Enhanced near-infrared reflectance and functional characteristics of Al-doped ZnO nano-pigments embedded PMMA coatings

Soumya, S.; Mohamed, Alaa; Mohan, K.; Ananthakumar, S.

doi:10.1016/j.solmat.2015.07.012

Cited by 48 publications

(19 citation statements)

References 35 publications

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“…7b. A narrow 1100 nm wavelength radiation was chosen for our experiment19. From the data obtained (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Inorganic materials such as aluminum, zinc and titanium based metal oxides with NIR reflectance property and super hydrophobicity have been synthesized and reported in literature1920. Organic fluorophores with high reflectance in the NIR region are rare and incorporation of these into a nanoparticle lattice offers many advantages such as low cost, biocompatiblity and easy accessibility.…”

mentioning

confidence: 99%

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Synthesis and Characterization of Superhydrophobic, Self-cleaning NIR-reflective Silica Nanoparticles

Deepa

Reed

Annamalai

et al. 2016

Sci Rep

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Multifunctional coatings offer many advantages towards protecting various surfaces. Here we apply aggregation induced segregation of perylene diimide (PDI) to control the surface morphology and properties of silica nanoparticles. Differentially functionalized PDI was incorporated on the surface of silica nanoparticles through Si-O-Si bonds. The absorption and emission spectra of the resultant functionalised nanoparticles showed monomeric or excimeric peaks based on the amounts of perylene molecules present on the surface of silica nanoparticles. Contact angle measurements on thin films prepared from nanoparticles showed that unfunctionalised nanoparticles were superhydrophilic with a contact angle (CA) of 0°, whereas perylene functionalised silica particles were hydrophobic (CA > 130°) and nanoparticles functionalised with PDI and trimethoxy(octadecyl)silane (TMODS) in an equimolar ratio were superhydrophobic with static CA > 150° and sliding angle (SA) < 10°. In addition, the near infrared (NIR) reflectance properties of PDI incorporated silica nanoparticles can be used to protect various heat sensitive substrates. The concept developed in this paper offers a unique combination of super hydrophobicity, interesting optical properties and NIR reflectance in nanosilica, which could be used for interesting applications such as surface coatings with self-cleaning and NIR reflection properties.

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“…7b. A narrow 1100 nm wavelength radiation was chosen for our experiment19. From the data obtained (Fig.…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Synthesis and Characterization of Superhydrophobic, Self-cleaning NIR-reflective Silica Nanoparticles

Deepa

Reed

Annamalai

et al. 2016

Sci Rep

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“…To our knowledge, we report the first covalently embedded polymer-NP composite with favourable optical properties suitable for window coatings; related systems include the formation of composites consisting of Al, Ag, Au, Cu, Pt, ZnO and Fe nanoparticles embedded in polyacrylate, Teflon, polyvinyl(methyl ketone), poly(vinyl pyrrolidone), polyethylene, polydimethylsiloxane or PMMA. 21,[23][24][25][26][27][28][29]…”

Section: Introductionmentioning

confidence: 99%

Efficient NIR light blockage with matrix embedded silver nanoprism thin films for energy saving window coating

et al. 2016

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“…The usage of inorganic UV absorbers can be a good alternative for the stability of thermoplastic polymers under weather conditions. Wide band-gap oxides such as titanium dioxide (TiO 2 ) and zinc oxide (ZnO) have been added as inorganic fillers into the PMMA matrix in order to modify its optical properties in the UV region [8][9][10][11][12]. As one of the most versatile semiconductors, cerium dioxide (CeO 2 ) can be used as a solar absorber.…”

Section: Introductionmentioning

confidence: 99%

Thermal, Mechanical and UV-Shielding Properties of Poly(Methyl Methacrylate)/Cerium Dioxide Hybrid Systems Obtained by Melt Compounding

et al. 2015

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Thick and homogeneous hybrid film systems based on poly(methyl methacrylate) (PMMA) and CeO2 nanoparticles were synthesized using the melt compounding method to improve thermal stability, mechanical and UV-shielding properties, as well as to propose them for use in the multifunctional materials industry. The effect of the inorganic phase on these properties was assessed by using two different weight percentages of synthesized CeO2 nanoparticles (0.5 and 1.0 wt %) with the sol–gel method and thermal treatment at different temperatures (120, 235, 400, 600 and 800 °C). Thereafter, the nanoceria powders were added to the polymer matrix by single screw extrusion. The absorption in the UV region was increased with the crystallite size of the CeO2 nanoparticles and the PMMA/CeO2 weight ratio. Due to the crystallinity of CeO2 nanoparticles, the thermal, mechanical and UV-shielding properties of the PMMA matrix were improved. The presence of CeO2 nanostructures exerts an influence on the mobility of PMMA chain segments, leading to a different glass transition temperature.

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Enhanced near-infrared reflectance and functional characteristics of Al-doped ZnO nano-pigments embedded PMMA coatings

Cited by 48 publications

References 35 publications

Synthesis and Characterization of Superhydrophobic, Self-cleaning NIR-reflective Silica Nanoparticles

Synthesis and Characterization of Superhydrophobic, Self-cleaning NIR-reflective Silica Nanoparticles

Efficient NIR light blockage with matrix embedded silver nanoprism thin films for energy saving window coating

Thermal, Mechanical and UV-Shielding Properties of Poly(Methyl Methacrylate)/Cerium Dioxide Hybrid Systems Obtained by Melt Compounding

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