تاثیر نانو کامپوزیت اکسید گرافن آمین دار شده بر پایه بنزیدین- اکسید روی بر میزان مقاومت به خوردگی الکتروپوشش‏های کاتدی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده شیمی، دانشگاه آزاد آسلامی، تهران شمال

2 عضو هیات علمی پژوهشگاه رنگ

3 دانشجوی دکترا دانشکده شیمی دانشگاه آزاد اسلامی تهران شمال

4 عضو هیات علمی دانشکده شیمی دانشگاه آزاد اسلامی تهران شمال

چکیده

اکسید گرافن عامل دار شده با بنزیدین و نانوذرات اکسید روی برای بهبود حفاظت در برابر خوردگی سنتز شد. نانوذرات سنتز شده در الکتروپوشش کاتدی پراکنده شد. پوشش حاوی اکسید گرافن آمین دار- اکسید روی بر روی صفحات فولادی اعمال شده و مقاومت به خوردگی آن با آزمون مه نمکی و آزمون طیف سنجی امپدانس الکتروشیمیایی (EIS) بررسی شد. آزمون مه نمکی با درصدهای مختلف نانوذرات (0001/0، 001/0، 01/0 و 02/0 درصد) بعد از 45 روز در محفظه مه نمکی نشان داد که عملکرد ضد خوردگی پوشش‏ حاوی 01/0 درصد کسید گرافن آمین دار- اکسید روی با عمق نفوذ ازمحل خراش 2/1 میلی‏متر بالاترین مقاومت به خوردگی را دارد. نتایج حاصل از آزمون امپدانس الکتروشیمیایی نتایج مه نمکی را تایید کرد. نمونه حاوی 01/0 درصد نانوذرات رفتار مقاومتی بالاتری در برابر کلرید سدیم نشان داد. منحنی‏های باد نمونه با 01/0 درصد نانوذرات در زمان‏های مختلف (3، 7، 15، 30، 45 روز) بررسی شد و نمونه حاوی 01/0 درصد نانوذرات پس از 45 روز بالاترین خاصیت ضد خوردگی را نشان داد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The effect of aminated graphene oxide nanocomposite based on benzidine-zinc oxide on the corrosion resistance of cathode electrocoatings

نویسندگان [English]

  • ُShahram Moradi Dehaghi 1
  • zahra ranjbar 2
  • khosro emamgholi 3
  • Fereshte motiee 4
1 Faculty of chemistry, Islamic Azad University, North Tehran Branch
2 member of institute for color science and technology
3 PhD student of chemical faculty,Islamic Azad University, North Tehran Branch
4 faculty member , chemical faculty, Islamic Azad University , North Tehran Branch
چکیده [English]

In this study, graphene oxide is functionalized with benzidine and zinc oxide nanoparticles to improve adhesion and corrosion resistance properties. Nanoparticles were dispersed in an epoxy-based coating and applied as a coating on steel panels. The corrosion resistance of nano composite coatings was evaluated by salt spray test during 45 days of exposure. The results showed that the anti-corrosion performance of the coating containing 0.01% graphene oxide containing amine-zinc oxide with a penetration depth of 1.2 mm from scratch showed the highest corrosion resistance. The results of the salt spray and EIS tests show that with the increase of nanoparticles up to 0.01%, the anti-corrosion properties increased.

کلیدواژه‌ها [English]

  • graphene oxide
  • zinc oxide nanoparticles
  • benzidine
  • epoxy
  • corrosion
  • EIS

مراجع

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