The effect of surface treatment of composite polypropylene fibers on their properties

Composite materials containing zinc sulfide nanoparticles on the surface of microgranules of ultrafine polytetrafluoroethylene were obtained by thermal decomposition. The obtained materials were used to modify polypropylene fibers. The obtained filaments were examined by X-ray phase analysis and electron microscopy. Their mechanical and antibacterial properties have been studied. The particle sizes range from 7 to 30 nm. The application of the modifier makes the manifestation of edge defects less noticeable, which has a positive effect on their mechanical properties, such as modulus of elasticity and tensile strength. In addition, modification of polypropylene fibers leads to an increase in the antimicrobial properties of the modified thread.