摘要
用超生波辅助浸提法从银杏叶中提取有机缓蚀组分,并将其作为饱和二氧化碳盐水溶液中缓蚀剂的主要成分.对以银杏叶浸泡提取物为主的复合缓蚀剂的缓蚀效果进行了研究,实验表明:银杏叶提取物的缓蚀率最高可达84.7%,与硫脲复配后缓蚀率最高达到94.7%.电化学研究表明:银杏叶提取液与硫脲复配的缓蚀剂为混合型缓蚀剂.
The active ingredients of ginkgo leaves were extracted by ultrasonic-assisted extraction.The inhibition effect of ginkgo leaves extract（QLE）on carbon steel corrosion in NaCl solution saturated with CO2 was studied.Experimental results showed that QLE is a good corrosion inhibitor with maximum inhibition efficiency up to 84.7% and to 94.7% when combined with thiourea.Polarization curves reveal that QLE combined with thiourea behaves like a mixed-type corrosion inhibitor.
出处
《河北大学学报（自然科学版）》
CAS
北大核心
2016年第3期264-268,共5页
Journal of Hebei University(Natural Science Edition)
基金
国家自然科学基金资助项目(51471021)
关键词
银杏叶
缓蚀剂
CO2
腐蚀
ginkgo leaves
corrosion inhibitor
CO2
corrosion
