Preparation and characterization of polyvinyl alcohol (PVA)-glycerol composite films incorporating nanosilica from municipal solid waste incinerator bottom ash

• DOI: 10.1016/j.heliyon.2024.e25963
• Publication Date: 2024-02-07T02:12:23Z
• Authors: Phan Thi Hong Hanh; Thitipone Suwunwong; Suchada Chantrapr...; Patcharanan Choto; Chuleeporn Thanom...; Khamphe Phoungthong
• Keywords: Polyvinyl Alcohol; Thermogravimetric analysis; Plasticizer; Vinyl alcohol

This study investigates the fabrication of a composite film composed polyvinyl alcohol (PVA) and glycerol, incorporating nanosilica derived from municipal solid waste incinerator bottom ash (BA). The is blended with PVA film-forming solution containing glycerol as plasticizer. films are characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM). Additionally, thermogravimetric analysis (TGA) conducted to evaluate thermal properties, while mechanical properties assessed in terms tensile strength (TS) elongation at break (EAB). results indicate that presence silica nanoparticles reduces transparency increases thickness glycerol. Notably, 1% demonstrates significant enhancement strength, exhibiting 50% increase compared without silica. However, higher loadings lead deterioration due agglomeration within polymer matrix. As expected, slightly elevates degradation temperature.