两组聚硼酸酯化合物的溶液缓蚀性能研究  

Corrosion inhibition performance of two kinds of polyborate compound in aqueous solutions

作　　者：王海鹰[1] 柴立元[1] 史书阳[2] 吕春绪[3] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083 [2]青岛科技大学化工学院,山东青岛266042 [3]南京理工大学化工学院,江苏南京210094

出　　处：《日用化学工业》2009年第5期301-304,共4页China Surfactant Detergent & Cosmetics

基　　金：国家科技支撑计划重点资助项目(2007BAC25B01)

摘　　要：在引发剂偶氮二异丁腈（AIBN）作用下，通过溶液聚合得到硼酸酯单体丙烯酰胺甲基-N-十二烷基硼酸二乙醇胺酯（BES）与丙烯酰胺（AM）的共聚物PBA以及BES均聚物PBES。比较了PBA和PBES的表面活性，并通过静态挂片失重实验，考察了PBES和PBA的溶液缓蚀性能。结果表明，合成的两亲性聚硼酸酯PBES和PBA具有很好的表面活性，γcmc=30mN·m^-1～32mN·m^-1；缓蚀温度为30℃和50℃时，在1mol／LHCl溶液中，聚硼酸酯PBES和PBA对45#钢片的溶液缓蚀率最高可达97％和92％左右，二者缓蚀性能明显优于Tween85和OP-10；聚合物相对分子质量增大、BES质量分数增加皆有利于聚硼酸酯溶液缓蚀性能提高。Co - polymer, polyborate acrylamide （ PBA ） was obtained through solution polymerization of borate monomer（ acrylamide methyl- N -dodecyl boric acid diethanolamine ester, hereinafter refers to as BES）and acrylamide under the action of azo - di - isobutyronitrile （AIBN） as initiator. Similarly, homogeneous polymer PBES was obtained by solution polymerization of BES. Surface active properties of PBA and PBES were meas- ured and compared. Corrosion inhibition performance of PBES and PBA for 45# carbon steel in 1 mol/L HCI solution was measured and compared with conventional inhibitors OP - 10 and Tween85. The results showed that polyborate PBES and PBA has a good surface activity of γcmc =30 mN ·m^-1 -32 mN·m^-1. At temperature 30 ℃ and 50 ℃, the maximum inhibition effectiveness of PBES and PBA may reach around 97% and 92% respectively,which are significantly better than that of OP- 10 and Tween85. Increasing the molecular weight of BES or increasing the concentration of the polyborates can improve the corrosion inhibition effectiveness.

关 键 词：聚硼酸酯 表面活性 缓蚀 

分 类 号：TQ423[化学工程]