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The Effect of Gptms-Modified Zno Nanoparticles on the Weathering Performance of Epoxy Silicon Coatings
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DOR
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20.1001.2.0021079099.1400.8.1.79.9
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نویسنده
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Yari Hossein
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منبع
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كنگره بين المللي رنگ و پوشش - 1400 - دوره : 8 - کنگره بین المللی رنگ و پوشش - کد همایش: 00210-79099 - صفحه:1 -1
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چکیده
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This article focuses on the modification of zno nanoparticles by gptms and their inclusion within epoxy silicone (ep-si) coatings. the coatings were exposed to the accelerated aging in a quv weathering test chamber and removed after pre-determined durations (0, 500 and 1000 h) for further characterization. the principal object is to take the benefits of zno nanoparticles in raising the long-term weathering performance of exterior nanocomposites. the influence of various loadings of modified zno nanoparticles (0.1%, 0.5 and 1wt. %) on the ep-si coating weathering stability was studied. all coatings were characterized by scanning electron microscopy (sem), fourier transform infrared spectroscopy (ftir), contact angle, optical microscope (om) and gonio-spectrophotometer. the results demonstrated that while modified nanoparticles addition reduced the ep-si coating degradation, its lower loading (0.1wt%) had more remarkable protection (35% reduction in ∆e) which was chiefly attributed to the significant increment in uv shielding.
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کلیدواژه
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Epoxy Silicon Coating ,Zno Nanoparticle ,Weathering ,Contact Angle ,Sem
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آدرس
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Amirkabir University Of Technology, Iran, Institute For Color Science And Technology, Department Of Surface Coating And Corrosion, Iran, Institute For Color Science And Technology (Icst), Iron
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The effect of GPTMS-modified ZnO Nanoparticles on the weathering performance of Epoxy silicon coatings
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Authors
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Yari Hossein
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Abstract
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This article focuses on the modification of ZnO nanoparticles by GPTMS and their inclusion within epoxy silicone (Ep-Si) coatings. The coatings were exposed to the accelerated aging in a QUV weathering test chamber and removed after pre-determined durations (0, 500 and 1000 h) for further characterization. The principal object is to take the benefits of ZnO nanoparticles in raising the long-term weathering performance of exterior nanocomposites. The influence of various loadings of modified ZnO nanoparticles (0.1%, 0.5 and 1wt. %) on the Ep-Si coating weathering stability was studied. All coatings were characterized by Scanning Electron Microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), contact angle, optical microscope (OM) and gonio-spectrophotometer. The results demonstrated that while modified nanoparticles addition reduced the Ep-Si coating degradation, its lower loading (0.1wt%) had more remarkable protection (35% reduction in ∆E) which was chiefly attributed to the significant increment in UV shielding.
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Keywords
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Epoxy silicon coating ,ZnO Nanoparticle ,Weathering ,Contact angle ,SEM
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