Resin-based composite materials are light, high-strength, and corrosion-resistant. However, in recent years, the material industry and the national economy pillar industries have higher requirements for the performance of resin-based materials. How to synthesize high-performance resin-based composite materials has become An important topic in the current material and business world. The advent of fumed silica has provided a new opportunity for the synthesis of resin-based composites, providing a new way for the modification of traditional resin-based materials, as long as the fumed silica (gas phase white carbon black) particles can be Fully and evenly dispersed into the resin material can completely achieve the purpose of comprehensively improving the performance of the resin-based material.

1. Improve strength and elongation.
       Epoxy resin is a basic resin material. Fumed silica is added to epoxy resin. It is structurally different from epoxy resin-based composites added by coarse-grained silica. Adding agent, it is mainly distributed in the chain of polymer materials, and nano silica has strong activity due to serious surface coordination, large specific surface area and surface under oxygen. It is bonded to the oxygen of the epoxy ring molecule to improve the bond between the molecules. In the same fashion, a part of the nano silica particles are still distributed in the voids of the polymer chain, compared with the coarse silica particles. The high flowability is achieved, so that the strength, toughness and ductility of the epoxy resin material added by the vapor phase nano-silica are greatly improved.

2. Improve wear resistance and improve the surface finish of the material.
       The gas phase nano-sized silica particles are 100-1000 times smaller than ordinary silica, and are added to the epoxy resin to facilitate the drawing into filaments. Due to the high fluidity and small size effect of the gas phase nano-silica, the surface of the material is more dense and fine, the friction coefficient becomes smaller, and the high strength of the nanoparticles makes the wear resistance of the material greatly enhanced.

3, anti-aging performance.
       A fatal weakness in the use of epoxy resin matrix composites is poor anti-aging performance. The main reason is the ultraviolet radiation and long wave action of the solar radiation in the 280-400 nm band. Its damage to the resin matrix composite is very serious. The degradation of the polymer chain causes the resin-based composite material to age rapidly. The gas phase nano-silica can strongly reflect the ultraviolet rays, and the addition of the epoxy resin can greatly reduce the degradation of the epoxy resin by the ultraviolet rays, thereby achieving the purpose of delaying the aging of the material.