tailieunhanh - Study on the effect of nano-silver on the properties of nanocomposite based on unsaturated polyester

The masterbatch of unsaturated polyester (UP)/nano-silver obtained by using the Unidrive X1000 CAT mixer at 14000 rpm in 50 mins. The field emission scanning electron micrograph showed the flock of nano-silver has burst into smaller clusters and dispersed evenly in UP. The viscosity of matrix resin containing different nanosilver contents was almost unchanged except 100 ppm. Moreover, the presence of nano-silver has prolonged the gel and curing time but increased maximum exothermal temperature of emission. In general, the presence of nano-silver improved strongly in mechanical properties of composite especially nano-silver content of 60 ppm. Two bacterial strains: gram-positive bacterial () and gram-negative bacterial () were used to evaluate the antibacterial property of sample. The results showed matrix resin without nano-silver possessed antibacterial property with both strains. The presence of nano-silver raised the gram-positive antibacterial property but reduced gram-negative antibacterial property of matrix resin. |

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