中固化学 ®938 is 阳离子光引发剂 of the iodonium hexafluorophosphate family, designed for non-silicone applications such as the cationic UV curing of inks to speed up the rate of curing. This crystalline powder enables good adhesion to metal substrates and presents low yellowing in clear coatings and thin films in addition to its use to cure cycloaliphatic epoxy resins, 乙烯基醚类单体, glycidyl ethers, oxetane, epoxidised olefins and other cationically cured 原料组分s.
Its absorption maximum is 241nm. 中固化学 ® 938 provides high reactivity and solubility in cationic systems when used at 0.5-5 wt% in UV curable formulations and LED curable formulations when sensitised with thioxanthones
