Specific manifestations of adhesion
1. Forming a hard gel structure: Silica sol itself will produce a certain bonding strength after air drying. If it is mixed with fiber or granular material and dried and solidified, it can form a hard gel structure, significantly improving the adhesion. This adhesion makes silica sol widely used in textile, papermaking, coating and other industries.
2. As a catalyst carrier: The high adhesion of silica sol can fix the catalyst on the carrier to prevent it from precipitating or losing, thereby enhancing the efficiency and selectivity of the catalytic reaction.
3. Forming a continuous and highly adhesive hard film: Silica sol remains stable in a wide range of pH values and can independently form a continuous and highly adhesive hard film under specific conditions, such as a film with a thickness of 1 micron. The formation of this film further proves the adhesion of silica sol.
Specific manifestations of fluidity
1. Excellent filling performance: Silica sol has excellent fluidity and can better fill the fine structure of the mold to ensure that the details of the casting are effectively reproduced. This fluidity makes silica sol perform well in precision casting, coating and other fields.
2. Easy to apply: In the coating industry, the application of silica sol makes the coating easier to apply and can form a uniform coating. This fluidity helps to improve the construction efficiency and coating quality of the coating.
3. Fast drying: Silica sol dries quickly, which can shorten the preparation time before casting or coating drying and speed up production progress. This fast drying characteristic is also a manifestation of its fluidity.