HALLOYSITE NANOCLAY (C005B-015275)

General description

Halloysite nanoclay has a tube like morphology. It shows low electrical, thermal conductivity and strong hydrogen interactions, on account of which the inner hydroxyl groups show greater stability than the surface hydroxyl groups in halloysite. The loss of hole water occurs at nearly 300 °C.
Similar to montmorillonite, halloysite consists of two layers of aluminosilicate in 1:1 Al:Si ratio. Significant improvements in thermal, mechanical properties have been reported on addition of halloysite nanotubes in polymer composites.

Application

Halloysite is frequently used as a reinforcement in various nanocomposites, some of which are listed here:
Isotactic propylene-halloysite nanocomposites.
Alloy composites by electroless/ autocatalytic deposition.
Poly(butylene terephthalate) (PBT) composites.
Zinc–halloysite nanotube (HNT) composite coatings.
Halloysite nanotube–hydroxyapatite–hyaluronic acid films.
Halloysite combined with polyamide, polypropylene, poly(ε-caprolactone) and fluroelastomers.
Its tube like morphology, high aspect ratio, and low percolation enables interesting applications as reinforcements in nanocomposites.

Legal Information

Product of Applied Minerals, Inc. Customers may obtain additional technical support and purchase commercial quantities at appliedminerals.com

Molecular Weight: 294.19. Empirical Formula: H₄Al₂O₉Si₂ · 2 H₂O. linearFormula: Al₂Si₂O₅(OH)₄ · 2 H₂O. form: nanopowder. Quality Level: 100. diam. × L: 30-70 . nm × 1-3 . μ. m , nanotube. surface area: 64 . m²/g . color: 75-96, Hunter Brightness. refractive index: n20/D 1.54. pore size: 1.26-1.34 . mL/g pore volume. capacity: 8.0 . meq/g cation exchange capacity. density: 2.53 (true specific gravity). SMILES string: O.O.O[Si](O)(O[Al]: O)O[Si](O)(O)O[Al]: O. InChI: 1S/2Al.H4O7Si2.2H2O.2O/c. . 1-8(2,3)7-9(4,5)6. . . . /h. . 1-2,4-5H. 2*1H2. . /q2*+1. -2. . . . . InChI key: HEFIDAICLOZRRO-UHFFFAOYSA-N. Storage Class Code: 11 - Combustible Solids. WGK: nwg. Flash Point(F): Not applicable. Flash Point(C): Not applicable. Personal Protective Equipment: Eyeshields, Gloves, type N95 (US).