Free Radical-Cationic Hybrid System Passivation Film for the Surface of Hot-Dip Aluminum-Zinc Coated Steel Plate

3-Ethyl-3-benzoxy-methyl oxacyclobutane (TCM 104) and 3,4-epoxy-cyclohexyl carboxylic acid-3',4'-epoxy-cyclohexyl methyl ester (UVR 6110) as active diluents, a mixture of modified epoxy-acrylate and modified polyester acrylate in a certain proportion of oligomer, triaryl sulfonium hexafluo...

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Bibliographic Details
Published in:Key engineering materials 2022-03, Vol.915, p.43-52
Main Authors: Lu, Wei Xing, Zhang, Qian Feng, Wu, Lin Ling, Ma, Chun Yu
Format: Article
Language:English
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Summary:3-Ethyl-3-benzoxy-methyl oxacyclobutane (TCM 104) and 3,4-epoxy-cyclohexyl carboxylic acid-3',4'-epoxy-cyclohexyl methyl ester (UVR 6110) as active diluents, a mixture of modified epoxy-acrylate and modified polyester acrylate in a certain proportion of oligomer, triaryl sulfonium hexafluorophosphate as cationic photoinitiator, irgacure 184 as free radical photoinitiator, and high-pressure mercury lamp as radiation source, and then the compound formula of free radical and cation hybrid photo-curing were prepared and further coated on the hot-dipped aluminum-zinc steel plate. After curing, the passivation film was characterized by neutral salt spray testing, FT-IR spectroscopy and electrochemical properties along with other relative evaluation criterions. The passivation film of this hybrid system can be cured at an energy of 600 mJ/cm2, and its performances are comparable to those of current water-based passivators.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/p-d18ir5