TY - JOUR
T1 - Liquid oxygen compatibility of epoxy matrix and carbon fiber reinforced epoxy composite
AU - Li, Shichao
AU - Li, Juanzi
AU - Cui, Yunguang
AU - Ye, Jinrui
AU - Chen, Duo
AU - Yuan, Yuhuan
AU - Liu, Xin
AU - Liu, Minjing
AU - Peng, Cong
AU - Wu, Zhanjun
N1 - Publisher Copyright:
© 2021
PY - 2022/3
Y1 - 2022/3
N2 - Liquid oxygen compatibility is the key to evaluating whether carbon fiber reinforced epoxy composites (CF-composite) can be used in liquid oxygen environment. In this work, DOPO-PGE was prepared to improve the liquid oxygen compatibility of epoxy resin and CF-composite. The FTIR, 1H and 31P NMR spectrum was used to confirm the chemical structure of DOPO-PGE. According to the UL94 test results, TG-FTIR, char residue analysis, and XPS analysis, the mechanism of DOPO-PGE affecting the liquid oxygen compatibility of epoxy resin is mainly attributed to the fact that the radical PO[rad] released in the initial thermal decomposition stage of DOPO-PGE/epoxy can capture the highly active radical H[rad], [rad]O[rad], HO[rad] and terminated the radicals’ chain exothermic reactions. The CF-composites show better liquid oxygen compatibility than epoxy resin matrix. However, the long-term liquid oxygen immersion can deteriorate the liquid oxygen compatibility of CF-composites.
AB - Liquid oxygen compatibility is the key to evaluating whether carbon fiber reinforced epoxy composites (CF-composite) can be used in liquid oxygen environment. In this work, DOPO-PGE was prepared to improve the liquid oxygen compatibility of epoxy resin and CF-composite. The FTIR, 1H and 31P NMR spectrum was used to confirm the chemical structure of DOPO-PGE. According to the UL94 test results, TG-FTIR, char residue analysis, and XPS analysis, the mechanism of DOPO-PGE affecting the liquid oxygen compatibility of epoxy resin is mainly attributed to the fact that the radical PO[rad] released in the initial thermal decomposition stage of DOPO-PGE/epoxy can capture the highly active radical H[rad], [rad]O[rad], HO[rad] and terminated the radicals’ chain exothermic reactions. The CF-composites show better liquid oxygen compatibility than epoxy resin matrix. However, the long-term liquid oxygen immersion can deteriorate the liquid oxygen compatibility of CF-composites.
KW - A. Polymer-matrix composites (PMCs)
KW - A. Resins
KW - B. Chemical properties
KW - Liquid oxygen compatibility
UR - https://www.scopus.com/pages/publications/85121508212
U2 - 10.1016/j.compositesa.2021.106771
DO - 10.1016/j.compositesa.2021.106771
M3 - Article
AN - SCOPUS:85121508212
SN - 1359-835X
VL - 154
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 106771
ER -