کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5351444 | 1503562 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Corrosion protection performance of waterborne epoxy coatings containing self-doped polyaniline nanofiber
ترجمه فارسی عنوان
عملکرد محافظت در برابر خوردگی پوشش های اپوکسی آب که حاوی نانوسیم های پلیانیلن خودباخته است
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کلمات کلیدی
پلی یانیل سولفون شده، خود دوپینگ، حفاظت در برابر خوردگی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Self-doped sulfonated polyaniline (SPANi) nanofiber was synthesized by the copolymerization of 2-aminobenzenesulfonic acid (ASA) and aniline via a rapid mixing polymerization approach. The chemical structure of SPANi was investigated by the Fourier-transform infrared (FT-IR), Raman, X-ray photoelectron spectroscopy (XPS), UV-vis spectra and X-ray diffraction (XRD) pattern. The as-prepared SPANi nanofibers had 45Â nm average diameter and length up to 750Â nm as measured by scanning electron microscope (SEM) and transmission electron microscope (TEM). The self-doped SPANi nanofiber possessed excellent aqueous solubility, good conductivity (0.11Â S/cm) and reversible redox activity, making it suitable as a corrosion inhibitor for waterborne coatings. The prepared SPANi/waterborne epoxy composite coatings exhibited remarkably improved corrosion protection compared with pure waterborne epoxy coating as proved by the polarization curves and electrochemical impedance spectroscopy (EIS). The passivation effect of SPANi nanofiber and the corrosion products beneath the epoxy coatings immersed in 3.5% NaCl solution as a function of time were also investigated in this study.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 407, 15 June 2017, Pages 213-222
Journal: Applied Surface Science - Volume 407, 15 June 2017, Pages 213-222
نویسندگان
Shihui Qiu, Cheng Chen, Mingjun Cui, Wei Li, Haichao Zhao, Liping Wang,