Document Type : Full length

Authors

• Behnaz Momenpoor ¹
• Firoozeh Danafar ²
• Fereshteh Bakhtiari ³
• Aram Namjoo ³

¹ Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman,Kerman,Iran

² Department of chemical engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

³ Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.

Abstract

The properties of Nanoclay-corn starch film were studied in the presence of Nanostarch. Nanostarch was synthesized through nanoprecipitation and characterized using particle size distribution, Field Emission Scanning Electron Microscopy (FESEM), X-ray diffraction (XRD), and Fourier Transform Infrared Analysis (FTIR). The XRD analysis of nanostarch particles revealed a distinctive V-type diffraction peak, with particle diameters ranging from 25 to 100 nm. The impact of introducing nanostarch into the starch-nanoclay film was investigated in terms of nanocomposite film thickness, transparency, morphology, wettability, and mechanical properties. The results indicated adding nanostarch particles improved optical transparency of the film along with its hydrophobicity and flexibility. The film having a weight ratio of 0.769 (nanoclay to nanostarch) showed maximum hydrophobicity (107.85°), and elongation at break (58.6%). This suggests that the appropriate incorporation of nanostarch can enhance the film's flexibility. The maximum tensile strength (5.88 MPa) was obtained for the film with a weight ratio of 1 (nanoclay to nanostarch).

Keywords

• Nanostarch
• Nanocomposite
• Corn starch
• Nanoclay
• Transparency

Main Subjects

• Environmental Engineering,