antioxidant,UV absorber,light stabilizer

Chemical name: 2,4,6-trimethyl-benzoyl-based phosphorus oxide English name: 2,4,6-Trimethyl Benzoyl Diphenylsphinoxidee CAS No: 75980-60-8 Molecular: C22H21PO2 Appearance: Pale yellow crystalline powder Purity (C): s99.0% Melting point: 91.0-94.0 degrees Celsius (Celsius) Acid value (mgKOH/g): s4 Volatiles: .2% Ash: .10% Application: TPO is an efficient free radical (1) type light that is absorbed within a long wavelength range. Because of its wide absorption range, its effective absorption peak of 350-400nm, has been absorbed to about 420nm, its absorption peak is longer than conventional triggeragent, after light can produce benzoyl and phospheide two free radicals, can trigger aggregation, so light curing speed, it also has photobleaching, Suitable for deep curing of thick film and coating invariant yellow characteristics, with low volatility, suitable for water-based. This product is used in white system, can be used for UV curing coatings, printing inks, UV curing adhesives, photoguided fiber coatings, photocorrosion inhibitors, photopolymer plates, stereolithography resins, composite materials, dental fillers and so on. The use of this product should be based on the results of the actual experiment, the recommended addition amount is 0.5-4%w/w. It is fully cured on both white or high-titanium white powder pigmentized surfaces. The coating does not yellow, the post polymerization effect is low, no residue. It can also be used for transparent coatings, especially for products with low odor requirements. It is used alone in unsaturated polyester containing styrene and has a high trigger ingress. For acrylic systems, especially those of color, it is usually necessary to use with amines or acrylamides, as well as with other photoinitiators, in order to achieve thorough curing of the system is particularly suitable for low yellowing, white systems and thick film layer curing. Silk printing ink, lithography ink, flexo ink, wood coating. Recommended addition volume 0.5-3.0% (colored system), 0.3-2.0% (transparency system)