氟改性环氧丙烯酸核壳乳液的合成及其涂膜性能  

Synthesis of Organic Fluorine-Modified Epoxy Acrylate Emulsion and Evaluation of Performance of Its Paint

作　　者：陈美玲[1] 李健[1] 杨莉[1] 刘桂林[1] 高宏[1] 

机构地区：[1]大连交通大学材料科学与工程学院无机超细粉体制备及应用辽宁省重点实验室,辽宁大连116028

出　　处：《材料保护》2011年第10期68-70,9,共3页Materials Protection

基　　金：辽宁省教育厅项目(2008S032)资助

摘　　要：乳液是环保型低表面能海洋防污涂料的重要组分。采用核壳乳液聚合方法合成有机氟改性环氧丙烯酸乳液,探讨了软硬单体质量比、氟单体含量、环氧树脂含量对乳液性能的影响,得到氟改性环氧丙烯酸乳液的最佳配方,并探讨了合成乳液制备的涂料的海洋防污性能。结果表明:软硬单体质量比为1:1,丙烯酸含量为2%,单体核壳质量比为2:3,核玻璃转化温度为-10℃,氟单体含量占单体总含量的8%,环氧树脂含量占单体总含量的9%时,乳液性能最佳;用此乳液制备的涂料涂层附着力2级,接触角114.0°,抗冲击强度大于500 N·cm,吸水率为2.41%,性能较佳。Epoxy acrylate emulsion modified by organic fluorine was prepared by making use of core-shell emulsion polymerization method.The effects of mass ratio of soft and hard monomers, dosage of fluorine monomer,and dosage of epoxy resin on the properties of as-prepared emulsion were investigated.The optimized formulation for preparing the emulsion was established, and the marine anti-fouling performance of the paint made of the emulsion was primarily evaluated.Results indicate that the emulsion prepared at a mass ratio of soft and hard monomers of 1:1, acrylate dosage of 2%,monomer core-shell mass ratio of 2:3, core glass transition temperature of-10℃,organic fluorine monomer dosage of 8%(in relation to the total content of monomers), and epoxy resin dosage of 9%(in relation to the total content of monomers) possesses the optimal properties.The paint made of the emulsion possessing the optimal properties had a adhesion force of grade 2,water contact angle of 114.0°,anti-impact force of over 500 N·cm,and water absorption rate of 2.41%,showing desired anti-fouling performance in marine environment.

关 键 词：核壳乳液合成 氟改性环氧丙烯酸 附着力 接触角 抗冲击强度 吸水率 

分 类 号：TQ637[化学工程—精细化工]