Use of phosphorylated chitosan/alumina nanoadditives for polymer performance improvement

Abstract In this research, a new generation of ternary nanocomposites based on poly(ethylene terephthalate) (PET), phosphorylated chitosan and surface modified alumina nanoparticles were fabricated in four steps. The phosphorylation process was targeted for the insertion phosphorus moieties as flame retardant agent final PET nanocomposite. Likewise, environmentally friendly nano-alumina used matrix to improve thermal properties collaboration with organic anchored moieties. Alternatively, presence bio-safe combination simultaneously improved antibacterial activity matrix. Furthermore, effects morphology inspected by different approaches. structure distribution nanoscale particles analyzed scanning electron microscopy. addition, differential calorimetry thermogravimetric analyses in-depth evaluation prepared nanocomposites. Prepared showed better growth inhibition activities against Escherichia coli bacteria compared PET/phosphorylated samples. Also, characteristics considerably improved.