کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5465483 1517565 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Excellent corrosion protection performance of epoxy composite coatings filled with amino-silane functionalized graphene oxide
ترجمه فارسی عنوان
عملکرد عالی حفاظت از خوردگی پوشش های کامپوزیت اپوکسی پر شده با اکسید گرافین فعال شده با آمینو سیلان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی


- GO Dispersion in epoxy matrix improves via APTES silane functionalization (A-GO).
- Adhesion of epoxy coating increases significantly by adding 0.1 wt% A-GO nanosheets.
- Epoxy coatings containing 0.1 wt% A-GO show superior corrosion resistance.

Epoxy coatings containing graphene oxide (GO) and amino-silane modified GO (A-GO) with various weight fractions (0.05, 0.1, 0.3, and 0.5 wt%) are prepared to investigate the effect of silane modified GO on performance of nanocomposite coatings. (3-Aminopropyl) triethoxysilane (APTES) is used as organosilane for A-GO synthesis. A-GO is characterized by FTIR, XRD, FE-SEM, and EDS. The dispersion quality of nanosheets in epoxy coating is examined by FE-SEM, revealing the interfacial interaction of GO in coating has improved via silane modification. Besides, the pull-off adhesion strength of epoxy coating to substrate increases by about two times via adding A-GO. The results of electrochemical impedance spectroscopy show that epoxy/A-GO coatings can provide superior corrosion protection performance and maximum corrosion resistance is achieved via adding 0.1 wt% A-GO. By increasing the loading of A-GO, the barrier properties decrease due to agglomeration of nanosheets in polymer matrix.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 317, 15 May 2017, Pages 1-9
نویسندگان
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