کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8035311 | 1518054 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural properties of ultraviolet cured polysilazane gas barrier layers on polymer substrates
ترجمه فارسی عنوان
خواص ساختاری لایه های مانع گاز پلی سیلازان درمان شده با فرابنفش بر روی بسترهای پلیمری
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Perhydropolysilazane (PHPS) conversion to silica through high energy ultraviolet irradiation has been studied. Precursor conversion speed and structural properties of the UV cured PHPS have been investigated and showed that this conversion method is fast but that complete conversion into silica is not achieved in an oxygen depleted atmosphere for layer thicknesses higher than 30Â nm, resulting in a composite structure with concentration gradients. We further show that Fourier transform infrared spectroscopy data allow investigating the local structure and composition over the depth of the obtained layers. Gas permeability of the thin UV cured PHPS layers deposited on polymers has been studied. We used a high sensitivity permeation measurement technique to determine water vapor and oxygen permeabilities of the barrier layers and show the correlation between helium, oxygen and water permeability of these materials. Oxygen and water vapor transmission rates of respectively 0.06Â cm3/m2/day/bar and 0.2Â g/m2/day have been obtained with layers deposited on a polymer substrate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 550, 1 January 2014, Pages 85-89
Journal: Thin Solid Films - Volume 550, 1 January 2014, Pages 85-89
نویسندگان
Arnaud Morlier, Stéphane Cros, Jean-Paul Garandet, Nicole Alberola,