With the rising demand for high-performance materials, it is difficult for a single material to meet the multiple requirements of modern industry for heat resistance, mechanical strength, insulation and aging resistance.Silicone resin has become a hot topic in material modification in recent years because of its excellent high temperature resistance, weather resistance, electrical insulation and hydrophobic properties.In particular, the composite of silicone resin with various inorganic fillers has become an effective means to improve its overall performance.


Among the many inorganic fillers, nano-silica, aluminum hydroxide, mica, kaolin and calcium carbonate are widely used in silicone resin composite systems.These fillers can not only enhance the mechanical strength, thermal stability and corrosion resistance of the material, but also improve its dimensional stability, flame retardant and dielectric properties.For example, after adding nano-SiO₂, the thermal decomposition temperature of silicone resin can be increased by more than 30℃, while showing better electrical insulation and thermal conductivity.


In addition, the surface modification of inorganic fillers is also a key part of the research.Through the use of surface treatment agents such as silane coupling agents, the interfacial binding ability between the inorganic filler and the silicone resin matrix can be significantly improved, the filler agglomeration can be prevented, and the dispersion can be improved, so as to achieve better composite properties.


In recent years, researchers have also actively explored the use of multifunctional nanocomposite fillers, such as carbon nanotubes, graphene, nano-alumina and other high-performance materials, which are synergistically enhanced with silicone resins to make them show greater application potential in high-end fields such as electronic packaging, high-voltage insulation, electrical potting, and aerospace coatings.


In addition to traditional filling modification, the application of new processes such as sol-gel method, in situ polymerization, and plasma treatment has also given silicone resin inorganic composite materials more room for structural regulation and performance optimization, further expanding their applicability in the field of high-end functional materials.


Overall, the composite of silicone resin and inorganic materials is an important direction to achieve the preparation of high-performance and high-reliability materials.In the future, with the continuous progress of functional filler development and interface regulation technology, composite silicone resins will play a more central role in new energy, electronic packaging, protective coatings, intelligent manufacturing and other fields.