Application of Bismuth Nanoparticles for Textile Materials Protection Against Microwave Radiation

Synthesis of metal nanoparticles which consisted in chemical restoration of solution of bismuth nitrate is carried out. Optimum parameters of bismuth restoration to a zero-valent metal state and its drawing on fabric are developed. Parameters are calculated and the design of the equipment for impact on the metallized textile materials microwave ovens by radiation is developed for the operating laboratory semi-plant. Processing of samples of natural textile fabrics is carried out by bismuth nanoparticles and researches of distribution of nanoparticles in volume of fabric, forms of particles, their size, a way of fixing in volume of material are conducted. Impact on a sample was carried out by the microwave oven in the camera with a standing wave of modular conveyor installation. It is shown that the modified fabric subjected to radiation allows to lower a radiation dose. After the microwave influence strength properties of cellulose materials were defined. Fabrics were exposed to washings by domestic laundry powder after which such physicomechanical properties as change of the linear sizes after wet processings, the explosive and tearing apart loading, rigidity were defined at a bend, air permeability, hygroscopicity, electric resistance, coefficient of weakening of electromagnetic radiation. Material can be used in radio protective clothes with the strengthened partial protection which includes overalls, a helmet, gloves and boot covers made from the radio reflecting materials.