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A solvent-free graphene oxide nanoribbons colloids(GONRs-M2070)was achieved and evaluated by grafting organosilanes(KH560)and polyether amine(M2070).Epoxy composites were then prepared with the GONRs-M2070 colloids based on the in-situ blending method to investigate its effect on the mechanical,thermal and tribological properties of the resulting composites,as well as the distribution of GONRs-M2070 in the host materials.The results suggested that the GONRs-M2070,which could disperse and exfoliate well in the epoxy resin,had been successfully synthesized based on the graphene oxide nanoribbons.In addition,it was found that the addition of 0.6 wt％GONRs-M2070 can simultaneously enhanced mechanical,thermal and tribological performance of the resulting epoxy composites.For example,compared with neat epoxy resin,the 0.6 wt％GONRs-M2070 improved the flexural strength,impact strength and glass transition temperature by 16.2％,83.9％and 32.5％,respectively.Moreover,a lower friction coefficient(0.19)and wear rate(7.65×10-5g/min)were also observed at 0.6 wt％GONRs-M2070.The obtained results along with the solvent-free nature indicated that combining epoxy resin with GONRs-M2070 specially provided a green and efficient route to improve the wear resistance and decrease the friction coefficient of resin-based composites.