▎ 摘　　要

Silver nanoparticles (AgNPs) are widely adopted in polyurethane foams (PUFs) as a type of antibac-terial agent. However, due to its poor interfacial interaction, AgNPs are difficult to be dispersed in the polymer matrix uniformly, which deteriorates the enhancement effect. In this paper, silver-coated graphene nanocomposite (Ag/GO) is prepared by an enzyme reductant which is efficient and non-toxic. Compared with traditional antibacterial agent, the Ag/GO nanoparticles can be uniformly dispersed in the nanocomposite, which means that Ag/GO can be well-dispersed into the polyurethane foams (PUFs). Compared with AgNPs modified PUFs, the as-prepared Ag/GO modi-fied PUFs have a 1.85% improvement in resilience, 7.9% improvement in tensile strength, 6.52% improvement in tensile elongation, and 8.74% improvement in bacteriostats rate at a loading of 0.4%.