Facile Preparation of Controlled Release and Antimicrobial Silver Micron-particles

Facile non-solvent induced phase separation and natural drying methods were used to prepare polymer coated micron silver particles. The silver particles coated by the natural drying method showed controlled release rate and simple operation procedure. Compared with uncoated silver particles, the released silver concentration of silver reduced from 10.5(uncoated) mg/L to 0.033 mg/L(polymer-coated). The polymer coated micron silver significantly improves the safety, validity and dispersi-bility (especially in polymer matrix) of antimicrobial silver.