Heterogeneous and microporous structure evolution of heated/radiated polyacrylonitrile fibers revealed by X-ray micro-computed tomography and scattering
Yuhang HuangMinistry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, ChinaRuiqi ShaoMinistry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, ChinaFeng TianShanghai Institute of Applied Physics, China Academy of Sciences, Shanghai 201800, ChinaHaiting ShiMinistry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, ChinaGaohui WangMinistry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, ChinaWei WangMinistry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, ChinaXiaoyuan PeiMinistry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, ChinaYanling XueShanghai Institute of Applied Physics, China Academy of Sciences, Shanghai 201800, ChinaZhiwei XuMinistry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, China
2025en
ABI
Annotatsiya
scattering experiments showed that the microporous size of irradiated PAN fibers decreased during heat treatment relative to untreated fibers. Irradiation enables oxygen to diffuse deeper into the fiber, enhances oxidation reactions, and facilitates the cross-linking and cyclization of PAN.
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