Excellent anti‐bacterial activity and surface properties of polyamide‐6 films modified with argon‐plasma and methyl diallyl ammonium salt‐graft

Abstract

In this study, the effect of argon-plasma treatment on the grafting of methyl diallyl ammonium salt (MDAA) onto polyamide-6 film and the anti-bacterial and surface properties of the plasma-and graft-treated film were investigated. The grafting amounts of MDAA caused by argon-plasma treatment increased with the increase in the plasma exposure time and plasma power. The analyses of Fourier transform infrared (FT-IR) spectroscopy and electron spectroscopy for chemical analysis (ESCA) spectra revealed that the epoxy and vinyl groups of MDAA could be grafted on the argon-plasma treated polyamide-6 film. The survey spectra of ESCA, the patterns of atomic force microscopy (AFM), and the spectra from scanning electron microscopy (SEM) were employed to certify the surface modification of argon-plasma treated and the argon-plasma treated/MDAA grafted polyamide-6 films. Argon-plasma treatment could generate the functional group and increase the roughness on the surface of polyamide-6 film. This phenomenon could enhance the grafting effect of MDAA. The anti-bacterial property of argon-plasma treated/MDAA grafted polyamide-6 film was excellent. This argon-plasma treated/MDAA grafted polyamide-6 film was expected to be applied on the field of packing.

Plasma Grafting with Methyl Di-Ally Ammonium Salt to Impart Anti-Bacterial Properties to Polypropylene

“…Figure 6 shows ESCA analysis at higher binding energies for pristine PP and grafted PP. It illustrates the -CH 2 -N + structure at 402.2 eV, a finding similar to that in [40,41]. On the basis of the discussion of FTIR and ESCA results above, we proposed mechanisms of plasma grafting (Figure 7).…”

Antibacterial and antifungal LDPE films for active packaging

“…There are several methods for the introduction of antimicrobial activity into polymeric materials, which include incorporating antimicrobial agents directly into the polymers, coating antimicrobials onto polymer surfaces, immobilizing antimicrobials by chemical grafting or using polymers that exhibit intrinsic antimicrobial properties (e.g. chitosan) .…”

Natural dyeing and antibacterial activity of atmospheric‐plasma‐treated nylon 6 fabric

“…Several studies have been carried out on the antibacterial treatment of nylon fibres. Quaternary ammonium salts have been used to impart durable antibacterial properties to nylon textiles . The antibacterial effect for gram‐positive and gram‐negative bacteria on polyamide fabrics was studied by deposition of silver nanoparticles from colloids .…”