| Product description : |
Appearance: White crystalline powder； Viscous liquid ranging from yellow to reddish-brown；
Assay：99%min by HPLC；
IR Identity: conform to standard；
HNMR： conform to standard；
carbon spectrum: conform to standard；
Water by K. F.:0.5% max or as per the customer’s request；
Loss on drying:0.5% max. or as per the customer’s request；
useAs a radical-type photoinitiator, it is used in curing systems to initiate the polymerization reaction of unsaturated prepolymers, featuring high reactivity, low yellowing, and low curing odor. It is applied in coatings (such as clear coatings, floor coatings), adhesives, and packaging inks for materials like wood, plastic, paper, and metal. UV-988 (CAS No. 163702-01-0) is a UV absorber, mainly used in polymer materials to absorb ultraviolet light and extend the service life of the materials.
Uses: UV Absorption: Effectively absorbs the UV-B band (280-320nm), protecting transparent polymers such as PC, PET, and PMMA from UV damage. Reduces UV-induced damage to the substrate, maintaining the material's optical and physical properties. Application Fields: Used in weathering resistance treatment of outdoor materials such as solar panels and membrane materials, as well as in industries requiring UV protection such as pharmaceuticals and cosmetics. Other Information: As a photoinitiator, it may be used in photochemical reactions or printing fields.
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