摘要： 开发了一种深水装备用无溶剂酚醛环氧涂料，探讨了不同官能度的酚醛环氧树脂用量、固化剂类型、偶联剂用量、云母氧化铁用量等因素对涂层硬度、耐磨性、干/湿附着力、耐高压性、耐海水浸泡性能、耐阴极剥离性和抗氯离子渗透性等性能的影响。结果表明：以官能度 2. 8的酚醛环氧树脂 DEN431与官能度 2. 35的酚醛环氧树脂 EPALLOY8240按照质量比 3∶1复配作为主体树脂，添加占 A组分树脂质量 1%的偶联剂 GX-560和 A组分质量 20%的云母氧化铁，改性脂环胺 B为固化剂，开发的无溶剂酚醛环氧涂料性能满足 NORSOK M-501：2022对应用于浸没环境涂层的技术要求，通过南海 12个月 1 000 m深水原位试验，表明其具备优异的深水环境长效防腐性能。
关键词:
酚醛环氧,
深水防腐,
耐阴极剥离,
耐高压,
湿附着力
Abstract: This research developed a solvent-free phenolic epoxy coating for deepwaterequipment. The effects of the content and proportion of three kinds of phenolic epoxy resinwith different functionalities，the type of curing agent，the content of coupling agent，and the content of mica iron oxide on the film hardness，abrasion resistance，dry/wet adhesion，high pressure resistance，seawater immersion resistance，cathodic disbondment resistance，and chloride ion penetration resistance were investigated. The results showed that the solvent-freephenolic epoxy coating developed with m（DEN431）∶m（EPALLOY8240）=3∶1 as the main resin，1% coupling agent GX-560 by the mass of component A resin，20% mica iron oxide bymass of component A，and modified cyclic amine B as the curing agent. The performance of thedeveloped solvent-free phenolic epoxy coating was satisfied with the technical requirements of NORSOK M-501：2022 for coatings applied in immersion environments. The results of 12-month in-situ tests in 1 000 m deep water of the South China Sea showed that it indicatedexcellent long-term corrosion resistance in deep water.
Key words:
phenolic epoxy resin,
anticorrosion in deepwater environment,
cathodic disbondment resistance,
high pressure resistance,
wet adhesion
中图分类号:
徐科, 方健君, 王新宇, 等. 深水装备用无溶剂酚醛环氧涂料的制备及性能研究[J]. 涂料工业, 2024, 54(11): 50-56.
XU K, FANG J J, WANG X Y, et al. Study on Preparation and Properties of Solvent-free Phenolic Epoxy Coatings for Deepwater Equipment[J]. Paint & Coatings Industry, 2024, 54(11): 50-56.