Preparation of excellent-water-resistance water-borne alkyd/acrylic hybrid coatings with varied maleic anhydride content

Ouyang, Siming; Lin, Zecheng; Cao, Linyang; Ding, Yong; Shen, Liang

doi:10.1016/j.porgcoat.2021.106537

Cited by 7 publications

(4 citation statements)

References 29 publications

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“…Thermoset polymers and coatings are those, which undergo a permanent, typically nonreversible covalent network formation during the cure or drying process, delivering a range of excellent properties including mechanical strength, hardness, chemical and solvent resistance, water repellence/hydrophobicity, and other desirable coating properties . Alkyd thermoset coatings are used on a large industrial scale, with global consumption reported as high as 1 million tons per annum …”

Section: Introductionmentioning

confidence: 99%

“…3 Alkyd thermoset coatings are used on a large industrial scale, with global consumption reported as high as 1 million tons per annum. 4 The unique benefit of alkyd thermoset coatings is that they are based on the oxidative-drying of fatty acid-functional polyesters, which are a subclass of unsaturated polyesters (UPEs), where the "unsaturation" is located on the pendant fatty acid chains. These are single-component coating systems, benefiting from simple application processes, long application windows, and long shelf-lives, yet are still capable of delivering the performance properties of a thermoset coating (which are typically two component systems, with limited application windows and preapplication mixing requirements).…”

Section: ■ Introductionmentioning

confidence: 99%

“… 3 Alkyd thermoset coatings are used on a large industrial scale, with global consumption reported as high as 1 million tons per annum. 4 …”

Section: Introductionmentioning

confidence: 99%

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Conversion of Contaminated Post-Consumer Polyethylene Terephthalate into a Thermoset Alkyd Coating Using Biosourced Monomers

Thomas,

Lopez,

Railton

et al. 2024

ACS Sustainable Chem. Eng.

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The synthesis of a high-performance oxidative cross-linked thermoset alkyd coating is described that utilizes a novel recycling strategy from contaminated postconsumer waste polyethylene terephthalate (wPET). A single-stage "depolymerization-repolymerization" process has been developed that allows the exploitation of a waste stream from a commercial PET recycling process with 95% efficiency, which, when copolymerized with glycerol and tall oil fatty acid, delivers a sustainable fatty acidfunctional polyester suitable for use in thermoset alkyd coatings. Physical drying challenges have been tackled via the development of a convergent polymer formulation strategy from a single source of wPET and the formulation of the resulting fatty acid-functional polymers with commercial alkyd driers, delivering a thermoset alkyd coating suitable for industrial applications.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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Conversion of Contaminated Post-Consumer Polyethylene Terephthalate into a Thermoset Alkyd Coating Using Biosourced Monomers

Thomas,

Lopez,

Railton

et al. 2024

ACS Sustainable Chem. Eng.

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“…However, the cited study does not propose criteria for assessing the wettability of pigments. Study [13] shows that in order to quantify the change in the wetting of the pigment with a film-forming solution, it is advisable to use the calculated valuethe work of adhesion. The positive side of the cited work is the improvement of the indicators of wetting titanium dioxide with film-forming solutions (reducing the edge angle of wetting) as the adhesion increases.…”

Section: Introductionmentioning

confidence: 99%

Modeling the wetting of titanium dioxide and steel substrate in water-borne paint and varnish materials in the presence of surfactants

Dyuryagina

Луценко

Demyanenko

et al. 2022

EEJET

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This paper reports the results of studying the effect of two additives such as polyether siloxane (PS) and sodium polyacrylate (SPA) on the wetting of various substrates in water-borne paints (WB paints). Titanium dioxide (TiO2), paraffin (PA), steel (ST), and glass (GL) were used as solid substrates. The edge wetting angle (θ0) and the ratio (dCosθ/dСS) were used as the criterion for assessing the wettability of solid substrates. In aqueous solutions (without acrylic resin), both surfactants improve the wetting of the substrates. For PS, all the substrates studied, depending on θ depression, can be arranged in a row: ST>PA>GL>TiO2. For SPA: PA>TiO2>GL>ST. The introduction of an acrylic film-forming agent in the composition enhances the wetting ability of SPA (in comparison with the aqueous solution of surfactants). With an increase in the concentration of SPA from 0 to 4 g/dm3 in acrylic resin solutions, the edge wetting angle of steel decreases by 6÷8° (while in water by only 3°). With respect to TiO2, the wetting activity of SPA does not depend on the acrylic content of the water. PS in acrylic-containing compositions exhibits worse wetting activity than SPA. The introduction of surfactants in the compositions improves the quality of coatings. With optimal SPA contents in the compositions, the corrosion rate of coatings is reduced (in distilled water by 45 %, in 60 % NaCl solution by 60 %). At the same time, the gloss of coatings increases by 50 % while adhesion increases by 2 points (according to ISO 11845: 2020). This is fully correlated with the nature of the effect of surfactants on the wetting of the steel substrate and pigment (titanium dioxide). Based on probabilistic-deterministic planning, the compositions of WB paints were optimized, ensuring their maximum wetting of TiO2 and ST. Equations for calculating cosθ depending on the content of acrylic polymer and surfactants have been derived

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Preparation of excellent-water-resistance water-borne alkyd/acrylic hybrid coatings with varied maleic anhydride content

Cited by 7 publications

References 29 publications

Conversion of Contaminated Post-Consumer Polyethylene Terephthalate into a Thermoset Alkyd Coating Using Biosourced Monomers

Conversion of Contaminated Post-Consumer Polyethylene Terephthalate into a Thermoset Alkyd Coating Using Biosourced Monomers

Modeling the wetting of titanium dioxide and steel substrate in water-borne paint and varnish materials in the presence of surfactants

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