Study the effect of rubber on mechanical properties of epoxy resin

الملخص

Epoxy 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 (EP 70/ NBR 30) %  and (EP 80 / NBR 20)%  . Some mechanical properties were carried out on these samples like: impact strength, compressive strength and hardness.   The results showed that the polymer blend (EP 70 / NBR 30) % has higher values of all these properties compared with other samples while neat epoxy has the lowest values of all properties. The results from the test showed that, impact strength increased from 27KJ/m² for polymer blend (EP 70 / NBR 30) % to 33KJ/m² relative to the polymer blend (EP 80 / NBR 20)% and the compressive strength and hardness values increased by (17%) and( 65%) respectively compared with net epoxy.