Hydrophobic fumed silica is easy to disperse and has good dust-free effect. This product generates nano-silica, and then uses nano-technology to perform surface hydrophobic modification to make the nano-material hydrophobic, reduce the agglomeration of silica particles, and increase the dispersion of nano-particles. No reunion. Conducive to customer use.
It has good effect on plastics, rubber, non-oily coatings, paints, glues, etc. Can be used in ethyl acetate, butyl acetate, solvent oil, etc.
Advantages
Hydrophobic fumed silica has good hydrophobic effect. Does not disperse in water. Ethyl acetate, solvent oil, isopropyl alcohol, etc. dissolve and disperse easily and quickly, with low viscosity. Mixes easily with resin and has low viscosity. It is beneficial to dispersion under shear, reduces the viscosity of resin blends, and optimizes processing performance.
Rubber and plastic resins can be fused well, have high density, and are easily dispersed in polymer materials. The interface compatibility of polymers is good, and the surface coating layer can produce a bonding reaction with the groups of the base resin, reducing the viscosity of the blend, eliminating interface stress concentration, and improving the mechanical properties of the composite material.
Fumed silica is not hydrophobic. Ethyl acetate, isopropyl alcohol, etc. are difficult to dissolve and disperse, and have high viscosity. Difficult to disperse in resin. Due to the different surface groups, it is difficult to disperse in the resin system and has poor interfacial fusion.
Advantages
After using hydrophobic fumed silica, the surfaces of plastics, rubber, coatings, paints, etc. are smooth, wear-resistant, and dense. Paint paint coating has good toughness and high strength.
Fumed silica (non-activated) has a rough surface, is not wear-resistant, and is not dense. Paint paint coating is average and has low strength
Advantages
Hydrophobic fumed silica is almost dust-free and environmentally friendly. Good operating environment
Fumed silica is prone to dust when used, and the operating environment is harsh
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