99.9% purity TPO/photoinitiator TPO/CAS 75980-60-8 for UV adhesive/ varnish
1. Technical indicators:
Name | Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide | ||
CAS NO | 75980-60-8 | ||
Chemical formula | C22H21O2P | Molecular weight | 348.37 |
Appearance | Light yellow powder | Boiling point | 91-94℃ |
purity | ≥99% | density | 1.2g/cm3 |
Initiation type | Cleavage-type free radical photoinitiator | Absorption wavelength | 273-370nm 350-400nm |
2. Function and features:
1. It has good solubility with oligomers and reactive diluents.
2. Absorption at 269 nm, 298 nm, 379 nm, and 393 nm, and the longest absorption wavelength is 430 nm.
3. The photolysis product is a trimethylbenzoyl radical and a diphenylphosphonyl radical, which are highly active and can initiate polymerization.
4, with photo-bleaching effect, suitable for thick film deep curing, low volatilization, can make the coating non-yellowing, mostly used in white systems.
5, good thermal stability, no chemical reaction occurs when heated to 180 ° C, storage stability is good.
Packaging:
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