Polypropylene(PP)/Graphite oxide(GO)composites with different GO content were prepared by melt extrusion.The mechanical properties,thermal properties,melting and crystalline prpperties,antibacterial properties of the PP/GO composites were investigated.The results showed that the tensile strength and flexural strength of the composites had no obious improvement compared with pure PP.When the dosage of GO was 1.0％,the impact strength value was 4.62 kJ/m2,which was 1.62 times greater than that of PP,not only that,the composites showed excellent heat resistance property,the softening temperature was increased by above 23.9 ℃.At the same time,the antibacterial rates against Escherichia coli and Staphylococcus aureus of the composites were as high as 50％,implying that the composites had excellent antibacterial property.With the good performance of the PP/GO composites,which could lay an expermental foundation for the future exploitation and industrial application in food packaging material,agricultural and medical products.
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