| ABS resin is a kind of engineering plastics with excellent performance and widely used in household appliances,automobiles,machinery and other industries.However,the disadvantage of ABS resin is also obvious,such as poor weather resistance,low ignition point et al.With the development of era and standard of living are increasing now,the material requirements of application field are becoming more and more high,and the single resin couldn’t meet the demand.To meet the growing demand,human being make matrix polymer with many excellent properties through adding filler in the resin,leading to the blending materials become one of the most promising materials.However,there are many types of fillers,the silica microspheres which one of the current application more filler has a unique effect,excellent mechanical properties and thermal stability is payed attention.In this paper,a lot of different diameters of silica microspheres were prepared by Stober method,and the SiO2/ABS composites were prepared through melt-blending method by adding these microspheres into ABS resin.Mechanical,scanning electron microscopy(SEM),mechanical tests,dynamic mechanical analysis(DMA)and thermo-gravimetric analysis(TGA)were applied to characterize content,diameter and surface modification agent of silica microspheres how affect composite materials’properties.The results indicated that the silica microspheres had a good dispersion.The mechanical,dynamic mechanical and thermal properties were best with a compromise on toughness of composite when the mass fraction of silica microspheres was 3%with 710±11 nm.The similar results were obtained when the diameter of silica microspheres was 710±11nm at a mass fraction 3%.And the mechanical and dynamic mechanical properties results were observably improved when silica microspheres’ surface was modified with a little compromise on toughness of composite,and the thermal properties indicated that there was almost no influence when silica microspheres’surface was modified by vinyl triethoxy silane(A-151). |