Silica microspheres are inherently hydrophillic and negatively charged. These particles provide higher opacity than glass microspheres and are often used as contrast particles. Aqueous suspensions of silica microspheres rarely require the use of surfactants or stabilizers. Silane coatings enable silica microspheres to be modified to generate functional groups or alter surface properties. Additional advantage of silica microspheres is glass transition temperature of over 1000 degrees Celsius, which makes them suitable for high temperature applications. Silica microspheres and nanospheres are composed of synthetic amorphous silica made in a laboratory batch environment.
Cospheric LLC is a global supplier of NIST-traceable precision spheres, microspheres, beads and microparticles for R&D and industrial applications. The company carries over 2,000 products in variety of materials, densities, colors, coatings, sizes and properties developed based on customers’ needs. Custom products can be developed to meet customer’s specifications. Most of the products are in-stock and ship within 1 business day.
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