Interlaminar fracture toughness of some polymer blends reinforced by fiber glass

الملخص EN

The interlaminar fracture toughness of polymer blends reinforced by glass fiber has been investigated.

Epoxy (EP), unsaturated polyester (UPE), polystyrene (PS), polyurethane (PU) and their blends with different ratios (10 % PS / 90 % EP), (20 % PS / 80 % EP), (20 % PU / 80 % EP) and (20 % PU / 80 % UPE) were chosen as a matrices A sheet of composites were prepared using hand lay-up method, these sheet were cut as the double cantilever beam (DCB) specimen to determine interlaminar fracture toughness of these composites.

Its found that, blending of EP, UPE with 20 % of PU will improve the interlaminar fracture toughness, but the adding of 10 % PS, 20 % PS to EP will decrease the interlaminar toughness of these composites.