کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1486921 1510695 2016 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical and anticorrosion behaviors of hybrid functionalized graphite nano-platelets/tripolyphosphate in epoxy-coated carbon steel
ترجمه فارسی عنوان
رفتارهای الکتروشیمیایی و ضد خوردگی نانو پلاکتها / تراپی پلی فسفات گرافیت عملکردی هیبرید در فولاد کربن اپوکسی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی


• FGNP was combined with TPP to obtain a hybrid nano-particle.
• TEM image showed uniform distribution of the hybrid nanoparticles in epoxy coating.
• FGNP is a substrate for linking of TPP anions by hydrogen bonding.
• FGNP as an accelerator, provides rapid iron phosphate passive film formation.
• The hybrid nano-particle can provide long-term corrosion protection.

Functionalized graphite nano-platelets (FGNP) were combined with tripolyphosphate (TPP) to gain a hybrid nano-particle (FGNP-TPP) with homogenous dispersion in epoxy, resulting in an excellent anti-corrosion coating for carbon steel substrate. Characterization analyses of the hybrid nano-particle were performed by FT-IR, SEM, XRD and TEM. TPP was linked to FGNP nano-particles by hydrogen bondings. Different epoxy coatings formulated with 1 wt.% of FGNP, FGNP-TPP and TPP were evaluated. Electrochemical investigations, salt spray and pull-off tests showed that the hybrid nano-particle can provide long-term corrosion protection compared to FGNP and TPP due to synergistic effect between FGNP as an accelerator and TPP as a corrosion inhibitor to produce a uniform and stable iron-phosphate passive film with high surface coverage.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 80, August 2016, Pages 7–22
نویسندگان
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