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Tuning the surface grooves of carbon fibers by dry-jet gel-spinning
- An, Feng, Zhou, Pucha, Lu, Chunxiang, Liu, Yaodong
- Carbon 2019 v.143 pp. 200-203
- carbon, carbon fibers, compression strength, gels, shear strength, spinning
- It is widely believed that wet-spinning and dry-jet wet/gel spinning make carbon fibers (CFs) with grooved and smooth surfaces, respectively. Here, dry-jet gel spinning was further developed to fabricate CFs with tunable surface topographies from smooth surface to uniform grooves. It opens a new way to fabricate CFs with combined advantages including surface grooves, high extruding/taking-up speed and less surface defects, which cannot be achieved by traditional wet spinning techniques. The composites made from newly developed CFs are promising to possess improved strength, inter lamellar shear strength and compressive strength.