1-vinyl-3-alkylimidazolium bromide ionic liquids （［VAIM］Br） including 1-vinyl-3-ethylimidazole bromide［VEIM］Br）， 1-vinyl-3-propylimidazole bromide （［VBIM］Br） and 1-vinyl-3-butyl imidazole bromide （［VPIM］Br） were prepared via N-alkylation reaction using 1-vinylimidazole and different bromoalkanes （e.g.， 1-bromoethane， 1-bromopropane and 1-bromobutane） as raw materials. Three kinds of flame retardant coatings （e.g.， ［VEIM］ Br／EA， ［VPIM］ Br／EA and ［VBIM］Br／EA） were prepared by UV curing method after ［VAIM］Br ionic liquid， amine acrylate， acrylic acid and epoxy acrylate （EA） being mixed. And the properties of the samples were characterized by infrared spectromete， ultraviolet visible spectromete， limiting oxygen index instrument， vertical burning tester and mechanical tester. The results showed that the comprehensive properties of ［VBIM］ Br／EA coating was better. When the addition of ［VBIM］Br was 3.5 g， the flame retardancy of the coating was the best. Meanwhile， its limiting oxygen index， combustion grade， carbon residue ratio （calcined in muffle furnace at 500 ℃） and hardness were 32， V-0， 35.2％ and 6 H， respectively. And the coating had higher transmittance. In the range of wavelength 500-800 nm， the transmittance of the coating was between 88 ％ and 91％.
ZHENG Bing-Yun
. Properties of 1-vinyl-3-alkylimidazole bromide Ionic Liquids / Epoxy Acrylate Flame Retardant Coatings[J]. Paint & Coatings Industry, 2019
, 49(1)
: 13
-17
.
DOI: 10.12020/j.issn.0253-4312.2019.1.13
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