Preparation method for antibacterial nanocomposite fiber materials containing organic intermediates or free-radical scavengers

摘要

The invention relates to a novel preparation method for antibacterial nano metal composite fiber materials containing organic intermediate or free radical scavengers. The technology for the invention mainly uses gamma-ray radiation to a solution mixture containing PAA (polyacrylic acid intermediate) or IPA (Isopropyl alcohol free radical scavenger) and silver nitrate solution to induce crosslinking or grafting on Nylon or PET fiber surface and produce nanocomposite fiber products with excellent antibacterial ability. The main reaction mechanism is through PAA or IPA as additives to assist silver particles in adhering firmly onto Nylon or PET fiber surface. With good thermal stability and chemical stability silver is considered as an excellent inorganic antibacterial agent. It can easily react with enzyme-protein molecules in bacteria and achieve sterilization effect by destructing cell surface and killing the bacteria. The antibacterial testing report indicates Nylon and PET fibers containing nano silver have excellent antibacterial ability. The invented product can be used for functional textiles for medical applications, personal products and manufacturing environment.