环氧树脂
硅酮
材料科学
阳离子聚合
固化(化学)
单体
光致聚合物
聚二甲基硅氧烷
光引发剂
硅油
复合材料
聚合
紫外线固化
高分子化学
聚合物
作者
Fuping Bian,Shudong Lin
出处
期刊:Pigment & Resin Technology
[Emerald (MCB UP)]
日期:2023-05-09
标识
DOI:10.1108/prt-10-2022-0122
摘要
Purpose This paper aims to investigate the effects on coatings performance in the epoxy silicone resin system owing to the existence of the different chain length of open-chain epoxy monomer. In this paper, [4-Methylphenyl-(4–(2-methylpropyl) phenyl)]iodonium as photoinitiator was added into epoxy silicone resin by ultraviolet (UV)-cured polymerization to investigate the effects on coatings performance owing to the existence of the different chain length of open-chain epoxy monomer. Design/methodology/approach A simple hydrosilylation reaction was used to synthesize epoxy-based silicone prepolymers by using hydrogen-terminated polydimethylsiloxane, 1,2-epoxy-5-hexene, 1,2-epoxy-7-octene and 1,2-epoxy-9-decene as precursors. Findings The results revealed that the glass transition temperatures (Tg) and hydrophobicity increased with the chain length of open-chain epoxy monomer in the UV curable epoxy-based silicone coatings, and these films had excellent heat resistance, hydrophobicity, antigraffiti and ink removal properties. Research limitations/implications The cationic photocuring systems are not susceptible to the effect of oxygen inhibition. However, the limitation of cationic light curing process is that it requires a long curing time. Originality/value The coatings prepared via the UV curing approach can provide superior antismudge effects, and thus they are promising candidates for use in various industries, especially in fields such as antismudge coatings and antigraffiti coatings.
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