以二维渐开线型C/C扩张段为应用背景,比较了硼酚醛与其它耐烧蚀酚醛(钡酚醛、氨酚醛等)的主要理化性能,分析了硼酚醛树脂固化、裂解过程,探讨了炭布/硼酚醛复合材料的固化、后固化、炭化工艺,并以硼酚醛为基体前驱体制作了二维平板C/C及二维渐开线型小C/C扩张段。平板状C/C在炭化过程中无分层,力学性能较高;二维C/C扩张段通过工艺优化解决了分层问题,环向拉伸强度可达45MPa以上。实验结果说明硼酚醛树脂可用于二维渐开线型C/C扩张段的制造。
The curing, post-curing, and carbonization processes of carbonfabric reinforced phenolics were studied based on the thermophysical properties of boron -phenolics. The 2D laminated C/C and 2D involute C/C exit cone were fabricated. It was found that the laminated C/C was non-delaminating during carbonization and had high mechanical properties. The delamination-free 2D involute C/C exit cones with hoop tensile strength of 45?MPa were prepared through processes optimization. The results showed that boron-phenolics could be used to produce 2D involute C/C exit cone.
参考文献
[1] | Fitzer E .The future of carbon-carbon composites[J].Carbon,1987,25(02):163. |
[2] | Michel Bercloyes.SRM nozzle design breakthroughs with advanced composite materials[A].,1993 |
[3] | Broquere B H.Carbon/carbon nozzle exit cones SEP's experience and new devlopments[A].,1997 |
[4] | 苏君明,崔红,李瑞珍,周绍建,苏哲安,李雅娣.新型针刺炭布C/C复合材料的结构与性能[J].新型炭材料,2000(02):11-15. |
[5] | Pagano N J;Hus P W.Geometric analysis of rosetta exit cones[A].,1979 |
[6] | Savage G.Carbn-Carbon Composites[M].London:Chapman & Hall,1993:129. |
[7] | 苏波.复合材料学[M].长沙:国防科技大学出版社,1985:175. |
[8] | Stokes E H.Kinetics of pyrolysis mass loss from cured phenolic resin[A].,1994 |
[9] | 肖翠荣;王兴业.复合材料工艺学[M].长沙:国防科技大学出版社,1992:189. |
[10] | Julius Jortner.Relation of fiber contact arrays to carbonization shrinkage[M].,1995:76. |
[11] | Mundt C M;Edie D D.High thermal conductivity carbon/carbon composites made from PBO-based carbon fiber[A].PA,1997:540. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%