Dispersion of Zirconia Nanoparticles : ZIRCOSTAR™ High Refractive Index Nanoparticles

Features and Properties

Zirconia nanoparticles with excellent dispersibility, which have been developed used by Nippon Shokubai’s proprietary technology. Ideal for molding and coating materials that require a high refractive index and transparency.

  • Good dispersibility in various organic solvents
    Examples: Methyl ethyl ketone (MEK), Propylene glycol monomethyl ether acetate (PGMEA)
  • • Good compatibility with UV curable acrylic resins and monomers
    Examples: Benzyl acrylate, Isobornyl acrylate, Isobornyl methacrylic acid, N-vinylpyrrolidone, AOMA™, VEEA™, VEEM™
  • • High solid content; Example: 80 wt%
TEM image of Zirconia Nanoparticles

Details of Functions

Dispersion Properties

MEKDispersion Medium
(ZP-153,70wt%)
Benzyl acrylate Dispersion Medium
(HR-101,80wt%)
 ZP-153HR-101
Dispersion Medium MEKBenzyl acrylate
Particle Content 70 wt%80 wt%
Viscosity (at 20°C) 10 mPa·s 1,500 mPa·s
Dispersion Refractive Index 1.531.67
Particle Refractive Index (calculated value) Approx. 1.8
Particle Size 11 nm (dynamic light scattering method)
Crystal structure Tetragonal (main)

Coating Film Properties

 Example AExample BExample C
Particle Content 0 wt%50 wt%80 wt%
Refractive Index 1.511.651.74
Transmittance 90%90%90%
Haze 0.8%0.8%0.8%
Pencil Hardness 2H2H2H
Evaluation Conditions
  • Composition
    Dispersion : ZP-153
    Binder: Pentaerythritol triacrylate (PETA)
    Photo initiator: Irgacure184 (1.5 wt%/solid)
  • Substrate :PET film (Thickness: 100 μm)
  • Cured condition:5 min dried at 80℃ ⇒ UV Cured with 1500mJ/cm2 irradiation
  • Cured film thickness:5μm

Examples of Applications

  • Nanofillers with a high refractive index
  • Examples of Use:Coating Materials for Optical Film,antireflective films,Hard coatings for lenses and mirors,Optical Adhesives,Resist materials,Materials for Optical waveguide forming etc.
  • Materials for adjusting the Abbe number and refractive index
    Examples of Use: Optical lens etc.
  • Dental materials

* Please be sure to read the Chemical Products Safety Data Sheet (SDS) when handling this product.

Nippon Shokubai’s Fine Particles