified cellulose nanofibers

Tert-butylhydroquinone

Morphological properties

Physical properties

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