أثر الأشعة الفوق البنفسجية و المحاليل الكيميائية في قيم صلادة برنل لمواد متراكبة هجينة دقائقية

Abstract EN

In this work a hybrid composite materials were prepared containing matrix of blend (Novolac + Polyester) reinforced by different reinforcing materials (Alumina powder + Carbon black powder CB + Asbestos fiber).

The prepared hybrid composite materials are H1 was blend + (Al2O3 + As) (20 %) , H2 was blend + (CB + As) (20 %) and H3 was blend + (Al2O3 + CB + As) (20 %).

All samples related to Brinell tests were prepared by Injection molding process.

Brinell hardness tests in different exposure time to (UV) (hour) and different chemical solutions at different immersion times The mechanical experimentations results were in favour of the samples (H3) with an obvious weakness of the samples (H2) and a decrease of these properties with a rise in exposure time to (UV) and the increasing of the immersion times in the chemical solutions.