Water sensitivity of fluorine-containing polyacrylate latex coatings: Effects of crosslinking and ambient drying conditions

Machotová, Jana; Černošková, E.; Honzı́ček, Jan; Šňupárek, Jaromı́r

doi:10.1016/j.porgcoat.2018.03.016

Cited by 40 publications

(21 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is known that a serious disadvantage of latex coatings is a poor water resistance, usually accompanied with water whitening, loss of adhesion, and deterioration of mechanical properties. As increasing crosslink density has been used as an effective way to enhance water resistivity of latex coatings [13,56], the prepared coating films combining covalent and ionic self-crosslinking were also subjected to testing of water resistance (symbolized by water absorption and water whitening). The time curves of water absorption into coating films are displayed in Figures 7 and 8.…”

Section: Coating Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Waterborne Coating Binders Based on Self-Crosslinking Acrylic Latex with Embedded Inorganic Nanoparticles: A Comparison of Nanostructured ZnO and MgO as Crosslink Density Enhancing Agents

et al. 2020

Self Cite

View full text Add to dashboard Cite

This paper is focused on a simple preparation of functional acrylic latex coating binders comprising embedded nanoparticles originating from ZnO and MgO, respectively, in the role of interfacial ionic self-crosslinking agents. The incorporation of surface-untreated powdered nano-oxides into the coating binder was achieved in the course of the latex synthesis performed by a technique of the two-step emulsion polymerization. By means of this technological approach, latexes comprising dispersed nanoparticles in the content of ca 0.5–1.1 wt % (based on solids) were successfully prepared. For the interfacial covalent self-crosslinking, diacetone acrylamide repeat units were introduced into the latex polymer to ensure functionalities for the subsequent reaction with adipic acid dihydrazide. The latex storage stability and coating performance were compared with respect to the type and concentration of the incorporated nanoparticles. It was determined that all latex coating binders comprising nanoparticles exhibited long-term storage stability and provided interfacially crosslinked transparent smooth coating films of high gloss, excellent solvent resistance, and favorable physico-mechanical properties. Moreover, latexes with embedded nanoparticles, which originated from MgO, manifested a pronounced drop in minimum film forming temperature and provided highly water whitening resistant coating films.

show abstract

Section: Coating Propertiesmentioning

confidence: 99%

“…Although ZnO is sparingly soluble in water (a few ppm), it has been determined that it neutralizes carboxylated latexes in the wet state and cures them upon drying. Combined with covalent crosslinking, ionic self-crosslinking is referred to impart non-blocking resistance, hardness, adhesion, water, and solvent resistance [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Waterborne Coating Binders Based on Self-Crosslinking Acrylic Latex with Embedded Inorganic Nanoparticles: A Comparison of Nanostructured ZnO and MgO as Crosslink Density Enhancing Agents

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…To this end, different approaches have been developed to improve the water whitening resistance of latex films, such as using polymerizable or reactive surfactants, macromolecular surfactant, no surfactant, increasing the density of the polymer network by using crosslinking agents, removing water‐soluble species by centrifugation, dialysis, precipitation, using ion exchange resins, and so forth, adjusting the pH of the emulsion, copolymerizing fluoride monomers preparation of polymer latex with multiple layer core–shell structure, and so forth…”

Section: Introductionmentioning

confidence: 99%

“…Naturally, this phenomenon is not expected to occur in markets and applications such as film labels, including bottle labels, shampoo labels, food labels, and so forth. [4][5][6][7][8][9][10][11][12][13][14][15][16][17] To this end, different approaches have been developed to improve the water whitening resistance of latex films, such as using polymerizable or reactive surfactants, [17][18][19] macromolecular surfactant, 20 no surfactant, 21 increasing the density of the polymer network by using crosslinking agents, 22,23 removing watersoluble species by centrifugation, dialysis, precipitation, using ion exchange resins, and so forth, 24,25 adjusting the pH of the emulsion, copolymerizing fluoride monomers 26,27 preparation of polymer latex with multiple layer core-shell structure, and so forth. 28 The main components of a polyacrylate emulsion include soft and hard monomers, as well as small amount of functional monomers.…”

