Preparation and antibacterial properties of hemp cellulose-based material based on Schiff base between lysine grafted N-halamine and dialdehyde hemp

Abstract

Bacteria have exerted a great threat to the human living environment. Therefore, many industries put forward higher requirements for the antibacterial properties of cellulose-based materials, especially the applications in food packaging, biomedical, and textile industry. In this paper, through using synthetic lysine grafted N-halamine organic antibacterial agent and hemp fiber as raw materials, the lysine grafted N-halamine Schiff base type hemp cellulose-based antibacterial material is prepared by simple and mild Schiff base reaction. This hemp cellulose-based antibacterial material combines various sterilization methods of hemp fiber, amino acid type Schiff base and N-halamine. The synergistic cooperation of different sterilization methods greatly improves the antibacterial performance of material and reduces the possible bacterial resistance. The antibacterial examination shows that S. aureus and E. coli could be killed totally by this material in 5 min, and the inhibition zone is increased to 18.4 mm. Meanwhile, this hemp cellulose-based antibacterial material has low cost, green preparation, excellent storage stability and regeneration ability, which provides a novel way for the development of synergistic application of different antibacterial agents and the use of cellulose-based materials in bacterial environment.