نویسندگان
1 دانشکده مواد، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات
2 گروه پوششهای سطح و خوردگی؛قطب علمی رنگ، موسسه پژوهشی علوم و فناوری رنگ و پوشش
3 گروه مواد، دانشگاه بینالمللی امام خمینی(ره)
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The effect of different types of nano silica (nano cristobalite, hydrophilic nano silica and hydrophobic nano silica) on some properties of two component polyurethane clear coat has been studied. Rheometric studies at low shear rates shows a shear thinning behavior in the clear coats containing nano cristobalite and hadrophylic nano silica. The haze value was acceptable for clear coat containing surface treated nano silica (hydrophobic). Nano indentation measurements show the hardness value has increased in presence of nano particles and the scratch depth has decreased.
کلیدواژهها [English]