摘要
Polyaspartic acid（PASP） was synthesized by polycondensate of L-aspartic acid using H3PO4 as a catalyst. The corrosion inhibition performance of PASP on carbon steel was studied by a rotating hanging slice method. The results showed that the corrosion inhibitory efficiency rose with the increasing of the concentration of PASP. It also indicated that the highest corrosion inhibitory efficiency reached 93% when the concentration of PASP was 100 mg/L. The strong adsorption signal of PASP on the carbon steel surfaces was detected by surface-enhanced Raman scattering（SERS） technique. The results suggested that the high corrosion inhibitory efficiency appeared owing to the chemical adsorption of carboxyl groups in PASP on steel surface.
Polyaspartic acid(PASP) was synthesized by polycondensate of L-aspartic acid using H_(3)PO_(4) as a catalyst. The corrosion inhibition performance of PASP on carbon steel was studied by a rotating hanging slice method. The results showed that the corrosion inhibitory efficiency rose with the increasing of the concentration of PASP. It also indicated that the highest corrosion inhibitory efficiency reached 93% when the concentration of PASP was 100 mg/L. The strong adsorption signal of PASP on the carbon steel surfaces was detected by surface-enhanced Raman scattering(SERS) technique. The results suggested that the high corrosion inhibitory efficiency appeared owing to the chemical adsorption of carboxyl groups in PASP on steel surface.
出处
《应用化学》
CAS
CSCD
北大核心
2004年第9期969-970,共2页
Chinese Journal of Applied Chemistry
基金
教育部骨干教师资助计划资助 (GG- 430-10247-1218)
关键词
聚天冬氨酸
缓蚀作用
表面增强拉曼散射
polyaspartic acid,corrosion inhibition,surface-enhanced Raman scattering
