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Dispersion of Zirconia Nanoparticles : ZIRCOSTAR™

ProductDispersion of Zirconia Nanoparticles : ZIRCOSTAR™
Common NameHigh Refractive Index Nanoparticles
Features

TEM image of Zirconia Nanoparticles

By our original technology, we developed new zirconia nanoparticles with good dispersibility. The new zirconia nanoparticles can be applied to coating materials, molding compounds etc. required transparency and high refractive index simultaneously.

  • Good dispersibility in various organic solvents
    Ex. Methyl ethyl ketone (MEK) / Propylene glycol monomethyl ether acetate (PGMEA)
  • Good compatibility with UV curable acrylic resins and monomers   Ex. Benzyl acrylate,Isobornyl acrylate,Isobornyl methacrylate,N-vinyl-2-pyrolidone,AOMA™,VEEA™,VEEM™
  • High solid content    Ex. 80 wt%
Typical Properties of The Dispersions


Despersion in MEK (Type 1)


Dispersion in benzyl acrylate (Type 2)

  Type 1 Type 2
Dispersion medium
MEK
Benzyl acrylate
Particles content
70 wt%
80 wt%
Viscosity (at 20℃)
10 mPa・s
1500 mPa・s
Refractive index
1.53
1.67
Particle size
11 nm (Dynamic light scattered method)
Crystal structure
Tetragonal (main)

We have already started test marketing of the dispersions.

Typical Properties of The Films
  Example A Example B Example C
Particles content
0 wt%
50 wt%
80 wt%
Refractive index
1.51
1.65
1.74
Transmission
90%
90%
90%
Haze
0.8%
0.8%
0.8%
Pencil hardness
2H
2H
2H

【Evaluation conditions】
Sample: Type 1    UVcuring condition: 1500 mJ/cm2    Film thickness: 5μm    Binder: Pentaerythritol triacrylate

Application
  • Nano-fillers for high refractive index
  • Matching materials for refractive index and Abbe number
  • Raw materials for ceramics

Questions: please feel free to contact us.