Molding Process
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PAN pre-oxidation skin-core structure oxygen content gradient
Problem Phenomenon
The oxygen content gradient along the fiber radial direction is large
Cause Analysis
Pre-oxidation temperature and time control affect the oxygen diffusion and reaction rate
Solution
Optimize the temperature curve and time; promote oxygen diffusion in the fiber
Key Takeaway
Uniform oxidation is the key to obtaining homogeneous pre-oxidized fiber and ultimately high-quality carbon fiber
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