Preserving anti-corrosion properties of polyurethane based coatings exposed to humidity and UV-radiation using nano Titania
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
View: 1,057
This Paper With 5 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
PPSRC2011_107
تاریخ نمایه سازی: 30 بهمن 1390
Abstract:
Effect of nano TiO2 particles (P25 from Degussa Co.) on the UV protection and also corrosion properties of the coatings based on the aromatic polyurethane was investigated. Coatings were applied on standard phosphated steel panels by cathodically electrodeposition process and also nano TiO2 particles can codeposit on the cathode surface during cathodic electrodeposition. For survey on weathering resistance of the coatings, the coated panels were exposed to UV radiation in QUV chamber for 1080 hours (45days) according to ASTM G53 standard. It was found that in presence of nano titania particles, photodegradation reactions of the aromatic polyurethane network delayed for a longer time also it was found that deep cracks are formed in the films in which no nano titania is present.
Keywords:
polyurethane coatings , nano titania , electrochemical impedance spectroscopy (EIS) , cathodic electrodeposited films , corrosion
Authors
M Rashvand
Department of surface coatings and corrosion, Institute for color science and technology, No. ۵۵, Vafamanesh St., Hossein abaad Sq., Pasdaran Crossing, Tehran, Iran.
Z Ranjbar
Department of surface coatings and corrosion, Institute for color science and technology, No. ۵۵, Vafamanesh St., Hossein abaad Sq., Pasdaran Crossing, Tehran, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :