Recently, the first set of foam coal washing and slime drying system in our province was formally put into use by Huating Coal Industry Group Daliu Coal Mine Company. According to reports, the Mojing coal washing system uses heavy medium cyclone separators, mainly used for washing foam coal below 13mm. After it is put into operation, more than 1,300 tons of foam cleaning coal is washed daily. The coal ash content is kept below 8%, and the calorific value is kept above 5,500 kcal/kg. As a chemical feedstock, coal is sold to the market. The investment of this system has effectively improved the quality of coal and enhanced the market competitiveness of the product. At the same time, Huating Coal Group actively took measures to increase the added value of coal, increase economic and environmental benefits, and built the first set of slime drying system in our province. The coal slime after pressure filtration was dried to form coal by-products and entered as low-quality coal. Market sales, the application of this system has not only increased the added value of coal products, but also made coal slime generated during the washing process has been put to use, effectively solved the environmental problems of coal slurry heap pollution. Matting Agent For Acrylic Coating Matting Agent 7631-86-9,Silica Matting Agent,7631-86-9 Coating Agent,Nano Size Silica Guangzhou Quanxu Technology Co Ltd , https://www.inkjetcoating.com
Silica is often used as a Matting Agent in acrylic coatings due to its ability to scatter light and provide a non-glossy, dull finish. This results in a more subtle, less reflective surface.
The silica can be in the form of colloidal silica or Fumed Silica. Colloidal silica is typically a fine, stable dispersion of silica particles in water or an organic solvent. Fumed silica, on the other hand, is produced by the high-temperature reaction of silane or siloxane vapors with oxygen, resulting in ultrafine, spherical particles.
When used in acrylic coatings, these silica particles are dispersed throughout the coating film. As light hits the surface, it is scattered in multiple directions due to the irregular shape and size of the silica particles. This scattering effect diminishes the intensity of reflected light, leading to a matte appearance.
In addition to providing a matting effect, silica can also enhance the physical properties of the coating, such as improving the film's hardness, adhesion, and abrasion resistance. It may also help to stabilize the formulation and improve the flow and leveling properties of the coating.It's important to note that the amount and type of silica used can significantly affect the final appearance and performance of the coating. The particle size, surface area, and dispersibility of the silica will all play a role in determining the desired level of matting and the overall characteristics of the finished product.
