colloidal silica used in the paper industry

Silica sol &Colloidal silica

Generally speaking, the greater the specific surface, the greater the surface energy. The silica sol system is an unstable system with a large surface energy. It has a tendency to automatically reduce the surface energy, and it is easy for small particles to spontaneously aggregate into large particles, or even form a gel. There are many factors that affect the stability of silica sol, such as electrolyte, temperature, concentration, pH and particle size.

Specification

Application

Silica sol can also be widely used in the paper industry. For photographic paper coated with diazo-type light liquid, if pre-treatment is carried out with silica sol as the main component, or silica sol is mixed with photosensitive liquid, the paper surface can be smooth, the image is clear, and the exposure range can be increased. The crushed metal silicon powder is directly reacted with sodium silicate or potassium silicate heated to a certain temperature, and the high-concentration, low-viscosity silica sol prepared is applied to the surface of the kraft paper or cardboard for packaging cement, which can prevent its accumulation Sliding off, and can improve the moisture resistance and strength of paper products. Treating cellophane with a waxy substance composed of silica sol, glycerin, monostearic acid, etc. can overcome its shortcomings of stickiness at high temperatures, and is often used as an anti-sticking agent for cellophane.

Package

Transportation

FAQ

1.Are you trader or manfacturer?

Both. During the 10 years, we have so many cooporation factories from every chemicals.

2.How can we get sample?

Just contact us, and you will get the sample.

3.How can we charge the sample ?

SAMPLE IS FREE, just pay for the freight.

4.Any questions, just contact us, and you will have the best products and best service.