摘要
为了进一步了解防锈油诱导金属表面油斑的影响因素及其综合防控方式,通过防锈油油斑试验,系统地评价了不同类型防锈油添加剂在碳钢表面的油斑倾向。结果表明:含不饱和脂肪酸类防锈剂的配方易产生油斑,而磺酸钙/钡盐、饱和脂肪酸衍生物及稳定性良好的成膜剂则油斑风险较低。研究进一步揭示,油斑的形成机理是局部微电池效应与氧化副反应协同作用的结果;水分含量升高会加剧油斑严重程度,金属前处理残留物也可能通过破坏油膜完整性间接诱发油斑。基于机理分析,提出通过优化防锈剂选择、减少不饱和组分添加、引入抗氧剂及控制环境湿度等综合方式,可有效降低防锈油应用过程中的油斑风险。
To further understand the influencing factors of oil stains induced by rust-preventive oils on metal surfaces and their comprehensive prevention and control methods,rust-preventive oil stain tests were carried out to systematically evaluate the oil stain tendency of different types of rust-preventive oil additives on carbon steel surfaces.The results showed that formulations containing unsaturated fatty acid-type rust inhibi-tors are prone to oil stain formation,while calcium/barium sulfonates,saturated fatty acid derivatives,and film-forming agents with good sta-bility have relatively low oil stain risk.The research further revealed that the formation mechanism of oil stains is the result of the synergistic effect between local microbattery effect and oxidative side reactions;an increase in moisture content will aggravate the severity of oil stains,and residues from metal pretreatment may also indirectly induce oil stains by damaging the integrity of the oil film.Based on the mechanism analysis,comprehensive methods including optimizing the selection of rust inhibitors,reducing the content of unsaturated components,introducing antioxi-dants and controlling environmental humidity are proposed to effectively reduce the oil stain risk during the application of rust-preventive oils.
作者
程荡
李奕悟
CHENG Dang;LI Yiwu(Shenyang Packaging Materials Co.,Ltd.,Shenyang 110084,China)
出处
《材料保护》
2026年第2期177-186,共10页
Materials Protection
关键词
防锈油
油斑
防锈添加剂
局部腐蚀
rust-preventive oil
oil stains
rust-preventive additives
local corrosion
