Silica And Silicon Dioxide Additive In Acrylic Paint

HF-4954A Silica Addtitive

In acrylic coatings, silica additives (especially nano-silica) are widely studied and applied to improve various properties of coatings. The

application of nano-silica in acrylic coatings is mainly reflected in the following aspects:

Improvement of mechanical properties: The addition of nano-silica significantly improves the mechanical properties of acrylic polyurethane

anticorrosive coatings. Studies have shown that the effect is best when the mass percentage of nano-silica is 2%-4%. In addition, nano-silica

can also enhance the wear resistance and impact resistance of the coating.

Corrosion resistance and chemical stability: By adding silica nanoparticles, acrylic coatings have obtained better corrosion resistance and

chemical stability. This modification not only improves the transparency and non-yellowing property of the coating, but also enhances its

protective properties.

Dispersion and agglomeration problems: In order to improve the dispersibility of nano-silica in the coating, an organosilane coupling agent is

usually used to treat the silica surface to reduce its agglomeration. This helps to improve the overall performance of the coating.

Matting effect: As a Matting Agent, Fumed Silica can reduce the gloss of acrylic paint. When the added amount reaches a certain proportion,

an ideal matting effect can be achieved.

Other functions: In addition to the above properties, nano-silica can also be used in coatings as a rheological additive, anti-sagging agent,

anti-settling agent and anti-caking agent. These functions make silica a multifunctional additive.

In short, the application of nano-silica in acrylic coatings can significantly improve the mechanical properties, corrosion resistance,

chemical stability and matting effect of the coatings, and through proper processing and dispersion technology, the agglomeration

problem of nanoparticles can be effectively solved, thereby optimizing the overall performance of the coating.

Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent