Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 225, Issue -, Pages 266-276Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.10.261
Keywords
Biomass composite; Multi-functional; Mechanism
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A biomass composite material (CS@NC@PA-Na) was prepared from chitosan, nano-cellulose, and sodium phytate. The prepared product was characterized by various analytical techniques. The CS@NC@PA-Na showed good fire/water safety and antimicrobial properties. This work provides an efficient, feasible and eco-friendly route for large-scale production of multi-functional CS-based biomass materials.
In this work, a biomass composite material (CS@NC@PA-Na) was prepared from chitosan (CS), nano-cellulose (NC) and sodium phytate (PA-Na). The prepared products were characterized by scanning electron micro-scopy (SEM), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), X-ray photo-electron spectrometry (XPS) and X-ray diffraction (XRD). The fire/water safety and antimicrobial properties of the CS@NC@PA-Na were fully studied. The results indicated CS@NC@PA-Na (50 mg) could effectively reduce the concentration of methyl orange by 85 % under 30 min adsorption. Meanwhile, only 5 wt% CS@NC@PA-Na could increase the limiting oxygen index (LOI) value of epoxy resin composite from 24.5 to 30.1 %, and decrease the peak heat/smoke release rate by 29.5 and 33.3 %, respectively. Moreover, CS@NC@PA-Na also exhibited excellent antibacterial effect. This work provides an efficient, feasible and eco-friendly route for large-scale production of multi-functional CS-based biomass materials that could be used in the fields of fire safety and environmental conservation.
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