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Citation: Yan Li-Jing, He Yu-Fan, Lin Hai-Chao, Wu Wei-Tao. Study on the Inhibition Effect of Polymer Film of Propargyl Alcohol in Fe/H₂SO₄ and Fe/H₂SO₄+H₂S Systems[J]. Acta Physico-Chimica Sinica, ;1999, 15(08): 726-734. doi: 10.3866/PKU.WHXB19990812 shu

Study on the Inhibition Effect of Polymer Film of Propargyl Alcohol in Fe/H₂SO₄ and Fe/H₂SO₄+H₂S Systems

1.
Institute of Corrosion and Protection of Metals,Sate Key Laboratory for Corrosion and Protection,Chinese Academy of Sciences,Shenyang 110015

Received Date: 30 October 1998
Available Online: 15 August 1999

The formation of polymer film of propargyl alcohol(PA) and its protective ability against corrosion in Fe/H_2SO_4 and Fe/H_2SO_4+H_2S systems have been investigated using impedance measurement. The composition and morphology of the corrosion surface of iron, on which PA polymerized at different bines, were obtained with the aid of SEM and AFM as well as EDX. The results showed that PA polymerized into compact polymer film in Fe/H_2SO_4 and Fe/ H_2SO_4 + H_2S systems, which made iron surface smooth and have a morphologies of regular square structure in microscopic level. In Fe/H_2SO_4 system, macroscopic continuous polymer film of PA was not formed leading to local corrosion on electrode surface. In Fe/H_2SO_4 +H_2S system, the adsorption of H_2S and HS - on electrode surface slowed down the formation of polymer film of PA. However, the iron sulfide, produced after a longer time, increased the continuity of the polymer film of PA and therefore, the polymer film could perform its long-te...更多rm inhibition action.
- Polymer film of PA;H₂S,
- Fe/H₂SO₄,
- Inhibition effect
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Study on the Inhibition Effect of Polymer Film of Propargyl Alcohol in Fe/H2SO4 and Fe/H2SO4+H2S Systems

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通讯作者: 陈斌, bchen63@163.com

Study on the Inhibition Effect of Polymer Film of Propargyl Alcohol in Fe/H₂SO₄ and Fe/H₂SO₄+H₂S Systems