The Effect of Nano Silica Particles on Appearance and Curing Process of Automotive Clearcoats
- سال انتشار: 1387
- محل انتشار: دومین کنگره بین المللی علوم و فناوری نانو
- کد COI اختصاصی: ICNN02_622
- زبان مقاله: انگلیسی
- تعداد مشاهده: 608
نویسندگان
Amirkabir University
Color engineering group, Azad Islamic University of mahshahr
چکیده
In recent years, increase in surface area of fillers together with their and interaction with polymer matrices as a consequence of decrease in particle size of such fillers, has become an interesting field of research in composite and coating technology[1,2]. Decrease in particle size of a filler, especially when nano-sized particles are considered, can lead to significant changes in mechanical, rheological and thermal properties of the matrix. To date several researches have shown that addition of different nano particles such as silica (SiO2) and alumina (Al2O3) improve mechanical properties especially scratch resistance of automotive clear coats [3,4]. But the effect of this nano addition on other properties such as appearance and curing process of these automotive coatings less have attracted less attention.Due to importance of aesthetic characteristics in the automotive industry, appearance of an automotive coating has a crucial role in inviting a customer to purchase a car. Therefore, investigation regarding decisive appearance parameters for such a purpose is inevitable. The curing process of a coating in addition to affecting its final mechanical properties would also indirectly influence its appearance. Incomplete curing of a coating could lead to insufficient crosslink density and residual functional groups remaining in the coating. Low crosslink density would decrease coating's resistance to water and electrolytes whereas residual functional groups could act as entities which can absorb the harmful part of incident radiations leading to decrease weathering resistance of the coating [5]. Low weathering resistance of the coating affects appearance during service lifeکلیدواژه ها
مقالات مرتبط جدید
- توسعه آلیاژ چهارتایی پایه روی و بررسی ریزساختار در حالت های مختلف میکروسکوپ الکترونی روبشی ( SE و BSE)
- اصول نرم شدن در مواد تغییر شکل یافته به کمک عملیات اولتراسونیک
- ۳D Flow Simulation Inside a Desuperheater
- چرخه عمر فعالیت های اکتشافی و بهره برداری معدن سرب و روی انگوران زنجان با استفاده از روش بیزین
- The effect of welding current on dilution and geometry of coated High Entropy on Ductile Cast Iron substrate
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.