Self-Templating Synthesized Silica Nanocapsules and Fabrication of Nanocomposite for Enhancing the Anti-Felting of Wool Fabrics

Abstract

In this study, silica nanocapsules within silica shell (SNPs) based on an amphiphilic silica precursor polymer – poly (ethylene glycol) substituted hyperbranched polyethoxysiloxane (PEOS-m PEG) was synthesized through a self-assembly method in a fully aqueous with high efficiency. SNPs was homogeneously distributed in waterborne polyurethane to study the influence on the mechanical properties of the nanocomposite as a novel anti-felting agent for wool fabric. The mechanical properties of the nanocomposite anti-felting agent films improved in comparison with the neat polymer. The storage modulus and tensile strength was increased by 143% and 49%, respectively. The novel nanocomposite anti-felting agent was coated on wool fabrics by a pad-dry-cure process. The area shrinkage of the obtained wool fabrics with nanocomposite was 0.8%, much lower than the fabric treated with the same dosage of neat polymer, 4.1%. The warp tensile strength of the wool fabric was increased to 212.2N with lower polymer consumption by 40%.

Study on the structure-activity relationships between superimposed polymer membranes based on graphene doped cationic hydrophilic polyurethane and the pilling & static resistance of coated cashmere fabrics

“…The mechanical properties of the nanocomposite antifelting agent films were improved in comparison with the neat polymer, and correspondingly the pilling-resistance of textiles was improved. 17 In addition, on the basis of the controllable "addition processing" treatment, functional materials have been properly treated on the fiber surface to give full play to their antistatic and antibacterial functions. The graphene, which has the unique electrical, mechanical and thermal properties, is currently under research phase for its functional applications in the field of textiles.…”

“…The mechanical properties of the nanocomposite anti-felting agent films were improved in comparison with the neat polymer, and correspondingly the pilling-resistance of textiles was improved. 17…”