摘要

Herein, a polymer dispersant is used to modify zincoxide (ZnO) nanoparticles with the assistance of a self-made dispersiondevice to produce nanofluids with excellent dispersion. The ZnOnanoparticles can be well dispersed in an aqueous solution in a highproportion (20 wt %). The average size of ZnO nanoparticles dispersedin nanofluids is 86.5 nm. After testing and analysis, the ZnO nanofluidshave excellent antibacterial, antifungal, and formaldehyde and tolueneremoval performance. The antibacterial rate of 4% ZnO (w/v) canreach 99.99%. It has been verified in pure milk that ZnO can well inhibitfungi and deterioration. These satisfactory characteristics of thenanofluids are all attributed to the excellent dispersion of ZnOnanoparticles. In addition, the dispersed ZnO nanoparticles are used tomodify polymer materials (polypropylene random and low-densitypolyethylene), endowing them with excellent antibacterial and mechanical properties. Therefore, they are expected to be used infood packaging materials in the future.

  • 单位
    南方医科大学; y