UV curing and matting of acrylate coatings reinforced by nano-silica and micro-corundum particles

Bauer, Frank; Flyunt, Roman; Czihal, Konstanze; Langguth, H.; Mehnert, R.; Schubert, Rolf; Buchmeiser, Michael R.

doi:10.1016/j.porgcoat.2007.07.005

Cited by 88 publications

(46 citation statements)

References 19 publications

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“…The second method is based on grafting polymeric molecules through covalent bonding to the hydroxyl groups existing on the particles [101]. SM of inorganic nanoparticles has attracted a great deal of attention by the research community and they have been used also in nanoparticle coatings to improve mechanical properties such as flexibility, ductility, hardness, strength and stiffness [131,[154][155][156][157][158]. The majority of earlier studies on SM of nanoparticles are based on nanoclay particles, silica, layered silicate nanoparticles and lately on TiO 2 nanoparticles [121,159-161].…”

Section: Dispersion -Surface Treatmentmentioning

confidence: 99%

Mechanical properties of epoxy nanocomposites using titanium dioxide as reinforcement – A review

Pinto

Bernardo

Amaro

et al. 2015

Construction and Building Materials

129

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Section: Dispersion -Surface Treatmentmentioning

confidence: 99%

Mechanical properties of epoxy nanocomposites using titanium dioxide as reinforcement – A review

Pinto

Bernardo

Amaro

et al. 2015

Construction and Building Materials

129

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“…Indeed, silica is well known for its matting effect imparted to coatings upon its addition. 33 Therefore, it is possible that the matting effect of nanosilica becomes predominant at lower loadings and that nanosilica aggregation effect becomes predominant at higher loadings.…”

Section: Glossmentioning

confidence: 99%

UV-waterborne polyurethane-acrylate nanocomposite coatings containing alumina and silica nanoparticles for wood: mechanical, optical, and thermal properties assessment

2010

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The effect of alumina and silica nanoparticles on mechanical, optical, and thermal properties of UV-waterborne nanocomposite coatings was investigated. The addition of nanoalumina and nanosilica was shown to decrease the hardness because of nanoparticle aggregation. In comparison to the neat coating and despite the presence of aggregates, the scratch resistance of nanocomposite coatings was significantly improved. As expected, the gloss of UV-waterborne coatings was reduced following the addition of nanoparticles due to an increase of the surface roughness. Alumina and silica nanoparticles were found to enhance the glass transition temperature of PUA nanocomposite coatings by hindering the mobility of macromolecular chains at the interface around the nanoparticles. Finally, the interest and efficiency of grafting trialkoxysilanes was demonstrated with the study of nanosilica behavior. Not only was the dispersion of nanosilica enhanced following trialkoxysilanes grafting onto silica nanoparticles, but also the scratch resistance and the adhesion of UV-waterborne coatings containing nanosilica markedly increased even with 1 wt% content. Silica which is recommended in the wooden furniture and kitchen cabinet manufacturing industry as nano-reinforcement provides improved properties well suited in surface coating applications to efficiently protect surface of wood substrates.

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“…The set-up for physical matting is described elsewhere. [5,8,[14][15][16][17][18][19][20][21] Analytical Techniques…”

Section: Coating and Curing Proceduresmentioning

confidence: 99%

“…The latter are typical features (together with high scratch, abrasion, and impact resistance) of modern nanocomposite lacquers. [2][3][4][5][6][7][8][9][10] Zinc oxide shows numerous outstanding properties, such as chemical inertness or good optical characteristics with respect to UV absorption. [11][12][13] It is thus a promising candidate for the role of an efficient light absorber for UV coatings applied on wood surfaces for outdoor use.…”

Section: Introductionmentioning

confidence: 99%

ZnO‐Based UV Nanocomposites for Wood Coatings in Outdoor Applications

Weichelt

Emmler²,

Flyunt

et al. 2010

Macro Materials & Eng

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Nanocomposite UV coatings with adjustable properties for use on wood substrates in outdoor conditions were developed. Nanoscale ZnO was shown to be an efficient light absorber. Coatings were characterized in terms of elongation at brake, residual PI and double bond conversion, universal hardness, transparency, hydrophobicity, and yellowing. Coated samples were artificially weathered and studied with regard to their optical and mechanical properties, as well as to changes in brightness, transparency, hydrophobicity, and water permeability. The prepared wood coatings showed an increased weather fastness and improved optical properties. The suitability for use in outdoor conditions was assured by optimizing the elasticity of the coating and decreasing its water permeability.magnified image

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UV curing and matting of acrylate coatings reinforced by nano-silica and micro-corundum particles

Cited by 88 publications

References 19 publications

Mechanical properties of epoxy nanocomposites using titanium dioxide as reinforcement – A review

Mechanical properties of epoxy nanocomposites using titanium dioxide as reinforcement – A review

UV-waterborne polyurethane-acrylate nanocomposite coatings containing alumina and silica nanoparticles for wood: mechanical, optical, and thermal properties assessment

ZnO‐Based UV Nanocomposites for Wood Coatings in Outdoor Applications

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