摘要
为了探究轧制油对压延电子铜箔的腐蚀情况,对铜箔进行了静态浸泡腐蚀,探讨腐蚀时间、温度对腐蚀过程的影响;采用间歇性腐蚀试验研究了轧制油腐蚀性和金属腐蚀率随腐蚀时间的变化;以苯并三氮唑(BTA)为缓蚀剂进行了初步的缓蚀试验,通过扫描电镜(SEM)观察缓蚀效果。结果表明:静态腐蚀时,铜箔腐蚀速率随腐蚀时间呈波动性变化,腐蚀3 h时腐蚀速率最高,达到0.780 mm/a,腐蚀9 h时腐蚀速率最低,为0.366 mm/a;铜箔表面腐蚀分为主要腐蚀生成Cu2O和Cu2O被进一步氧化为CuO 2个阶段;随着与铜箔接触时间的延长轧制油颜色逐渐加深,一方面是由于铜箔腐蚀产物溶于或者混入轧制油中,另一方面是因为铜离子催化轧制油氧化变质;在100℃以下铜箔腐蚀速率随温度增高而增加,超过100℃后腐蚀速率反而下降;随腐蚀时间延长,轧制油腐蚀性和金属腐蚀率降低;轧制油中加入缓蚀剂后,铜箔表面腐蚀明显改善。
Static immersion tests of rolled electronic copper foil in rolling oil were carried out to explore the effects of time and temperature on the corrosion process of the copper foil. Thus intermittent corrosion tests were conducted to investigate the variation of the corrosiveness of the rolling oil and corrosion rate of the metal with time. In the meantime,benzotriazole( denoted as BTA) was used as an inhibitor,and its corrosion inhibition performance for the copper foil in rolling oil was examined based on scanning electron microscopic observation. Results showed that,under static corrosion condition,the corrosion rate of the copper foil in the rolling oil tended to vary in a wave-like manner with extending time. Besides,the corrosion of the copper foil in the rolling oil could be classified into two stages. Namely,Cu 2 O was formed in the first stage of corrosion, and Cu 2 O was further oxidized into CuO in the second stage of corrosion. Furthermore,the color of the rolling oil tended to gradually become black with extending time of contact with the copper foil,which was attributed to the dissolution or mixing of the corroded products of the copper foil in the rolling oil and to the oxidation and degradation of the rolling oil catalyzed by Cu2 +ion. Moreover,the corrosion rate of the copper foil rose with increasing temperature below 100 ℃,and it tended to decline with increasing temperature above 100 ℃. Both the corrosiveness of the rolling oil and corrosion rate of the copper foil tended to decline with extending time,and introducing BTA inhibitor in the rolling oil helped to significantly retard the corrosion of the copper foil therein.
出处
《材料保护》
CAS
CSCD
北大核心
2013年第8期30-32,共3页
Materials Protection
基金
国家科技支撑计划项目(2011BAE23B00)资助
关键词
腐蚀
压延电子铜箔
轧制油
缓蚀
corrosion
rolled electronic copper foil
rolling oil
corrosion inhibition
