Nano materials colloidal silica
Basic Info
Model No.: 7631-86-9
Product Description
Silica sol &Colloidal silica
Silica sol is a colloidal solution, odorless and non-toxic. Silica sol is a dispersion of nano-scale silica particles in water or solvent. Since the SiO2 in the silica sol contains a large amount of water and hydroxyl groups, the silica sol can also be expressed as SiO2.nH2O.
Specification
| Content(%) | Na2O(%) | PH value | Density(g/cm3) | Viscosity(mPa.s) | Partical size | Shelf life |
| 29-31 | ≤0.4% | 9.0-11.0 | 1.19-1.21 | ≤10 | 8-20 | 24 months |
Application
The composite exterior wall coating made of silica sol as the main film-forming material, synthetic emulsion (such as styrene-acrylic emulsion, vinyl acetate resin emulsion) as the auxiliary film-forming agent, plus pigments, fillers, and additives, does not adhere to the material The surface adhesion of general coatings is the result of penetration and hardening. It has the advantages of both inorganic and organic coatings. Silica sol is used as the base material of architectural exterior wall coatings, which can make the coating firm, have good adhesion, and have the functions of anti-fouling, dust-proof, aging resistance, and fire resistance. However, the general silica sol will freeze below 0°C and can no longer be melted Recovery, this irreversibility caused a significant defect that the silica sol coating cannot be applied in winter. If one or more long-chain glycols with more than 3 carbons and water-soluble melamine are added to the silica sol, the finished silica sol coating can be applied in winter and has low-temperature storage stability. It can be sprayed, rolled or brushed It does not require organic solvents, and does not require heating and drying after coating. It is especially suitable for interior and exterior walls of concrete, mortar and slate buildings. The coating film has good hardness, no cracks, and excellent performance.
Package
Quality Test Center
Our Company
Founded 2010, Jinan Huijinchuan Trading Co., Ltd. is trading so many kinds of chemicals for over 10 years.
Our main products:HJC-Tracy:
Our Main products :Building Material additive,Water treatment raw material,Metal surface treatment material,Pigments and dyes,Fertilizer raw materials,Food additive
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.
Product Categories : Other Chemicals > Other Chemical Raw Materials