Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 138, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2020.106022
Keywords
Carbon fibres; Thermoplastic resin; Adhesion; Damage mechanics
Funding
- Ministry of Science and Technology of Taiwan [Most 108-2221-E035 -060 -MY2, 108-2221-E-468 -017-]
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A novel manufacturing technique called long-fiber-reinforced thermoplastic (LFT) is proposed to produce continuous flexible composite carbon fibers and fabrics. During the process, a polyester hot-melt adhesive (MPTU) is added to thermoplastic polyurethane (TPU) to form TPU blends that can improve the interfacial-bonding level. The TPU blends are extruded to enwrap carbon fibers and form an outer layer. The effects of the TPU blends on the composite are examined to determine the optimal parameters. At a TPU/MPTU ratio of 85/15 wt%, the blend exhibits good miscibility and the fiber tows show the optimal cluster effect and knot properties. Consequently, the specific strength of the optimal composite carbon fibers reaches 349.27 MPa.g(-1).cm(3). The resulting of composite carbon fabrics shows flexibility, and an average electromagnetic-interference shielding efficiency of 28.35 dB. Overall, this study reveals that LFT technique is an effective and novel method of developing carbon fiber-reinforced thermoplastics.
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