How is the Precipitated Silica Applied in Sealants and Adhesives?
The sealants and adhesives are very important material required by many industries. The key points for these kinds of products are: high viscosity, fluidity, and quick solidifying.How can we obtain all these functions? With the new research for applications of the precipitated in different fields, we now find that if we add the precipitated silica into the sealant and binder products, will help achieve all the above functions. Adding silica to the sealants quickly forms a silica structure, that is, the nano-Si02 particles form a network structure to inhibit colloidal flow and speed up solidifying, improve the bonding effect, due to the small particles of hydrophobic silica, will also increase the product's sealing function and impermeability. More and more manufacturers of ad-hesives, sealants have chosen our JS-682 hydrophobic silica products as thickening agents, rhe-ology modifiers and thixotropes. For the more economic choice, our JS-185C Silica can also be used as thickening agent. The other functions for adding silica in the sealants and adhesives products are keeping the product transparent and achieve desired rheology properties and an-ti-sag/suspension performance with minimal impact on other system properties.