The preparation and properties of glass powder reinforced epoxy resin

A sealing composites were prepared by mixing superfine glass powder and epoxy resin. The effect of active agent (stearate) on glass powder size and size distribution and the effect of surface treatment of the glass powder on the microstructure and the mechanical properties of glass powder/epoxy composites were investigated. Glass powder size was measured using a laser particle size analyzer. The composite structure and property were investigated by means of SEM, material testing machine and thermo-gravimetric analysis (TGA). The results show that the adding of appropriate active agent during the grind process can reduce the glass powder size and size distribution. The results also show that the composite mechanical properties and thermostability are greatly improved by surface treatment of glass powder.