Acidic silica sol has a series of unique performance characteristics, which makes it have a wide range of application potential in many fields. The following is a detailed introduction to its main performance characteristics:
High specific surface area
The specific surface area of acidic silica sol is usually between 150-300m²/g, which makes it have extremely strong adsorption capacity. High specific surface area is not only conducive to the adsorption and separation of substances, but also can improve the efficiency and selectivity of catalytic reactions.
Good dispersibility
Acidic silica sol has good dispersibility in water and can form a stable colloidal solution. This characteristic makes silica sol an excellent dispersant for the preparation of various highly dispersible materials.
Excellent high temperature resistance
Acidic silica sol can withstand high temperatures up to about 1600℃, which makes it have significant advantages in high temperature environment. For example, in the preparation of refractory materials, acidic silica sol can improve the refractory temperature and thermal shock resistance of the material.
Good hydrophilicity and oleophobicity
Acidic silica sol has good hydrophilicity and can be diluted to any concentration with distilled water or ion-free pure water, and its stability increases with the increase of dilution. At the same time, when added to organic matter or a variety of metal ions, silica sol exhibits oleophobicity. This property makes silica sol widely used in coatings, inks and other fields.
Good adhesion and wear resistance
The size of the floccules of acidic silica sol is uniform, and it can produce a certain bonding strength when it is air-dried. When silica sol is added to a certain fiber or granular material and then dried and solidified, it can become a solid gel structure with greater adhesion. In addition, silica sol also has good wear resistance and can extend the service life of the material.
High transparency and light transmittance
Acidic silica sol has high transparency and can be used as a raw material for the preparation of high-transparency materials. At the same time, silica sol also has good light transmittance and can be used to prepare optoelectronic materials such as optical films and solar panels.