Preparation and Characterization of UV Curing Silver-Loaded Graphene/Polyurethane-Acrylate Antibacterial Emulsion
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    Abstract:

    The double bond was introduced on the surface of the isocyanate functionalized graphene adsorbing silver ions by in-situ polymerization. Which will next be doped with the polyurethane-acrylate emulsion. And then silver-loaded graphene/polyurethane-acrylate (IGAH/WPUA) emulsion was prepared by ultraviolet curing. The structure and properties of the composites were characterized by FTIR, XPS, XRD, TEM, SEM, antibacterial properties, mechanical properties and electrical properties. Moreover, the effect of IGAH mass fraction and illumination time of composite was investigated. The results show that the performance tends to be stable when the IGAH mass fraction is 2% (based on the mass of WPUA). After washing 144 h, the antibacterial rate against Escherichia coli and Staphylococcus aureus can still reach 99.9% and 99.5%. The volume resistivity is 1.16×107 Ω·cm, and surface resistance is 3.75×108 Ω. These confirmed that the composite material has excellent antistatic property. T10% increases from 296.51 °C of pure WPUA to 308.50 °C.

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History
  • Received:March 28,2019
  • Revised:June 18,2019
  • Adopted:June 19,2019
  • Online: November 06,2019
  • Published:
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