ナノ繊維強化ポリプロピレンの力学特性

抄録

Mechanical properties of nano-sized fiber reinforced polypropylene were investigated by using a carbon nanotube reinforced polypropylene. Dumbbell and beam shaped carbon nanotube reinforced polypropylene specimens were prepared by injection molding. Uniaxial tensile and three point bending tests were conducted to identify strength and modulus. Tensile yield stress and modulus of polypropylene were decreased by increasing carbon nanotube content. Flexural strength and the modulus were not affected by increasing carbon nanotube content. Yield stress was calculated from three point bending test results, and it was found that there was a positive correlation between the stress and tensile modulus. It was also suggested that the slope of this relationship represents the break elongation of carbon nanotube.