炭素繊維強化ナイロン66成形物の繊維配向と力学的性質
Fiber Orientation and Mechanical Properties for Molded Articles of Carbon Fiber Reinforced Nylon 66
小川俊夫・美馬正道・田矢直紀
Ogawa, Toshio / Mima, Masamichi / Taya, Naoki
Carbon fiber reinforced nylon 66 was molded by an injection machine. The fiber orientation was determined for the molded articles. In the low fiber content (〜15wt%), the fiber was oriented to the flowing direction of the resin. However, in the high fiber content, the fiber was only oriented in the center of the articles, and disoriented in the surface layer. The elastic modulus and the tensile strength of the articles increased with the fiber content, but the elongation at break decreased drastically with the increase of the fiber content. Namely, the behavior changed from ductile fracture to brittle one.
Key words: Carbon fiber / Nylon 66 / Molded article / Fiber orientation / Tensile properties