Liquid oxygen compatibility of epoxy matrix and carbon fiber reinforced epoxy composite

被引：26
|
作者：
Li, Shichao [1 ,3 ]
Li, Juanzi [2 ]
Cui, Yunguang [1 ]
Ye, Jinrui [4 ]
Chen, Duo [2 ]
Yuan, Yuhuan [1 ]
Liu, Xin [1 ]
Liu, Minjing [1 ]
Peng, Cong [1 ]
Wu, Zhanjun [1 ]
机构：
[1] Dalian Univ Technol, Sch Aeronaut & Astronaut, Fac Vehicle Engn & Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, Sch Mat Sci & Engn, Fac Mech Engn Mat & Energy, Dalian 116024, Peoples R China
[3] Dalian Univ Technol, Sch Chem Engn, Dept Polymer Sci & Mat, State Key Lab Fine Chem, Dalian 116024, Peoples R China
[4] Beihang Univ, Inst Sci & Technol, Beijing 100191, Peoples R China
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2022年 / 154卷
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Resins; Polymer-matrix composites (PMCs); Chemical properties; Liquid oxygen compatibility; CRYOGENIC MECHANICAL-PROPERTIES; FLAME-RETARDANT; FUNCTIONALIZED GRAPHENE; THERMAL-STABILITY; PHOSPHORUS; RESIN; NITROGEN; BEHAVIOR; SILICON;
D O I：
10.1016/j.compositesa.2021.106771
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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, H-1 and P-31 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 center dot released in the initial thermal decomposition stage of DOPO-PGE/epoxy can capture the highly active radical H-center dot, O-center dot(center dot), HO center dot 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.
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收藏
页数：11
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