Fumed Silica

Fumed silica, also known as pyrogenic silica because it is produced in flames, is manufactured through the transformation of microscopic amorphous silica droplets into cross-linked three-dimensional secondary particles at high temperature, followed by the formation of final aggregates. When used as a thickener or reinforcing filler, it increases viscosity and exhibits thixotropic behavior as a result of its three-dimensional structure. Fumed silica is obtained through pyrolysis of silicon tetrachloride in flames (hydrolysis in the flame of O2 and H2 gases) or by vaporizing quartz sand in an electric arc at 3000°C. The resulting product has a large specific surface area, and its commercial name varies according to the specific surface area.

About KCC

Founded in 1958, KCC has introduced numerous innovations in the sectors in which it operates over five decades. Operating in many different sectors from paints to plastics, from silicones to adhesives, KCC is one of the major companies in South Korea and the world, and continues its operations in our country. With more than 5,000 employees, R&D investments, and its commitment to innovation and high quality, KCC has proven its quality in many countries worldwide and achieved great success. KCC's fumed silica product D-200, which is produced by KCC and distributed in Turkey by Asil Kimya, has attracted considerable attention throughout Turkey due to its quality and competitive pricing.

D-200

D-200 is a synthetic, amorphous, hydrophilic fumed silica that Asil Kimya successfully sells and that is successfully used by our customers worldwide. D-200 has very high thickening effect. Particle size is 12 nm. The specific surface area of these non-porous particles is 200 m²/g. Hydrophilic silica containing high-density amorphous silicon dioxide can be wetted with water or dispersed.

D-200 Properties

•Used in rheological effects and thixotropy control for liquid systems, binders and polymers. •Has thickening, flow and sedimentation preventing properties. •Used as an additive for silicones and rubber. •Improves free flow properties of powder products and prevents caking.

Application Areas

D-200 serves as a universal thickening agent and anti-caking agent (free flow provider) for powder systems. Other applications include adjusting viscosity for paints and coatings, printing inks, adhesives and unsaturated polyester resins. •Paints and coatings •Unsaturated polyester resins and gel coats •Adhesives •Printing inks •Cable jellies •Marine paints

Packaging

D-200 is sold in 10 kg kraft packaging. Alper Bağcık Technical Sales Director Asil Kimya

Sources

Otto W. Flörke, et al. Industrial Chemistry, 2008, Weinheim Ullmann Encyclopedia "Silica". Wiley-VCH doi : 10.1002 / 14356007.a23_583.pub3 . Garrett, PR (1992). Defoaming. Theory and Industrial Applications. USA: CRC Press. pp. 239-240. ISBN 0-8247-8770-6 .