Photoinitiator TPO powder CAS 75980-60-8

Photoinitiator TPO is a kind of highly efficient free radical (1) type photoinitiator with absorption in the long wavelength range.Because of the wide range of absorption, the effective absorption peak at 350 ~ 400 nm, soaking up to about 420 nm, its absorption peak Chemicalbook weaker than conventional initiator is long, light can generate benzoyl and phosphoryl two free radicals, can cause aggregation, so the light curing speed, it also has light bleaching, suitable for the characteristics of deep thick film and coating curing the same yellow, with low volatile, suitable for water-based.

Product Name	Photoinitiator TPO
Chemical Name	Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
CAS No.	75980-60-8
Molecular Formula	C22H21O2P
Molecular Weight	348.37
Appearance	Light yellow crystal powder
Assay	99% min
Melting point	91-95°C
Loss on drying	0.2% max
Ash	0.1% max
Acidity value	0.5mgKOH/g max

As Photoinitiator, it mainly used in white system, UV curing coatings, printing inks, UV curing adhesives, photoconductive fiber coatings, photoresist, photopolymeric plates, stereoscopic lithography resins, composite materials, dental fillers, etc. TPO is fully cured on either white or high titanium dioxide pigmented surfaces.Widely used in a variety of coatings, due to its excellent absorption properties, it is especially suitable for screen printing ink, lithography printing ink, flexo printing ink, wood coating.It can also be used for transparent coatings, especially for products with low odor requirements. It is the best extraction solvent for petroleum aromatics unit and also used as formylation reagent in fine chemical industry. How should I take photoinitiator TPO? Contact: erica@shxlchem.com Payment terms T/T(telex transfer), Western Union, MoneyGram, BTC(bitcoin), etc. Lead time ≤25kg: within three working days after payment received. ＞25kg: one week Sample Available Package 1kg per bag, 25kg per drum, or as you required. Storage Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.