دراسة الخواص الفيزيائية لراتنج البولي أستر غير المشبع مدعم بطور مطاطي

الملخص EN

Unsaturated polyester resin widely separated because of its low cost and its good physical properties.

To get higher impact resistance, it has been blended with nitrile rubber (NBR), for the weight ratios (UP 70/ NBR 30) % and (UP 80 / NBR 20) %.

The first blend was reinforced with (12 %) of glass powder.

Physical properties were carried out on these samples like friction coefficient (F.C) and thermal conductivity.

The results showed that the composite material reinforced with glass powder has showed higher thermal conductivity and the polymer blend (UP 70 / NBR 30) % has showed higher friction coefficient.

The thermal conductivity results showed that the thermal conductivity values (K) for all samples increased from their levels before immersion of the salt solution with a concentration of (0.3N) and normal water.

As for the composite material reinforced with glass powder and the polymeric blend (UP 70 / NBR 30) %, they showed a decrease in (K) values after 28 days of immersion in the normal water