The main role of talc powder in waterborne coatings
The main role of talc powder in waterborne coatings
1, as a filler used to reduce the cost of paint, which is based on the structure of talc powder and its own low cost.
2, increase the physical and chemical properties and maintain the stability of the paint system. Since the molecular structure of talc is layered, it can be uniformly dispersed in the resin in a layered manner when used in coatings, and has good compatibility with the resin and complementarity of mechanical properties. Just like the reinforced steel structure network embedded in the concrete, it can maintain the advantages of the paint itself, but also can form an enhanced support structure with excellent mechanical properties and improve the physical properties of the product.
3, increase the weatherability and insulation of the coating. Due to the chemical properties are not active, but also has acid and alkali resistance, insulation, added to the paint can also reduce the aging of the paint, weathering and improve the electrical insulation properties.
4, as an auxiliary matting agent. Due to its special structure, after the medium coating film is added to the coating, the surface forms diffuse reflection, which can be used as a matting agent and increase the stain resistance of the coating.
