کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7835586 | 1503535 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure and corrosion resistance of a fluorosilane modified silane-graphene film on 2024 aluminum alloy
ترجمه فارسی عنوان
ریزساختار و مقاومت در برابر خوردگی یک فیلم سیلان گرافین اصلاح شده فلورسیلان بر روی آلیاژ آلومینیوم 2024
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Heptadecafluorodecyl trimethoxysilane (FAS-17) was incorporated into γ-(2,3-epoxypropoxy) propyltrimethoxysilane/graphene (GPTMS/rGO) by adding pre-hydrolyzed FAS-17 solution in GPTMS solution, and a hybrid silane-graphene film (FG/rGO) was prepared on 2024 aluminum alloy surface. The FG/rGO film showed better thermal shock resistance, good adhesion force and high micro-hardness, compared with GPTMS/rGO film. In neutral 3.5â¯wt% NaCl solution, the corrosion current density for 2024 AA sample with FG/rGO film was 3.40â¯Ãâ¯10â3â¯Î¼A/cm2, which is about one fifth of that for the sample with GPTMS/rGO film. In acidic and alkaline NaCl solutions, the FG/rGO film also showed obviously better corrosion resistance than GPTMS/rGO film. EIS results confirm that the FG/rGO film showed longer performance than GPTMS/rGO film for 2024 AA in NaCl solution. The hydrophobic FAS-17 increased water contact angle of the film surface from 68° to 113°, and changed the stacking structure of graphene in the film. The higher crosslink degree and less interfaces promoted the barrier property of FG/rGO film against aggressive ions and prolonged the performance time in NaCl solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 437, 15 April 2018, Pages 152-160
Journal: Applied Surface Science - Volume 437, 15 April 2018, Pages 152-160
نویسندگان
Yuchao Dun, Xuhui Zhao, Yuming Tang, Sahib Dino, Yu Zuo,