Qianyuan 1.56 

blue block monomers

 

Methyl methacrylate (MMA) monomers are easy molding. Lenses have high light transmittance as well as high Abbe number, and are efficient in UV and 420nm blue-ray block.

 

Monomer Properties 

Appearance   Light yellow liquid

Viscosity (CPS/25℃ )  25 ± 5    

Density (g/cm3) 1.049

Refractive Index (nE25) 1.512 ± 0.003

Color (APHA ) ≤ 60

 

Lens Properties 

Refractive Index (nE25)  1.553  

Abbe Number (vE20) 42.0  

Density (g/cm3, 25 ℃)  1.157  

Volume Shrinkage (%)  8.9 

Transparency (%)  ≥90 

420nmTransparency (%)  ≤30 

Glass Transition Temp. (℃) 103