Formulation, structure and properties of waterborne polyurethane coatings: a brief review

Mucci, Verónica L.; Hormaiztegui, María E. V.; Amalvy, Javier I.; Aranguren, Mirta I.

doi:10.1080/01694243.2023.2240587

Cited by 16 publications

(1 citation statement)

References 120 publications

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“…The rheological property is a very important factor determining the processibility and end-use property of a polymer material [43,44]. For instance, in the coating industry, the flow behavior of coatings during application, as well as the stability at storage and surface leveling at film consolidation are significantly affected by the rheological property [45]. The viscosity arises from the interaction among the particles in dispersion.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and rheological performance of shear-thickening waterborne polyurethane

Wang,

Zhang,

et al. 2024

Mater. Res. Express

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Shear-thickening fluids (STFs) are a new type of intelligent material with excellent performance whose viscosity increase sharply with the increase of shear rate or shear stress. However, the synthesis yield of dispersed phase particles is low, and the particle re-dispersion process is challenging for the industrial production of STFs. In this work, through structural design, a waterborne polyurethane (WPU) with typical shear-thickening properties was synthesized for the first time. This synthesis process is conducive to industrial production. The rheological properties of the synthesized WPU at different concentrations, temperatures, and pH were studied using a rheometer. The results showed that the WPU exhibited typical shear-thickening behavior. However, due to the special core-shell structure of the WPU particles, the shear rate has two transition responses to the shear-thickening behavior. With increasing concentration, the shear-thickening performance of the WPU is enhanced, and the critical shear rate is decreased. For the coexistence of Brownian motion and solvation, the rheological curve of the WPU exhibits a complex response to temperature increase; its shear-thickening behavior decreases with rising temperature, but the viscosity first decreases and then increases with temperature. Due to the presence of carboxyl groups on the surface of the WPU particles, its shear-thickening performance shows a strong response to pH. By appropriately adjusting the pH, the viscosity and particle size of the WPU can be increased through the ionization of carboxyl groups, thereby enhancing the shear-thickening behavior.

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Section: Introductionmentioning

confidence: 99%

Synthesis and rheological performance of shear-thickening waterborne polyurethane

Wang,

Zhang,

et al. 2024

Mater. Res. Express

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Advances in interfacially engineered surface‐functionalized fillers for multifunctional polymer composite coatings

Maalihan,

Domalanta,

Corrales

et al. 2024

Polymer Composites

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The demand for multifunctional, high‐performance materials has driven advancements in surface‐functionalized fillers for polymer composite coatings. Despite progress, integrating multiple protective properties within a single hybrid formulation remains a challenge. This review explores recent developments in surface and interfacial engineering of biosourced fillers, including nanocellulose, and 2D materials like graphene oxide, MXenes, and layered double hydroxides, all of which have the potential to enhance the chemical resistance, mechanical strength, and thermal stability of polymer coatings. Key strategies include physical/chemical surface treatments, nanostructuring, and multiscale engineering to optimize cohesion, adhesion, and multivalent interactions among fillers, matrices, and substrates. The role of computational modeling in performance prediction and optimization is also discussed. The review concludes with current challenges and future directions, highlighting the importance of surface functionalization and interfacial engineering in developing next‐generation, multifunctional, and protective polymer coatings.Highlights Functionalized fillers boost polymer coatings' performance. 2D nanomaterials enhance coatings' resistance to corrosion, wear, and fire. Bio‐based fillers offer sustainable solutions for lightweight, robust coatings. Advanced interfacial engineering improves adhesion and coating durability. Modeling accelerates coating design by predicting interfacial interactions.

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Preparation and coating properties of alkyd polyol-based autoxidizable waterborne polyurethane dispersions with high fatty acid content, long storage stability, and low viscosity

Lin,

Zeng,

Zhang

et al. 2024

J Coat Technol Res

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Formulation, structure and properties of waterborne polyurethane coatings: a brief review

Cited by 16 publications

References 120 publications

Synthesis and rheological performance of shear-thickening waterborne polyurethane

Synthesis and rheological performance of shear-thickening waterborne polyurethane

Advances in interfacially engineered surface‐functionalized fillers for multifunctional polymer composite coatings

Preparation and coating properties of alkyd polyol-based autoxidizable waterborne polyurethane dispersions with high fatty acid content, long storage stability, and low viscosity

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