Sinocure® 819(920)
Chemical Name:Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
Synonym: Irgacure 819;Omnirad 808;Omnirad 819;Sinocure 819;Photoinitiator BAPO;Speedcure BPO;CGI 819;Chivacure 789;GENOCURE BAPO;Photoinitiator 920;Sinocure 920
Cas No.: 162881-26-7
Chemical Structure：
Standard：
| Items | Specifications |
| Appearance | Pale yellow powder |
| Assay (HPLC) | ≥99.0％ |
| Melting point | 129~133°C |
| Volatiles | ≤0.2% |
| Acid value(Mg KOH/g) | ≤0.2 |
| Ash | ≤0.1% |
Absorption Spectrum:
Function & Applications:
Sinocure® 819 can be used in printing inks and prepreg systems for wood, metal, plastic, paper and optical fiber surfaces. In white coatings, colored coatings and inks containing titanium dioxide or other high hiding pigments, adding a small amount of Sinocure® 819 can make the coating have excellent curing effect and UV yellowing resistance. Due to its excellent absorption properties, Sinocure® 819 can be used in thick film systems.
Sinocure® 819 can be used in combination with other photoinitiators, such as Sinocure® 184 or Sinocure® 651. The combination of Sinocure® 819 and Sinocure® 651 is particularly suitable for curing polyester/styrene resin systems, such as glass fiber reinforced materials.
Due to its absorption in the long wavelength band, Sinocure® 819 can be used in combination with UV absorbers (such as Sinosorb® 400) and can therefore be used in UV-curable coatings that require weather resistance.
Reference dosage:
| ▶Clear acrylic and unsaturated polyester/styrene coatings |
| 0.1- 0.2% 819 + 1-2% 184 |
| ▶White acrylic and unsaturated polyester/styrene coatings |
| 0.5-1% 819 + 1-2% 184 |
| ▶Colored acrylic formulations |
| 0.5-1% 819 + 1-2% 184 |
| ▶White screen printing inks |
| 0.5-1.5% 819 + 1-2% 184 |
| ▶Fiberglass reinforced unsaturated polyester/styrene prepregs |
| 0.1- 0.2% 819 |
Packaging and Shipping:
Packing:20kg/carton box.
Delivery:with in 5-7 working days.
Storage:
Stored in a cool dry place out of direct sunlight.
Details
| Chemical Name | Photoinitiator 920;Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide |
|---|---|
| CAS No. | 162881-26-7 |
| Molecular Formula | C26H27O3P |
| Assay | 99%min |
| Package | 20kgs/carton |
Torri –
Very useful photoinitiator!