@article{oai:jaxa.repo.nii.ac.jp:00022714, author = {松崎, 亮介 and 上田, 政人 and 並木, 正規 and 鄭, 泰根 and 浅原, 宏典 and 堀口, 敬祐 and 中村, 大志 and 轟, 章 and 平野, 義鎮 and Matsuzaki, Ryousuke and Ueda, Masahito and Namiki, Masaki and Jeong, Tae-Kun and Asahara, Hirosuke and Horiguchi, Keisuke and Nakamura, Taishi and Todoroki, Akira and Hirano, Yoshiyasu}, journal = {Scientific Reports}, month = {Mar}, note = {We have developed a method for the three-dimensional (3D) printing of continuous fiber-reinforced thermoplastics based on fused-deposition modeling. The technique enables direct 3D fabrication without the use of molds and may become the standard next-generation composite fabrication methodology. A thermoplastic filament and continuous fibers were separately supplied to the 3D printer and the fibers were impregnated with the filament within the heated nozzle of the printer immediately before printing. Polylactic acid was used as the matrix while carbon fibers, or twisted yarns of natural jute fibers, were used as the reinforcements. The thermoplastics reinforced with unidirectional jute fibers were examples of plant-sourced composites; those reinforced with unidirectional carbon fiber showed mechanical properties superior to those of both the jute-reinforced and unreinforced thermoplastics. Continuous fiber reinforcement improved the tensile strength of the printed composites relative to the values shown by conventional 3D-printed polymer-based composites., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: PA1620009000}, title = {Three-dimensional printing of continuous-fiber composites by in-nozzle impregnation}, volume = {6}, year = {2016} }