کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7213480 | 1469418 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrically conductive rubbery epoxy/diamine-functionalized graphene nanocomposites with improved mechanical properties
ترجمه فارسی عنوان
نانوکامپوزیت های گرافن اپوکسی / دیامین و گرافیتی دارای خواص مکانیکی بهبود یافته با الکترولیتیک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
Simultaneous reduction and surface functionalization of graphene oxide (GO) was achieved by refluxing GO with a diamine, polyetheramine (D230) at 95 °C followed by thermal treatment at 120 °C. The D230-treated GO (GO-D230) exhibits a high electrical conductivity of 1.0 S/m, much higher than that of GO, due to the chemical and thermal reduction. The incorporation of GO-D230 significantly improves the electrical conductivity of epoxy, exhibiting a sharp transition from electrically insulating to conducting with a low percolation threshold of 0.78 vol%. With 2.7 vol% of GO-D230, the electrical conductivity of its epoxy nanocomposite is 1.0 Ã 10â4 S/m, nearly 11 orders of magnitude higher than that of neat epoxy; meanwhile, compared to the low Young's modulus and tensile strength of the rubbery epoxy, those of the nanocomposite are increased by 536% and 269%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 67, December 2014, Pages 564-570
Journal: Composites Part B: Engineering - Volume 67, December 2014, Pages 564-570
نویسندگان
Gongqing Tang, Zhi-Guo Jiang, Xiaofeng Li, Hao-Bin Zhang, Song Hong, Zhong-Zhen Yu,