多聚咪唑啉的合成、表征与复配研究

Synthesis, Characterization and Synergistic Effect of Polyimidazoline

本文选取羟乙基乙二胺作为反应物成功合成了一种侧链含有大量咪唑啉基团的聚合物(多聚咪唑啉)。通过静态失重法评价可知:当多聚咪唑啉(30wt%)的加入量为0.8%时,在60℃、15wt%盐酸体系中可将N80挂片腐蚀速率降至1.1g/m^2·h,缓蚀率高达89.17%。通过复配研究得知:丙炔醇、KI与多聚咪唑啉之间存在很好的协同效应,在60℃、15wt%盐酸体系中可将N80挂片腐蚀速率降至0.147g/m^2·h;三者之间的最佳复配比例为:25wt%多聚咪唑啉+5wt%丙炔醇+0.15wt%KI。

This article selects β-hydroxyethylenediamine as reactant successfully synthesized a kind of side chain contains a lot of imidazoline groups of the polymer(polyimidazoline). Evaluation by static weightloss method shows: when the mass fraction on polyimidazoline (30wt %) is 0.8 %, the corrosion rate on N80 is 1.1g/m2?h and the corrosion inhibition rate is 89.17% at 60 ℃ , 15wt%HCl-H2O media. There is a good synergistic effect between propargyl alcohol, KI and polyimidazoline . The lowest corrosion rate of N80 can be reduced to 0.147g/m2 ?h .The optimal proportion is 25wt% polyimidazoline+5wt% propargyl alcohol +0.15wt%KI.