【Deep coating society popular science knowledge】Fumed silica: resin material additive

Polymer products exist in all aspects of our lives, and the plastics, rubber, silicone rubber, chemical fibers, coatings, sealants, adhesives, etc.
around us are all products
of the polymer industry.
As a universal additive, pyrogenic silica has a miraculous effect
in the polymer industry.

Resin matrix composites are fiber reinforced materials based on organic polymers, which are widely used
in aerospace, automotive, pressure vessels, wind turbine blades, and marine industries.
Scientific experiments have shown that the full and uniform dispersion of pyrogenic silica particles into the resin material can achieve the purpose of
improving the properties of resin-based materials.

In thixotropic polyester resin, the additive used is silicon dioxide (SiO2), on the one hand, it can make the thickness of the product more uniform, shrinkage small, more in line with the design requirements, on the other hand, make the resin thixotropic, reduce the flow and dripping of resin, reduce the waste of resin, and protect the production environment
.

Fumed silica has a large specific surface area and surface under-oxygen characteristics, with strong activity, epoxy resin is the basic resin material, the fumed silica added to the epoxy resin, it is easy and epoxy cyclic molecules oxygen bonding, can improve the bond force between molecules, so that pyrogenic silica added epoxy resin material strength, toughness, ductility are greatly improved
.

Source: Songshan Boron Industry

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