Hydroxypropyl Methylcellulose Phthalate Biopolymer as an Anticorrosion Coating

Shih Chen Shi

doi:10.20964/2021.09.44

Hydroxypropyl Methylcellulose Phthalate Biopolymer as an Anticorrosion Coating

Shih Chen Shi

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

This study involved a carbohydrate material: hydroxypropyl methyl-cellulose phthalate (HPMCP), a derivative of the biopolymer hydroxypropyl methylcellulose. It is a biodegradable and environmentally friendly material. This study tested the durability and corrosion resistance of HPMCP coatings on highspeed steel in solutions with different pH values and different immersion durations. The electrochemical tests included potentiodynamic polarization and electrochemical impedance spectroscopy. Water channels formed as the coating dissolved in an acidic environment, which degraded its corrosion resistance. However, with prolonged immersion, the corrosion resistance of the system was maintained because iron oxides and chromium oxides were generated between the HPMCP coating and high-speed steel. The corrosion resistance mechanism of HPMCP coatings is proposed and discussed.

Original language	English
Article number	210935
Pages (from-to)	1-10
Number of pages	10
Journal	International Journal of Electrochemical Science
Volume	16
DOIs	https://doi.org/10.20964/2021.09.44
Publication status	Published - 2021

All Science Journal Classification (ASJC) codes

Electrochemistry

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10.20964/2021.09.44

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title = "Hydroxypropyl Methylcellulose Phthalate Biopolymer as an Anticorrosion Coating",

abstract = "This study involved a carbohydrate material: hydroxypropyl methyl-cellulose phthalate (HPMCP), a derivative of the biopolymer hydroxypropyl methylcellulose. It is a biodegradable and environmentally friendly material. This study tested the durability and corrosion resistance of HPMCP coatings on highspeed steel in solutions with different pH values and different immersion durations. The electrochemical tests included potentiodynamic polarization and electrochemical impedance spectroscopy. Water channels formed as the coating dissolved in an acidic environment, which degraded its corrosion resistance. However, with prolonged immersion, the corrosion resistance of the system was maintained because iron oxides and chromium oxides were generated between the HPMCP coating and high-speed steel. The corrosion resistance mechanism of HPMCP coatings is proposed and discussed.",

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AU - Shi, Shih Chen

N1 - Funding Information: ACKNOWLEDGEMENTS This work was supported by the Ministry of Science and Technology in Taiwan (MOST 109-2221-E-006-046). Publisher Copyright: © 2021 The Authors. All Rights Reserved.

PY - 2021

Y1 - 2021

N2 - This study involved a carbohydrate material: hydroxypropyl methyl-cellulose phthalate (HPMCP), a derivative of the biopolymer hydroxypropyl methylcellulose. It is a biodegradable and environmentally friendly material. This study tested the durability and corrosion resistance of HPMCP coatings on highspeed steel in solutions with different pH values and different immersion durations. The electrochemical tests included potentiodynamic polarization and electrochemical impedance spectroscopy. Water channels formed as the coating dissolved in an acidic environment, which degraded its corrosion resistance. However, with prolonged immersion, the corrosion resistance of the system was maintained because iron oxides and chromium oxides were generated between the HPMCP coating and high-speed steel. The corrosion resistance mechanism of HPMCP coatings is proposed and discussed.

AB - This study involved a carbohydrate material: hydroxypropyl methyl-cellulose phthalate (HPMCP), a derivative of the biopolymer hydroxypropyl methylcellulose. It is a biodegradable and environmentally friendly material. This study tested the durability and corrosion resistance of HPMCP coatings on highspeed steel in solutions with different pH values and different immersion durations. The electrochemical tests included potentiodynamic polarization and electrochemical impedance spectroscopy. Water channels formed as the coating dissolved in an acidic environment, which degraded its corrosion resistance. However, with prolonged immersion, the corrosion resistance of the system was maintained because iron oxides and chromium oxides were generated between the HPMCP coating and high-speed steel. The corrosion resistance mechanism of HPMCP coatings is proposed and discussed.

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DO - 10.20964/2021.09.44

M3 - Article

AN - SCOPUS:85111297381

SN - 1452-3981

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JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

M1 - 210935

ER -

Hydroxypropyl Methylcellulose Phthalate Biopolymer as an Anticorrosion Coating

Abstract

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