超低温环境用改性氰酸酯树脂基碳纤维复合材料的制备与性能
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摘要
采用聚酚氧树脂(PKHH)和环氧树脂(EP)共改性氰酸酯树脂(CE)制备改性氰酸酯树脂基体(CEPK),CEPK基体与处理好碳纤维织物复合制成改性氰酸酯复合材料(CEPKCF)。结果表明:10wt%PKHH改性CEPK基体具有适中的工艺窗口,90～150℃区间内黏度维持在900～1000mPa·s,120℃维持30min体系黏度不增加;CEPKCF复合材料具有较好的低温力学性能、耐久性和冷热循环稳定性,室温拉伸强度为730.3MPa,-196℃拉伸强度为693.0MPa,液氮环境下浸泡15d,拉伸强度无明显变化,经历40次循环(-196～200℃)后,试样表面无贯穿性裂纹。
The phenoxy resin(PKHH)and epoxy resin(EP)was used to co-modify cyanate ester resin(CE), after that the modified cyanate ester matrix(CEPK)was prepared, then the CEPK was laminated with treated carbon fabric to produce a kind of composite CEPKCF. The results showed the CEPK matrix modified with 10wt% PKHH had a moderate processing window, whose viscosity could be retained in the range of 900 ～1000mPa·s at 90～150℃, and could hardly be changed at 120℃ for 30 min. The CEPKCF composite had excellent mechanical strength, durability and hot-cold cycle satiability. The tensile strength of cured CEPKCF composite was 730.3MPa and 693.0MPa at room temperature and at-196℃ respectively. The tensile strength of CEPKCF composite sample immersed in liquid nitrogen for 15 days didn't change obviously, and the surface of sample had no complete crack after 40 cycles(-196℃～200℃).
The phenoxy resin(PKHH)and epoxy resin(EP)was used to co-modify cyanate ester resin(CE), after that the modified cyanate ester matrix(CEPK)was prepared, then the CEPK was laminated with treated carbon fabric to produce a kind of composite CEPKCF. The results showed the CEPK matrix modified with 10wt% PKHH had a moderate processing window, whose viscosity could be retained in the range of 900 ～1000mPa·s at 90～150℃, and could hardly be changed at 120℃ for 30 min. The CEPKCF composite had excellent mechanical strength, durability and hot-cold cycle satiability. The tensile strength of cured CEPKCF composite was 730.3MPa and 693.0MPa at room temperature and at-196℃ respectively. The tensile strength of CEPKCF composite sample immersed in liquid nitrogen for 15 days didn't change obviously, and the surface of sample had no complete crack after 40 cycles(-196℃～200℃).
引文
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[2] NISHIJIMA S,OKADA Y,HONDA Y.Evaluation of epoxy resin by position annihilation for cryogenic use[M].Advances in Cryogenic Engineering Materials.New York:Springer US,1994:1137~1144.
[3]姜明,贾近,肖海英,等.温湿场交变环境下外加载荷对不同孔隙率CERP弯曲力学性能的影响[J].哈尔滨工业大学学报,2018,50(3):39~40.
[4] MICHAEL J R. Composite Structures on the DC-XA Reusable Launch Vehicle[A]. 28th International SAMPE Technical Conference[C].Washington, USA, 1996:530~541.
[5]王冠,王荣国,张海琪,等.适用于液氧环境下热固性树脂基体的研究进展及展望[J].化学与黏合,2017,39(3):211~214.
[6]王晓洁,梁国正,张伟,等.氰酸酯树脂在航空航天领域应用研究进展[J].材料导报, 2005, 19(5):70~72.
[7] KIM E P, GRAF N A, ELY K W. Cyanate ester composites for oxygen containment:US,6,334,589[P]. 2002-01-01.
[8]王冠,付刚,高堂铃,等.改性氰酸酯胶膜的制备与性能[J].宇航材料工艺,2012,42(3):42~46.
[9]王冠,付刚,高堂铃,等.氰酸酯基耐高温低介电载体胶膜的制备与性能[J].宇航材料工艺,2008,38(2):12~16.
[10]王冠,付刚,高堂铃,等.一种先进雷达天线罩粘接用胶膜的研制[J].中国胶粘剂,2016,25(11):23~27.
[11] WANG G, WANG R, FU G, et al. Study on phenolphthalein poly(ether sulfone)-modified cyanate ester resin and epoxy resin blends[J]. Polymer Engineering and Science, 2015, 55(11):2591~2602
[12] WANG G, FU G, WANG RG, et al. Preparation and characterization of novel film adhesives based on cyanate ester resin for bonding advanced radome[J]. Internatonal Journal of Adhesion&Adhesives, 2016, 68:80~86.
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[14]张海琪,王冠,高堂铃,等.聚酚氧/环氧树脂共改性氰酸酯树脂的制备及其低温性能[J].航空材料学报,2018,38(3):83~90.
[15]石佩洛,王飞,逄锦程,等.脱蜡处理对石英布/氰酸酯复合材料的性能影响[J].玻璃钢/复合材料,2017(2):69~71.
[16]张晓洁,张军营,肖志刚,等.聚倍半硅氧烷树脂/石英纤维复合材料耐高温性能研究[J].玻璃钢/复合材料,2008(6):24~27.
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