Effect of silane modified nano ZnO on UV degradation of polyurethane coatings

Hằng, Tô Thị Xuân; Dung, Ngo Thanh; Trúc, Trịnh Anh; Dương, Nguyễn Thùy; Truoc, Bui Van; Vũ, Phạm Gia; Hoàng, Thái; Thanh, Đinh Thị Mai; Olivier, Marie‐Georges

doi:10.1016/j.porgcoat.2014.11.008

Cited by 90 publications

(29 citation statements)

References 21 publications

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“…Zinc oxide is an inexpensive and versatile semiconductor material used extensively in everyday applications in many areas. ZnO‐based polymeric nanocomposite materials have attracted scientific society and have many applications in light‐emitting diodes, transparent conductors, UV‐shielding, gas sensing, and antibacterial coatings . There are several possible mechanisms for the antibacterial action of zinc.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical and antibacterial properties of polyurethane coatings modified by ZnO

Król

Pielichowska

Sochacka‐Piętal

2017

Polymers for Advanced Techs

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The synthesis of polyurethane nanocomposite coatings containing 1% to 5% suitably dispersed ZnO by 1-stage polyaddition process in the bulk using 4,4′-methylenebis(cyclohexyl isocyanate), poly(ε-caprolactone)diol, and 1,4-butanediol was performed. Infrared and nuclear magnetic resonance spectra confirmed the structure of obtained polyurethanes. Scanning electron microscope and energy dispersive X-ray analyzer methods showed randomly distributed ZnO in a polyurethane matrix. The differential scanning calorimetry and wide-angle X-ray diffraction patterns were used for the microstructural assessment of the obtained materials. Antimicrobial properties of ZnO and the effect of this modifier on the hydrophobicity of the coatings were demonstrated. The obtained coatings were characterized in terms of the mechanical properties and changes during incubation in a Baxter saline solution. KEYWORDS antimicrobial action of ZnO, bulk polymerization, chemical structure, free surface energy, hydrolysis test, mechanical properties, polyurethane elastomers

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Section: Introductionmentioning

confidence: 99%

Physicochemical and antibacterial properties of polyurethane coatings modified by ZnO

Król

Pielichowska

Sochacka‐Piętal

2017

Polymers for Advanced Techs

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“…Indeed, the presence of the silane modifier DC88, which was added to reduce the surface energy also improved the reference coating's wetting properties reaching a SCA very similar to that of the coating containing 5 wt % of nano-silica (105 • and 104 • , respectively). The presence of silane groups impacts the hydrophobic behaviour by shielding the polar groups of PUR from interaction with water [31,32]. Indeed, coating with both the DC88 modifier and 5 wt.% nano-silica caused further improvement of the hydrophobic behaviour of the coating.…”

Section: Wettability Behaviourmentioning

confidence: 99%

Hydrophobic and Icephobic Behaviour of Polyurethane-Based Nanocomposite Coatings

et al. 2019

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In this paper, hydrophobic nanocomposite coatings based on polyurethane (PUR) modified by nano-silica and silane-based compounds were manufactured by spraying. The main challenge was to assess and improve the hydrophobic as well as anti-icing properties of initially hydrophilic polymer coatings. The prepared nanocomposite coatings were characterized by means of scanning electron microscopy (SEM), optical profilometry and X-ray photoelectron spectroscopy (XPS). The results obtained showed that in order to achieve hydrophobicity, appropriate amounts of nano-silica must be incorporated in the coating, and complete coverage by nano-silica particles is necessary for achieving hydrophobicity. Coating adhesion and the durability of the hydrophobic behaviour were also studied by scratch test and frosting/defrosting cycles, respectively. The results show that use of both nano-silica and silane-based compounds improve the hydrophobic and anti-icing properties of the coating as compared to a non-modified PUR topcoat. A synergistic effect of both additives was observed. It was also found that the anti-icing behaviour does not necessarily correlate with surface roughness and the materials’ wetting properties.

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“…In the last two decades, a significant property improvement has been found by using the above metal oxides nanoparticles in the PU matrix. In particular, ZnO nanoparticle enhances the material properties and is being used in many different areas [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 ].…”

Section: Introductionmentioning

confidence: 99%

Polyurethane/Zinc Oxide (PU/ZnO) Composite—Synthesis, Protective Property and Application

Rahman

2020

Polymers

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A polyurethane (PU) is a multifunctional polymer prepared by using more than two types of monomers. The unique properties of PU come from monomers, thus broadening the applicability of PU in many different sectors. The properties can be further improved by using many nanoparticles. Different metal oxides as nanoparticles are also widely used in PU materials. ZnO is a widely used inorganic metal oxide nanoparticle for improving polymer properties. In this review article, the techniques to prepare a PU/ZnO composite are reviewed; the key protective properties, such as adhesive strength and self-healing, and applications of PU/ZnO composites are also highlighted. This review also highlights the PU/ZnO composite’s current challenges and future prospects, which will help to broaden the composite practical application by preparing environmentally friendly composites.

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Effect of silane modified nano ZnO on UV degradation of polyurethane coatings

Cited by 90 publications

References 21 publications

Physicochemical and antibacterial properties of polyurethane coatings modified by ZnO

Physicochemical and antibacterial properties of polyurethane coatings modified by ZnO

Hydrophobic and Icephobic Behaviour of Polyurethane-Based Nanocomposite Coatings

Polyurethane/Zinc Oxide (PU/ZnO) Composite—Synthesis, Protective Property and Application

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