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@article{ART002842812},
author={Wang Xinyu and Qian Xin and Zhang Yonggang and Wang Xuefei and Song Shulin and Zhang Cheng},
title={Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites},
journal={Carbon Letters},
issn={1976-4251},
year={2021},
volume={31},
number={3},
pages={449-461},
doi={10.1007/s42823-020-00173-7}

TY - JOUR
AU - Wang Xinyu
AU - Qian Xin
AU - Zhang Yonggang
AU - Wang Xuefei
AU - Song Shulin
AU - Zhang Cheng
TI - Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites
JO - Carbon Letters
PY - 2021
VL - 31
IS - 3
PB - Korean Carbon Society
SP - 449
EP - 461
SN - 1976-4251
AB - In this study, nitric acid oxidation with varied treatment temperature and time was conducted on the surfaces of polyacrylonitrile-based ultrahigh modulus carbon fibers. Scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy and surface tension/dynamic contact angle instruments were used to investigate changes in surface topography and chemical functionality before and after surface treatment. Results showed that the nitric acid oxidation of ultrahigh modulus carbon fibers resulted in decreases in the values of the crystallite thickness Lc and graphitization degree. Meanwhile, increased treating temperature and time made the decreases more obviously. The surfaces of ultrahigh modulus carbon fibers became much more activity and functionality after surface oxidation, e.g., the total surface energy of oxidized samples at 80 °C for 1 h increased by 27.7% compared with untreated fibers. Effects of surface nitric acid oxidation on the mechanical properties of ultrahigh modulus carbon fibers and its reinforced epoxy composites were also researched. Significant decreases happened to the tensile modulus of fibers due to decreased Lc value after the nitric acid oxidation. However, surface treatment had little effect on the tensile strength even as the treating temperature and processing time increased. The highest interfacial shear strength of ultrahigh modulus carbon fibers/epoxy composites increased by 25.7% after the nitric acid oxidation. In the final, surface oxidative mechanism of ultrahigh modulus carbon fibers in the nitric acid oxidation was studied. Different trends of the tensile strength and tensile modulus of fibers in the nitric acid oxidation resulted from the typical skin–core structure.
KW - Ultrahigh modulus carbon fiber Nitric acid treatment Microstructure Surface activity
DO - 10.1007/s42823-020-00173-7
ER -

Wang Xinyu, Qian Xin, Zhang Yonggang, Wang Xuefei, Song Shulin and Zhang Cheng. (2021). Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites. Carbon Letters, 31(3), 449-461.

Wang Xinyu, Qian Xin, Zhang Yonggang, Wang Xuefei, Song Shulin and Zhang Cheng. 2021, "Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites", Carbon Letters, vol.31, no.3 pp.449-461. Available from: doi:10.1007/s42823-020-00173-7

Wang Xinyu, Qian Xin, Zhang Yonggang, Wang Xuefei, Song Shulin, Zhang Cheng "Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites" Carbon Letters 31.3 pp.449-461 (2021) : 449.

Wang Xinyu, Qian Xin, Zhang Yonggang, Wang Xuefei, Song Shulin, Zhang Cheng. Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites. 2021; 31(3), 449-461. Available from: doi:10.1007/s42823-020-00173-7

Wang Xinyu, Qian Xin, Zhang Yonggang, Wang Xuefei, Song Shulin and Zhang Cheng. "Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites" Carbon Letters 31, no.3 (2021) : 449-461.doi: 10.1007/s42823-020-00173-7

Wang Xinyu; Qian Xin; Zhang Yonggang; Wang Xuefei; Song Shulin; Zhang Cheng. Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites. Carbon Letters, 31(3), 449-461. doi: 10.1007/s42823-020-00173-7

Wang Xinyu; Qian Xin; Zhang Yonggang; Wang Xuefei; Song Shulin; Zhang Cheng. Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites. Carbon Letters. 2021; 31(3) 449-461. doi: 10.1007/s42823-020-00173-7

Wang Xinyu, Qian Xin, Zhang Yonggang, Wang Xuefei, Song Shulin, Zhang Cheng. Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites. 2021; 31(3), 449-461. Available from: doi:10.1007/s42823-020-00173-7

Wang Xinyu, Qian Xin, Zhang Yonggang, Wang Xuefei, Song Shulin and Zhang Cheng. "Surface oxidation of PAN-based ultrahigh modulus carbon fibers (UHMCFs) and its effect on the properties of UHMCF/EP composites" Carbon Letters 31, no.3 (2021) : 449-461.doi: 10.1007/s42823-020-00173-7