Plasma-polymerized coatings using HMDSO precursor for iron protection

A large microwave plasma reactor was used for the deposition of plasma-polymerized coating from hexamethyldisiloxane (HMDSO)/oxygen (O 2) mixtures on iron samples. The plasma was characterized by optical emission spectroscopy as a function of the HMDSO to oxygen ratio. Infrared spectroscopy was used...

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Bibliographic Details
Published in:Progress in organic coatings 2000-02, Vol.38 (1), p.9-15
Main Authors: Vautrin-Ul, C, Boisse-Laporte, C, Benissad, N, Chausse, A, Leprince, P, Messina, R
Format: Article
Language:English
Subjects:
Applied sciences
Corrosion
Corrosion prevention
Electrochemical impedance spectroscopy
Emission spectroscopy
Exact sciences and technology
HMDSO precursor
Metals. Metallurgy
Microwave plasma
Physicochemistry of polymers
Polymerization
Polymers and radiations
Protective coating
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Summary:A large microwave plasma reactor was used for the deposition of plasma-polymerized coating from hexamethyldisiloxane (HMDSO)/oxygen (O 2) mixtures on iron samples. The plasma was characterized by optical emission spectroscopy as a function of the HMDSO to oxygen ratio. Infrared spectroscopy was used to investigate the coating structure. The variation of the HMDSO content in the feed provides a large wide of coatings, from silica (HMDSO content: 20%) to polymer (HMDSO content >80%). Electrochemical impedance spectroscopy was used to predict corrosion protective properties of the coating. Different HMDSO/O 2 ratios in the mixture provide varying degree of corrosion protection and the best protection was obtained for the plasma-polymerized coating from HMDSO 80% content precursor.
ISSN:0300-9440
1873-331X
DOI:10.1016/S0300-9440(99)00077-6