Halloysite Nanoclay 100g Sigma-Aldrich

Halloysite nanoclay, available in a 100GM quantity, is a naturally occurring aluminosilicate clay mineral with a distinctive tubular structure. It's characterized by its high surface area, strong adsorption capacity, and ease of dispersion in water. This nanoclay finds applications in various fields due to its unique properties, including enhanced mechanical and thermal characteristics in nanocomposites, controlled drug release in drug delivery systems, and stabilization in cosmetic formulations. Here's a more detailed description:Structure: Halloysite nanoclay consists of nanotubes with an inner diameter of 10-100 nm, an outer diameter of 40-190 nm, and a length ranging from 0.2-1 m. Composition: It has a chemical formula of AlSiO(OH)nHO, similar to kaolin, and consists of two layers of aluminosilicate in a 1:1 Al:Si ratio. Key Properties:

• High surface area: This allows for significant adsorption of various substances. 
• Strong adsorption capacity: Halloysite can effectively bind to and retain molecules. 
• Easy dispersion: It readily disperses in water and other solvents. 
• Low electrical and thermal conductivity: These properties make it suitable for certain applications. 
• Strong hydrogen interactions: The inner hydroxyl groups in halloysite exhibit greater stability compared to surface hydroxyl groups.