NANOCRYL® D 322 is a 50 wt% dispersion of colloidal silica in a difunctional methacrylate blend (80 % UDMA in TRGDMA), for the use in dental applications. The silica phase consists of surface-modified, synthetic SiO2-nanospheres of very small size (Ø 20 nm), and narrow particle size distribution.
Despite the high SiO2-content NANOCRYL® D 322 is transparent, low viscous and shows no sedimentation due to the agglomerate-free dispersion of the nanoparticles in the monomer.
Typical Applications
NANOCRYL® D 322 can be used as any common UV-curable acrylate. However, the compatibility between NANOCRYL® D 322 and all other components should be tested separately before starting formulation development.
The colloidal silica in NANOCRYL® products tends to agglomerate if the stabilisation is affected by inappropriate formulation components like hydrocarbon solvents (e. g. xylene) or certain performance additives (e. g. several silicones or amines).
The colloidal silica in NANOCRYL® products tends to agglomerate if the stabilisation is affected by inappropriate formulation components like hydrocarbon solvents (e. g. xylene) or certain performance additives (e. g. several silicones or amines).
Benefits at a glance
- Suitable for dental applications
- Enables extremely high loading levels in combination with suitable micron particles
- Significantly improved tear resistance, fracture toughness and modulus
- Lower CTE, reduced shrinkage & thermal expansion
- UV-curable