Abstract
Abstract A wholly aromatic polyamide (aramid), prepared by the polycondensation of (3-aminophenyl) (4-aminophenyl) ether with isophthaloyl dichloride, was blended with commercially available poly (ethersulphone)s (PES and Cardo-PES) in a N-methyl-2-pyrrolidone solution. The thermal and mechanical properties of the blend films cast from NMP solution were investigated. When 80/20(w/w) aramid/Cardo-PES blend was used as an adhesive, the value of the tensile shear strength of single-lap joints had a maximum. Scanning electron microscopy (SEM) of the fracture area suggested that blending Cardo-PES enhanced some interface strength between polymer and aluminium.
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