Silicon Dioxide (SiO2) Nanopowder/Nanoparticles, Purity: 99.5+%, Size: 15 nm, KH550 Coated

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Silicon Dioxide (SiO2) Nanopowder/Nanoparticles

Purity: 99.5+%, Size: 15 nm, KH550 Coated 

Silicon Dioxide (SiO2) Nanopowder is a surface-functionalized, high-purity amorphous silica nanomaterial treated with a premium silane coupling agent (KH550). Characterized by its ultra-fine nanometer scale and exceptional specific surface area, this specialized powder is engineered to overcome the natural agglomeration tendencies of untreated silica. The chemical modification drastically lowers surface energy, turning the nanoparticles highly compatible with organic polymers and solvents. This ensures uniform dispersion, superior interfacial bonding, and long-term structural stability when integrated into resinous matrices. Backed by flexible surface-treatment load customization tailored to client specifications, this advanced material acts as a highly effective bridge between inorganic fillers and organic polymers.

Technical Properties

Applications

• Advanced Polymer Composites & Engineering Plastics: Functions as a high-efficiency reinforcing filler in epoxy, polyurethane, polyamide, and phenolic resins. The coupling agent pre-applied to the silica surfaces ensures optimal cross-linking between the inorganic powder and the polymer chains, dramatically upgrading the tensile strength, impact resistance, and thermal distortion temperatures of composite materials.
• High-Performance Coatings, Paints & Inks: Extensively utilized in automotive clearcoats, industrial protective paints, and heavy-duty marine finishes. It provides excellent scratch resistance, film toughness, and uniform dispersion while preventing phase separation. Its enhanced organic compatibility enables optimal rheological control and anti-settling properties without compromising optical transparency.
• Functional Adhesives & Structural Sealants: Integrated into high-tech industrial adhesives and electronic sealants to improve cohesive strength and shear stability. It optimizes viscosity, prevents sagging on vertical surfaces, and significantly increases moisture resistance and environmental durability at the joint interfaces.
• Advanced Rubber Compounding & Elastomers: Applied as a dynamic reinforcing agent in natural and synthetic silicone rubbers. It noticeably improves tear strength, abrasion resistance, and vulcanization characteristics, making it ideal for the precision manufacturing of high-durability automotive parts, seals, and aerospace gaskets.