Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs

This study focuses on mechanical characterization of carbon fiber reinforced polymer (CFRP) laminates with non-treated and treated multiwalled nanotubes (CNTs) using nitric acid. The CNTs were acid to obtain carboxylic functional group. epoxy resins are mixed 0.3%wt at a constant mixing speed 2000 rpm times varied from 24 96 h. Laminates show an increase in the flexural strength by 17.4 15.3% h as compared control laminates. test results indicated that have improved interlaminar shear failure stress which is 14 7% higher specimen. Improvement behavior was achieved for functionalized based prevents agglomeration. Longer time (96 h) not beneficial enhancing properties due break-up small aggregates overcoming effect van der Waals forces.