采用三乙烯四胺(TETA)对多壁碳纳米管(MWNT)改性,红外光谱表明MWNT表面成功接枝氨基基团,拉曼光谱表明胺化过程并未改变MWNT本身的石墨结构.用胺化前后的MWNT与环氧树脂(EP)复合,研究了不同含量MWNT对复合材料力学性能的影响.结果表明胺化碳纳米管对EP有较好的增强增韧作用,添加量为0.75%(质量分数)时可以使复合材料的抗拉强度提高70%,冲击强度提高61%.复合材料断面场发射扫描电镜照片(FESEM)表明胺化MWNT在基体中分散性提高,并且与基体的相容性增强,提高了材料力学性能.
参考文献
| [1] | 袁观明,李轩科,张铭金,吕早生,张光德.碳纳米管对环氧树脂力学性能的影响[J].宇航材料工艺,2005(02):38-41. |
| [2] | Kumar RS;Alagar M .Studies on mechanical, thermal, and morphology of diglycidylether-terminated polydimethylsiloxane-modified epoxy-bismaleimide matrices[J].Journal of Applied Polymer Science,2006(1):668-674. |
| [3] | 曲忠先,焦剑,王雪荣,顾军渭.环氧树脂基纳米复合材料的研究进展[J].粘接,2005(03):43-45. |
| [4] | Shen Jianfeng;Huang Weishi;Wu Liping et al.Study on amino-functionalized muhiwalled carbon nanotubes[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2007,464:151 - 156. |
| [5] | Andrew R;Weisenberger M C .Carbon nanotube polymer composites[J].Current Opinion in Solid State and Materials Science,2004,8(01):31 - 37. |
| [6] | T.Ramanathan;F.T.Fisher;R.S.Ruoff;L.C.Brinson .Amino-Functionalized Carbon Nanotubes for Binding to Polymers and Biological Systems[J].Chemistry of Materials,2005(6):1290-1295. |
| [7] | Gojny FH.;Nastalczyk J.;Roslaniec Z.;Schulte K. .Surface modified multi-walled carbon nanotubes in CNT/epoxy-composites[J].Chemical Physics Letters,2003(5-6):820-824. |
| [8] | 陈宪宏,林明,陈振华.多壁碳纳米管功能化及其增韧环氧树脂的研究[J].材料导报,2007(z1):121-123,133. |
| [9] | F.H. GOJNY;M.H.G. WICHMANN;U. KOPKE .Carbon nanotube-reinforced epoxy-composites: enhanced stiffness and fracture toughness at low nanotube content[J].Composites science and technology,2004(15):2363-2371. |
| [10] | J. Sandler;M. S. P. Shaffer;T. Prasse;W. Bauhofer;K. Schulte;A. H. Windle .Development of a dispersion process for carbon nanotubes in an epoxy matrix and the resulting electrical properties[J].Polymer: The International Journal for the Science and Technology of Polymers,1999(21):5967-5971. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%