Alkyd-urethane resins based on castor oil: Synthesis, characterization and coating properties

Villada, Yurany Andrea Villada; Inciarte, Helen; Gómez, Claudia L.; Cardona, Sandra M.; Orozco, Laura M.; Estenoz, Diana Alejandra; Ríos, Luis Alberto

doi:10.1016/j.porgcoat.2023.107556

Cited by 7 publications

(5 citation statements)

References 30 publications

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“…[21] The characteristic peak at about 2250 cm À 1 represents À NCO of HDI, which completely disappeared after the polymerization reaction. The absorption peak at about 1737 cm À 1 can be attributed to the vibration of C=O bond in À COOÀ and À NHCOOÀ , [22] which originates from the reaction between À OH and À NCO. The band at 1284 cm À 1 is assigned to the CÀ F. The XPS spectra of the PTUBAF (Figure 3b and Figure S3a-d) validate the PTUBAF contained C, Si, S, N, F and O.…”

Section: Structure and Characterization Of The Ptubafmentioning

confidence: 99%

Enhanced adhesive and mechanically robust silicone‐based coating with excellent marine anti‐fouling and anti‐corrosion performances

Li,

He,

Wang

et al. 2024

Chemistry A European J

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Poly(dimethylsiloxane) (PDMS) is widely used in marine antifouling coatings due to its low surface energy property. However, certain drawbacks of PDMS coatings such as poor surface adhesion, weak mechanical properties, and inadequate static antifouling performance have hindered its practical applications. Herein, condensation polymerization is utilized to prepare PDMS‐based polythiamine ester (PTUBAF) coatings that consist of PDMS, polytetrahydrofuran (PTMG), 2, 3, 5, 6‐tetrafluoro‐1, 4‐benzenedimethanol (TBD) as the main chains and isobornyl acrylate(IBA) as the antifouling group. The surface adhesion to the substrate is enhanced due to the hydrogen bond between the coated carbamate group and the hydroxyl group on the surface of the substrate. Mechanical properties of PTUBAF are significantly improved due to the benzene ring and six‐membered ring biphase hard structure. The strong synergistic effect of bactericidal groups and low surdace energy endows the PTUBAF coating with outstanding antifouling performance. Due to the low surface energy surface, the PTUBAF coatings are also found to possess excellent anti‐corrosion. Furthermore, since the PTUBAF coatings exhibit a visible light transmittance of 91%, they can applied as protective films for smartphones. The proposed method has the potential to boost the production and practical applications of silicone‐based coatings.

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Section: Structure and Characterization Of The Ptubafmentioning

confidence: 99%

Enhanced adhesive and mechanically robust silicone‐based coating with excellent marine anti‐fouling and anti‐corrosion performances

Li,

He,

Wang

et al. 2024

Chemistry A European J

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“…Even though alkyd urethane resins are acknowledged for their robust UV resistance [73], the samples underwent an exceptionally intense UV-B radiation exposure to assess the pigment's long-term visual endurance. Indeed, not just the three series of samples, but the individual pigment was also subjected to the accelerated degradation test.…”

Section: Outdoor Resistancementioning

confidence: 99%

Assessing the Impact of Sepiolite-Based Bio-Pigment Infused with Indigo Extract on Appearance and Durability of Water-Based White Primer

Calovi,

Rossi

2024

Materials

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The objective of this study is to evaluate how two varying amounts of sepiolite-based powder, infused with indigo extract, affect the appearance and durability of a water-based, white primer. To examine the influence of this eco-friendly pigment on the coatings’ overall appearance, assessments were performed for color, gloss, and surface roughness. Additionally, the coatings were investigated through optical and electron microscopic observations, to evaluate the distribution of the pigment within the polymer matrix. The effect of the pigment on the coating’s durability was assessed through accelerated tests, including exposure in a salt spray chamber and a UV-B chamber. These tests aimed to evaluate the emergence of defects and changes in the appearance of the samples over time. Furthermore, the impact of different quantities of sepiolite-based powder on the coating’s ability to act as a barrier was assessed using liquid resistance tests and contact angle measurements. These evaluations aimed to understand how the coating responded to various liquids and its surface properties concerning repellency or absorption. In essence, this study underscores the considerable influence of the eco-friendly pigment, demonstrating its capacity to introduce unique color and texture variations in the paint. Moreover, the inclusion of the pigment has enhanced the coating’s color stability, its ability to act as a barrier, and its overall durability when exposed to harsh environments.

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“…Alkyds exhibit high durability and gloss retention while suffering from poor resistance against chemicals (especially alkaline) because of the presence of many ester units [Chardon et al 2021 ]. Since fatty acids are made from sustainable resources, their lower cost as alkyd components also makes them more affordable [Villada et al 2023 ]. Alkyds were traditionally dried in air or at a higher temperature using an oven.…”

Section: Coating Properties Of Alkyd Resinsmentioning

confidence: 99%

Durable graphene-based alkyd nanocomposites for surface coating applications

Selim,

El-hoshoudy,

Zaki

et al. 2024

Environ Sci Pollut Res

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Recently, the scientific community’s main goal is the long-term sustainability. Vegetable oils are easily accessible, non-depletable, and cost-effective materials. Vegetable oils are used to prepare polymeric alkyd surfaces. Novel and exciting designs of alkyd/graphene nanocomposites have provided eco-friendly thermal stability and protective coating surfaces. This review has briefly described important graphene-based alkyd nanocomposites along with their applications as protective coatings. These alkyd composites have high hydrophobicity, corrosion resistance, and durability. Graphene-based alkyd nanocoatings have many industrial and research interests because of their exceptional thermal and chemical properties. This work introduces an advanced horizon for developing protective nanocomposite coatings. The anti-corrosion properties and coatings’ longevity may be improved by combining the synergistic effects of hybrid nanofillers introduced in this work.

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Alkyd-urethane resins based on castor oil: Synthesis, characterization and coating properties

Cited by 7 publications

References 30 publications

Enhanced adhesive and mechanically robust silicone‐based coating with excellent marine anti‐fouling and anti‐corrosion performances

Enhanced adhesive and mechanically robust silicone‐based coating with excellent marine anti‐fouling and anti‐corrosion performances

Assessing the Impact of Sepiolite-Based Bio-Pigment Infused with Indigo Extract on Appearance and Durability of Water-Based White Primer

Durable graphene-based alkyd nanocomposites for surface coating applications

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