کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7784277 1500576 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of polyethyleneimine modified graphene on the mechanical and water vapor barrier properties of methyl cellulose composite films
ترجمه فارسی عنوان
اثر گرافن پلی اتیلنیمین اصلاح شده بر خصوصیات مانع مکانیکی و بخار فیلمهای کامپوزیتی متیل سلولز
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
A series of novel methyl cellulose (MC) composite films were prepared using polyethyleneimine reduced graphene oxide (PEI-RGO) as an effective filler for water vapor barrier application. The as-prepared PEI-RGO/MC composites were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, tensile test and scanning electron microscopy. The experimental and theoretical results exhibited that PEI-RGO was uniformly dispersed in the MC matrix without aggregation and formed an aligned dispersion. The addition of PEI-RGO resulted in an enhanced surface hydrophobicity and a tortuous diffusion pathway for water molecules. Water vapor permeability of PEI-RGO/MC with loading of 3.0% of surface modified graphene was as low as 5.98 × 10−11 g m m−2 s−1 Pa−1. The synergistic effects of enhanced surface hydrophobicity and tortuous diffusion pathway were accounted for the improved water vapor barrier performance of the PEI-RGO/MC composite films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 182, 15 February 2018, Pages 52-60
نویسندگان
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