Deposition of polymer complex layers onto nonwoven textiles

Abstract

Polymeric complex layers are deposited onto polypropylene and polyester nonwoven fabrics via the layer by layer method. It is found that grafting after previous surface activation with an aqueous ammonium persulfate solution is a beneficial method to form the first acidic layer. In order to form polymer complexes, poly (acrylic acid), poly(itaconic acid), poly(allylamine hydrochloride), and poly(N-dimethylaminoethyl methacrylate) are used. The deposition of subsequent layers to form polymer complexes modifies the properties of nonwovens. Moreover, it is found that the deposited layers can be microreactors for chemical processes such as polymerization of aniline and formation of polymers and copolymers.

Modifying of Cotton Fabric Surface with Nano-ZnO Multilayer Films by Layer-by-Layer Deposition Method

“…Generally, polyelectrolyte self-assemblies of different textile fibers and structures were studied and these studies investigated only the possibility of using LbL method for textile materials [13-18]. …”

Mechanical Reinforcement of Wool Fiber through Polyelectrolyte Complexation with Chitosan and Gellan Gum

“…To date, only a few papers have described the coating and dyeing of textile fabrics using the polyelectrolyte complexation technique. For example, Polowinski's team has used this technique to modify the surface of textile fabrics to acidic or basic and then treated with the opposite charges [9][10][11]. This process changes the surface charge, hydrophilicity and electro-kinetic potential, as well as improving dye absorbing capability.…”

In Textiles

“…Polypropylene nonwoven of 77.7 g/ sq · m, with an average fi lament diameter of 2.5 μ m, has been made by the melt -blown method and is treated with 20 gm/L ammonium persulfate solution at 80 ° C for 30 min. This chemically treated polypropylene nonwoven is fi rst rinsed with water and then treated with 0.3 M acrylic acid solution at 80 ° C in order to obtain polyacrylic acid grafted polypropylene, which can act as a base for the deposition of polyaniline hydrochloride layer [118] . Such layered textiles become electrically conductive.…”