Impact Strength of ZnO and Sand/(Epoxy-Polyester) Blend Composites

Rafid Hamad Khalaf, Faik hAMMAD Anter, Abdul Al-Hameed R.Al Sarraf


This work included preparation five groups polymeric composites. From matrix of polymer blend (Epoxy (EP) 80% + unsaturated polyester (UPE) 20%) with( Nano ZnO) with weight fraction (2%,4%,6%,8%) of zinc oxide (ZnO), with weight fraction (5%,10%,15%,20%), also sand material in three different grain size (53,63,74) μm respectively with weight fraction (5%,10%,15%,20% ) and by employing hand lay-up method. First group (G1: nano ZnO): consists of four samples prepared from reinforcing blend (80%EP/20%UPE) with (ZnO powder) in the same above weight fraction. Second group (G2: powder ZnO): consists of four samples prepared from reinforcing Blend (80%EP/20%UPE with (powder ZnO) in the same above weight fraction. Third group (G3: powder Sand) and fourth group (G4: powder Sand) and fifth group (G5: powder Sand) in the same weight fraction. It was found that the reinforcement of the above materials leads to an improvement in mechanical properties and impact resistance of composite materials in normal conditions.

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