收稿日期: 2019-06-19
网络出版日期: 2019-10-06
基金资助
国家重点研发计划资助项目(2017YFB1103401-02)
Preparation of high temperature resistant epoxy composites reinforced by carbon fiber
Received date: 2019-06-19
Online published: 2019-10-06
将二聚酸(dimer acid, DFA)改性缩水甘油胺类环氧树脂(4,4'-methylenebis(N,N-diglycidylaniline)/N, N, N', N'-tetraglycidyl-2, 2-bis [4-(4-aminophenoxy) phenyl] propane, TGDDE/TGBAPP), 并和其他具有不同黏度的多官能环氧树脂组成环氧树脂预浸料体系, 制得了一种适用于热熔膜法制备碳纤维增强环氧树脂预浸料的环氧树脂体系及耐高温碳纤维增强环氧树脂复合材料. 研究结果表明: 该树脂的适用期达 60 d 以上, 固化物热稳定性达300 ℃ 以上; 复合材料具有较好的耐热性能, 长期使用其耐热温度可达 160 ℃ 以上, 符合高性能碳纤维增强环氧树脂复合材料对耐热性能的要求.
梁磊, 俞鸣明, 王鹏 . 耐高温碳纤维增强环氧树脂复合材料的制备[J]. 上海大学学报(自然科学版), 2021 , 27(5) : 928 -939 . DOI: 10.12066/j.issn.1007-2861.2194
An epoxy resin prepreg system composed of glycidyl amine epoxy resins modified by dimer acid and other polyfunctional epoxy resins with different viscosities was developed. The hot-melt film method was used to obtain epoxy resin prepregs reinforced by carbon fiber and high-temperature-resistant epoxy composites reinforced by carbon fiber. The application period of the resin could last longer than 60 days. The thermal stability temperature of the solidified product was higher than 300 ℃, and its long-term use temperature was higher than 160 ℃. The composite material exhibited good heat resistance. The heat resistance temperature could reach above 160 ℃, which could meet the heat resistance requirements of high-performance epoxy composites reinforced by carbon fiber.
Key words： carbon fiber; epoxy resin; composite material; high temperature resistance
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