Photoinitiator TPO is an efficient free radical (1) type photoinitiator with absorption in a long wavelength range. Because of its wide absorption range, its effective absorption peak is 350-400 nm, and it always absorbs about 420 nm. Its absorption peak is longer than that of the conventional initiator. After irradiation, two free radicals, benzoyl and phosphatidyl, can be formed, which can initiate polymerization. Therefore, the photo-curing speed is fast. It also has photobleaching effect. It is suitable for deep curing of thick film and yellow-stable coating, and has low absorption peak. Volatile, suitable for water-based. It is mostly used in white system. It can be used in ultraviolet curing coatings, printing ink, ultraviolet curing adhesives, optical fiber coatings, photoresist, photopolymer plate, stereolithographic resin, composite materials, dental fillers and so on.
Properties: light yellow crystalline powder; melting point: 91-94DC, absorption wavelength: 273-370 nm; fast curing speed.
Photoinitiator TPO is mainly used for silk printing ink, lithographic printing ink, printing ink and wood coating. TPO can be completely cured on the pigmented surface of white or high titanium dioxide. Widely used in various coatings, because of its excellent absorption performance, it is especially suitable for silk printing ink, lithographic printing, printing ink, wood coating. The coating does not yellowing, low post-polymerization effect and no residue. It can also be used for transparent coatings, especially for products with low odor requirements. It has high initiation efficiency when used alone in unsaturated polyester containing styrene system. Acrylate systems, especially colored systems, usually need to be used in combination with amine or acrylamide, and other photoinitiators to achieve complete curing of the system, especially for low yellowing, white systems and thick film curing.
Now for this product we have capacity about 10MT/month and high purity.Our min packing is 25KG/drum and also can arrange packing as customer’s requirements.
Post time: Sep-09-2022
