文章摘要
含环氧基氟树脂防腐涂层的制备及性能
Preparation and properties of epoxy-containing fluororesin
投稿时间:2019-07-10  修订日期:2019-09-04
DOI:
中文关键词: 防腐  氟树脂  接触角  中性盐雾试验  电化学阻抗
英文关键词: anticorrosive  fluororesin  water contact angle  neutral salt spray test  EIS
基金项目:
作者单位E-mail
狄凯莹 天津科技大学 897371372@qq.com 
吕佳帅男 天津科技大学  
冯裕智 天津科技大学  
陈晓婷 天津科技大学 chenxt@tust.edu.cn 
毛占伟 深圳天科新材料有限公司  
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中文摘要:
      用全氟己烷乙基丙烯酸酯和甲基丙烯酸缩水甘油酯共聚得到含环氧基的氟树脂,同时以全氟聚醚醇和二乙胺、聚醚胺为原料,分别制备了两种胺类固化剂。利用FTIR表征了氟树脂及固化剂的结构。将质量分数为1%(以涂覆剂整体质量计)的氟树脂涂覆剂在铜板表面并固化成膜,用水接触角、中性盐雾测试、EIS、极化曲线等方法研究了涂层对铜板的防腐蚀性能。结果表明:铜板表面氟树脂F-X的接触角均在120°以上,F-6与F-5系列的涂层耐盐雾腐蚀时间可到24h以上是市售电子涂布液EGC-1702的2倍,F-5系列氟树脂涂层阻抗模值可达到600Ω以上为EGC-1702的2倍,F-6系列氟树脂腐蚀前后的腐蚀电流密度仅从1.201×10-4A增大为2.649×10-4A,经电化学阻抗谱和极化曲线分析表明合成的氟树脂耐腐蚀性优异。热重分析表明涂层的热分解温度高于330℃,热稳定性良好。
英文摘要:
      The epoxy group-containing fluororesin is obtained by copolymerization of perfluorohexane ethyl acrylate and glycidyl methacrylate; and two amine curing agents are prepared by using perfluoropolyether alcohol, diethylamine and polyether amine as raw materials respectively. Agent. The structure of the fluororesin and curing agent was characterized by FTIR. The fluororesin coating agent with a mass fraction of 1% (based on the total mass of the coating agent) was cured on the surface of the copper plate to form a film. The coating was studied by water contact angle, neutral salt spray test, EIS, polarization curve and the like. Corrosion resistance to copper plates. The results show that the contact angle of fluororesin FX on the surface of copper plate is above 120°, and the salt spray corrosion resistance of F-6 and F-5 series coatings can be more than 24h, which is twice that of commercially available electronic coating liquid EGC-1702, F-5 series fluororesin coating impedance modulus can reach 600Ω or more and double the EGC-1702, and the corrosion current density of F-6 series fluororesin before and after corrosion increases from 1.201×10-4A to 2.649×10-4A, electrochemical impedance spectroscopy and The polarization curve analy-sis showed that the synthesized fluororesin was excellent in corrosion resistance. Thermogravimetric analy-sis showed that the thermal decomposition temperature of the coating was higher than 330 °C and the thermal stability was good.
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