为改善石墨纤维/双酚A二氰酸酯(M40J/BADCy)复合材料的层间剪切强度,采用立体四针状ZnO晶须对M40J/BADCy复合材料进行增强.红外光谱及凝胶实验研究表明,ZnO晶须对BADCy的固化反应有催化作用,使BADCy/E51树脂体系的后固化温度由200℃降为180℃.力学性能测试表明,未处理的ZnO晶须因与BADCy基体粘结不好,仅使M40J/BADCy复合材料的弯曲模量有所提高.经KH560处理的ZnO晶须对M40J/BADCy复合材料的层间剪切强度提高明显,ZnO晶须含量为10%时,增强效果最佳,使M40J/BADCy复合材料的层间剪切强度由原来的77.6 MPa提高到91.2 MPa,弯曲模量由原来的178.9 GPa提高到207.4 GPa,而弯曲强度变化不大.SEM研究表明,立体结构的晶须能很好地分散于M40J/BADCy复合材料层间,依靠晶须的层间 "钉扎"提高复合材料的层间剪切强度.
参考文献
| [1] | Liang Guozheng, Zhang Mingxi.Enhancement of processability of cyanate ester resin via copolymerization with epoxy resin[J].Journal of Applied Polymer Science,2002, 85(11): 2377-2381. |
| [2] | Grenier L, Lartigau M F, Grenier P.A study of the mechanisms and kinetics of the molten state reaction of non-catalyzed cyanate and epoxy-cyanate systems[J].European Polymer Journal,1995, 31(11):1139-1153. |
| [3] | Harismendy I, Gomez C M, Rio M D, et al.Cure monitoring of catalysed cyanate ester resins[J]. Polymer International, 2000,49(7): 735-742. |
| [4] | Kern K T, Stancil P C, Harries W L.Simulated space environmental effects on a polyetherimide and its carbon fiber-reinforced composites[J].SAMPE Journal, 1993, 29(3):29-44. |
| [5] | Bansemir H, Haider O. Fibre composite structures for space applications--recent and future developments[J].Cryogenics. 1998,38(1): 51-59. |
| [6] | Zimcik D G, Maag C R.Results of apparent atomic oxygen reactions with spacecraft materials during shuttle flight STS-41G[J].J Spacecraft and Rocket, 1988,25(2): 62-168. |
| [7] | Sykes G F, Bowles D E. Space radiation effects on the dimensional stability of a toughened epoxy graphite composite[J].SAMPE Quarterly,1986,17(4): 39-45. |
| [8] | 赵渠森(ZHAO Qusen).先进复合材料手册(Manual of Advanced Composites)[M].北京(Beijing):机械工业出版社(Mechanical Industrial Publishing House),2003.925-954. |
| [9] | 吴人洁(WU Renjie).复合材料(Composite)[M].天津(Tianjin):天津大学出版社(Tianjin University Publishing House),2000.385-426. |
| [10] | 潘金生(PAN Jinsheng),陈永华(CHEN Yonghua).晶须及其应用(Whiskers and their applications)[J].复合材料学报(Acta Materiae Compositae Sinica),1995,12(4):1-7. |
| [11] | 胡晓兰(HU Xiaolan).晶须改性热固性树脂的研究(The study on thermosetting resin modified by whisker)[D].西安:西北工业大学博士论文(Xi'an:Doctoral Thesis of Northwestern Polytechnical University),2002. |
| [12] | 刘建华(LIU Jianhua),孙杰(SUN Jie),李松梅(LI Songmei),等(et al).四脚状氧化锌晶须的微波电磁性能(Preparation and electromagnetic performance of tetrapod-shaped ZnO whiskers)[J].复合材料学报(Acta Materiae Compositae Sinica),2003,20(6):121-124. |
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