Hollow glass microspheres are a new type of inorganic non-metallic sphere materials with small particle size, spherical, light, heat insulation, sound insulation, high temperature resistance, versatility, so it can be used as a key ingredient in composite foams, can also be used as special material, hollow glass microspheres in aerospace, deep sea exploration, nuclear fusion, hydrogen, drug Diagnostics has important applications in the field.
As a lightweight reinforced filler, hollow glass microspheres are used to fabricate composite foam is by far the most important use of hjollow glass microspheres. It is unique: hollow glass microspheres are hollow structures, low density, low thermal conductivity, can not only significantly reduce the density of the composite material, also gives them excellent heat and sound insulation properties; Second, the hollow glass microspheres are spherical, with ideal filler for low porosity, the advantages of pearl body absorbs less resin and little influence on the viscosity of the polymer matrix and liquidity, improved stiffness, hardness, dimensional stability of composites.
It must be pointed out is that hollow glass microspheres are inorganic non-metallic materials, the polarity and the polymer matrix are different, both poor compatibility, direct or lead composites filled with too much performance degradation. Therefore, the required prior to filling surface modification processing of microspheres, which is key to improving the performance of composite materials.