Section: Introductionmentioning

confidence: 99%

Glass‐transition temperature of a polyacrylate latex film and its water whitening resistance

Luo

Huang

2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polyacrylate latex materials have become a hot area recently in China due to its environmental friendliness. However, the water whitening resistance of the polyacrylate latex products in the market is largely unsatisfactory, which seriously affects the appearance and performance of the latex products. In this work, the effect of glass‐transition temperature (Tg) of a polyacrylate latex film on its water whitening resistance was investigated. The light transmittance measurement showed that the higher the Tg of the latex film, the better the water whitening resistance. Atomic force microscope, surface element analysis, static water contact angle measurement, and attenuated total reflection–Fourier transform infrared were used to characterize the accumulation of the emulsifier on the surface of the latex film. It was found that the amount of emulsifier migrated to the surface of the latex film increased with the increase of the Tg of the latex film, that is, the amount of emulsifier remained inside the latex film decreased, thereby reducing its affinity to water. In addition, the higher the Tg of the latex film, the lower the water absorption, also reducing the affinity of the latex film to water. Both work together to improve the water whitening resistance of polyacrylate latex film with higher Tg. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48361.

show abstract

“…To tackle those limitations of waterborne alkyd resin, researchers had tried to improve the performance of coatings by introducing different functional components, such as fluorine, acrylic, silicone, and so on . In particular, fluorine‐containing polymers and organosilicone are highly valued for their ultralow surface tension, weather‐resistant, excellent inertness to solvents, hydrocarbons, acids, alkalis, and moisture, as well as corrosion resistance due to the high bond strength of carbon‐fluorine bond, the low polarizability, and the strong electronegativity of the fluorine atom . For example, Selim et al studied hyperbranched alkyd/magnetite‐silica nanocomposite as a coating material by solution casting, which had good anticorrosive performance.…”

Section: Introductionmentioning

confidence: 99%

Cross‐linked waterborne alkyd hybrid resin coatings modified by fluorinated acrylate‐siloxane with high waterproof and anticorrosive performance

Zhong

et al. 2018

Polymers for Advanced Techs

View full text Add to dashboard Cite

Waterborne alkyd resin coatings are ideal for use as corrosion protection coatings because of its high cost-effective and environmental advantages. However, their uses are restricted to general applications due to their poor acid, water, and alkali resistance. In this work, waterborne alkyd hybrid resins modified with fluorinated acrylate-siloxane were synthesized via a surfactant-free miniemulsion polymerization process using maleic anhydride and silicon modified alkyd resin, dodecafluoroheptyl methacrylate, methyl methacrylate, and butyl acrylate as monomers. And then, crosslinking alkyd resin films were prepared at room temperature using trimethylolpropane-tris-(β-N-azir-idinyl) propionate (XR-100) as the crosslinking agent. The acquired films had lower water absorption and higher water contact angles and had better mechanical/thermal properties, as well as good waterproof property.Most importantly, the electrochemical corrosion studies revealed that the cross-linked coating exhibited superior corrosion resistance performance with an inhibition efficiency of 99.95% and a corrosion rate of 6.95 × 10 −3 mm per year.

show abstract

Water sensitivity of fluorine-containing polyacrylate latex coatings: Effects of crosslinking and ambient drying conditions

Cited by 40 publications

References 38 publications

Waterborne Coating Binders Based on Self-Crosslinking Acrylic Latex with Embedded Inorganic Nanoparticles: A Comparison of Nanostructured ZnO and MgO as Crosslink Density Enhancing Agents

Waterborne Coating Binders Based on Self-Crosslinking Acrylic Latex with Embedded Inorganic Nanoparticles: A Comparison of Nanostructured ZnO and MgO as Crosslink Density Enhancing Agents

Glass‐transition temperature of a polyacrylate latex film and its water whitening resistance

Cross‐linked waterborne alkyd hybrid resin coatings modified by fluorinated acrylate‐siloxane with high waterproof and anticorrosive performance

Contact Info

Product

Resources

About