Effect of Process Condition on Tensile Properties of Carbon Fiber
- Effect of Process Condition on Tensile Properties of Carbon Fiber
- 이성호; 김지훈; 구본철; 김준경; 정용식
- Polyacrylonitrile; Carbon fiber; Tensile properties
- Issue Date
- Carbon Letters
- VOL 12, NO 1, 26-30
- For polyacrylonitrile (PAN) based carbon fiber (CF) process, we developed a lab scale wet spinning line and a continuous
tailor-made stabilization system with ten columns for controlling temperature profile. PAN precursor was spun with a different
spinning rate. PAN spun fibers were stabilized with a total duration of 45 to 110 min at a given temperature profile.
Furthermore, a stabilization temperature profile was varied with the last column temperature from 230 to 275℃. Stabilized
fibers were carbonized in nitrogen atmosphere at 1200℃ in a furnace. Morphologies of spun and CFs were observed using
optical and scanning electron microscopy, respectively. Tensile properties of resulting CFs were measured. The results
revealed that process conditions such as spinning rate, stabilization time, and temperature profile affect microstructure and
tensile properties of CFs significantly.
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