Poly(itaconic acid)-modified chitosan coatings for mitigating corrosion of aluminum substrates

Sugama, T.; Cook, Michael I.

doi:10.1016/s0300-9440(00)00077-1

Cited by 68 publications

(34 citation statements)

References 15 publications

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“…CHTO is utilized as anticorrosion material, however, it absorbs moisture from atmosphere, which penetrates the film easily and deteriorates its performance (Lundvall et al, 2007;Sugama & Cook, 2000). As a remedial approach to employ CHTO as an environmentally green water-based coating system for aluminum (Al) substrates, Sugama et al modified CHTO with polyacid electrolyte, poly(itaconic acid) [PI], containing two negatively charged carboxylic acid groups, with CHTO: PI ratio of 100:0, 90:10, 80:20, 70:30, 50:50, 30:70, and 0:100, by weight, applied on 6061-T6 aluminum (Al) sheet by a simple dip-withdrawing method.…”

Section: Use In Corrosion Resistancementioning

confidence: 99%

“…Increased "grafts" and "crosslinks" formed coatings that were less susceptible to moisture and prevented the penetration of corrosive electrolyte species, providing good corrosion protection to the substrate. CHTO:PI ratio 80:20 was found to be an ideal composition for efficient corrosion protection (Sugama & Cook, 2000). Sugama et al also modified CHTO with corn-starch derived dextrin and applied on Al-6063.…”

Section: Use In Corrosion Resistancementioning

confidence: 99%

See 1 more Smart Citation

Renewable resources in corrosion resistance

Sharmin¹,

Ahmad²,

Zafar³

2012

Corrosion Resistance

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Section: Use In Corrosion Resistancementioning

confidence: 99%

Section: Use In Corrosion Resistancementioning

confidence: 99%

Renewable resources in corrosion resistance

Sharmin¹,

Ahmad²,

Zafar³

2012

Corrosion Resistance

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“…Poor adhesion has been a potential weakness of as-cast chitosan coatings in our studies until now. Additionally, previous studies [3][4][5]have indicated that chitosan coatings are hydrophilic and take up water and electrolyte readily. This behavior can result in poor coating protection.…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Corrosion Resistant Coatings Using the Natural Biopolymer Chitosan

Kumar¹,

Buchheit²

2006

ECS Trans.

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In the present study, chitosan, a derivative of naturally abundant biopolymer chitin, was used as the basis for corrosion resistant coating. Chitosan suffers from two inherent weaknesses as a coating material namely its high hydrophilicity and its poor adhesive strength with Al 2024 T3 alloy. In the present study, chitosan structure was modified using epoxy functional silane and vanadate. Performance of different coatings was tested using electrochemical impedance spectroscopy, adhesion testing and salt spray testing. The best salt spray performance was observed in case of chitosan-(3-Glycidoxypropyl)-trimethoxysilanevanadate coatings, which lasted 450 hours in salt spray chamber without visible corrosion. UV/Visible spectroscopy measurements showed release of vanadate by chitosan increases with increasing solution pH. This property of chitosan provides self-healing characteristics to these coatings. When the solution pH is readjusted to a lower value, chitosan can readsorb released vanadate. FTIR spectra of chitosan gel showed adsorption of vanadate at protonated amine sites. Chitosan showed a maximum in the vanadate adsorption capacity in the pH 3 to 5 range.

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“…As itaconic acid is readily derived from carbohydrates via fungal fermentation, it has been successfully used in a variety of polymer applications [14]. These include as a dienophile for Diels-Alder chemistry in modification of fatty acids [15], grafting of polyitaconic acid onto other polymers [16], and incorporation into epoxy resins [17]. We also studied ethyl cinnamate ( Figure 1C) as a lignin model compound, to determine whether the cinnamyl moieties found in native or isolated lignins (and potentially in bio-oils as well) are reactive with AESO.…”

Section: Introductionmentioning

confidence: 99%

Properties of Thermosets Derived from Chemically Modified Triglycerides and Bio-Based Comonomers

et al. 2013

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A series of materials was prepared by curing acrylated epoxidized soybean oil (AESO) and dibutyl itaconate (DBI) or ethyl cinnamate (EC) comonomers to provide examples of thermosets with a high proportion of bio-based carbon, in accordance with the principles of green chemistry. The comonomers, representative of cellulose-derived (DBI) or potentially lignin-derived (EC) raw materials, were tested at levels of 25%, 33%, and 50% by mass and the resulting products were characterized by infrared spectroscopy, thermogravimetric analysis, and dynamic mechanical analysis. Both DBI and EC were incorporated into the thermosets to a high extent (>90%) at all concentrations tested. The AESO-DBI and AESO-EC blends showed substantial degradation at 390-400 °C, similar to pure AESO. Glass transition temperatures decreased as comonomer content increased; the highest T g of 41.4 °C was observed for AESO-EC (3:1) and the lowest T g of 1.4 °C was observed for AESO-DBI (1:1). Accordingly, at 30 °C the storage modulus values were highest for AESO-EC (3:1, 37.0 MPa) and lowest for AESO-DBI (1:1, 1.5 MPa).

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Poly(itaconic acid)-modified chitosan coatings for mitigating corrosion of aluminum substrates

Cited by 68 publications

References 15 publications

Renewable resources in corrosion resistance

Renewable resources in corrosion resistance

Development and Characterization of Corrosion Resistant Coatings Using the Natural Biopolymer Chitosan

Properties of Thermosets Derived from Chemically Modified Triglycerides and Bio-Based Comonomers

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